Javadocs

- Begin by implementing forceSync to the queue system as we know the chunk will be accessible to edits in some cases (i.e. population).
 - Also implement custom SideEffectSets to override any decided by the default chunk consumer, as we do NOT want to update neighbours in population (this caused infinite generation to be required causing the lag and server death). We also do not want to enqueue the QueueCoordinator in AugmentedUtils as this would write to the world and update neighbours before we might want to (plus it's just used to restrict and offset the blocks being set)
 - Then implement disabling any biomes from being saved/set to the queue to prevent augmented worlds having their biomes overriden in roads
 - Consequently fix ScopedQueueCoordinator, preventing the y value of blocks being set from needlessly being changed, fixing road heights in augmented worlds
 - Finally we do not need a method with chunkObject in the signature in AugmentedUtils as this is no longer used by the method

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -27,6 +27,7 @@ body:
       description: Which server version version you using? If your server version is not listed, it is not supported. Update to a supported version first.
       multiple: false
       options:
+        - '1.18.2'
         - '1.18.1'
         - '1.18'
         - '1.17.1'

.github/workflows/build.yml

@@ -8,11 +8,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v2.4.0
+        uses: actions/checkout@v3
       - name: Validate Gradle Wrapper"
-        uses: gradle/wrapper-validation-action@v1.0.4
+        uses: gradle/wrapper-validation-action@v1
       - name: Setup Java
-        uses: actions/setup-java@v2.5.0
+        uses: actions/setup-java@v3
         with:
           distribution: temurin
           java-version: 17

.github/workflows/codeql.yml

@@ -23,15 +23,15 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v1
+        uses: github/codeql-action/init@v2
         with:
           languages: ${{ matrix.language }}
 
       - name: Autobuild
-        uses: github/codeql-action/autobuild@v1
+        uses: github/codeql-action/autobuild@v2
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v1
+        uses: github/codeql-action/analyze@v2

.github/workflows/release-drafter.yml

@@ -14,6 +14,6 @@ jobs:
     if: ${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}
     runs-on: ubuntu-latest
     steps:
-      - uses: release-drafter/release-drafter@v5.18.1
+      - uses: release-drafter/release-drafter@v5.19.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.gitignore

@@ -41,7 +41,8 @@ hs_err_pid*
 *.iml
 
 ## Directory-based project format:
-.idea/
+/.idea/*
+!/.idea/icon.svg
 # if you remove the above rule, at least ignore the following:
 
 # User-specific stuff:
@@ -74,9 +75,6 @@ hs_err_pid*
 # IntelliJ
 /out/
 
-# mpeltonen/sbt-idea plugin
-.idea_modules/
-
 # JIRA plugin
 atlassian-ide-plugin.xml
 

.idea/icon.svg

@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:cc="http://creativecommons.org/ns#" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:svg="http://www.w3.org/2000/svg" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 4000 3333.3333" height="3333.3333" width="4000" xml:space="preserve" id="svg2" version="1.1">
+		<metadata id="metadata8">
+			<rdf:RDF>
+				<cc:Work rdf:about="">
+					<dc:format>image/svg+xml</dc:format>
+                    <dc:type rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+				</cc:Work>
+			</rdf:RDF>
+		</metadata>
+    <defs id="defs6">
+			<clipPath id="clipPath18" clipPathUnits="userSpaceOnUse">
+				<path id="path16" d="M 0,2500 H 3000 V 0 H 0 Z" />
+			</clipPath>
+		</defs>
+    <g transform="matrix(1.3333333,0,0,-1.3333333,0,3333.3333)" id="g10">
+			<g id="g12">
+				<g clip-path="url(#clipPath18)" id="g14">
+					<g transform="translate(1486.1511,2242.6453)" id="g20">
+						<path id="path22" style="fill:#2b3f56;fill-opacity:1;fill-rule:nonzero;stroke:none" d="m 0,0 c 16.533,10.846 33.211,21.453 50.104,31.699 78.972,-48.281 153.985,-102.704 227.269,-159.144 148.61,-115.422 287.884,-243.01 414.393,-382.333 111.39,-122.861 212.751,-255.152 298.898,-396.971 52.744,-87.322 100.544,-177.884 139.514,-272.214 -11.638,-3.551 -23.108,-7.655 -34.362,-12.286 l -0.24,0.288 c -11.135,12.982 -24.141,24.212 -34.915,37.506 -22.557,23.013 -45.425,45.737 -68.03,68.678 -19.725,20.253 -40.601,39.45 -58.958,60.974 -36.355,36.451 -72.517,73.093 -108.944,109.471 -22.628,26.013 -48.064,49.385 -71.965,74.197 -19.029,19.485 -38.706,38.346 -57.519,57.999 -12.166,14.998 -26.684,27.716 -39.93,41.658 -27.668,27.524 -54.903,55.479 -82.571,82.979 -23.924,27.956 -51.664,52.264 -76.692,79.164 -4.68,4.487 -8.855,10.774 -15.886,11.326 -22.34,34.027 -58.311,57.327 -97.377,67.502 -104.312,99.153 -215.487,191.202 -332.661,274.782 -117.942,-83.94 -229.476,-176.781 -334.484,-276.39 -26.684,-0.024 -53.368,0.024 -80.076,-0.024 0.024,-26.564 0.048,-53.104 0,-79.668 -72.229,-73.021 -139.491,-150.937 -202.385,-232.092 -63.758,-82.619 -121.973,-169.51 -173.541,-260.264 131.932,-69.061 257.864,-149.521 375.926,-240.275 0.096,-26.444 -0.12,-52.888 0.096,-79.332 l 0.744,-0.984 c 20.109,-24.14 43.409,-45.233 65.126,-67.861 15.118,-15.382 30.571,-30.404 45.569,-45.881 17.565,-20.733 37.698,-39.042 56.607,-58.503 19.917,-20.781 41.25,-40.218 59.967,-62.151 29.156,-29.299 58.167,-58.815 87.515,-87.922 29.155,-33.043 61.502,-63.111 92.169,-94.738 13.726,-12.67 25.124,-27.571 38.634,-40.457 25.029,-25.365 50.129,-50.657 75.325,-75.853 -37.914,-51.208 -73.741,-103.952 -107.192,-158.183 -167.83,273.317 -397.235,507.305 -662.37,687.158 -81.875,55.335 -167.23,105.584 -255.681,149.641 -52.815,26.276 -106.831,50.248 -162.239,70.381 99.393,233.628 242.795,446.715 410.289,636.79 93.562,106.088 194.634,205.433 301.466,298.13 C -217.335,-155.808 -111.439,-73.789 0,0" />
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+                    <g transform="translate(1201.7948,1741.5303)" id="g24">
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+					</g>
+                    <g transform="translate(919.3342,1429.7462)" id="g28">
+						<path id="path30" style="fill:#5693ce;fill-opacity:1;fill-rule:nonzero;stroke:none" d="m 0,0 c 62.894,81.156 130.156,159.072 202.385,232.092 0.048,-244.21 0.024,-488.421 0,-732.631 C 84.323,-409.785 -41.61,-329.325 -173.541,-260.264 -121.973,-169.51 -63.758,-82.619 0,0" />
+					</g>
+                    <g transform="translate(1649.134,1700.6166)" id="g32">
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+					</g>
+                    <g transform="translate(1262.7214,1613.126)" id="g36">
+						<path id="path38" style="fill:#feeeef;fill-opacity:1;fill-rule:nonzero;stroke:none" d="m 0,0 v -301.13 c 23.204,0.024 46.409,-0.048 69.613,0.024 18.525,0.288 38.202,6.575 50.153,21.429 12.43,17.277 13.917,39.522 14.613,60.111 0.024,43.985 -0.048,87.994 0.024,131.979 -0.48,23.637 -0.983,50.369 -17.277,69.23 C 104.864,-5.711 86.867,-0.24 69.589,0 46.385,0.048 23.204,0.024 0,0 m -141.002,128.38 c 26.708,0.048 53.392,0 80.075,0.024 H 55.24 c 35.346,-0.12 71.389,-2.471 104.815,-14.925 30.668,-10.823 57.592,-31.148 76.621,-57.496 26.852,-39.09 36.69,-87.202 38.058,-133.947 0.024,-48.833 0.096,-97.689 -0.024,-146.521 -1.728,-47.993 -11.974,-97.953 -41.514,-136.971 -22.748,-30.644 -57.495,-50.801 -94.281,-59.583 -45.377,-11.878 -92.578,-6.791 -138.891,-7.847 -0.072,-111.799 0,-223.574 -0.024,-335.373 -13.942,0 -27.86,0.024 -41.778,-0.024 -32.802,0.072 -65.605,0 -98.384,0.048 l -0.744,0.984 c -0.216,26.444 0,52.888 -0.096,79.332 0.024,244.211 0.048,488.421 0,732.632 0.048,26.563 0.024,53.103 0,79.667" />
+					</g>
+                    <g transform="translate(1966.3174,1675.6364)" id="g40">
+						<path id="path42" style="fill:#2a3746;fill-opacity:1;fill-rule:nonzero;stroke:none" d="m 0,0 c 7.031,-0.552 11.206,-6.839 15.885,-11.326 25.029,-26.9 52.768,-51.208 76.693,-79.164 27.667,-27.5 54.903,-55.456 82.571,-82.979 13.246,-13.942 27.764,-26.66 39.93,-41.658 18.813,-19.653 38.49,-38.514 57.519,-57.999 23.9,-24.812 49.337,-48.185 71.965,-74.197 36.427,-36.378 72.589,-73.02 108.943,-109.471 18.358,-21.524 39.234,-40.722 58.959,-60.974 22.605,-22.941 45.473,-45.665 68.03,-68.678 10.774,-13.294 23.78,-24.524 34.914,-37.506 -103.904,-41.97 -203.488,-94.114 -298.922,-152.761 -246.994,-152.28 -466.224,-350.298 -639.333,-583.398 -25.197,25.196 -50.297,50.488 -75.325,75.852 -13.51,12.886 -24.908,27.788 -38.634,40.458 -30.667,31.627 -63.014,61.695 -92.17,94.738 -29.347,29.107 -58.359,58.623 -87.514,87.922 -18.717,21.933 -40.05,41.37 -59.967,62.151 -18.909,19.461 -39.042,37.77 -56.607,58.503 -14.998,15.477 -30.452,30.499 -45.569,45.88 -21.717,22.629 -45.017,43.722 -65.126,67.862 32.779,-0.048 65.582,0.024 98.384,-0.048 114.391,-98.097 220.407,-205.984 315.384,-322.99 92.914,114.318 196.242,220.022 307.753,316.271 30.955,4.919 61.526,15.646 86.65,34.771 27.212,20.325 46.745,49.672 58.335,81.371 107.312,77.988 219.327,149.929 337.509,210.376 -35.299,64.67 -75.829,126.437 -118.254,186.643 C 176.253,-228.037 104.24,-140.115 26.42,-57.687 20.181,-37.41 11.878,-17.661 0,0" />
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+					</g>
+                    <g transform="translate(1748.0469,1601.6797)" id="g48">
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+					</g>
+                    <g transform="translate(1262.7214,1613.126)" id="g52">
+						<path id="path54" style="fill:#3378bc;fill-opacity:1;fill-rule:nonzero;stroke:none" d="m 0,0 c 23.204,0.024 46.385,0.048 69.589,0 17.278,-0.24 35.275,-5.711 47.537,-18.357 16.294,-18.861 16.797,-45.593 17.277,-69.23 -0.072,-43.985 0,-87.994 -0.024,-131.979 -0.696,-20.589 -2.183,-42.834 -14.613,-60.111 -11.951,-14.854 -31.628,-21.141 -50.153,-21.429 -23.204,-0.072 -46.409,0 -69.613,-0.024 z" />
+					</g>
+				</g>
+			</g>
+		</g>
+	</svg>

Bukkit/build.gradle.kts

@@ -83,7 +83,7 @@ tasks.named<ShadowJar>("shadowJar") {
     relocate("org.jetbrains", "com.plotsquared.core.annotations")
     relocate("org.intellij.lang", "com.plotsquared.core.intellij.annotations")
     relocate("javax.annotation", "com.plotsquared.core.annotation")
-    relocate("com.google.code.findbugs", "com.plotsquared.core.findbugs")
+    relocate("com.github.spotbugs", "com.plotsquared.core.spotbugs")
     relocate("javax.inject", "com.plotsquared.core.annotation.inject")
 
     // Get rid of all the libs which are 100% unused.

Bukkit/src/main/java/com/plotsquared/bukkit/BukkitPlatform.java

@@ -238,6 +238,16 @@ public final class BukkitPlatform extends JavaPlugin implements Listener, PlotPl
         return this.version;
     }
 
+    @Override
+    public int versionMinHeight() {
+        return serverVersion()[1] >= 18 ? -64 : 0;
+    }
+
+    @Override
+    public int versionMaxHeight() {
+        return serverVersion()[1] >= 18 ? 319 : 255;
+    }
+
     @Override
     public @NonNull String serverImplementation() {
         return Bukkit.getVersion();

Bukkit/src/main/java/com/plotsquared/bukkit/generator/BlockStatePopulator.java

@@ -65,7 +65,10 @@ final class BlockStatePopulator extends BlockPopulator {
             return;
         }
         final ChunkWrapper wrap = new ChunkWrapper(area.getWorldName(), source.getX(), source.getZ());
-        final ScopedQueueCoordinator chunk = this.queue.getForChunk(wrap.x, wrap.z);
+        final ScopedQueueCoordinator chunk = this.queue.getForChunk(wrap.x, wrap.z,
+                com.plotsquared.bukkit.util.BukkitWorld.getMinWorldHeight(world),
+                com.plotsquared.bukkit.util.BukkitWorld.getMaxWorldHeight(world) - 1
+        );
         if (this.plotGenerator.populateChunk(chunk, area)) {
             this.queue.enqueue();
         }

Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitAugmentedGenerator.java

@@ -25,7 +25,11 @@
  */
 package com.plotsquared.bukkit.generator;
 
+import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.generator.AugmentedUtils;
+import com.plotsquared.core.queue.QueueCoordinator;
+import com.sk89q.worldedit.bukkit.BukkitAdapter;
+import com.sk89q.worldedit.util.SideEffectSet;
 import org.bukkit.Chunk;
 import org.bukkit.World;
 import org.bukkit.generator.BlockPopulator;
@@ -52,7 +56,14 @@ public class BukkitAugmentedGenerator extends BlockPopulator {
 
     @Override
     public void populate(@NonNull World world, @NonNull Random random, @NonNull Chunk source) {
-        AugmentedUtils.generate(source, world.getName(), source.getX(), source.getZ(), null);
+        QueueCoordinator queue = PlotSquared.platform().globalBlockQueue().getNewQueue(BukkitAdapter.adapt(world));
+        // The chunk is already loaded and we do not want to load the chunk in "fully" by using any PaperLib methods.
+        queue.setForceSync(true);
+        queue.setSideEffectSet(SideEffectSet.none());
+        queue.setBiomesEnabled(false);
+        queue.setChunkObject(source);
+        AugmentedUtils.generateChunk(world.getName(), source.getX(), source.getZ(), queue);
+        queue.enqueue();
     }
 
 }

Bukkit/src/main/java/com/plotsquared/bukkit/generator/BukkitPlotGenerator.java

@@ -27,6 +27,7 @@ package com.plotsquared.bukkit.generator;
 
 import com.plotsquared.bukkit.queue.GenChunk;
 import com.plotsquared.bukkit.util.BukkitUtil;
+import com.plotsquared.bukkit.util.BukkitWorld;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.generator.GeneratorWrapper;
 import com.plotsquared.core.generator.IndependentPlotGenerator;
@@ -159,12 +160,14 @@ public class BukkitPlotGenerator extends ChunkGenerator
             @NonNull BiomeGrid biome
     ) {
 
-        GenChunk result = new GenChunk();
+        int minY = BukkitWorld.getMinWorldHeight(world);
+        int maxY = BukkitWorld.getMaxWorldHeight(world);
+        GenChunk result = new GenChunk(minY, maxY);
         if (this.getPlotGenerator() instanceof SingleWorldGenerator) {
             if (result.getChunkData() != null) {
                 for (int chunkX = 0; chunkX < 16; chunkX++) {
                     for (int chunkZ = 0; chunkZ < 16; chunkZ++) {
-                        for (int y = 0; y < world.getMaxHeight(); y++) {
+                        for (int y = minY; y < maxY; y++) {
                             biome.setBiome(chunkX, y, chunkZ, Biome.PLAINS);
 
                         }

Bukkit/src/main/java/com/plotsquared/bukkit/generator/DelegatePlotGenerator.java

@@ -80,7 +80,8 @@ final class DelegatePlotGenerator extends IndependentPlotGenerator {
                     result.setBiome(x, z, BukkitAdapter.adapt(biome));
                 }
 
-                //do not annotate with Override until we discontinue support for 1.4.4
+                //do not annotate with Override until we discontinue support for 1.4.4 (we no longer support 1.4.4)
+                @Override
                 public void setBiome(int x, int y, int z, @NonNull Biome biome) {
                     result.setBiome(x, z, BukkitAdapter.adapt(biome));
 

Bukkit/src/main/java/com/plotsquared/bukkit/listener/BlockEventListener.java

@@ -354,7 +354,8 @@ public class BlockEventListener implements Listener {
         Plot plot = area.getPlot(location);
         if (plot != null) {
             BukkitPlayer plotPlayer = BukkitUtil.adapt(player);
-            if (event.getBlock().getY() == 0) {
+            // == rather than <= as we only care about the "ground level" not being destroyed
+            if (event.getBlock().getY() == area.getMinGenHeight()) {
                 if (!Permissions
                         .hasPermission(plotPlayer, Permission.PERMISSION_ADMIN_DESTROY_GROUNDLEVEL)) {
                     plotPlayer.sendMessage(
@@ -649,7 +650,8 @@ public class BlockEventListener implements Listener {
                     event.getBlock().breakNaturally();
                 }
             }
-            if (location.getY() == 0) {
+            // == rather than <= as we only care about the "ground level" not being destroyed
+            if (location.getY() == area.getMinGenHeight()) {
                 event.setCancelled(true);
                 return;
             }

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PaperListener.java

@@ -44,6 +44,7 @@ import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.flag.implementations.DoneFlag;
+import com.plotsquared.core.plot.flag.implementations.ProjectilesFlag;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.Permissions;
 import net.kyori.adventure.text.minimessage.Template;
@@ -352,13 +353,15 @@ public class PaperListener implements Listener {
                 event.setCancelled(true);
             }
         } else if (!plot.isAdded(pp.getUUID())) {
-            if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)) {
-                pp.sendMessage(
-                        TranslatableCaption.of("permission.no_permission_event"),
-                        Template.of("node", String.valueOf(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER))
-                );
-                entity.remove();
-                event.setCancelled(true);
+            if (!plot.getFlag(ProjectilesFlag.class)) {
+                if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)) {
+                    pp.sendMessage(
+                            TranslatableCaption.of("permission.no_permission_event"),
+                            Template.of("node", String.valueOf(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER))
+                    );
+                    entity.remove();
+                    event.setCancelled(true);
+                }
             }
         }
     }

Bukkit/src/main/java/com/plotsquared/bukkit/listener/PlayerEventListener.java

@@ -76,7 +76,6 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.PremiumVerification;
-import com.plotsquared.core.util.RegExUtil;
 import com.plotsquared.core.util.entity.EntityCategories;
 import com.plotsquared.core.util.task.TaskManager;
 import com.plotsquared.core.util.task.TaskTime;
@@ -223,10 +222,9 @@ public class PlayerEventListener extends PlotListener implements Listener {
         }
     }
 
-    @SuppressWarnings("StringSplitter")
     @EventHandler(ignoreCancelled = true, priority = EventPriority.HIGHEST)
     public void playerCommand(PlayerCommandPreprocessEvent event) {
-        String msg = event.getMessage().toLowerCase().replaceAll("/", "").trim();
+        String msg = event.getMessage().replace("/", "").toLowerCase(Locale.ROOT).trim();
         if (msg.isEmpty()) {
             return;
         }
@@ -240,11 +238,9 @@ public class PlayerEventListener extends PlotListener implements Listener {
         String[] parts = msg.split(" ");
         Plot plot = plotPlayer.getCurrentPlot();
         // Check WorldEdit
-        switch (parts[0].toLowerCase()) {
+        switch (parts[0]) {
             case "up":
-            case "/up":
             case "worldedit:up":
-            case "worldedit:/up":
                 if (plot == null || (!plot.isAdded(plotPlayer.getUUID()) && !Permissions
                         .hasPermission(plotPlayer, Permission.PERMISSION_ADMIN_BUILD_OTHER, true))) {
                     event.setCancelled(true);
@@ -258,63 +254,67 @@ public class PlayerEventListener extends PlotListener implements Listener {
         List<String> blockedCommands = plot != null ?
                 plot.getFlag(BlockedCmdsFlag.class) :
                 area.getFlag(BlockedCmdsFlag.class);
-        if (!blockedCommands.isEmpty() && !Permissions
-                .hasPermission(plotPlayer, Permission.PERMISSION_ADMIN_INTERACT_BLOCKED_CMDS)) {
-            String part = parts[0];
-            if (parts[0].contains(":")) {
-                part = parts[0].split(":")[1];
-                msg = msg.replace(parts[0].split(":")[0] + ':', "");
-            }
-            String s1 = part;
-            List<String> aliases = new ArrayList<>();
-            for (HelpTopic cmdLabel : Bukkit.getServer().getHelpMap().getHelpTopics()) {
-                if (part.equals(cmdLabel.getName())) {
-                    break;
-                }
-                String label = cmdLabel.getName().replaceFirst("/", "");
-                if (aliases.contains(label)) {
-                    continue;
-                }
-                PluginCommand p;
-                if ((p = Bukkit.getPluginCommand(label)) != null) {
-                    for (String a : p.getAliases()) {
-                        if (aliases.contains(a)) {
-                            continue;
-                        }
-                        aliases.add(a);
-                        a = a.replaceFirst("/", "");
-                        if (!a.equals(label) && a.equals(part)) {
-                            part = label;
-                            break;
-                        }
-                    }
-                }
-            }
-            if (!s1.equals(part)) {
-                msg = msg.replace(s1, part);
-            }
-            for (String s : blockedCommands) {
-                Pattern pattern;
-                if (!RegExUtil.compiledPatterns.containsKey(s)) {
-                    RegExUtil.compiledPatterns.put(s, pattern = Pattern.compile(s));
+        if (blockedCommands.isEmpty()) {
+            return;
+        }
+        if (Permissions.hasPermission(plotPlayer, Permission.PERMISSION_ADMIN_INTERACT_BLOCKED_CMDS)) {
+            return;
+        }
+        // When using namespaced commands, we're not interested in the namespace
+        String part = parts[0];
+        if (part.contains(":")) {
+            String[] namespaced = part.split(":");
+            part = namespaced[1];
+            msg = msg.substring(namespaced[0].length() + 1);
+        }
+        msg = replaceAliases(msg, part);
+        for (String blocked : blockedCommands) {
+            if (blocked.equalsIgnoreCase(msg)) {
+                String perm;
+                if (plot != null && plot.isAdded(plotPlayer.getUUID())) {
+                    perm = "plots.admin.command.blocked-cmds.shared";
                 } else {
-                    pattern = RegExUtil.compiledPatterns.get(s);
+                    perm = "plots.admin.command.blocked-cmds.road";
                 }
-                if (pattern.matcher(msg).matches()) {
-                    String perm;
-                    if (plot != null && plot.isAdded(plotPlayer.getUUID())) {
-                        perm = "plots.admin.command.blocked-cmds.shared";
-                    } else {
-                        perm = "plots.admin.command.blocked-cmds.road";
+                if (!Permissions.hasPermission(plotPlayer, perm)) {
+                    plotPlayer.sendMessage(TranslatableCaption.of("blockedcmds.command_blocked"));
+                    event.setCancelled(true);
+                }
+                return;
+            }
+        }
+    }
+
+    private String replaceAliases(String msg, String part) {
+        String s1 = part;
+        Set<String> aliases = new HashSet<>();
+        for (HelpTopic cmdLabel : Bukkit.getServer().getHelpMap().getHelpTopics()) {
+            if (part.equals(cmdLabel.getName())) {
+                break;
+            }
+            String label = cmdLabel.getName().replaceFirst("/", "");
+            if (aliases.contains(label)) {
+                continue;
+            }
+            PluginCommand p = Bukkit.getPluginCommand(label);
+            if (p != null) {
+                for (String a : p.getAliases()) {
+                    if (aliases.contains(a)) {
+                        continue;
                     }
-                    if (!Permissions.hasPermission(plotPlayer, perm)) {
-                        plotPlayer.sendMessage(TranslatableCaption.of("blockedcmds.command_blocked"));
-                        event.setCancelled(true);
+                    aliases.add(a);
+                    a = a.replaceFirst("/", "");
+                    if (!a.equals(label) && a.equals(part)) {
+                        part = label;
+                        break;
                     }
-                    return;
                 }
             }
         }
+        if (!s1.equals(part)) {
+            msg = msg.replace(s1, part);
+        }
+        return msg;
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)

Bukkit/src/main/java/com/plotsquared/bukkit/listener/ProjectileEventListener.java

@@ -35,6 +35,7 @@ import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.PlotHandler;
+import com.plotsquared.core.plot.flag.implementations.ProjectilesFlag;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.Permissions;
 import net.kyori.adventure.text.minimessage.Template;
@@ -128,13 +129,15 @@ public class ProjectileEventListener implements Listener {
                 event.setCancelled(true);
             }
         } else if (!plot.isAdded(pp.getUUID())) {
-            if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)) {
-                pp.sendMessage(
-                        TranslatableCaption.of("permission.no_permission_event"),
-                        Template.of("node", String.valueOf(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER))
-                );
-                entity.remove();
-                event.setCancelled(true);
+            if (!plot.getFlag(ProjectilesFlag.class)) {
+                if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)) {
+                    pp.sendMessage(
+                            TranslatableCaption.of("permission.no_permission_event"),
+                            Template.of("node", String.valueOf(Permission.PERMISSION_ADMIN_PROJECTILE_OTHER))
+                    );
+                    entity.remove();
+                    event.setCancelled(true);
+                }
             }
         }
     }
@@ -162,7 +165,7 @@ public class ProjectileEventListener implements Listener {
                 return;
             }
             if (plot.isAdded(pp.getUUID()) || Permissions
-                    .hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_OTHER)) {
+                    .hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_OTHER) || plot.getFlag(ProjectilesFlag.class)) {
                 return;
             }
             entity.remove();

Bukkit/src/main/java/com/plotsquared/bukkit/listener/SingleWorldListener.java

@@ -46,7 +46,7 @@ import static com.plotsquared.core.util.ReflectionUtils.getRefClass;
 public class SingleWorldListener implements Listener {
 
     private final Method methodGetHandleChunk;
-    private Field shouldSave;
+    private Field shouldSave = null;
 
     public SingleWorldListener() throws Exception {
         ReflectionUtils.RefClass classCraftChunk = getRefClass("{cb}.CraftChunk");
@@ -59,9 +59,12 @@ public class SingleWorldListener implements Listener {
                 } else {
                     this.shouldSave = classChunk.getField("s").getRealField();
                 }
-            } else {
+            } else if (PlotSquared.platform().serverVersion()[1] == 17) {
                 ReflectionUtils.RefClass classChunk = getRefClass("net.minecraft.world.level.chunk.Chunk");
                 this.shouldSave = classChunk.getField("r").getRealField();
+            } else if (PlotSquared.platform().serverVersion()[1] == 18) {
+                ReflectionUtils.RefClass classChunk = getRefClass("net.minecraft.world.level.chunk.IChunkAccess");
+                this.shouldSave = classChunk.getField("b").getRealField();
             }
         } catch (NoSuchFieldException e) {
             e.printStackTrace();

Bukkit/src/main/java/com/plotsquared/bukkit/queue/BukkitChunkCoordinator.java

@@ -74,11 +74,13 @@ public final class BukkitChunkCoordinator extends ChunkCoordinator {
     private final Consumer<Throwable> throwableConsumer;
     private final boolean unloadAfter;
     private final int totalSize;
-
     private final AtomicInteger expectedSize;
+    private final AtomicInteger loadingChunks = new AtomicInteger();
+    private final boolean forceSync;
+
     private int batchSize;
     private PlotSquaredTask task;
-    private boolean shouldCancel;
+    private volatile boolean shouldCancel;
     private boolean finished;
 
     @Inject
@@ -91,7 +93,8 @@ public final class BukkitChunkCoordinator extends ChunkCoordinator {
             @Assisted final @NonNull Runnable whenDone,
             @Assisted final @NonNull Consumer<Throwable> throwableConsumer,
             @Assisted final boolean unloadAfter,
-            @Assisted final @NonNull Collection<ProgressSubscriber> progressSubscribers
+            @Assisted final @NonNull Collection<ProgressSubscriber> progressSubscribers,
+            @Assisted final boolean forceSync
     ) {
         this.requestedChunks = new LinkedBlockingQueue<>(requestedChunks);
         this.availableChunks = new LinkedBlockingQueue<>();
@@ -106,14 +109,27 @@ public final class BukkitChunkCoordinator extends ChunkCoordinator {
         this.plugin = JavaPlugin.getPlugin(BukkitPlatform.class);
         this.bukkitWorld = Bukkit.getWorld(world.getName());
         this.progressSubscribers.addAll(progressSubscribers);
+        this.forceSync = forceSync;
     }
 
     @Override
     public void start() {
-        // Request initial batch
-        this.requestBatch();
-        // Wait until next tick to give the chunks a chance to be loaded
-        TaskManager.runTaskLater(() -> task = TaskManager.runTaskRepeat(this, TaskTime.ticks(1)), TaskTime.ticks(1));
+        if (!forceSync) {
+            // Request initial batch
+            this.requestBatch();
+            // Wait until next tick to give the chunks a chance to be loaded
+            TaskManager.runTaskLater(() -> task = TaskManager.runTaskRepeat(this, TaskTime.ticks(1)), TaskTime.ticks(1));
+        } else {
+            try {
+                while (!shouldCancel && !requestedChunks.isEmpty()) {
+                    chunkConsumer.accept(requestedChunks.poll());
+                }
+            } catch (Throwable t) {
+                throwableConsumer.accept(t);
+            } finally {
+                finish();
+            }
+        }
     }
 
     @Override
@@ -130,7 +146,9 @@ public final class BukkitChunkCoordinator extends ChunkCoordinator {
             for (final ProgressSubscriber subscriber : this.progressSubscribers) {
                 subscriber.notifyEnd();
             }
-            task.cancel();
+            if (task != null) {
+                task.cancel();
+            }
             finished = true;
         }
     }
@@ -150,6 +168,13 @@ public final class BukkitChunkCoordinator extends ChunkCoordinator {
 
         Chunk chunk = this.availableChunks.poll();
         if (chunk == null) {
+            if (this.availableChunks.isEmpty()) {
+                if (this.requestedChunks.isEmpty() && loadingChunks.get() == 0) {
+                    finish();
+                } else {
+                    requestBatch();
+                }
+            }
             return;
         }
         long[] iterationTime = new long[2];
@@ -197,9 +222,11 @@ public final class BukkitChunkCoordinator extends ChunkCoordinator {
         BlockVector2 chunk;
         for (int i = 0; i < this.batchSize && (chunk = this.requestedChunks.poll()) != null; i++) {
             // This required PaperLib to be bumped to version 1.0.4 to mark the request as urgent
+            loadingChunks.incrementAndGet();
             PaperLib
                     .getChunkAtAsync(this.bukkitWorld, chunk.getX(), chunk.getZ(), true, true)
                     .whenComplete((chunkObject, throwable) -> {
+                        loadingChunks.decrementAndGet();
                         if (throwable != null) {
                             throwable.printStackTrace();
                             // We want one less because this couldn't be processed

Bukkit/src/main/java/com/plotsquared/bukkit/queue/BukkitQueueCoordinator.java

@@ -62,10 +62,27 @@ import java.util.function.Consumer;
 
 public class BukkitQueueCoordinator extends BasicQueueCoordinator {
 
-    private final SideEffectSet noSideEffectSet;
-    private final SideEffectSet lightingSideEffectSet;
-    private final SideEffectSet edgeSideEffectSet;
-    private final SideEffectSet edgeLightingSideEffectSet;
+    private static final SideEffectSet NO_SIDE_EFFECT_SET;
+    private static final SideEffectSet EDGE_SIDE_EFFECT_SET;
+    private static final SideEffectSet LIGHTING_SIDE_EFFECT_SET;
+    private static final SideEffectSet EDGE_LIGHTING_SIDE_EFFECT_SET;
+
+    static {
+        NO_SIDE_EFFECT_SET = SideEffectSet.none().with(SideEffect.LIGHTING, SideEffect.State.OFF).with(
+                SideEffect.NEIGHBORS,
+                SideEffect.State.OFF
+        );
+        EDGE_SIDE_EFFECT_SET = SideEffectSet.none().with(SideEffect.UPDATE, SideEffect.State.ON).with(
+                SideEffect.NEIGHBORS,
+                SideEffect.State.ON
+        );
+        LIGHTING_SIDE_EFFECT_SET = SideEffectSet.none().with(SideEffect.NEIGHBORS, SideEffect.State.OFF);
+        EDGE_LIGHTING_SIDE_EFFECT_SET = SideEffectSet.none().with(SideEffect.UPDATE, SideEffect.State.ON).with(
+                SideEffect.NEIGHBORS,
+                SideEffect.State.ON
+        );
+    }
+
     private org.bukkit.World bukkitWorld;
     @Inject
     private ChunkCoordinatorBuilderFactory chunkCoordinatorBuilderFactory;
@@ -76,19 +93,6 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
     @Inject
     public BukkitQueueCoordinator(@NonNull World world) {
         super(world);
-        noSideEffectSet = SideEffectSet.none().with(SideEffect.LIGHTING, SideEffect.State.OFF).with(
-                SideEffect.NEIGHBORS,
-                SideEffect.State.OFF
-        );
-        lightingSideEffectSet = SideEffectSet.none().with(SideEffect.NEIGHBORS, SideEffect.State.OFF);
-        edgeSideEffectSet = noSideEffectSet.with(SideEffect.UPDATE, SideEffect.State.ON).with(
-                SideEffect.NEIGHBORS,
-                SideEffect.State.ON
-        );
-        edgeLightingSideEffectSet = noSideEffectSet.with(SideEffect.UPDATE, SideEffect.State.ON).with(
-                SideEffect.NEIGHBORS,
-                SideEffect.State.ON
-        );
     }
 
     @Override
@@ -111,8 +115,8 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
     public boolean enqueue() {
         final Clipboard regenClipboard;
         if (isRegen()) {
-            BlockVector3 start = BlockVector3.at(getRegenStart()[0] << 4, 0, getRegenStart()[1] << 4);
-            BlockVector3 end = BlockVector3.at((getRegenEnd()[0] << 4) + 15, 255, (getRegenEnd()[1] << 4) + 15);
+            BlockVector3 start = BlockVector3.at(getRegenStart()[0] << 4, getMinY(), getRegenStart()[1] << 4);
+            BlockVector3 end = BlockVector3.at((getRegenEnd()[0] << 4) + 15, getMaxY(), (getRegenEnd()[1] << 4) + 15);
             Region region = new CuboidRegion(start, end);
             regenClipboard = new BlockArrayClipboard(region);
             regenClipboard.setOrigin(start);
@@ -134,7 +138,7 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
                 int sx = blockVector2.getX() << 4;
                 int sz = blockVector2.getZ() << 4;
                 if (isRegenChunk) {
-                    for (int layer = 0; layer < 16; layer++) {
+                    for (int layer = getMinLayer(); layer <= getMaxLayer(); layer++) {
                         for (int y = 0; y < 16; y++) {
                             for (int x = 0; x < 16; x++) {
                                 for (int z = 0; z < 16; z++) {
@@ -170,7 +174,7 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
                             int lx = ChunkUtil.getX(j);
                             int lz = ChunkUtil.getZ(j);
                             int x = sx + lx;
-                            int y = ChunkUtil.getY(layer, j);
+                            int y = ChunkUtil.getY(layer + localChunk.getMinSection(), j);
                             int z = sz + lz;
                             boolean edge = Settings.QUEUE.UPDATE_EDGES && isEdge(y >> 4, lx, y & 15, lz, blockVector2,
                                     localChunk
@@ -179,7 +183,7 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
                         }
                     }
                 }
-                for (int layer = 0; layer < localChunk.getBaseblocks().length; layer++) {
+                for (int layer = 0; layer < localChunk.getBiomes().length; layer++) {
                     BiomeType[] biomesLayer = localChunk.getBiomes()[layer];
                     if (biomesLayer == null) {
                         continue;
@@ -201,7 +205,7 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
                     localChunk.getTiles().forEach((blockVector3, tag) -> {
                         try {
                             BaseBlock block = getWorld().getBlock(blockVector3).toBaseBlock(tag);
-                            getWorld().setBlock(blockVector3, block, noSideEffectSet);
+                            getWorld().setBlock(blockVector3, block, getSideEffectSet(SideEffectState.NONE));
                         } catch (WorldEditException ignored) {
                             StateWrapper sw = new StateWrapper(tag);
                             sw.restoreTag(getWorld().getName(), blockVector3.getX(), blockVector3.getY(), blockVector3.getZ());
@@ -258,9 +262,9 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
             }
             SideEffectSet sideEffectSet;
             if (lighting) {
-                sideEffectSet = edge ? edgeLightingSideEffectSet : lightingSideEffectSet;
+                sideEffectSet = getSideEffectSet(edge ? SideEffectState.EDGE_LIGHTING : SideEffectState.LIGHTING);
             } else {
-                sideEffectSet = edge ? edgeSideEffectSet : noSideEffectSet;
+                sideEffectSet = getSideEffectSet(edge ? SideEffectState.EDGE : SideEffectState.NONE);
             }
             getWorld().setBlock(loc, block, sideEffectSet);
         } catch (WorldEditException ignored) {
@@ -295,47 +299,48 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
     }
 
     private boolean isEdge(int layer, int x, int y, int z, BlockVector2 blockVector2, LocalChunk localChunk) {
-        if (layer == 0 || layer == localChunk.getBaseblocks().length - 1) {
+        int layerIndex = (layer - localChunk.getMinSection());
+        if (layer == localChunk.getMinSection() || layerIndex == localChunk.getBaseblocks().length - 1) {
             return false;
         }
         if (x == 0) {
             LocalChunk localChunkX = getBlockChunks().get(blockVector2.withX(blockVector2.getX() - 1));
-            if (localChunkX == null || localChunkX.getBaseblocks()[layer] == null ||
-                    localChunkX.getBaseblocks()[layer][ChunkUtil.getJ(15, y, z)] != null) {
+            if (localChunkX == null || localChunkX.getBaseblocks()[layerIndex] == null ||
+                    localChunkX.getBaseblocks()[layerIndex][ChunkUtil.getJ(15, y, z)] != null) {
                 return true;
             }
         } else if (x == 15) {
             LocalChunk localChunkX = getBlockChunks().get(blockVector2.withX(blockVector2.getX() + 1));
-            if (localChunkX == null || localChunkX.getBaseblocks()[layer] == null ||
-                    localChunkX.getBaseblocks()[layer][ChunkUtil.getJ(0, y, z)] != null) {
+            if (localChunkX == null || localChunkX.getBaseblocks()[layerIndex] == null ||
+                    localChunkX.getBaseblocks()[layerIndex][ChunkUtil.getJ(0, y, z)] != null) {
                 return true;
             }
         }
         if (z == 0) {
             LocalChunk localChunkZ = getBlockChunks().get(blockVector2.withZ(blockVector2.getZ() - 1));
-            if (localChunkZ == null || localChunkZ.getBaseblocks()[layer] == null ||
-                    localChunkZ.getBaseblocks()[layer][ChunkUtil.getJ(x, y, 15)] != null) {
+            if (localChunkZ == null || localChunkZ.getBaseblocks()[layerIndex] == null ||
+                    localChunkZ.getBaseblocks()[layerIndex][ChunkUtil.getJ(x, y, 15)] != null) {
                 return true;
             }
         } else if (z == 15) {
             LocalChunk localChunkZ = getBlockChunks().get(blockVector2.withZ(blockVector2.getZ() + 1));
-            if (localChunkZ == null || localChunkZ.getBaseblocks()[layer] == null ||
-                    localChunkZ.getBaseblocks()[layer][ChunkUtil.getJ(x, y, 0)] != null) {
+            if (localChunkZ == null || localChunkZ.getBaseblocks()[layerIndex] == null ||
+                    localChunkZ.getBaseblocks()[layerIndex][ChunkUtil.getJ(x, y, 0)] != null) {
                 return true;
             }
         }
         if (y == 0) {
-            if (localChunk.getBaseblocks()[layer - 1] == null ||
-                    localChunk.getBaseblocks()[layer][ChunkUtil.getJ(x, 15, z)] != null) {
+            if (localChunk.getBaseblocks()[layerIndex - 1] == null ||
+                    localChunk.getBaseblocks()[layerIndex][ChunkUtil.getJ(x, 15, z)] != null) {
                 return true;
             }
         } else if (y == 15) {
-            if (localChunk.getBaseblocks()[layer + 1] == null ||
-                    localChunk.getBaseblocks()[layer][ChunkUtil.getJ(x, 0, z)] != null) {
+            if (localChunk.getBaseblocks()[layerIndex + 1] == null ||
+                    localChunk.getBaseblocks()[layerIndex][ChunkUtil.getJ(x, 0, z)] != null) {
                 return true;
             }
         }
-        BaseBlock[] baseBlocks = localChunk.getBaseblocks()[layer];
+        BaseBlock[] baseBlocks = localChunk.getBaseblocks()[layerIndex];
         if (x > 0 && baseBlocks[ChunkUtil.getJ(x - 1, y, z)] == null) {
             return true;
         }
@@ -374,4 +379,23 @@ public class BukkitQueueCoordinator extends BasicQueueCoordinator {
         return false;
     }
 
+    private SideEffectSet getSideEffectSet(SideEffectState state) {
+        if (getSideEffectSet() != null) {
+            return getSideEffectSet();
+        }
+        return switch (state) {
+            case NONE -> NO_SIDE_EFFECT_SET;
+            case EDGE -> EDGE_SIDE_EFFECT_SET;
+            case LIGHTING -> LIGHTING_SIDE_EFFECT_SET;
+            case EDGE_LIGHTING -> EDGE_LIGHTING_SIDE_EFFECT_SET;
+        };
+    }
+
+    private enum SideEffectState {
+        NONE,
+        EDGE,
+        LIGHTING,
+        EDGE_LIGHTING
+    }
+
 }

Bukkit/src/main/java/com/plotsquared/bukkit/queue/GenChunk.java

@@ -31,6 +31,7 @@ import com.plotsquared.bukkit.util.BukkitUtil;
 import com.plotsquared.core.location.ChunkWrapper;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.queue.ScopedQueueCoordinator;
+import com.plotsquared.core.util.AnnotationHelper;
 import com.plotsquared.core.util.ChunkUtil;
 import com.plotsquared.core.util.PatternUtil;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
@@ -50,6 +51,7 @@ import org.checkerframework.checker.nullness.qual.Nullable;
 
 import java.util.Arrays;
 
+@AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
 public class GenChunk extends ScopedQueueCoordinator {
 
     public final Biome[] biomes;
@@ -61,8 +63,14 @@ public class GenChunk extends ScopedQueueCoordinator {
     public int chunkZ;
     private ChunkData chunkData = null;
 
-    public GenChunk() {
-        super(null, Location.at("", 0, 0, 0), Location.at("", 15, 255, 15));
+    /**
+     * @param minY minimum world Y, inclusive
+     * @param maxY maximum world Y, inclusive
+     *
+     * @since 6.6.0
+     */
+    public GenChunk(int minY, int maxY) {
+        super(null, Location.at("", 0, minY, 0), Location.at("", 15, maxY, 15));
         this.biomes = Biome.values();
     }
 
@@ -117,7 +125,7 @@ public class GenChunk extends ScopedQueueCoordinator {
             return;
         }
         Biome biome = BukkitAdapter.adapt(biomeType);
-        for (int y = 0; y < 256; y++) {
+        for (int y = getMin().getY(); y <= getMax().getY(); y++) {
             for (int x = 0; x < 16; x++) {
                 for (int z = 0; z < 16; z++) {
                     this.biomeGrid.setBiome(x, y, z, biome);
@@ -130,7 +138,7 @@ public class GenChunk extends ScopedQueueCoordinator {
     public void setCuboid(@NonNull Location pos1, @NonNull Location pos2, @NonNull BlockState block) {
         if (result != null && pos1.getX() == 0 && pos1.getZ() == 0 && pos2.getX() == 15 && pos2.getZ() == 15) {
             for (int y = pos1.getY(); y <= pos2.getY(); y++) {
-                int layer = y >> 4;
+                int layer = getLayerIndex(y);
                 BlockState[] data = result[layer];
                 if (data == null) {
                     result[layer] = data = new BlockState[4096];
@@ -164,7 +172,7 @@ public class GenChunk extends ScopedQueueCoordinator {
      */
     public boolean setBiome(int x, int z, @NonNull Biome biome) {
         if (this.biomeGrid != null) {
-            for (int y = 0; y < 256; y++) {
+            for (int y = getMin().getY(); y <= getMax().getY(); y++) {
                 this.setBiome(x, y, z, biome);
             }
             return true;
@@ -197,7 +205,7 @@ public class GenChunk extends ScopedQueueCoordinator {
     }
 
     private void storeCache(final int x, final int y, final int z, final @NonNull BlockState id) {
-        int i = y >> 4;
+        int i = getLayerIndex(y);
         BlockState[] v = this.result[i];
         if (v == null) {
             this.result[i] = v = new BlockState[4096];
@@ -219,7 +227,7 @@ public class GenChunk extends ScopedQueueCoordinator {
 
     @Override
     public @Nullable BlockState getBlock(int x, int y, int z) {
-        int i = y >> 4;
+        int i = getLayerIndex(y);
         if (result == null) {
             return BukkitBlockUtil.get(chunkData.getType(x, y, z));
         }
@@ -246,16 +254,16 @@ public class GenChunk extends ScopedQueueCoordinator {
 
     @Override
     public @NonNull Location getMax() {
-        return Location.at(getWorld().getName(), 15 + (getX() << 4), 255, 15 + (getZ() << 4));
+        return Location.at(getWorld().getName(), 15 + (getX() << 4), super.getMax().getY(), 15 + (getZ() << 4));
     }
 
     @Override
     public @NonNull Location getMin() {
-        return Location.at(getWorld().getName(), getX() << 4, 0, getZ() << 4);
+        return Location.at(getWorld().getName(), getX() << 4, super.getMin().getY(), getZ() << 4);
     }
 
     public @NonNull GenChunk clone() {
-        GenChunk toReturn = new GenChunk();
+        GenChunk toReturn = new GenChunk(getMin().getY(), getMax().getY());
         if (this.result != null) {
             for (int i = 0; i < this.result.length; i++) {
                 BlockState[] matrix = this.result[i];
@@ -269,4 +277,8 @@ public class GenChunk extends ScopedQueueCoordinator {
         return toReturn;
     }
 
+    private int getLayerIndex(int y) {
+        return (y - getMin().getY()) >> 4;
+    }
+
 }

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitRegionManager.java

@@ -40,7 +40,6 @@ import com.plotsquared.core.queue.QueueCoordinator;
 import com.plotsquared.core.queue.ScopedQueueCoordinator;
 import com.plotsquared.core.util.ChunkManager;
 import com.plotsquared.core.util.RegionManager;
-import com.plotsquared.core.util.RegionUtil;
 import com.plotsquared.core.util.WorldUtil;
 import com.plotsquared.core.util.entity.EntityCategories;
 import com.plotsquared.core.util.task.RunnableVal;
@@ -261,7 +260,7 @@ public class BukkitRegionManager extends RegionManager {
             if (checkX2 && checkZ2) {
                 map.saveRegion(world, xxt2, xxt, zzt2, zzt); //
             }
-            CuboidRegion currentPlotClear = RegionUtil.createRegion(pos1.getX(), pos2.getX(), pos1.getZ(), pos2.getZ());
+            CuboidRegion currentPlotClear = new CuboidRegion(pos1.getBlockVector3(), pos2.getBlockVector3());
             map.saveEntitiesOut(Bukkit.getWorld(world.getName()).getChunkAt(x, z), currentPlotClear);
             AugmentedUtils.bypass(
                     ignoreAugment,
@@ -276,7 +275,9 @@ public class BukkitRegionManager extends RegionManager {
                                     PlotLoc plotLoc = new PlotLoc(bx + x1, bz + z1);
                                     BaseBlock[] ids = map.allBlocks.get(plotLoc);
                                     if (ids != null) {
-                                        for (int y = 0; y < Math.min(128, ids.length); y++) {
+                                        int minY = value.getMin().getY();
+                                        for (int yIndex = 0; yIndex < ids.length; yIndex++) {
+                                            int y = yIndex + minY;
                                             BaseBlock id = ids[y];
                                             if (id != null) {
                                                 value.setBlock(x1, y, z1, id);
@@ -284,12 +285,6 @@ public class BukkitRegionManager extends RegionManager {
                                                 value.setBlock(x1, y, z1, BlockTypes.AIR.getDefaultState());
                                             }
                                         }
-                                        for (int y = Math.min(128, ids.length); y < ids.length; y++) {
-                                            BaseBlock id = ids[y];
-                                            if (id != null) {
-                                                value.setBlock(x1, y, z1, id);
-                                            }
-                                        }
                                     }
                                 }
                             }
@@ -297,7 +292,7 @@ public class BukkitRegionManager extends RegionManager {
                     }, world.getName(), chunk)
             );
             //map.restoreBlocks(worldObj, 0, 0);
-            map.restoreEntities(Bukkit.getWorld(world.getName()), 0, 0);
+            map.restoreEntities(Bukkit.getWorld(world.getName()));
         });
         regenQueue.setCompleteTask(whenDone);
         queue.setCompleteTask(regenQueue::enqueue);

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitUtil.java

@@ -44,7 +44,6 @@ import com.plotsquared.core.util.task.TaskManager;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.bukkit.BukkitWorld;
 import com.sk89q.worldedit.math.BlockVector2;
-import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BlockCategories;
 import com.sk89q.worldedit.world.block.BlockState;
@@ -61,7 +60,6 @@ import org.bukkit.Bukkit;
 import org.bukkit.Chunk;
 import org.bukkit.Material;
 import org.bukkit.World;
-import org.bukkit.block.Biome;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.Sign;
@@ -246,7 +244,9 @@ public class BukkitUtil extends WorldUtil {
             final World bukkitWorld = Objects.requireNonNull(getWorld(world));
             // Skip top and bottom block
             int air = 1;
-            for (int y = bukkitWorld.getMaxHeight() - 1; y >= 0; y--) {
+            int maxY = com.plotsquared.bukkit.util.BukkitWorld.getMaxWorldHeight(bukkitWorld);
+            int minY = com.plotsquared.bukkit.util.BukkitWorld.getMinWorldHeight(bukkitWorld);
+            for (int y = maxY - 1; y >= minY; y--) {
                 Block block = bukkitWorld.getBlockAt(x, y, z);
                 Material type = block.getType();
                 if (type.isSolid()) {
@@ -273,7 +273,9 @@ public class BukkitUtil extends WorldUtil {
         final World bukkitWorld = Objects.requireNonNull(getWorld(world));
         // Skip top and bottom block
         int air = 1;
-        for (int y = bukkitWorld.getMaxHeight() - 1; y >= 0; y--) {
+        int maxY = com.plotsquared.bukkit.util.BukkitWorld.getMaxWorldHeight(bukkitWorld);
+        int minY = com.plotsquared.bukkit.util.BukkitWorld.getMinWorldHeight(bukkitWorld);
+        for (int y = maxY - 1; y >= minY; y--) {
             Block block = bukkitWorld.getBlockAt(x, y, z);
             Material type = block.getType();
             if (type.isSolid()) {
@@ -345,13 +347,15 @@ public class BukkitUtil extends WorldUtil {
             final Block block = world.getBlockAt(location.getX(), location.getY(), location.getZ());
             final Material type = block.getType();
             if (type != Material.LEGACY_SIGN && type != Material.LEGACY_WALL_SIGN) {
-                BlockFace facing = BlockFace.EAST;
-                if (world.getBlockAt(location.getX(), location.getY(), location.getZ() + 1).getType().isSolid()) {
-                    facing = BlockFace.NORTH;
-                } else if (world.getBlockAt(location.getX() + 1, location.getY(), location.getZ()).getType().isSolid()) {
-                    facing = BlockFace.WEST;
-                } else if (world.getBlockAt(location.getX(), location.getY(), location.getZ() - 1).getType().isSolid()) {
-                    facing = BlockFace.SOUTH;
+                BlockFace facing = BlockFace.NORTH;
+                if (!world.getBlockAt(location.getX(), location.getY(), location.getZ() + 1).getType().isSolid()) {
+                    if (world.getBlockAt(location.getX() - 1, location.getY(), location.getZ()).getType().isSolid()) {
+                        facing = BlockFace.EAST;
+                    } else if (world.getBlockAt(location.getX() + 1, location.getY(), location.getZ()).getType().isSolid()) {
+                        facing = BlockFace.WEST;
+                    } else if (world.getBlockAt(location.getX(), location.getY(), location.getZ() - 1).getType().isSolid()) {
+                        facing = BlockFace.SOUTH;
+                    }
                 }
                 if (PlotSquared.platform().serverVersion()[1] == 13) {
                     block.setType(Material.valueOf(area.legacySignMaterial()), false);
@@ -371,7 +375,7 @@ public class BukkitUtil extends WorldUtil {
                     sign.setLine(i, LEGACY_COMPONENT_SERIALIZER
                             .serialize(MINI_MESSAGE.parse(lines[i].getComponent(LocaleHolder.console()), replacements)));
                 }
-                sign.update(true);
+                sign.update(true, false);
             }
         });
     }
@@ -382,27 +386,6 @@ public class BukkitUtil extends WorldUtil {
         return new StringComparison<BlockState>().new ComparisonResult(1, state);
     }
 
-    @Override
-    public void setBiomes(
-            final @NonNull String worldName,
-            final @NonNull CuboidRegion region,
-            final @NonNull BiomeType biomeType
-    ) {
-        final World world = getWorld(worldName);
-        if (world == null) {
-            LOGGER.warn("An error occurred while setting the biome because the world was null", new RuntimeException());
-            return;
-        }
-        final Biome biome = BukkitAdapter.adapt(biomeType);
-        for (int x = region.getMinimumPoint().getX(); x <= region.getMaximumPoint().getX(); x++) {
-            for (int z = region.getMinimumPoint().getZ(); z <= region.getMaximumPoint().getZ(); z++) {
-                if (world.getBiome(x, z) != biome) {
-                    world.setBiome(x, z, biome);
-                }
-            }
-        }
-    }
-
     @Override
     public com.sk89q.worldedit.world.@NonNull World getWeWorld(final @NonNull String world) {
         return new BukkitWorld(Bukkit.getWorld(world));

Bukkit/src/main/java/com/plotsquared/bukkit/util/BukkitWorld.java

@@ -36,6 +36,18 @@ import java.util.Objects;
 public class BukkitWorld implements World<org.bukkit.World> {
 
     private static final Map<String, BukkitWorld> worldMap = Maps.newHashMap();
+    private static final boolean HAS_MIN_Y;
+
+    static {
+        boolean temp;
+        try {
+            org.bukkit.World.class.getMethod("getMinHeight");
+            temp = true;
+        } catch (NoSuchMethodException e) {
+            temp = false;
+        }
+        HAS_MIN_Y = temp;
+    }
 
     private final org.bukkit.World world;
 
@@ -73,6 +85,24 @@ public class BukkitWorld implements World<org.bukkit.World> {
         return bukkitWorld;
     }
 
+    /**
+     * Get the min world height from a Bukkit {@link org.bukkit.World}. Inclusive
+     *
+     * @since 6.6.0
+     */
+    public static int getMinWorldHeight(org.bukkit.World world) {
+        return HAS_MIN_Y ? world.getMinHeight() : 0;
+    }
+
+    /**
+     * Get the max world height from a Bukkit {@link org.bukkit.World}. Exclusive
+     *
+     * @since 6.6.0
+     */
+    public static int getMaxWorldHeight(org.bukkit.World world) {
+        return HAS_MIN_Y ? world.getMaxHeight() : 256;
+    }
+
     @Override
     public org.bukkit.World getPlatformWorld() {
         return this.world;
@@ -83,34 +113,41 @@ public class BukkitWorld implements World<org.bukkit.World> {
         return this.world.getName();
     }
 
+    @Override
+    public int getMinHeight() {
+        return getMinWorldHeight(world);
+    }
+
+    @Override
+    public int getMaxHeight() {
+        return getMaxWorldHeight(world) - 1;
+    }
+
+    @Override
     public boolean equals(final Object o) {
-        if (o == this) {
+        if (this == o) {
             return true;
         }
-        if (!(o instanceof final BukkitWorld other)) {
+        if (o == null || getClass() != o.getClass()) {
             return false;
         }
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        if (!Objects.equals(this.world, other.world)) {
-            return false;
-        }
-        return true;
+        final BukkitWorld that = (BukkitWorld) o;
+        return world.equals(that.world);
     }
 
+    @Override
+    public int hashCode() {
+        return world.hashCode();
+    }
+
+    /**
+     * @deprecated This method is not meant to be invoked or overridden, with no replacement.
+     */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     protected boolean canEqual(final Object other) {
         return other instanceof BukkitWorld;
     }
 
-    public int hashCode() {
-        final int PRIME = 59;
-        int result = 1;
-        final Object $world = this.world;
-        result = result * PRIME + ($world == null ? 43 : $world.hashCode());
-        return result;
-    }
-
     public String toString() {
         return "BukkitWorld(world=" + this.world + ")";
     }

Bukkit/src/main/java/com/plotsquared/bukkit/util/ContentMap.java

@@ -70,7 +70,7 @@ public class ContentMap {
         }
         for (int x = x1; x <= x2; x++) {
             for (int z = z1; z <= z2; z++) {
-                saveBlocks(world, 256, x, z, 0, 0);
+                saveBlocks(world, x, z);
             }
         }
     }
@@ -92,14 +92,7 @@ public class ContentMap {
         }
     }
 
-    void saveEntitiesIn(Chunk chunk, CuboidRegion region) {
-        saveEntitiesIn(chunk, region, 0, 0, false);
-    }
-
-    void saveEntitiesIn(
-            Chunk chunk, CuboidRegion region, int offsetX, int offsetZ,
-            boolean delete
-    ) {
+    void saveEntitiesIn(Chunk chunk, CuboidRegion region, boolean delete) {
         for (Entity entity : chunk.getEntities()) {
             Location location = BukkitUtil.adapt(entity.getLocation());
             int x = location.getX();
@@ -111,8 +104,6 @@ public class ContentMap {
                 continue;
             }
             EntityWrapper wrap = new ReplicatingEntityWrapper(entity, (short) 2);
-            wrap.x += offsetX;
-            wrap.z += offsetZ;
             wrap.saveEntity();
             this.entities.add(wrap);
             if (delete) {
@@ -123,10 +114,10 @@ public class ContentMap {
         }
     }
 
-    void restoreEntities(World world, int xOffset, int zOffset) {
+    void restoreEntities(World world) {
         for (EntityWrapper entity : this.entities) {
             try {
-                entity.spawn(world, xOffset, zOffset);
+                entity.spawn(world, 0, 0);
             } catch (Exception e) {
                 LOGGER.error("Failed to restore entity", e);
             }
@@ -134,15 +125,13 @@ public class ContentMap {
         this.entities.clear();
     }
 
-    //todo optimize maxY
-    void saveBlocks(BukkitWorld world, int maxY, int x, int z, int offsetX, int offsetZ) {
-        maxY = Math.min(255, maxY);
-        BaseBlock[] ids = new BaseBlock[maxY + 1];
-        for (short y = 0; y <= maxY; y++) {
-            BaseBlock block = world.getFullBlock(BlockVector3.at(x, y, z));
-            ids[y] = block;
+    private void saveBlocks(BukkitWorld world, int x, int z) {
+        BaseBlock[] ids = new BaseBlock[world.getMaxY() - world.getMinY() + 1];
+        for (short yIndex = 0; yIndex <= world.getMaxY() - world.getMinY(); yIndex++) {
+            BaseBlock block = world.getFullBlock(BlockVector3.at(x, yIndex + world.getMinY(), z));
+            ids[yIndex] = block;
         }
-        PlotLoc loc = new PlotLoc(x + offsetX, z + offsetZ);
+        PlotLoc loc = new PlotLoc(x, z);
         this.allBlocks.put(loc, ids);
     }
 

Bukkit/src/main/java/com/plotsquared/bukkit/util/fawe/FaweRegionManager.java

@@ -110,6 +110,11 @@ public class FaweRegionManager extends BukkitRegionManager {
         delegate.setBiome(region, extendBiome, biome, world, whenDone);
     }
 
+    @Override
+    public void setBiome(CuboidRegion region, int extendBiome, BiomeType biome, PlotArea area, Runnable whenDone) {
+        delegate.setBiome(region, extendBiome, biome, area.getWorldName(), whenDone);
+    }
+
     @Override
     public boolean copyRegion(
             final @NonNull Location pos1,

Bukkit/src/main/java/com/plotsquared/bukkit/util/fawe/FaweSchematicHandler.java

@@ -67,7 +67,7 @@ public class FaweSchematicHandler extends SchematicHandler {
             final PlotPlayer<?> actor,
             final RunnableVal<Boolean> whenDone
     ) {
-        delegate.paste(schematic, plot, xOffset, yOffset, zOffset, autoHeight, whenDone);
+        delegate.paste(schematic, plot, xOffset, yOffset, zOffset, autoHeight, actor, whenDone);
     }
 
     @Override

Core/build.gradle.kts

@@ -22,7 +22,7 @@ dependencies {
     api(libs.guiceassistedinject) {
         exclude("com.google.inject", "guice")
     }
-    api(libs.findbugs)
+    api(libs.spotbugs)
 
     // Plugins
     compileOnly(libs.worldeditCore) {

Core/src/main/java/com/plotsquared/core/PlotPlatform.java

@@ -98,6 +98,22 @@ public interface PlotPlatform<P> extends LocaleHolder {
      */
     int[] serverVersion();
 
+    /**
+     * Gets the default minimum world height for the version of Minecraft that the server is running.
+     *
+     * @return minimum world height
+     * @since 6.6.0
+     */
+    int versionMinHeight();
+
+    /**
+     * Gets the default maximum world height for the version of Minecraft that the server is running.
+     *
+     * @return maximum world height (inclusive)
+     * @since 6.6.0
+     */
+    int versionMaxHeight();
+
     /**
      * Gets the server implementation name and version
      *

Core/src/main/java/com/plotsquared/core/PlotSquared.java

@@ -889,8 +889,8 @@ public class PlotSquared {
                             e.printStackTrace();
                         }
                         LOGGER.info("| generator: {}>{}", baseGenerator, areaGen);
-                        LOGGER.info("| plot world: {}", pa);
-                        LOGGER.info("| manager: {}", pa);
+                        LOGGER.info("| plot world: {}", pa.getClass().getCanonicalName());
+                        LOGGER.info("| manager: {}", pa.getPlotManager().getClass().getCanonicalName());
                         LOGGER.info("Note: Area created for cluster '{}' (invalid or old configuration?)", name);
                         areaGen.getPlotGenerator().initialize(pa);
                         areaGen.augment(pa);
@@ -906,6 +906,13 @@ public class PlotSquared {
                     throw new IllegalArgumentException("Invalid Generator: " + gen_string);
                 }
                 PlotArea pa = areaGen.getPlotGenerator().getNewPlotArea(world, null, null, null);
+                LOGGER.info("- generator: {}>{}", baseGenerator, areaGen);
+                LOGGER.info("- plot world: {}", pa.getClass().getCanonicalName());
+                LOGGER.info("- plot area manager: {}", pa.getPlotManager().getClass().getCanonicalName());
+                if (!this.worldConfiguration.contains(path)) {
+                    this.worldConfiguration.createSection(path);
+                    worldSection = this.worldConfiguration.getConfigurationSection(path);
+                }
                 pa.saveConfiguration(worldSection);
                 pa.loadDefaultConfiguration(worldSection);
                 try {
@@ -913,9 +920,6 @@ public class PlotSquared {
                 } catch (IOException e) {
                     e.printStackTrace();
                 }
-                LOGGER.info("- generator: {}>{}", baseGenerator, areaGen);
-                LOGGER.info("- plot world: {}", pa);
-                LOGGER.info("- plot area manager: {}", pa.getPlotManager());
                 areaGen.getPlotGenerator().initialize(pa);
                 areaGen.augment(pa);
                 addPlotArea(pa);
@@ -1020,8 +1024,8 @@ public class PlotSquared {
             // save configuration
 
             final List<String> validArguments = Arrays
-                    .asList("s=", "size=", "g=", "gap=", "h=", "height=", "f=", "floor=", "m=", "main=",
-                            "w=", "wall=", "b=", "border="
+                    .asList("s=", "size=", "g=", "gap=", "h=", "height=", "minh=", "minheight=", "maxh=", "maxheight=",
+                            "f=", "floor=", "m=", "main=", "w=", "wall=", "b=", "border="
                     );
 
             // Calculate the number of expected arguments
@@ -1100,6 +1104,14 @@ public class PlotSquared {
                                     ConfigurationUtil.INTEGER.parseString(value).shortValue()
                             );
                         }
+                        case "minh", "minheight" -> this.worldConfiguration.set(
+                                base + "world.min_gen_height",
+                                ConfigurationUtil.INTEGER.parseString(value).shortValue()
+                        );
+                        case "maxh", "maxheight" -> this.worldConfiguration.set(
+                                base + "world.max_gen_height",
+                                ConfigurationUtil.INTEGER.parseString(value).shortValue()
+                        );
                         case "f", "floor" -> this.worldConfiguration.set(
                                 base + "plot.floor",
                                 ConfigurationUtil.BLOCK_BUCKET.parseString(value).toString()

Core/src/main/java/com/plotsquared/core/command/Area.java

@@ -75,6 +75,7 @@ import com.sk89q.worldedit.function.operation.Operations;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.regions.Region;
+import com.sk89q.worldedit.world.World;
 import net.kyori.adventure.text.minimessage.Template;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
@@ -191,11 +192,12 @@ public class Area extends SubCommand {
                 final BlockVector3 playerSelectionMin = playerSelectedRegion.getMinimumPoint();
                 final BlockVector3 playerSelectionMax = playerSelectedRegion.getMaximumPoint();
                 // Create a new selection that spans the entire vertical range of the world
+                World world = playerSelectedRegion.getWorld();
                 final CuboidRegion selectedRegion =
                         new CuboidRegion(
                                 playerSelectedRegion.getWorld(),
-                                BlockVector3.at(playerSelectionMin.getX(), 0, playerSelectionMin.getZ()),
-                                BlockVector3.at(playerSelectionMax.getX(), 255, playerSelectionMax.getZ())
+                                BlockVector3.at(playerSelectionMin.getX(), world.getMinY(), playerSelectionMin.getZ()),
+                                BlockVector3.at(playerSelectionMax.getX(), world.getMaxY(), playerSelectionMax.getZ())
                         );
                 // There's only one plot in the area...
                 final PlotId plotId = PlotId.of(1, 1);
@@ -278,9 +280,9 @@ public class Area extends SubCommand {
                     if (offsetZ != 0) {
                         this.worldConfiguration.set(path + ".road.offset.z", offsetZ);
                     }
-                    final String world = this.setupUtils.setupWorld(singleBuilder);
-                    if (this.worldUtil.isWorld(world)) {
-                        PlotSquared.get().loadWorld(world, null);
+                    final String worldName = this.setupUtils.setupWorld(singleBuilder);
+                    if (this.worldUtil.isWorld(worldName)) {
+                        PlotSquared.get().loadWorld(worldName, null);
                         player.sendMessage(TranslatableCaption.of("single.single_area_created"));
                     } else {
                         player.sendMessage(
@@ -369,7 +371,8 @@ public class Area extends SubCommand {
                                 int lower = (area.ROAD_WIDTH & 1) == 0 ? area.ROAD_WIDTH / 2 - 1 : area.ROAD_WIDTH / 2;
                                 final int offsetX = bx - (area.ROAD_WIDTH == 0 ? 0 : lower);
                                 final int offsetZ = bz - (area.ROAD_WIDTH == 0 ? 0 : lower);
-                                final CuboidRegion region = RegionUtil.createRegion(bx, tx, bz, tz);
+                                // Height doesn't matter for this region
+                                final CuboidRegion region = RegionUtil.createRegion(bx, tx, 0, 0, bz, tz);
                                 final Set<PlotArea> areas = this.plotAreaManager.getPlotAreasSet(area.getWorldName(), region);
                                 if (!areas.isEmpty()) {
                                     player.sendMessage(

Core/src/main/java/com/plotsquared/core/command/Confirm.java

@@ -48,7 +48,7 @@ public class Confirm extends SubCommand {
             player.sendMessage(TranslatableCaption.of("confirm.expired_confirm"));
             return false;
         }
-        TaskManager.runTaskAsync(command.command);
+        TaskManager.runTask(command.command);
         return true;
     }
 

Core/src/main/java/com/plotsquared/core/command/DebugExec.java

@@ -49,6 +49,7 @@ import org.checkerframework.checker.nullness.qual.NonNull;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.stream.Collectors;
@@ -207,7 +208,7 @@ public class DebugExec extends SubCommand {
                     }
                     boolean result;
                     if (HybridUtils.regions != null) {
-                        result = this.hybridUtils.scheduleRoadUpdate(area, HybridUtils.regions, 0, new HashSet<>());
+                        result = this.hybridUtils.scheduleRoadUpdate(area, HybridUtils.regions, 0, new LinkedHashSet<>());
                     } else {
                         result = this.hybridUtils.scheduleRoadUpdate(area, 0);
                     }

Core/src/main/java/com/plotsquared/core/command/Load.java

@@ -40,6 +40,7 @@ import com.plotsquared.core.plot.schematic.Schematic;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.SchematicHandler;
+import com.plotsquared.core.util.TimeUtil;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.plotsquared.core.util.task.TaskManager;
 import net.kyori.adventure.text.minimessage.Template;
@@ -205,7 +206,7 @@ public class Load extends SubCommand {
                     if (split.length < 5) {
                         continue;
                     }
-                    String time = secToTime((System.currentTimeMillis() / 1000) - Long.parseLong(split[0]));
+                    String time = TimeUtil.secToTime((System.currentTimeMillis() / 1000) - Long.parseLong(split[0]));
                     String world = split[1];
                     PlotId id = PlotId.fromString(split[2] + ';' + split[3]);
                     String size = split[4];
@@ -223,6 +224,10 @@ public class Load extends SubCommand {
         }
     }
 
+    /**
+     * @deprecated Use {@link TimeUtil#secToTime(long)}
+     */
+    @Deprecated(forRemoval = true, since = "6.6.2")
     public String secToTime(long time) {
         StringBuilder toreturn = new StringBuilder();
         if (time >= 33868800) {

Core/src/main/java/com/plotsquared/core/command/Save.java

@@ -104,8 +104,8 @@ public class Save extends SubCommand {
                     TaskManager.runTaskAsync(() -> {
                         String time = (System.currentTimeMillis() / 1000) + "";
                         Location[] corners = plot.getCorners();
-                        corners[0] = corners[0].withY(0);
-                        corners[1] = corners[1].withY(255);
+                        corners[0] = corners[0].withY(plot.getArea().getMinBuildHeight());
+                        corners[1] = corners[1].withY(plot.getArea().getMaxBuildHeight());
                         int size = (corners[1].getX() - corners[0].getX()) + 1;
                         PlotId id = plot.getId();
                         String world1 = plot.getArea().toString().replaceAll(";", "-")

Core/src/main/java/com/plotsquared/core/command/SetHome.java

@@ -57,8 +57,12 @@ public class SetHome extends SetCommand {
                 Plot base = plot.getBasePlot(false);
                 Location bottom = base.getBottomAbs();
                 Location location = player.getLocationFull();
-                BlockLoc rel = new BlockLoc(location.getX() - bottom.getX(), location.getY(),
-                        location.getZ() - bottom.getZ(), location.getYaw(), location.getPitch()
+                BlockLoc rel = new BlockLoc(
+                        location.getX() - bottom.getX(),
+                        location.getY(), // y is absolute
+                        location.getZ() - bottom.getZ(),
+                        location.getYaw(),
+                        location.getPitch()
                 );
                 base.setHome(rel);
                 player.sendMessage(TranslatableCaption.of("position.position_set"));

Core/src/main/java/com/plotsquared/core/command/Trim.java

@@ -180,12 +180,12 @@ public class Trim extends SubCommand {
                             int bx = cbx << 4;
                             int bz = cbz << 4;
                             CuboidRegion region =
-                                    RegionUtil.createRegion(bx, bx + 511, bz, bz + 511);
+                                    RegionUtil.createRegion(bx, bx + 511, 0, 0, bz, bz + 511);
                             for (Plot plot : PlotQuery.newQuery().inWorld(world)) {
                                 Location bot = plot.getBottomAbs();
                                 Location top = plot.getExtendedTopAbs();
                                 CuboidRegion plotReg = RegionUtil
-                                        .createRegion(bot.getX(), top.getX(), bot.getZ(), top.getZ());
+                                        .createRegion(bot.getX(), top.getX(), 0, 0, bot.getZ(), top.getZ());
                                 if (!RegionUtil.intersects(region, plotReg)) {
                                     continue;
                                 }

Core/src/main/java/com/plotsquared/core/generator/AugmentedUtils.java

@@ -54,12 +54,23 @@ public class AugmentedUtils {
         enabled = true;
     }
 
-    public static boolean generate(
-            @Nullable Object chunkObject,
+    /**
+     * Generate an augmented world chunk at the given location. If a queue is given, the data will be written to it, else a new
+     * queue will be created and written to world. Returns true if generation occurred.
+     *
+     * @param world  World name to generate data for. Must be a PlotSquared world containing one or more areas else nothing will
+     *               happen.
+     * @param chunkX Chunk X position
+     * @param chunkZ Chunk Z position
+     * @param queue  Queue to write to, if desired.
+     * @return true if generation occurred.
+     * @since TODO
+     */
+    public static boolean generateChunk(
             final @NonNull String world,
             final int chunkX,
             final int chunkZ,
-            QueueCoordinator queue
+            @Nullable QueueCoordinator queue
     ) {
         if (!enabled) {
             return false;
@@ -70,7 +81,7 @@ public class AugmentedUtils {
         final int blockZ = chunkZ << 4;
         // Create a region that contains the
         // entire chunk
-        CuboidRegion region = RegionUtil.createRegion(blockX, blockX + 15, blockZ, blockZ + 15);
+        CuboidRegion region = RegionUtil.createRegion(blockX, blockX + 15, 0, 0, blockZ, blockZ + 15);
         // Query for plot areas in the chunk
         final Set<PlotArea> areas = PlotSquared.get().getPlotAreaManager().getPlotAreasSet(world, region);
         if (areas.isEmpty()) {
@@ -97,9 +108,6 @@ public class AugmentedUtils {
                         .platform()
                         .worldUtil()
                         .getWeWorld(world));
-                if (chunkObject != null) {
-                    queue.setChunkObject(chunkObject);
-                }
             }
             QueueCoordinator primaryMask;
             // coordinates
@@ -122,6 +130,7 @@ public class AugmentedUtils {
             }
             QueueCoordinator secondaryMask;
             BlockState air = BlockTypes.AIR.getDefaultState();
+            int startYOffset = !(area instanceof ClassicPlotWorld) || ((ClassicPlotWorld) area).PLOT_BEDROCK ? 1 : 0;
             if (area.getTerrain() == PlotAreaTerrainType.ROAD) {
                 PlotManager manager = area.getPlotManager();
                 final boolean[][] canPlace = new boolean[16][16];
@@ -132,7 +141,7 @@ public class AugmentedUtils {
                         int worldZ = z + blockZ;
                         boolean can = manager.getPlotId(worldX, 0, worldZ) == null;
                         if (can) {
-                            for (int y = 1; y < 128; y++) {
+                            for (int y = area.getMinGenHeight() + startYOffset; y <= area.getMaxGenHeight(); y++) {
                                 queue.setBlock(worldX, y, worldZ, air);
                             }
                             canPlace[x][z] = true;
@@ -149,30 +158,24 @@ public class AugmentedUtils {
                 secondaryMask = primaryMask;
                 for (int x = relativeBottomX; x <= relativeTopX; x++) {
                     for (int z = relativeBottomZ; z <= relativeTopZ; z++) {
-                        for (int y = 1; y < 128; y++) {
+                        for (int y = area.getMinGenHeight() + startYOffset; y <= area.getMaxGenHeight(); y++) {
                             queue.setBlock(blockX + x, y, blockZ + z, air);
                         }
                     }
                 }
                 generationResult = true;
             }
-            if (chunkObject != null) {
-                primaryMask.setChunkObject(chunkObject);
-            }
-            if (chunkObject != null) {
-                secondaryMask.setChunkObject(chunkObject);
-            }
 
+            // This queue should not be enqueued as it is simply used to restrict block setting, and then delegate to the
+            // actual queue
             ScopedQueueCoordinator scoped =
                     new ScopedQueueCoordinator(
                             secondaryMask,
-                            Location.at(world, blockX, 0, blockZ),
-                            Location.at(world, blockX + 15, 255, blockZ + 15)
+                            Location.at(world, blockX, area.getMinGenHeight(), blockZ),
+                            Location.at(world, blockX + 15, area.getMaxGenHeight(), blockZ + 15)
                     );
             generator.generateChunk(scoped, area);
             generator.populateChunk(scoped, area);
-            scoped.setForceSync(true);
-            scoped.enqueue();
         }
         if (enqueue) {
             queue.enqueue();
@@ -180,4 +183,19 @@ public class AugmentedUtils {
         return generationResult;
     }
 
+    /**
+     * @deprecated Use {@link AugmentedUtils#generateChunk(String, int, int, QueueCoordinator)} as chunkObject is not required
+     * in the above method
+     */
+    @Deprecated(forRemoval = true, since = "TODO")
+    public static boolean generate(
+            @Nullable Object chunkObject,
+            final @NonNull String world,
+            final int chunkX,
+            final int chunkZ,
+            QueueCoordinator queue
+    ) {
+        return generateChunk(world, chunkX, chunkZ, queue);
+    }
+
 }

Core/src/main/java/com/plotsquared/core/generator/ClassicPlotManager.java

@@ -37,7 +37,6 @@ import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotAreaTerrainType;
 import com.plotsquared.core.plot.PlotId;
 import com.plotsquared.core.queue.QueueCoordinator;
-import com.plotsquared.core.util.BlockUtil;
 import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.RegionManager;
 import com.plotsquared.core.util.task.TaskManager;
@@ -147,7 +146,15 @@ public class ClassicPlotManager extends SquarePlotManager {
     ) {
         Plot plot = classicPlotWorld.getPlotAbs(plotId);
         if (plot != null && plot.isBasePlot()) {
-            return this.regionManager.setCuboids(classicPlotWorld, plot.getRegions(), blocks, 1, getWorldHeight(), actor, queue);
+            return this.regionManager.setCuboids(
+                    classicPlotWorld,
+                    plot.getRegions(),
+                    blocks,
+                    classicPlotWorld.getMinBuildHeight(),
+                    classicPlotWorld.getMaxBuildHeight(),
+                    actor,
+                    queue
+            );
         }
         return false;
     }
@@ -175,7 +182,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                             plot.getRegions(),
                             blocks,
                             classicPlotWorld.PLOT_HEIGHT + 1,
-                            getWorldHeight(),
+                            classicPlotWorld.getMaxBuildHeight(),
                             actor,
                             queue
                     );
@@ -204,7 +211,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                     classicPlotWorld,
                     plot.getRegions(),
                     blocks,
-                    1,
+                    classicPlotWorld.getMinBuildHeight(),
                     classicPlotWorld.PLOT_HEIGHT - 1,
                     actor,
                     queue
@@ -281,7 +288,7 @@ public class ClassicPlotManager extends SquarePlotManager {
             }
         }
 
-        int maxY = classicPlotWorld.getPlotManager().getWorldHeight();
+        int maxY = classicPlotWorld.getMaxBuildHeight();
         if (!plot.isMerged(Direction.NORTH)) {
             int z = bottom.getZ();
             for (int x = bottom.getX(); x <= top.getX(); x++) {
@@ -382,7 +389,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         if (!plot.isMerged(Direction.NORTH)) {
             int z = bot.getZ();
             for (int x = bot.getX(); x < top.getX(); x++) {
-                for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
+                for (int y = classicPlotWorld.getMinBuildHeight(); y <= classicPlotWorld.WALL_HEIGHT; y++) {
                     queue.setBlock(x, y, z, blocks);
                 }
             }
@@ -390,7 +397,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         if (!plot.isMerged(Direction.WEST)) {
             int x = bot.getX();
             for (int z = bot.getZ(); z < top.getZ(); z++) {
-                for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
+                for (int y = classicPlotWorld.getMinBuildHeight(); y <= classicPlotWorld.WALL_HEIGHT; y++) {
                     queue.setBlock(x, y, z, blocks);
                 }
             }
@@ -398,7 +405,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         if (!plot.isMerged(Direction.SOUTH)) {
             int z = top.getZ();
             for (int x = bot.getX(); x < top.getX() + (plot.isMerged(Direction.EAST) ? 0 : 1); x++) {
-                for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
+                for (int y = classicPlotWorld.getMinBuildHeight(); y <= classicPlotWorld.WALL_HEIGHT; y++) {
                     queue.setBlock(x, y, z, blocks);
                 }
             }
@@ -406,7 +413,7 @@ public class ClassicPlotManager extends SquarePlotManager {
         if (!plot.isMerged(Direction.EAST)) {
             int x = top.getX();
             for (int z = bot.getZ(); z < top.getZ() + (plot.isMerged(Direction.SOUTH) ? 0 : 1); z++) {
-                for (int y = 1; y <= classicPlotWorld.WALL_HEIGHT; y++) {
+                for (int y = classicPlotWorld.getMinBuildHeight(); y <= classicPlotWorld.WALL_HEIGHT; y++) {
                     queue.setBlock(x, y, z, blocks);
                 }
             }
@@ -501,7 +508,7 @@ public class ClassicPlotManager extends SquarePlotManager {
             enqueue = true;
         }
 
-        int maxY = getWorldHeight();
+        int maxY = classicPlotWorld.getMaxGenHeight();
         queue.setCuboid(
                 Location.at(
                         classicPlotWorld.getWorldName(),
@@ -513,27 +520,27 @@ public class ClassicPlotManager extends SquarePlotManager {
         );
         if (classicPlotWorld.PLOT_BEDROCK) {
             queue.setCuboid(
-                    Location.at(classicPlotWorld.getWorldName(), sx, 0, sz + 1),
-                    Location.at(classicPlotWorld.getWorldName(), ex, 0, ez - 1),
+                    Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.getMinGenHeight(), sz + 1),
+                    Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getMinGenHeight(), ez - 1),
                     BlockTypes.BEDROCK.getDefaultState()
             );
-            queue.setCuboid(
-                    Location.at(classicPlotWorld.getWorldName(), sx, 1, sz + 1),
-                    Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.WALL_HEIGHT, ez - 1),
-                    classicPlotWorld.WALL_FILLING.toPattern()
-            );
-        } else {
-            queue.setCuboid(
-                    Location.at(classicPlotWorld.getWorldName(), sx, 0, sz + 1),
-                    Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.WALL_HEIGHT, ez - 1),
-                    classicPlotWorld.WALL_FILLING.toPattern()
-            );
         }
+        int startYOffset = classicPlotWorld.PLOT_BEDROCK ? 1 : 0;
         queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx, 1, sz + 1),
+                Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getMinGenHeight() + startYOffset, sz + 1),
+                Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.WALL_HEIGHT, ez - 1),
+                classicPlotWorld.WALL_FILLING.toPattern()
+        );
+        queue.setCuboid(
+                Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.getMinGenHeight() + startYOffset, sz + 1),
                 Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.WALL_HEIGHT, ez - 1),
                 classicPlotWorld.WALL_FILLING.toPattern()
         );
+        queue.setCuboid(
+                Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight() + startYOffset, sz + 1),
+                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.ROAD_HEIGHT, ez - 1),
+                classicPlotWorld.ROAD_BLOCK.toPattern()
+        );
 
         if (classicPlotWorld.PLACE_TOP_BLOCK) {
             queue.setCuboid(
@@ -541,24 +548,12 @@ public class ClassicPlotManager extends SquarePlotManager {
                     Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.WALL_HEIGHT + 1, ez - 1),
                     classicPlotWorld.WALL_BLOCK.toPattern()
             );
-        }
-        queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), ex, 1, sz + 1),
-                Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.WALL_HEIGHT, ez - 1),
-                classicPlotWorld.WALL_FILLING.toPattern()
-        );
-        if (classicPlotWorld.PLACE_TOP_BLOCK) {
             queue.setCuboid(
                     Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.WALL_HEIGHT + 1, sz + 1),
                     Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.WALL_HEIGHT + 1, ez - 1),
                     classicPlotWorld.WALL_BLOCK.toPattern()
             );
         }
-        queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 1, sz + 1),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.ROAD_HEIGHT, ez - 1),
-                classicPlotWorld.ROAD_BLOCK.toPattern()
-        );
         return !enqueue || queue.enqueue();
     }
 
@@ -584,19 +579,32 @@ public class ClassicPlotManager extends SquarePlotManager {
                         classicPlotWorld.schematicStartHeight() + 1,
                         sz
                 ),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.getPlotManager().getWorldHeight(), ez),
+                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.getMaxGenHeight(), ez),
                 BlockTypes.AIR.getDefaultState()
         );
+        if (classicPlotWorld.PLOT_BEDROCK) {
+            queue.setCuboid(
+                    Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight(), sz),
+                    Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.getMinGenHeight(), ez),
+                    BlockTypes.BEDROCK.getDefaultState()
+            );
+        }
+        int startYOffset = classicPlotWorld.PLOT_BEDROCK ? 1 : 0;
         queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 0, sz),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, 0, ez),
-                BlockUtil.get((short) 7, (byte) 0)
-        );
-        queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 1, sz),
+                Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight() + startYOffset, sz),
                 Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.WALL_HEIGHT, sz),
                 classicPlotWorld.WALL_FILLING.toPattern()
         );
+        queue.setCuboid(
+                Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight() + startYOffset, ez),
+                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.WALL_HEIGHT, ez),
+                classicPlotWorld.WALL_FILLING.toPattern()
+        );
+        queue.setCuboid(
+                Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight() + startYOffset, sz + 1),
+                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.ROAD_HEIGHT, ez - 1),
+                classicPlotWorld.ROAD_BLOCK.toPattern()
+        );
 
         if (classicPlotWorld.PLACE_TOP_BLOCK) {
             queue.setCuboid(
@@ -604,24 +612,12 @@ public class ClassicPlotManager extends SquarePlotManager {
                     Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.WALL_HEIGHT + 1, sz),
                     classicPlotWorld.WALL_BLOCK.toPattern()
             );
-        }
-        queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 1, ez),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.WALL_HEIGHT, ez),
-                classicPlotWorld.WALL_FILLING.toPattern()
-        );
-        if (classicPlotWorld.PLACE_TOP_BLOCK) {
             queue.setCuboid(
                     Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.WALL_HEIGHT + 1, ez),
                     Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.WALL_HEIGHT + 1, ez),
                     classicPlotWorld.WALL_BLOCK.toPattern()
             );
         }
-        queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 1, sz + 1),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.ROAD_HEIGHT, ez - 1),
-                classicPlotWorld.ROAD_BLOCK.toPattern()
-        );
         return !enqueue || queue.enqueue();
     }
 
@@ -642,14 +638,19 @@ public class ClassicPlotManager extends SquarePlotManager {
 
         queue.setCuboid(
                 Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.ROAD_HEIGHT + 1, sz + 1),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.getPlotManager().getWorldHeight(), ez - 1),
+                Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.getMaxGenHeight(), ez - 1),
                 BlockTypes.AIR.getDefaultState()
         );
-        queue.setCuboid(Location.at(classicPlotWorld.getWorldName(), sx + 1, 0, sz + 1),
-                Location.at(classicPlotWorld.getWorldName(), ex - 1, 0, ez - 1), BlockUtil.get((short) 7, (byte) 0)
-        );
+        if (classicPlotWorld.PLOT_BEDROCK) {
+            queue.setCuboid(
+                    Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight(), sz + 1),
+                    Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.getMinGenHeight(), ez - 1),
+                    BlockTypes.BEDROCK.getDefaultState()
+            );
+        }
+        int startYOffset = classicPlotWorld.PLOT_BEDROCK ? 1 : 0;
         queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 1, sz + 1),
+                Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight() + startYOffset, sz + 1),
                 Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.ROAD_HEIGHT, ez - 1),
                 classicPlotWorld.ROAD_BLOCK.toPattern()
         );
@@ -679,11 +680,12 @@ public class ClassicPlotManager extends SquarePlotManager {
                                 classicPlotWorld.schematicStartHeight() + 1,
                                 sz
                         ),
-                        Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getPlotManager().getWorldHeight(), ez),
+                        Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getMaxGenHeight(), ez),
                         BlockTypes.AIR.getDefaultState()
                 );
+        int startYOffset = classicPlotWorld.PLOT_BEDROCK ? 1 : 0;
         queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx, 1, sz + 1),
+                Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.getMinGenHeight() + startYOffset, sz + 1),
                 Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.PLOT_HEIGHT - 1, ez - 1),
                 classicPlotWorld.MAIN_BLOCK.toPattern()
         );
@@ -719,11 +721,12 @@ public class ClassicPlotManager extends SquarePlotManager {
                                 classicPlotWorld.schematicStartHeight() + 1,
                                 sz
                         ),
-                        Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getPlotManager().getWorldHeight(), ez),
+                        Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getMaxGenHeight(), ez),
                         BlockTypes.AIR.getDefaultState()
                 );
+        int startYOffset = classicPlotWorld.PLOT_BEDROCK ? 1 : 0;
         queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx + 1, 1, sz),
+                Location.at(classicPlotWorld.getWorldName(), sx + 1, classicPlotWorld.getMinGenHeight() + startYOffset, sz),
                 Location.at(classicPlotWorld.getWorldName(), ex - 1, classicPlotWorld.PLOT_HEIGHT - 1, ez),
                 classicPlotWorld.MAIN_BLOCK.toPattern()
         );
@@ -758,11 +761,12 @@ public class ClassicPlotManager extends SquarePlotManager {
                                 classicPlotWorld.schematicStartHeight() + 1,
                                 sz
                         ),
-                        Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getPlotManager().getWorldHeight(), ez),
+                        Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.getMaxGenHeight(), ez),
                         BlockTypes.AIR.getDefaultState()
                 );
+        int startYOffset = classicPlotWorld.PLOT_BEDROCK ? 1 : 0;
         queue.setCuboid(
-                Location.at(classicPlotWorld.getWorldName(), sx, 1, sz),
+                Location.at(classicPlotWorld.getWorldName(), sx, classicPlotWorld.getMinGenHeight() + startYOffset, sz),
                 Location.at(classicPlotWorld.getWorldName(), ex, classicPlotWorld.PLOT_HEIGHT - 1, ez),
                 classicPlotWorld.MAIN_BLOCK.toPattern()
         );

Core/src/main/java/com/plotsquared/core/generator/ClassicPlotWorld.java

@@ -127,16 +127,16 @@ public abstract class ClassicPlotWorld extends SquarePlotWorld {
     public void loadConfiguration(ConfigurationSection config) {
         super.loadConfiguration(config);
         this.PLOT_BEDROCK = config.getBoolean("plot.bedrock");
-        this.PLOT_HEIGHT = Math.min(255, config.getInt("plot.height"));
+        this.PLOT_HEIGHT = Math.min(getMaxGenHeight(), config.getInt("plot.height"));
         this.MAIN_BLOCK = new BlockBucket(config.getString("plot.filling"));
         this.TOP_BLOCK = new BlockBucket(config.getString("plot.floor"));
         this.WALL_BLOCK = new BlockBucket(config.getString("wall.block"));
-        this.ROAD_HEIGHT = Math.min(255, config.getInt("road.height"));
+        this.ROAD_HEIGHT = Math.min(getMaxGenHeight(), config.getInt("road.height"));
         this.ROAD_BLOCK = new BlockBucket(config.getString("road.block"));
         this.WALL_FILLING = new BlockBucket(config.getString("wall.filling"));
-        this.WALL_HEIGHT = Math.min(254, config.getInt("wall.height"));
-        this.CLAIMED_WALL_BLOCK = new BlockBucket(config.getString("wall.block_claimed"));
         this.PLACE_TOP_BLOCK = config.getBoolean("wall.place_top_block");
+        this.WALL_HEIGHT = Math.min(getMaxGenHeight() - (PLACE_TOP_BLOCK ? 1 : 0), config.getInt("wall.height"));
+        this.CLAIMED_WALL_BLOCK = new BlockBucket(config.getString("wall.block_claimed"));
     }
 
     int schematicStartHeight() {

Core/src/main/java/com/plotsquared/core/generator/HybridGen.java

@@ -91,7 +91,7 @@ public class HybridGen extends IndependentPlotGenerator {
         if (hybridPlotWorld.PLOT_BEDROCK) {
             for (short x = 0; x < 16; x++) {
                 for (short z = 0; z < 16; z++) {
-                    result.setBlock(x, 0, z, BlockTypes.BEDROCK.getDefaultState());
+                    result.setBlock(x, hybridPlotWorld.getMinGenHeight(), z, BlockTypes.BEDROCK.getDefaultState());
                 }
             }
         }
@@ -156,7 +156,7 @@ public class HybridGen extends IndependentPlotGenerator {
             }
         }
         // generation
-        int startY = hybridPlotWorld.PLOT_BEDROCK ? 1 : 0;
+        int startY = hybridPlotWorld.getMinGenHeight() + (hybridPlotWorld.PLOT_BEDROCK ? 1: 0);
         for (short x = 0; x < 16; x++) {
             if (insideRoadX[x]) {
                 for (short z = 0; z < 16; z++) {

Core/src/main/java/com/plotsquared/core/generator/HybridPlotManager.java

@@ -46,7 +46,6 @@ import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
-import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockTypes;
 import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
@@ -107,22 +106,32 @@ public class HybridPlotManager extends ClassicPlotManager {
 
     @Override
     public boolean createRoadEast(final @NonNull Plot plot, @Nullable QueueCoordinator queue) {
+        boolean enqueue = false;
+        if (queue == null) {
+            queue = hybridPlotWorld.getQueue();
+            enqueue = true;
+        }
         super.createRoadEast(plot, queue);
         PlotId id = plot.getId();
         PlotId id2 = PlotId.of(id.getX() + 1, id.getY());
         Location bot = getPlotBottomLocAbs(id2);
         Location top = getPlotTopLocAbs(id);
-        Location pos1 = Location.at(hybridPlotWorld.getWorldName(), top.getX() + 1, 0, bot.getZ() - 1);
-        Location pos2 = Location.at(hybridPlotWorld.getWorldName(), bot.getX(), Math.min(getWorldHeight(), 255), top.getZ() + 1);
+        Location pos1 = Location.at(
+                hybridPlotWorld.getWorldName(),
+                top.getX() + 1,
+                hybridPlotWorld.getMinGenHeight(),
+                bot.getZ() - 1
+        );
+        Location pos2 = Location.at(
+                hybridPlotWorld.getWorldName(),
+                bot.getX(),
+                hybridPlotWorld.getMaxGenHeight(),
+                top.getZ() + 1
+        );
         this.resetBiome(hybridPlotWorld, pos1, pos2);
         if (!hybridPlotWorld.ROAD_SCHEMATIC_ENABLED) {
             return true;
         }
-        boolean enqueue = false;
-        if (queue == null) {
-            queue = hybridPlotWorld.getQueue();
-            enqueue = true;
-        }
         createSchemAbs(queue, pos1, pos2, true);
         return !enqueue || queue.enqueue();
     }
@@ -139,7 +148,7 @@ public class HybridPlotManager extends ClassicPlotManager {
                         (pos1.getX() + pos2.getX()) / 2,
                         (pos1.getZ() + pos2.getZ()) / 2
                 ), biome)) {
-            WorldUtil.setBiome(hybridPlotWorld.getWorldName(), pos1.getX(), pos1.getZ(), pos2.getX(), pos2.getZ(), biome);
+            WorldUtil.setBiome(hybridPlotWorld.getWorldName(), new CuboidRegion(pos1.getBlockVector3(), pos2.getBlockVector3()), biome);
         }
     }
 
@@ -190,38 +199,38 @@ public class HybridPlotManager extends ClassicPlotManager {
 
     @Override
     public boolean createRoadSouth(final @NonNull Plot plot, @Nullable QueueCoordinator queue) {
+        boolean enqueue = false;
+        if (queue == null) {
+            enqueue = true;
+            queue = hybridPlotWorld.getQueue();
+        }
         super.createRoadSouth(plot, queue);
         PlotId id = plot.getId();
         PlotId id2 = PlotId.of(id.getX(), id.getY() + 1);
         Location bot = getPlotBottomLocAbs(id2);
         Location top = getPlotTopLocAbs(id);
-        Location pos1 = Location.at(hybridPlotWorld.getWorldName(), bot.getX() - 1, 0, top.getZ() + 1);
-        Location pos2 = Location.at(hybridPlotWorld.getWorldName(), top.getX() + 1, Math.min(getWorldHeight(), 255), bot.getZ());
+        Location pos1 = Location.at(hybridPlotWorld.getWorldName(), bot.getX() - 1, hybridPlotWorld.getMinGenHeight(), top.getZ() + 1);
+        Location pos2 = Location.at(hybridPlotWorld.getWorldName(), top.getX() + 1, hybridPlotWorld.getMaxGenHeight(), bot.getZ());
         this.resetBiome(hybridPlotWorld, pos1, pos2);
         if (!hybridPlotWorld.ROAD_SCHEMATIC_ENABLED) {
             return true;
         }
-        boolean enqueue = false;
-        if (queue == null) {
-            enqueue = true;
-            queue = hybridPlotWorld.getQueue();
-        }
         createSchemAbs(queue, pos1, pos2, true);
         return !enqueue || queue.enqueue();
     }
 
     @Override
     public boolean createRoadSouthEast(final @NonNull Plot plot, @Nullable QueueCoordinator queue) {
-        super.createRoadSouthEast(plot, queue);
-        PlotId id = plot.getId();
-        PlotId id2 = PlotId.of(id.getX() + 1, id.getY() + 1);
-        Location pos1 = getPlotTopLocAbs(id).add(1, 0, 1).withY(0);
-        Location pos2 = getPlotBottomLocAbs(id2).withY(Math.min(getWorldHeight(), 255));
         boolean enqueue = false;
         if (queue == null) {
             enqueue = true;
             queue = hybridPlotWorld.getQueue();
         }
+        super.createRoadSouthEast(plot, queue);
+        PlotId id = plot.getId();
+        PlotId id2 = PlotId.of(id.getX() + 1, id.getY() + 1);
+        Location pos1 = getPlotTopLocAbs(id).add(1, 0, 1);
+        Location pos2 = getPlotBottomLocAbs(id2);
         createSchemAbs(queue, pos1, pos2, true);
         if (hybridPlotWorld.ROAD_SCHEMATIC_ENABLED) {
             createSchemAbs(queue, pos1, pos2, true);
@@ -271,11 +280,23 @@ public class HybridPlotManager extends ClassicPlotManager {
             queue.setCompleteTask(whenDone);
         }
         if (!canRegen) {
-            queue.setCuboid(pos1.withY(0), pos2.withY(0), bedrock);
+            queue.setCuboid(
+                    pos1.withY(hybridPlotWorld.getMinGenHeight()),
+                    pos2.withY(hybridPlotWorld.getMinGenHeight()),
+                    hybridPlotWorld.PLOT_BEDROCK ? bedrock : filling
+            );
             // Each component has a different layer
-            queue.setCuboid(pos1.withY(1), pos2.withY(hybridPlotWorld.PLOT_HEIGHT - 1), filling);
+            queue.setCuboid(
+                    pos1.withY(hybridPlotWorld.getMinGenHeight() + 1),
+                    pos2.withY(hybridPlotWorld.PLOT_HEIGHT - 1),
+                    filling
+            );
             queue.setCuboid(pos1.withY(hybridPlotWorld.PLOT_HEIGHT), pos2.withY(hybridPlotWorld.PLOT_HEIGHT), plotfloor);
-            queue.setCuboid(pos1.withY(hybridPlotWorld.PLOT_HEIGHT + 1), pos2.withY(getWorldHeight()), BlockTypes.AIR.getDefaultState());
+            queue.setCuboid(
+                    pos1.withY(hybridPlotWorld.PLOT_HEIGHT + 1),
+                    pos2.withY(hybridPlotWorld.getMaxGenHeight()),
+                    BlockTypes.AIR.getDefaultState()
+            );
             queue.setBiomeCuboid(pos1, pos2, biome);
         } else {
             queue.setRegenRegion(new CuboidRegion(pos1.getBlockVector3(), pos2.getBlockVector3()));

Core/src/main/java/com/plotsquared/core/generator/HybridPlotWorld.java

@@ -79,6 +79,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
     public int SCHEM_Y;
     private Location SIGN_LOCATION;
     private File root = null;
+    private int lastOverlayHeightError = Integer.MIN_VALUE;
 
     @Inject
     private SchematicHandler schematicHandler;
@@ -171,9 +172,9 @@ public class HybridPlotWorld extends ClassicPlotWorld {
     public void loadConfiguration(ConfigurationSection config) {
         super.loadConfiguration(config);
         if ((this.ROAD_WIDTH & 1) == 0) {
-            this.PATH_WIDTH_LOWER = (short) (Math.floor(this.ROAD_WIDTH / 2) - 1);
+            this.PATH_WIDTH_LOWER = (short) (Math.floor(this.ROAD_WIDTH / 2f) - 1);
         } else {
-            this.PATH_WIDTH_LOWER = (short) Math.floor(this.ROAD_WIDTH / 2);
+            this.PATH_WIDTH_LOWER = (short) Math.floor(this.ROAD_WIDTH / 2f);
         }
         if (this.ROAD_WIDTH == 0) {
             this.PATH_WIDTH_UPPER = (short) (this.SIZE + 1);
@@ -251,31 +252,34 @@ public class HybridPlotWorld extends ClassicPlotWorld {
         Schematic schematic2 = this.schematicHandler.getSchematic(schematic2File);
         Schematic schematic3 = this.schematicHandler.getSchematic(schematic3File);
         int shift = this.ROAD_WIDTH / 2;
-        int oddshift = (this.ROAD_WIDTH & 1) == 0 ? 0 : 1;
+        int oddshift = (this.ROAD_WIDTH & 1);
 
         SCHEM_Y = schematicStartHeight();
         int plotY = PLOT_HEIGHT - SCHEM_Y;
         int minRoadWall = Settings.Schematics.USE_WALL_IN_ROAD_SCHEM_HEIGHT ? Math.min(ROAD_HEIGHT, WALL_HEIGHT) : ROAD_HEIGHT;
         int roadY = minRoadWall - SCHEM_Y;
 
+        int worldHeight = getMaxGenHeight() - getMinGenHeight() + 1;
+
+        // SCHEM_Y should be normalised to the plot "start" height
         if (schematic3 != null) {
-            if (schematic3.getClipboard().getDimensions().getY() == 256) {
+            if (schematic3.getClipboard().getDimensions().getY() == worldHeight) {
                 SCHEM_Y = plotY = 0;
             } else if (!Settings.Schematics.PASTE_ON_TOP) {
-                SCHEM_Y = plotY = getMinBuildHeight();
+                SCHEM_Y = plotY = getMinBuildHeight() - getMinGenHeight();
             }
         }
 
         if (schematic1 != null) {
-            if (schematic1.getClipboard().getDimensions().getY() == 256) {
-                SCHEM_Y = roadY = 0;
-                if (schematic3 != null && schematic3.getClipboard().getDimensions().getY() != 256
+            if (schematic1.getClipboard().getDimensions().getY() == worldHeight) {
+                SCHEM_Y = roadY = getMinGenHeight();
+                if (schematic3 != null && schematic3.getClipboard().getDimensions().getY() != worldHeight
                         && !Settings.Schematics.PASTE_ON_TOP) {
                     plotY = PLOT_HEIGHT;
                 }
             } else if (!Settings.Schematics.PASTE_ROAD_ON_TOP) {
                 SCHEM_Y = roadY = getMinBuildHeight();
-                if (schematic3 != null && schematic3.getClipboard().getDimensions().getY() != 256
+                if (schematic3 != null && schematic3.getClipboard().getDimensions().getY() != worldHeight
                         && !Settings.Schematics.PASTE_ON_TOP) {
                     plotY = PLOT_HEIGHT;
                 }
@@ -428,7 +432,10 @@ public class HybridPlotWorld extends ClassicPlotWorld {
         int pair = MathMan.pair(x, z);
         BaseBlock[] existing = this.G_SCH.computeIfAbsent(pair, k -> new BaseBlock[height]);
         if (y >= height) {
-            LOGGER.error("Error adding overlay block. `y > height`");
+            if (y != lastOverlayHeightError) {
+                lastOverlayHeightError = y;
+                LOGGER.error(String.format("Error adding overlay block. `y > height`. y=%s, height=%s", y, height));
+            }
             return;
         }
         existing[y] = id;

Core/src/main/java/com/plotsquared/core/generator/HybridUtils.java

@@ -65,6 +65,7 @@ import com.sk89q.worldedit.world.block.BlockTypes;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.checkerframework.checker.nullness.qual.NonNull;
+import org.checkerframework.checker.nullness.qual.Nullable;
 
 import java.io.File;
 import java.util.ArrayDeque;
@@ -73,6 +74,7 @@ import java.util.Arrays;
 import java.util.Collections;
 import java.util.HashSet;
 import java.util.Iterator;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.atomic.AtomicBoolean;
@@ -85,7 +87,9 @@ public class HybridUtils {
     public static HybridUtils manager;
     public static Set<BlockVector2> regions;
     public static int height;
-    public static Set<BlockVector2> chunks = new HashSet<>();
+    // Use ordered for reasonable chunk loading order to reduce paper unloading neighbour chunks and then us attempting to load
+    // them again, causing errors
+    public static Set<BlockVector2> chunks = new LinkedHashSet<>();
     public static PlotArea area;
     public static boolean UPDATE = false;
 
@@ -145,6 +149,8 @@ public class HybridUtils {
             final int ctz = tz >> 4;
             final int width = tx - bx + 1;
             final int length = tz - bz + 1;
+            final int height = area.getMaxGenHeight() - area.getMinGenHeight() + 1;
+            final int minHeight = area.getMinGenHeight();
 
             final PlotArea area = this.plotAreaManager.getPlotArea(world, null);
 
@@ -157,7 +163,7 @@ public class HybridUtils {
 
             final BlockState airBlock = BlockTypes.AIR.getDefaultState();
             final BlockState[][][] oldBlocks = chunk.getBlocks();
-            final BlockState[][][] newBlocks = new BlockState[256][width][length];
+            final BlockState[][][] newBlocks = new BlockState[height][width][length];
             for (final BlockState[][] newBlock : newBlocks) {
                 for (final BlockState[] blockStates : newBlock) {
                     Arrays.fill(blockStates, airBlock);
@@ -211,11 +217,12 @@ public class HybridUtils {
                     int xx = chunkBlockX + x;
                     for (int z = minZ; z <= maxZ; z++) {
                         int zz = chunkBlockZ + z;
-                        for (int y = 0; y < 256; y++) {
+                        for (int yIndex = 0; yIndex < height; yIndex++) {
+                            int y = yIndex + minHeight;
                             BlockState block = queue.getBlock(xx, y, zz);
                             int xr = xb + x;
                             int zr = zb + z;
-                            newBlocks[y][xr][zr] = block;
+                            newBlocks[yIndex][xr][zr] = block;
                         }
                     }
                 }
@@ -232,10 +239,10 @@ public class HybridUtils {
                 for (int x = 0; x < width; x++) {
                     for (int z = 0; z < length; z++) {
                         Set<BlockType> types = new HashSet<>();
-                        for (int y = 0; y < 256; y++) {
-                            BlockState old = oldBlocks[y][x][z];
+                        for (int yIndex = 0; yIndex < height; yIndex++) {
+                            BlockState old = oldBlocks[yIndex][x][z];
                             try {
-                                BlockState now = newBlocks[y][x][z];
+                                BlockState now = newBlocks[yIndex][x][z];
                                 if (!old.equals(now)) {
                                     changes[i]++;
                                 }
@@ -244,23 +251,23 @@ public class HybridUtils {
                                 } else {
                                     // check vertices
                                     // modifications_adjacent
-                                    if (x > 0 && z > 0 && y > 0 && x < width - 1 && z < length - 1 && y < 255) {
-                                        if (newBlocks[y - 1][x][z].getBlockType().getMaterial().isAir()) {
+                                    if (x > 0 && z > 0 && yIndex > 0 && x < width - 1 && z < length - 1 && yIndex < (height - 1)) {
+                                        if (newBlocks[yIndex - 1][x][z].getBlockType().getMaterial().isAir()) {
                                             faces[i]++;
                                         }
-                                        if (newBlocks[y][x - 1][z].getBlockType().getMaterial().isAir()) {
+                                        if (newBlocks[yIndex][x - 1][z].getBlockType().getMaterial().isAir()) {
                                             faces[i]++;
                                         }
-                                        if (newBlocks[y][x][z - 1].getBlockType().getMaterial().isAir()) {
+                                        if (newBlocks[yIndex][x][z - 1].getBlockType().getMaterial().isAir()) {
                                             faces[i]++;
                                         }
-                                        if (newBlocks[y + 1][x][z].getBlockType().getMaterial().isAir()) {
+                                        if (newBlocks[yIndex + 1][x][z].getBlockType().getMaterial().isAir()) {
                                             faces[i]++;
                                         }
-                                        if (newBlocks[y][x + 1][z].getBlockType().getMaterial().isAir()) {
+                                        if (newBlocks[yIndex][x + 1][z].getBlockType().getMaterial().isAir()) {
                                             faces[i]++;
                                         }
-                                        if (newBlocks[y][x][z + 1].getBlockType().getMaterial().isAir()) {
+                                        if (newBlocks[yIndex][x][z + 1].getBlockType().getMaterial().isAir()) {
                                             faces[i]++;
                                         }
                                     }
@@ -408,7 +415,7 @@ public class HybridUtils {
         }
         HybridUtils.UPDATE = true;
         Set<BlockVector2> regions = this.worldUtil.getChunkChunks(area.getWorldName());
-        return scheduleRoadUpdate(area, regions, extend, new HashSet<>());
+        return scheduleRoadUpdate(area, regions, extend, new LinkedHashSet<>());
     }
 
     public boolean scheduleSingleRegionRoadUpdate(Plot plot, int extend) {
@@ -418,7 +425,7 @@ public class HybridUtils {
         HybridUtils.UPDATE = true;
         Set<BlockVector2> regions = new HashSet<>();
         regions.add(RegionManager.getRegion(plot.getCenterSynchronous()));
-        return scheduleRoadUpdate(plot.getArea(), regions, extend, new HashSet<>());
+        return scheduleRoadUpdate(plot.getArea(), regions, extend, new LinkedHashSet<>());
     }
 
     public boolean scheduleRoadUpdate(
@@ -431,26 +438,29 @@ public class HybridUtils {
         HybridUtils.area = area;
         HybridUtils.height = extend;
         HybridUtils.chunks = chunks;
+        final int initial = 1024 * regions.size() + chunks.size();
         final AtomicInteger count = new AtomicInteger(0);
         TaskManager.runTask(new Runnable() {
             @Override
             public void run() {
                 if (!UPDATE) {
                     Iterator<BlockVector2> iter = chunks.iterator();
+                    QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
                     while (iter.hasNext()) {
                         BlockVector2 chunk = iter.next();
                         iter.remove();
-                        boolean regenedRoad = regenerateRoad(area, chunk, extend);
+                        boolean regenedRoad = regenerateRoad(area, chunk, extend, queue);
                         if (!regenedRoad) {
-                            LOGGER.info("Failed to regenerate roads");
+                            LOGGER.info("Failed to regenerate roads in chunk {}", chunk);
                         }
                     }
+                    queue.enqueue();
                     LOGGER.info("Cancelled road task");
                     return;
                 }
                 count.incrementAndGet();
-                if (count.intValue() % 20 == 0) {
-                    LOGGER.info("Progress: {}%", 100 * (2048 - chunks.size()) / 2048);
+                if (count.intValue() % 10 == 0) {
+                    LOGGER.info("Progress: {}%", 100 * (initial - (chunks.size() + 1024 * regions.size())) / initial);
                 }
                 if (HybridUtils.regions.isEmpty() && chunks.isEmpty()) {
                     regeneratePlotWalls(area);
@@ -462,7 +472,7 @@ public class HybridUtils {
                     final Runnable task = this;
                     TaskManager.runTaskAsync(() -> {
                         try {
-                            if (chunks.size() < 1024) {
+                            if (chunks.size() < 64) {
                                 if (!HybridUtils.regions.isEmpty()) {
                                     Iterator<BlockVector2> iterator = HybridUtils.regions.iterator();
                                     BlockVector2 loc = iterator.next();
@@ -475,18 +485,35 @@ public class HybridUtils {
                             }
                             if (!chunks.isEmpty()) {
                                 TaskManager.getPlatformImplementation().sync(() -> {
-                                    long start = System.currentTimeMillis();
                                     Iterator<BlockVector2> iterator = chunks.iterator();
-                                    while (System.currentTimeMillis() - start < 20 && !chunks.isEmpty()) {
+                                    if (chunks.size() >= 32) {
+                                        QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
+                                        for (int i = 0; i < 32; i++) {
+                                            final BlockVector2 chunk = iterator.next();
+                                            iterator.remove();
+                                            boolean regenedRoads = regenerateRoad(area, chunk, extend, queue);
+                                            if (!regenedRoads) {
+                                                LOGGER.info("Failed to regenerate the road in chunk {}", chunk);
+                                            }
+                                        }
+                                        queue.setCompleteTask(task);
+                                        queue.enqueue();
+                                        return null;
+                                    }
+                                    QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
+                                    while (!chunks.isEmpty()) {
                                         final BlockVector2 chunk = iterator.next();
                                         iterator.remove();
-                                        boolean regenedRoads = regenerateRoad(area, chunk, extend);
+                                        boolean regenedRoads = regenerateRoad(area, chunk, extend, queue);
                                         if (!regenedRoads) {
-                                            LOGGER.info("Failed to regenerate road");
+                                            LOGGER.info("Failed to regenerate road in chunk {}", chunk);
                                         }
                                     }
+                                    queue.setCompleteTask(task);
+                                    queue.enqueue();
                                     return null;
                                 });
+                                return;
                             }
                         } catch (Exception e) {
                             e.printStackTrace();
@@ -514,7 +541,6 @@ public class HybridUtils {
         Location bot = plot.getBottomAbs().subtract(1, 0, 1);
         Location top = plot.getTopAbs();
         final HybridPlotWorld plotworld = (HybridPlotWorld) plot.getArea();
-        PlotManager plotManager = plotworld.getPlotManager();
         // Do not use plotworld#schematicStartHeight() here as we want to restore the pre 6.1.4 way of doing it if
         //  USE_WALL_IN_ROAD_SCHEM_HEIGHT is false
         int schemY = Settings.Schematics.USE_WALL_IN_ROAD_SCHEM_HEIGHT ?
@@ -524,10 +550,10 @@ public class HybridUtils {
         int sy = Settings.Schematics.PASTE_ROAD_ON_TOP ? schemY : plot.getArea().getMinBuildHeight();
         int ex = bot.getX();
         int ez = top.getZ();
-        int ey = get_ey(plotManager, queue, sx, ex, sz, ez, sy);
+        int ey = get_ey(plotworld, queue, sx, ex, sz, ez, sy);
         int bz = sz - plotworld.ROAD_WIDTH;
         int tz = sz - 1;
-        int ty = get_ey(plotManager, queue, sx, ex, bz, tz, sy);
+        int ty = get_ey(plotworld, queue, sx, ex, bz, tz, sy);
 
         final Set<CuboidRegion> sideRoad = Collections.singleton(RegionUtil.createRegion(sx, ex, sy, ey, sz, ez));
         final Set<CuboidRegion> intersection = Collections.singleton(RegionUtil.createRegion(sx, ex, sy, ty, bz, tz));
@@ -553,11 +579,11 @@ public class HybridUtils {
         return true;
     }
 
-    public int get_ey(final PlotManager pm, QueueCoordinator queue, int sx, int ex, int sz, int ez, int sy) {
+    private int get_ey(final HybridPlotWorld hpw, QueueCoordinator queue, int sx, int ex, int sz, int ez, int sy) {
         int ey = sy;
         for (int x = sx; x <= ex; x++) {
             for (int z = sz; z <= ez; z++) {
-                for (int y = sy; y <= pm.getWorldHeight(); y++) {
+                for (int y = sy; y <= hpw.getMaxGenHeight(); y++) {
                     if (y > ey) {
                         BlockState block = queue.getBlock(x, y, z);
                         if (!block.getBlockType().getMaterial().isAir()) {
@@ -570,7 +596,36 @@ public class HybridUtils {
         return ey;
     }
 
+    /**
+     * Regenerate the road in a chunk in a plot area.
+     *
+     * @param area   Plot area to regenerate road for
+     * @param chunk  Chunk location to regenerate
+     * @param extend How far to extend setting air above the road
+     * @return if successful
+     * @deprecated use {@link HybridUtils#regenerateRoad(PlotArea, BlockVector2, int, QueueCoordinator)}
+     */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     public boolean regenerateRoad(final PlotArea area, final BlockVector2 chunk, int extend) {
+        return regenerateRoad(area, chunk, extend, null);
+    }
+
+    /**
+     * Regenerate the road in a chunk in a plot area.
+     *
+     * @param area             Plot area to regenerate road for
+     * @param chunk            Chunk location to regenerate
+     * @param extend           How far to extend setting air above the road
+     * @param queueCoordinator {@link QueueCoordinator} to use to set the blocks. Null if one should be created and enqueued
+     * @return if successful
+     * @since 6.6.0
+     */
+    public boolean regenerateRoad(
+            final PlotArea area,
+            final BlockVector2 chunk,
+            int extend,
+            @Nullable QueueCoordinator queueCoordinator
+    ) {
         int x = chunk.getX() << 4;
         int z = chunk.getZ() << 4;
         int ex = x + 15;
@@ -596,92 +651,100 @@ public class HybridUtils {
         z -= plotWorld.ROAD_OFFSET_Z;
         final int finalX = x;
         final int finalZ = z;
-        QueueCoordinator queue = this.blockQueue.getNewQueue(worldUtil.getWeWorld(plotWorld.getWorldName()));
+        final boolean enqueue;
+        final QueueCoordinator queue;
+        if (queueCoordinator == null) {
+            queue = this.blockQueue.getNewQueue(worldUtil.getWeWorld(plotWorld.getWorldName()));
+            enqueue = true;
+        } else {
+            queue = queueCoordinator;
+            enqueue = false;
+        }
         if (id1 == null || id2 == null || id1 != id2) {
-            this.chunkManager.loadChunk(area.getWorldName(), chunk, false).thenRun(() -> {
-                if (id1 != null) {
-                    Plot p1 = area.getPlotAbs(id1);
-                    if (p1 != null && p1.hasOwner() && p1.isMerged()) {
-                        toCheck.set(true);
-                    }
+            if (id1 != null) {
+                Plot p1 = area.getPlotAbs(id1);
+                if (p1 != null && p1.hasOwner() && p1.isMerged()) {
+                    toCheck.set(true);
                 }
-                if (id2 != null && !toCheck.get()) {
-                    Plot p2 = area.getPlotAbs(id2);
-                    if (p2 != null && p2.hasOwner() && p2.isMerged()) {
-                        toCheck.set(true);
-                    }
+            }
+            if (id2 != null && !toCheck.get()) {
+                Plot p2 = area.getPlotAbs(id2);
+                if (p2 != null && p2.hasOwner() && p2.isMerged()) {
+                    toCheck.set(true);
                 }
-                int size = plotWorld.SIZE;
-                for (int X = 0; X < 16; X++) {
-                    short absX = (short) ((finalX + X) % size);
-                    for (int Z = 0; Z < 16; Z++) {
-                        short absZ = (short) ((finalZ + Z) % size);
-                        if (absX < 0) {
-                            absX += size;
-                        }
-                        if (absZ < 0) {
-                            absZ += size;
-                        }
-                        boolean condition;
-                        if (toCheck.get()) {
-                            condition = manager.getPlotId(
-                                    finalX + X + plotWorld.ROAD_OFFSET_X,
-                                    1,
-                                    finalZ + Z + plotWorld.ROAD_OFFSET_Z
-                            ) == null;
-                        } else {
-                            boolean gx = absX > plotWorld.PATH_WIDTH_LOWER;
-                            boolean gz = absZ > plotWorld.PATH_WIDTH_LOWER;
-                            boolean lx = absX < plotWorld.PATH_WIDTH_UPPER;
-                            boolean lz = absZ < plotWorld.PATH_WIDTH_UPPER;
-                            condition = !gx || !gz || !lx || !lz;
-                        }
-                        if (condition) {
-                            BaseBlock[] blocks = plotWorld.G_SCH.get(MathMan.pair(absX, absZ));
-                            int minY = Settings.Schematics.PASTE_ROAD_ON_TOP ? plotWorld.SCHEM_Y : 1;
-                            int maxY = Math.max(extend, blocks.length);
-                            for (int y = 0; y < maxY; y++) {
-                                if (y > blocks.length - 1) {
+            }
+            short size = plotWorld.SIZE;
+            for (int X = 0; X < 16; X++) {
+                short absX = (short) ((finalX + X) % size);
+                for (int Z = 0; Z < 16; Z++) {
+                    short absZ = (short) ((finalZ + Z) % size);
+                    if (absX < 0) {
+                        absX += size;
+                    }
+                    if (absZ < 0) {
+                        absZ += size;
+                    }
+                    boolean condition;
+                    if (toCheck.get()) {
+                        condition = manager.getPlotId(
+                                finalX + X + plotWorld.ROAD_OFFSET_X,
+                                1,
+                                finalZ + Z + plotWorld.ROAD_OFFSET_Z
+                        ) == null;
+                    } else {
+                        boolean gx = absX > plotWorld.PATH_WIDTH_LOWER;
+                        boolean gz = absZ > plotWorld.PATH_WIDTH_LOWER;
+                        boolean lx = absX < plotWorld.PATH_WIDTH_UPPER;
+                        boolean lz = absZ < plotWorld.PATH_WIDTH_UPPER;
+                        condition = !gx || !gz || !lx || !lz;
+                    }
+                    if (condition) {
+                        BaseBlock[] blocks = plotWorld.G_SCH.get(MathMan.pair(absX, absZ));
+                        int minY = Settings.Schematics.PASTE_ROAD_ON_TOP ? plotWorld.SCHEM_Y : area.getMinGenHeight() + 1;
+                        int maxDy = Math.max(extend, blocks.length);
+                        for (int dy = 0; dy < maxDy; dy++) {
+                            if (dy > blocks.length - 1) {
+                                queue.setBlock(
+                                        finalX + X + plotWorld.ROAD_OFFSET_X,
+                                        minY + dy,
+                                        finalZ + Z + plotWorld.ROAD_OFFSET_Z,
+                                        WEExtent.AIRBASE
+                                );
+                            } else {
+                                BaseBlock block = blocks[dy];
+                                if (block != null) {
                                     queue.setBlock(
                                             finalX + X + plotWorld.ROAD_OFFSET_X,
-                                            minY + y,
+                                            minY + dy,
+                                            finalZ + Z + plotWorld.ROAD_OFFSET_Z,
+                                            block
+                                    );
+                                } else {
+                                    queue.setBlock(
+                                            finalX + X + plotWorld.ROAD_OFFSET_X,
+                                            minY + dy,
                                             finalZ + Z + plotWorld.ROAD_OFFSET_Z,
                                             WEExtent.AIRBASE
                                     );
-                                } else {
-                                    BaseBlock block = blocks[y];
-                                    if (block != null) {
-                                        queue.setBlock(
-                                                finalX + X + plotWorld.ROAD_OFFSET_X,
-                                                minY + y,
-                                                finalZ + Z + plotWorld.ROAD_OFFSET_Z,
-                                                block
-                                        );
-                                    } else {
-                                        queue.setBlock(
-                                                finalX + X + plotWorld.ROAD_OFFSET_X,
-                                                minY + y,
-                                                finalZ + Z + plotWorld.ROAD_OFFSET_Z,
-                                                WEExtent.AIRBASE
-                                        );
-                                    }
                                 }
                             }
-                            BiomeType biome = plotWorld.G_SCH_B.get(MathMan.pair(absX, absZ));
-                            if (biome != null) {
-                                queue.setBiome(finalX + X + plotWorld.ROAD_OFFSET_X, finalZ + Z + plotWorld.ROAD_OFFSET_Z, biome);
-                            } else {
-                                queue.setBiome(
-                                        finalX + X + plotWorld.ROAD_OFFSET_X,
-                                        finalZ + Z + plotWorld.ROAD_OFFSET_Z,
-                                        plotWorld.getPlotBiome()
-                                );
-                            }
+                        }
+                        BiomeType biome = plotWorld.G_SCH_B.get(MathMan.pair(absX, absZ));
+                        if (biome != null) {
+                            queue.setBiome(finalX + X + plotWorld.ROAD_OFFSET_X, finalZ + Z + plotWorld.ROAD_OFFSET_Z, biome);
+                        } else {
+                            queue.setBiome(
+                                    finalX + X + plotWorld.ROAD_OFFSET_X,
+                                    finalZ + Z + plotWorld.ROAD_OFFSET_Z,
+                                    plotWorld.getPlotBiome()
+                            );
                         }
                     }
                 }
+            }
+            if (enqueue) {
                 queue.enqueue();
-            });
+            }
             return true;
         }
         return false;

Core/src/main/java/com/plotsquared/core/generator/SquarePlotManager.java

@@ -96,7 +96,7 @@ public abstract class SquarePlotManager extends GridPlotManager {
                 .floor(squarePlotWorld.ROAD_WIDTH / 2) - 1;
         int z = (squarePlotWorld.ROAD_OFFSET_Z + (pz * (squarePlotWorld.ROAD_WIDTH + squarePlotWorld.PLOT_WIDTH))) - (int) Math
                 .floor(squarePlotWorld.ROAD_WIDTH / 2) - 1;
-        return Location.at(squarePlotWorld.getWorldName(), x, Math.min(getWorldHeight(), 255), z);
+        return Location.at(squarePlotWorld.getWorldName(), x, squarePlotWorld.getMaxGenHeight(), z);
     }
 
     @Override
@@ -260,7 +260,7 @@ public abstract class SquarePlotManager extends GridPlotManager {
                 - (int) Math.floor(squarePlotWorld.ROAD_WIDTH / 2);
         int z = (squarePlotWorld.ROAD_OFFSET_Z + (pz * (squarePlotWorld.ROAD_WIDTH + squarePlotWorld.PLOT_WIDTH))) - squarePlotWorld.PLOT_WIDTH
                 - (int) Math.floor(squarePlotWorld.ROAD_WIDTH / 2);
-        return Location.at(squarePlotWorld.getWorldName(), x, squarePlotWorld.getMinBuildHeight(), z);
+        return Location.at(squarePlotWorld.getWorldName(), x, squarePlotWorld.getMinGenHeight(), z);
     }
 
 }

Core/src/main/java/com/plotsquared/core/listener/PlotListener.java

@@ -309,7 +309,7 @@ public class PlotListener {
                         }
                         if ((lastPlot != null) && plot.getId().equals(lastPlot.getId()) && plot.hasOwner()) {
                             final UUID plotOwner = plot.getOwnerAbs();
-                            String owner = PlayerManager.resolveName(plotOwner, false).getComponent(player);
+                            String owner = PlayerManager.resolveName(plotOwner, true).getComponent(player);
                             Caption header = fromFlag ? StaticCaption.of(title) : TranslatableCaption.of("titles" +
                                     ".title_entered_plot");
                             Caption subHeader = fromFlag ? StaticCaption.of(subtitle) : TranslatableCaption.of("titles" +

Core/src/main/java/com/plotsquared/core/listener/WESubscriber.java

@@ -35,6 +35,7 @@ import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.WEManager;
 import com.plotsquared.core.util.WorldUtil;
+import com.sk89q.worldedit.EditSession;
 import com.sk89q.worldedit.WorldEdit;
 import com.sk89q.worldedit.entity.Player;
 import com.sk89q.worldedit.event.extent.EditSessionEvent;
@@ -67,6 +68,9 @@ public class WESubscriber {
             WorldEdit.getInstance().getEventBus().unregister(this);
             return;
         }
+        if (event.getStage() != EditSession.Stage.BEFORE_HISTORY) {
+            return;
+        }
         World worldObj = event.getWorld();
         if (worldObj == null) {
             return;

Core/src/main/java/com/plotsquared/core/location/World.java

@@ -58,6 +58,21 @@ public interface World<T> {
      */
     @NonNull String getName();
 
+    /**
+     * Get the min world height. Inclusive.
+     *
+     * @since 6.6.0
+     */
+    int getMinHeight();
+
+
+    /**
+     * Get the max world height. Inclusive.
+     *
+     * @since 6.6.0
+     */
+    int getMaxHeight();
+
     class NullWorld<T> implements World<T> {
 
         private NullWorld() {
@@ -74,6 +89,16 @@ public interface World<T> {
             return "";
         }
 
+        @Override
+        public int getMinHeight() {
+            return 0;
+        }
+
+        @Override
+        public int getMaxHeight() {
+            return 0;
+        }
+
         @Override
         public boolean equals(final Object obj) {
             return obj instanceof NullWorld;

Core/src/main/java/com/plotsquared/core/plot/Plot.java

@@ -122,7 +122,7 @@ import static com.plotsquared.core.util.entity.EntityCategories.CAP_VEHICLE;
  */
 public class Plot {
 
-
+    @Deprecated(forRemoval = true, since = "6.6.0")
     public static final int MAX_HEIGHT = 256;
 
     private static final Logger LOGGER = LogManager.getLogger("PlotSquared/" + Plot.class.getSimpleName());
@@ -1371,7 +1371,7 @@ public class Plot {
         int z = largest.getMinimumPoint().getZ() - 1;
         PlotManager manager = getManager();
         int y = isLoaded() ? this.worldUtil.getHighestBlockSynchronous(getWorldName(), x, z) : 62;
-        if (area.allowSigns() && (y <= 0 || y >= 255)) {
+        if (area.allowSigns() && (y <= area.getMinGenHeight() || y >= area.getMaxGenHeight())) {
             y = Math.max(y, manager.getSignLoc(this).getY() - 1);
         }
         return Location.at(getWorldName(), x, y + 1, z);
@@ -1387,7 +1387,7 @@ public class Plot {
         if (isLoaded()) {
             this.worldUtil.getHighestBlock(getWorldName(), x, z, y -> {
                 int height = y;
-                if (area.allowSigns() && (y <= 0 || y >= 255)) {
+                if (area.allowSigns() && (y <= area.getMinGenHeight() || y >= area.getMaxGenHeight())) {
                     height = Math.max(y, manager.getSignLoc(this).getY() - 1);
                 }
                 result.accept(Location.at(getWorldName(), x, height + 1, z));
@@ -1465,7 +1465,7 @@ public class Plot {
                     .at(
                             bottom.getWorldName(),
                             bottom.getX() + home.getX(),
-                            bottom.getY() + home.getY(),
+                            home.getY(), // y is absolute
                             bottom.getZ() + home.getZ(),
                             home.getYaw(),
                             home.getPitch()
@@ -1619,8 +1619,8 @@ public class Plot {
     public double getVolume() {
         double count = 0;
         for (CuboidRegion region : getRegions()) {
-            count += (region.getMaximumPoint().getX() - (double) region.getMinimumPoint().getX() + 1) * (
-                    region.getMaximumPoint().getZ() - (double) region.getMinimumPoint().getZ() + 1) * MAX_HEIGHT;
+            // CuboidRegion#getArea is deprecated and we want to ensure use of correct height
+            count += region.getLength() * region.getWidth() * (area.getMaxGenHeight() - area.getMinGenHeight() + 1);
         }
         return count;
     }
@@ -1738,7 +1738,6 @@ public class Plot {
             area.addPlot(this);
             updateWorldBorder();
         }
-        this.getPlotModificationManager().setSign(player.getName());
         player.sendMessage(TranslatableCaption.of("working.claimed"), Template.of("plot", this.getId().toString()));
         if (teleport) {
             if (!auto && Settings.Teleport.ON_CLAIM) {
@@ -1786,6 +1785,7 @@ public class Plot {
             );
         }
         plotworld.getPlotManager().claimPlot(this, null);
+        this.getPlotModificationManager().setSign(player.getName());
         return true;
     }
 
@@ -2438,8 +2438,8 @@ public class Plot {
             return regions_cache;
         }
         if (!this.isMerged()) {
-            Location pos1 = this.getBottomAbs();
-            Location pos2 = this.getTopAbs();
+            Location pos1 = this.getBottomAbs().withY(getArea().getMinBuildHeight());
+            Location pos2 = this.getTopAbs().withY(getArea().getMaxBuildHeight());
             connected_cache = Sets.newHashSet(this);
             CuboidRegion rg = new CuboidRegion(pos1.getBlockVector3(), pos2.getBlockVector3());
             regions_cache = Collections.singleton(rg);

Core/src/main/java/com/plotsquared/core/plot/PlotArea.java

@@ -34,8 +34,6 @@ import com.plotsquared.core.configuration.ConfigurationNode;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.ConfigurationUtil;
 import com.plotsquared.core.configuration.Settings;
-import com.plotsquared.core.configuration.caption.CaptionUtility;
-import com.plotsquared.core.configuration.caption.LocaleHolder;
 import com.plotsquared.core.configuration.caption.TranslatableCaption;
 import com.plotsquared.core.configuration.file.YamlConfiguration;
 import com.plotsquared.core.generator.GridPlotWorld;
@@ -54,7 +52,6 @@ import com.plotsquared.core.plot.flag.FlagParseException;
 import com.plotsquared.core.plot.flag.GlobalFlagContainer;
 import com.plotsquared.core.plot.flag.PlotFlag;
 import com.plotsquared.core.plot.flag.implementations.DoneFlag;
-import com.plotsquared.core.plot.flag.types.DoubleFlag;
 import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.queue.QueueCoordinator;
 import com.plotsquared.core.util.MathMan;
@@ -144,8 +141,10 @@ public abstract class PlotArea {
     private boolean homeAllowNonmember = false;
     private BlockLoc nonmemberHome;
     private BlockLoc defaultHome;
-    private int maxBuildHeight = 256;
-    private int minBuildHeight = 1;
+    private int maxBuildHeight = PlotSquared.platform().versionMaxHeight() + 1; // Exclusive
+    private int minBuildHeight = PlotSquared.platform().versionMinHeight() + 1; // Inclusive
+    private int maxGenHeight = PlotSquared.platform().versionMaxHeight(); // Inclusive
+    private int minGenHeight = PlotSquared.platform().versionMinHeight(); // Inclusive
     private GameMode gameMode = GameModes.CREATIVE;
     private Map<String, PlotExpression> prices = new HashMap<>();
     private List<String> schematics = new ArrayList<>();
@@ -361,6 +360,8 @@ public abstract class PlotArea {
         this.worldBorder = config.getBoolean("world.border");
         this.maxBuildHeight = config.getInt("world.max_height");
         this.minBuildHeight = config.getInt("world.min_height");
+        this.minGenHeight = config.getInt("world.min_gen_height");
+        this.maxGenHeight = config.getInt("world.max_gen_height");
 
         switch (config.getString("world.gamemode").toLowerCase()) {
             case "creative", "c", "1" -> this.gameMode = GameModes.CREATIVE;
@@ -484,6 +485,8 @@ public abstract class PlotArea {
         options.put("home.nonmembers", position);
         options.put("world.max_height", this.getMaxBuildHeight());
         options.put("world.min_height", this.getMinBuildHeight());
+        options.put("world.min_gen_height", this.getMinGenHeight());
+        options.put("world.max_gen_height", this.getMaxGenHeight());
         options.put("world.gamemode", this.getGameMode().getName().toLowerCase());
         options.put("road.flags.default", null);
 
@@ -1078,8 +1081,8 @@ public abstract class PlotArea {
                     BlockVector2 pos1 = BlockVector2.at(value.getP1().getX(), value.getP1().getY());
                     BlockVector2 pos2 = BlockVector2.at(value.getP2().getX(), value.getP2().getY());
                     return new CuboidRegion(
-                            pos1.toBlockVector3(),
-                            pos2.toBlockVector3(Plot.MAX_HEIGHT - 1)
+                            pos1.toBlockVector3(getMinGenHeight()),
+                            pos2.toBlockVector3(getMaxGenHeight())
                     );
                 }
             };
@@ -1361,14 +1364,38 @@ public abstract class PlotArea {
         this.defaultHome = defaultHome;
     }
 
+    /**
+     * Get the maximum height players may build in. Exclusive.
+     */
     public int getMaxBuildHeight() {
         return this.maxBuildHeight;
     }
 
+    /**
+     * Get the minimum height players may build in. Inclusive.
+     */
     public int getMinBuildHeight() {
         return this.minBuildHeight;
     }
 
+    /**
+     * Get the min height from which P2 will generate blocks. Inclusive.
+     *
+     * @since 6.6.0
+     */
+    public int getMinGenHeight() {
+        return this.minGenHeight;
+    }
+
+    /**
+     * Get the max height to which P2 will generate blocks. Inclusive.
+     *
+     * @since 6.6.0
+     */
+    public int getMaxGenHeight() {
+        return this.maxGenHeight;
+    }
+
     public GameMode getGameMode() {
         return this.gameMode;
     }

Core/src/main/java/com/plotsquared/core/plot/PlotCluster.java

@@ -89,11 +89,17 @@ public class PlotCluster {
     }
 
     private void setRegion() {
-        this.region = RegionUtil.createRegion(this.pos1.getX(), this.pos2.getX(),
+        this.region = RegionUtil.createRegion(this.pos1.getX(), this.pos2.getX(), 0, 0,
                 this.pos1.getY(), this.pos2.getY()
         );
     }
 
+    /**
+     * Returns a region of PlotIDs
+     *
+     * @deprecated - returns region of IDs, not of actual blocks.
+     */
+    @Deprecated
     public CuboidRegion getRegion() {
         return this.region;
     }
@@ -165,7 +171,7 @@ public class PlotCluster {
         Consumer<Location> locationConsumer = toReturn ->
                 PlotSquared.platform().worldUtil().getHighestBlock(this.area.getWorldName(), toReturn.getX(), toReturn.getZ(),
                         highest -> {
-                            if (highest == 0) {
+                            if (highest <= area.getMinBuildHeight()) {
                                 highest = 63;
                             }
                             if (highest > toReturn.getY()) {
@@ -175,12 +181,12 @@ public class PlotCluster {
                             }
                         }
                 );
-        if (home.getY() == 0) {
+        if (home.getY() == Integer.MIN_VALUE) {
             // default pos
             Plot center = getCenterPlot();
             center.getHome(location -> {
                 Location toReturn = location;
-                if (toReturn.getY() == 0) {
+                if (toReturn.getY() <= area.getMinBuildHeight()) {
                     PlotManager manager = this.area.getPlotManager();
                     Location locationSign = manager.getSignLoc(center);
                     toReturn = toReturn.withY(locationSign.getY());

Core/src/main/java/com/plotsquared/core/plot/PlotModificationManager.java

@@ -69,8 +69,6 @@ import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.atomic.AtomicBoolean;
 import java.util.stream.Collectors;
 
-import static com.plotsquared.core.plot.Plot.MAX_HEIGHT;
-
 /**
  * Manager that handles {@link Plot} modifications
  */
@@ -311,7 +309,7 @@ public final class PlotModificationManager {
                     return;
                 }
                 CuboidRegion region = regions.poll();
-                PlotSquared.platform().regionManager().setBiome(region, extendBiome, biome, plot.getWorldName(), this);
+                PlotSquared.platform().regionManager().setBiome(region, extendBiome, biome, plot.getArea(), this);
             }
         };
         run.run();
@@ -335,10 +333,9 @@ public final class PlotModificationManager {
             ids.add(current.getId());
         }
         this.plot.clearRatings();
-        QueueCoordinator queue = null;
+        QueueCoordinator queue = this.plot.getArea().getQueue();
         if (createSign) {
             this.removeSign();
-            queue = this.plot.getArea().getQueue();
         }
         PlotManager manager = this.plot.getArea().getPlotManager();
         if (createRoad) {
@@ -527,28 +524,6 @@ public final class PlotModificationManager {
         return false;
     }
 
-    /**
-     * Remove the south road section of a plot<br>
-     * - Used when a plot is merged<br>
-     *
-     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
-     *              otherwise writes to the queue but does not enqueue.
-     */
-    public void removeRoadSouth(final @Nullable QueueCoordinator queue) {
-        if (this.plot.getArea().getType() != PlotAreaType.NORMAL && this.plot
-                .getArea()
-                .getTerrain() == PlotAreaTerrainType.ROAD) {
-            Plot other = this.plot.getRelative(Direction.SOUTH);
-            Location bot = other.getBottomAbs();
-            Location top = this.plot.getTopAbs();
-            Location pos1 = Location.at(this.plot.getWorldName(), bot.getX(), 0, top.getZ());
-            Location pos2 = Location.at(this.plot.getWorldName(), top.getX(), MAX_HEIGHT, bot.getZ());
-            PlotSquared.platform().regionManager().regenerateRegion(pos1, pos2, true, null);
-        } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
-            this.plot.getManager().removeRoadSouth(this.plot, queue);
-        }
-    }
-
     /**
      * Auto merge a plot in a specific direction.
      *
@@ -915,6 +890,28 @@ public final class PlotModificationManager {
         return this.setComponent(component, parsed.toPattern(), actor, queue);
     }
 
+    /**
+     * Remove the south road section of a plot<br>
+     * - Used when a plot is merged<br>
+     *
+     * @param queue Nullable {@link QueueCoordinator}. If null, creates own queue and enqueues,
+     *              otherwise writes to the queue but does not enqueue.
+     */
+    public void removeRoadSouth(final @Nullable QueueCoordinator queue) {
+        if (this.plot.getArea().getType() != PlotAreaType.NORMAL && this.plot
+                .getArea()
+                .getTerrain() == PlotAreaTerrainType.ROAD) {
+            Plot other = this.plot.getRelative(Direction.SOUTH);
+            Location bot = other.getBottomAbs();
+            Location top = this.plot.getTopAbs();
+            Location pos1 = Location.at(this.plot.getWorldName(), bot.getX(), plot.getArea().getMinGenHeight(), top.getZ());
+            Location pos2 = Location.at(this.plot.getWorldName(), top.getX(), plot.getArea().getMaxGenHeight(), bot.getZ());
+            PlotSquared.platform().regionManager().regenerateRegion(pos1, pos2, true, null);
+        } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
+            this.plot.getManager().removeRoadSouth(this.plot, queue);
+        }
+    }
+
     /**
      * Remove the east road section of a plot<br>
      * - Used when a plot is merged<br>
@@ -929,8 +926,8 @@ public final class PlotModificationManager {
             Plot other = this.plot.getRelative(Direction.EAST);
             Location bot = other.getBottomAbs();
             Location top = this.plot.getTopAbs();
-            Location pos1 = Location.at(this.plot.getWorldName(), top.getX(), 0, bot.getZ());
-            Location pos2 = Location.at(this.plot.getWorldName(), bot.getX(), MAX_HEIGHT, top.getZ());
+            Location pos1 = Location.at(this.plot.getWorldName(), top.getX(), plot.getArea().getMinGenHeight(), bot.getZ());
+            Location pos2 = Location.at(this.plot.getWorldName(), bot.getX(), plot.getArea().getMaxGenHeight(), top.getZ());
             PlotSquared.platform().regionManager().regenerateRegion(pos1, pos2, true, null);
         } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
             this.plot.getArea().getPlotManager().removeRoadEast(this.plot, queue);
@@ -948,8 +945,8 @@ public final class PlotModificationManager {
                 .getArea()
                 .getTerrain() == PlotAreaTerrainType.ROAD) {
             Plot other = this.plot.getRelative(1, 1);
-            Location pos1 = this.plot.getTopAbs().add(1, 0, 1).withY(0);
-            Location pos2 = other.getBottomAbs().subtract(1, 0, 1).withY(MAX_HEIGHT);
+            Location pos1 = this.plot.getTopAbs().add(1, 0, 1);
+            Location pos2 = other.getBottomAbs().subtract(1, 0, 1);
             PlotSquared.platform().regionManager().regenerateRegion(pos1, pos2, true, null);
         } else if (this.plot.getArea().getTerrain() != PlotAreaTerrainType.ALL) { // no road generated => no road to remove
             this.plot.getArea().getPlotManager().removeRoadSouthEast(this.plot, queue);

Core/src/main/java/com/plotsquared/core/plot/PlotWorld.java

@@ -105,31 +105,29 @@ public abstract class PlotWorld {
         return this.world;
     }
 
+    @Override
     public boolean equals(final Object o) {
-        if (o == this) {
+        if (this == o) {
             return true;
         }
-        if (!(o instanceof final PlotWorld other)) {
+        if (o == null || getClass() != o.getClass()) {
             return false;
         }
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        final Object this$world = this.getWorld();
-        final Object other$world = other.getWorld();
-        return Objects.equals(this$world, other$world);
+        final PlotWorld plotWorld = (PlotWorld) o;
+        return world.equals(plotWorld.world);
     }
 
+    @Override
+    public int hashCode() {
+        return world.hashCode();
+    }
+
+    /**
+     * @deprecated This method is not meant to be invoked or overridden, with no replacement.
+     */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     protected boolean canEqual(final Object other) {
         return other instanceof PlotWorld;
     }
 
-    public int hashCode() {
-        final int PRIME = 59;
-        int result = 1;
-        final Object $world = this.getWorld();
-        result = result * PRIME + ($world == null ? 43 : $world.hashCode());
-        return result;
-    }
-
 }

Core/src/main/java/com/plotsquared/core/plot/flag/FlagContainer.java

@@ -371,33 +371,31 @@ public class FlagContainer {
         }
     }
 
+    @Override
     public boolean equals(final Object o) {
-        if (o == this) {
+        if (this == o) {
             return true;
         }
-        if (!(o instanceof final FlagContainer other)) {
+        if (o == null || getClass() != o.getClass()) {
             return false;
         }
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        final Object this$flagMap = this.getFlagMap();
-        final Object other$flagMap = other.getFlagMap();
-        return Objects.equals(this$flagMap, other$flagMap);
+        final FlagContainer that = (FlagContainer) o;
+        return flagMap.equals(that.flagMap);
     }
 
+    @Override
+    public int hashCode() {
+        return flagMap.hashCode();
+    }
+
+    /**
+     * @deprecated This method is not meant to be invoked or overridden, with no replacement.
+     */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     protected boolean canEqual(final Object other) {
         return other instanceof FlagContainer;
     }
 
-    public int hashCode() {
-        final int PRIME = 59;
-        int result = 1;
-        final Object $flagMap = this.getFlagMap();
-        result = result * PRIME + ($flagMap == null ? 43 : $flagMap.hashCode());
-        return result;
-    }
-
     /**
      * Update event types used in {@link PlotFlagUpdateHandler}.
      */

Core/src/main/java/com/plotsquared/core/plot/flag/GlobalFlagContainer.java

@@ -93,6 +93,7 @@ import com.plotsquared.core.plot.flag.implementations.PlayerInteractFlag;
 import com.plotsquared.core.plot.flag.implementations.PlotTitleFlag;
 import com.plotsquared.core.plot.flag.implementations.PreventCreativeCopyFlag;
 import com.plotsquared.core.plot.flag.implementations.PriceFlag;
+import com.plotsquared.core.plot.flag.implementations.ProjectilesFlag;
 import com.plotsquared.core.plot.flag.implementations.PveFlag;
 import com.plotsquared.core.plot.flag.implementations.PvpFlag;
 import com.plotsquared.core.plot.flag.implementations.RedstoneFlag;
@@ -198,6 +199,7 @@ public final class GlobalFlagContainer extends FlagContainer {
         this.addFlag(VehicleUseFlag.VEHICLE_USE_FALSE);
         this.addFlag(VillagerInteractFlag.VILLAGER_INTERACT_FALSE);
         this.addFlag(VineGrowFlag.VINE_GROW_TRUE);
+        this.addFlag(ProjectilesFlag.PROJECTILES_FALSE);
 
         // Double flags
         this.addFlag(PriceFlag.PRICE_NOT_BUYABLE);

Core/src/main/java/com/plotsquared/core/plot/flag/PlotFlag.java

@@ -31,6 +31,7 @@ import org.checkerframework.checker.nullness.qual.NonNull;
 
 import java.util.Collection;
 import java.util.Collections;
+import java.util.Objects;
 
 /**
  * A plot flag is any property that can be assigned
@@ -200,34 +201,30 @@ public abstract class PlotFlag<T, F extends PlotFlag<T, F>> {
         return Collections.emptyList();
     }
 
+    @Override
     public boolean equals(final Object o) {
-        if (o == this) {
+        if (this == o) {
             return true;
         }
-        if (!(o instanceof final PlotFlag<?, ?> other)) {
+        if (o == null || getClass() != o.getClass()) {
             return false;
         }
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        final Object this$value = this.getValue();
-        final Object other$value = other.getValue();
-        if (this$value == null ? other$value != null : !this$value.equals(other$value)) {
-            return false;
-        }
-        return true;
+        final PlotFlag<?, ?> plotFlag = (PlotFlag<?, ?>) o;
+        return value.equals(plotFlag.value);
     }
 
+    @Override
+    public int hashCode() {
+        return value.hashCode();
+    }
+
+    /**
+     * @deprecated This method is not meant to be invoked or overridden, with no replacement.
+     */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     protected boolean canEqual(final Object other) {
         return other instanceof PlotFlag;
     }
 
-    public int hashCode() {
-        final int PRIME = 59;
-        int result = 1;
-        final Object $value = this.getValue();
-        result = result * PRIME + ($value == null ? 43 : $value.hashCode());
-        return result;
-    }
 
 }

Core/src/main/java/com/plotsquared/core/plot/flag/implementations/ProjectilesFlag.java

@@ -0,0 +1,46 @@
+/*
+ *       _____  _       _    _____                                _
+ *      |  __ \| |     | |  / ____|                              | |
+ *      | |__) | | ___ | |_| (___   __ _ _   _  __ _ _ __ ___  __| |
+ *      |  ___/| |/ _ \| __|\___ \ / _` | | | |/ _` | '__/ _ \/ _` |
+ *      | |    | | (_) | |_ ____) | (_| | |_| | (_| | | |  __/ (_| |
+ *      |_|    |_|\___/ \__|_____/ \__, |\__,_|\__,_|_|  \___|\__,_|
+ *                                    | |
+ *                                    |_|
+ *            PlotSquared plot management system for Minecraft
+ *               Copyright (C) 2014 - 2022 IntellectualSites
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.plotsquared.core.plot.flag.implementations;
+
+import com.plotsquared.core.configuration.caption.TranslatableCaption;
+import com.plotsquared.core.plot.flag.types.BooleanFlag;
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public class ProjectilesFlag extends BooleanFlag<ProjectilesFlag> {
+
+    public static final ProjectilesFlag PROJECTILES_TRUE = new ProjectilesFlag(true);
+    public static final ProjectilesFlag PROJECTILES_FALSE = new ProjectilesFlag(false);
+
+    private ProjectilesFlag(boolean value){
+        super(value, TranslatableCaption.of("flags.flag_description_projectiles"));
+    }
+
+    @Override
+    protected ProjectilesFlag flagOf(@NonNull final Boolean value) {
+        return value ? PROJECTILES_TRUE : PROJECTILES_FALSE;
+    }
+
+}

Core/src/main/java/com/plotsquared/core/queue/BasicQueueCoordinator.java

@@ -34,6 +34,7 @@ import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.regions.CuboidRegion;
 import com.sk89q.worldedit.util.Location;
+import com.sk89q.worldedit.util.SideEffectSet;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
@@ -61,6 +62,7 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
     private int lastX = Integer.MIN_VALUE;
     private int lastZ = Integer.MIN_VALUE;
     private boolean settingBiomes = false;
+    private boolean disableBiomes = false;
     private boolean settingTiles = false;
     private boolean regen = false;
     private int[] regenStart;
@@ -68,7 +70,8 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
     private CuboidRegion regenRegion = null;
     private Consumer<BlockVector2> consumer = null;
     private boolean unloadAfter = true;
-    private Runnable whenDone;
+    private Runnable whenDone = null;
+    private SideEffectSet sideEffectSet = null;
     @Nullable
     private LightingMode lightingMode = LightingMode.valueOf(Settings.QUEUE.LIGHTING_MODE);
 
@@ -101,7 +104,7 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
 
     @Override
     public boolean setBlock(int x, int y, int z, @NonNull BaseBlock id) {
-        if ((y > 255) || (y < 0)) {
+        if ((y > world.getMaxY()) || (y < world.getMinY())) {
             return false;
         }
         LocalChunk chunk = getChunk(x >> 4, z >> 4);
@@ -120,8 +123,11 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
     @SuppressWarnings("removal")
     @Override
     public boolean setBiome(int x, int z, @NonNull BiomeType biomeType) {
+        if (disableBiomes) {
+            return false;
+        }
         LocalChunk chunk = getChunk(x >> 4, z >> 4);
-        for (int y = 0; y < 256; y++) {
+        for (int y = world.getMinY(); y <= world.getMaxY(); y++) {
             chunk.setBiome(x & 15, y, z & 15, biomeType);
         }
         settingBiomes = true;
@@ -130,6 +136,9 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
 
     @Override
     public final boolean setBiome(int x, int y, int z, @NonNull BiomeType biomeType) {
+        if (disableBiomes) {
+            return false;
+        }
         LocalChunk chunk = getChunk(x >> 4, z >> 4);
         chunk.setBiome(x & 15, y, z & 15, biomeType);
         settingBiomes = true;
@@ -141,6 +150,12 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
         return this.settingBiomes;
     }
 
+    @Override
+    public void setBiomesEnabled(boolean settingBiomes) {
+        this.settingBiomes = settingBiomes;
+        this.disableBiomes = true;
+    }
+
     @Override
     public boolean setTile(int x, int y, int z, @NonNull CompoundTag tag) {
         LocalChunk chunk = getChunk(x >> 4, z >> 4);
@@ -315,6 +330,29 @@ public abstract class BasicQueueCoordinator extends QueueCoordinator {
         this.whenDone = whenDone;
     }
 
+    @Override
+    public SideEffectSet getSideEffectSet() {
+        return sideEffectSet;
+    }
+
+    @Override
+    public void setSideEffectSet(SideEffectSet sideEffectSet) {
+        this.sideEffectSet = sideEffectSet;
+    }
+
+    // Don't ask about the @NonNull placement. That's how it needs to be else it errors.
+    @Override
+    public void setBiomeCuboid(
+            final com.plotsquared.core.location.@NonNull Location pos1,
+            final com.plotsquared.core.location.@NonNull Location pos2,
+            @NonNull final BiomeType biome
+    ) {
+        if (disableBiomes) {
+            return;
+        }
+        super.setBiomeCuboid(pos1, pos2, biome);
+    }
+
     /**
      * Get the {@link LocalChunk} from the queue at the given chunk coordinates. Returns a new instance if one doesn't exist
      */

Core/src/main/java/com/plotsquared/core/queue/ChunkQueueCoordinator.java

@@ -54,12 +54,12 @@ public class ChunkQueueCoordinator extends ScopedQueueCoordinator {
             @NonNull BlockVector3 top,
             boolean biomes
     ) {
-        super(null, Location.at("", 0, 0, 0), Location.at("", 15, 255, 15));
+        super(null, Location.at("", 0, weWorld.getMinY(), 0), Location.at("", 15, weWorld.getMaxY(), 15));
         this.weWorld = weWorld;
         this.width = top.getX() - bot.getX() + 1;
         this.length = top.getZ() - bot.getZ() + 1;
-        this.result = new BlockState[256][width][length];
-        this.biomeResult = biomes ? new BiomeType[256][width][length] : null;
+        this.result = new BlockState[weWorld.getMaxY() - weWorld.getMinY() + 1][width][length];
+        this.biomeResult = biomes ? new BiomeType[weWorld.getMaxY() - weWorld.getMinY() + 1][width][length] : null;
         this.bot = bot;
         this.top = top;
     }
@@ -71,7 +71,7 @@ public class ChunkQueueCoordinator extends ScopedQueueCoordinator {
     @Override
     public boolean setBiome(int x, int z, @NonNull BiomeType biomeType) {
         if (this.biomeResult != null) {
-            for (int y = 0; y < 256; y++) {
+            for (int y = weWorld.getMinY(); y <= weWorld.getMaxY(); y++) {
                 this.storeCacheBiome(x, y, z, biomeType);
             }
             return true;
@@ -101,9 +101,10 @@ public class ChunkQueueCoordinator extends ScopedQueueCoordinator {
     }
 
     private void storeCache(final int x, final int y, final int z, final @NonNull BlockState id) {
-        BlockState[][] resultY = result[y];
+        int yIndex = getYIndex(y);
+        BlockState[][] resultY = result[yIndex];
         if (resultY == null) {
-            result[y] = resultY = new BlockState[length][];
+            result[yIndex] = resultY = new BlockState[length][];
         }
         BlockState[] resultYZ = resultY[z];
         if (resultYZ == null) {
@@ -113,9 +114,10 @@ public class ChunkQueueCoordinator extends ScopedQueueCoordinator {
     }
 
     private void storeCacheBiome(final int x, final int y, final int z, final @NonNull BiomeType id) {
-        BiomeType[][] resultY = biomeResult[y];
+        int yIndex = getYIndex(y);
+        BiomeType[][] resultY = biomeResult[yIndex];
         if (resultY == null) {
-            biomeResult[y] = resultY = new BiomeType[length][];
+            biomeResult[yIndex] = resultY = new BiomeType[length][];
         }
         BiomeType[] resultYZ = resultY[z];
         if (resultYZ == null) {
@@ -132,7 +134,7 @@ public class ChunkQueueCoordinator extends ScopedQueueCoordinator {
 
     @Override
     public @Nullable BlockState getBlock(int x, int y, int z) {
-        BlockState[][] blocksY = result[y];
+        BlockState[][] blocksY = result[getYIndex(y)];
         if (blocksY != null) {
             BlockState[] blocksYZ = blocksY[z];
             if (blocksYZ != null) {
@@ -157,4 +159,8 @@ public class ChunkQueueCoordinator extends ScopedQueueCoordinator {
         return Location.at(getWorld().getName(), bot.getX(), bot.getY(), bot.getZ());
     }
 
+    private int getYIndex(int y) {
+        return y - weWorld.getMinY();
+    }
+
 }

Core/src/main/java/com/plotsquared/core/queue/DelegateQueueCoordinator.java

@@ -32,6 +32,7 @@ import com.sk89q.worldedit.entity.Entity;
 import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.regions.CuboidRegion;
+import com.sk89q.worldedit.util.SideEffectSet;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
@@ -135,6 +136,13 @@ public class DelegateQueueCoordinator extends QueueCoordinator {
         return false;
     }
 
+    @Override
+    public void setBiomesEnabled(final boolean enabled) {
+        if (parent != null) {
+            parent.setBiomesEnabled(enabled);
+        }
+    }
+
     @Override
     public boolean setEntity(@NonNull Entity entity) {
         if (parent != null) {
@@ -248,6 +256,21 @@ public class DelegateQueueCoordinator extends QueueCoordinator {
         }
     }
 
+    @Override
+    public SideEffectSet getSideEffectSet() {
+        if (parent != null) {
+            return parent.getSideEffectSet();
+        }
+        return null;
+    }
+
+    @Override
+    public void setSideEffectSet(final SideEffectSet sideEffectSet) {
+        if (parent != null) {
+            parent.setSideEffectSet(sideEffectSet);
+        }
+    }
+
     @Override
     public @NonNull List<BlockVector2> getReadChunks() {
         if (parent != null) {

Core/src/main/java/com/plotsquared/core/queue/LocalChunk.java

@@ -42,6 +42,7 @@ public class LocalChunk {
     private final QueueCoordinator parent;
     private final int x;
     private final int z;
+    private final int minSection;
 
     private final BaseBlock[][] baseblocks;
     private final BiomeType[][] biomes;
@@ -52,8 +53,10 @@ public class LocalChunk {
         this.parent = parent;
         this.x = x;
         this.z = z;
-        baseblocks = new BaseBlock[16][];
-        biomes = new BiomeType[16][];
+        this.minSection = parent.getMinLayer();
+        int sections = parent.getMaxLayer() - parent.getMinLayer() + 1;
+        baseblocks = new BaseBlock[sections][];
+        biomes = new BiomeType[sections][];
     }
 
     public @NonNull QueueCoordinator getParent() {
@@ -68,6 +71,15 @@ public class LocalChunk {
         return this.z;
     }
 
+    /**
+     * Get the minimum layer position stored (usually -4 or 0).
+     *
+     * @since 6.6.0
+     */
+    public int getMinSection() {
+        return this.minSection;
+    }
+
     public @NonNull BaseBlock[][] getBaseblocks() {
         return this.baseblocks;
     }
@@ -81,7 +93,7 @@ public class LocalChunk {
     }
 
     public void setBiome(final int x, final int y, final int z, final @NonNull BiomeType biomeType) {
-        final int i = y >> 4;
+        final int i = getLayerIndex(y);
         final int j = ChunkUtil.getJ(x, y, z);
         BiomeType[] array = this.biomes[i];
         if (array == null) {
@@ -96,7 +108,7 @@ public class LocalChunk {
     }
 
     public void setBlock(final int x, final int y, final int z, final @NonNull BaseBlock baseBlock) {
-        final int i = y >> 4;
+        final int i = getLayerIndex(y);
         final int j = ChunkUtil.getJ(x, y, z);
         BaseBlock[] array = baseblocks[i];
         if (array == null) {
@@ -117,4 +129,8 @@ public class LocalChunk {
         return this.entities;
     }
 
+    private int getLayerIndex(final int y) {
+        return (y >> 4) - minSection;
+    }
+
 }

Core/src/main/java/com/plotsquared/core/queue/LocationOffsetDelegateQueueCoordinator.java

@@ -87,11 +87,14 @@ public class LocationOffsetDelegateQueueCoordinator extends DelegateQueueCoordin
 
     @Override
     public boolean setBiome(int x, int z, @NonNull BiomeType biome) {
-        boolean result = true;
-        for (int y = 0; y < 256; y++) {
-            result &= this.setBiome(x, y, z, biome);
+        try {
+            if (canPlace[x - blockX][z - blockZ]) {
+                return super.setBiome(x, z, biome);
+            }
+        } catch (final Exception e) {
+            throw e;
         }
-        return result;
+        return false;
     }
 
     @Override

Core/src/main/java/com/plotsquared/core/queue/QueueCoordinator.java

@@ -35,6 +35,7 @@ import com.sk89q.worldedit.entity.Entity;
 import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.regions.CuboidRegion;
+import com.sk89q.worldedit.util.SideEffectSet;
 import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BaseBlock;
@@ -75,12 +76,29 @@ public abstract class QueueCoordinator {
      * @param x chunk x coordinate
      * @param z chunk z coordinate
      * @return a new {@link ScopedQueueCoordinator}
+     * @deprecated Use {@link ScopedQueueCoordinator#getForChunk(int, int, int, int)}
      */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     public ScopedQueueCoordinator getForChunk(int x, int z) {
+        if (getWorld() == null) {
+            return getForChunk(x, z, PlotSquared.platform().versionMinHeight(), PlotSquared.platform().versionMaxHeight());
+        }
+        return getForChunk(x, z, getWorld().getMinY(), getWorld().getMaxY());
+    }
+
+    /**
+     * Get a {@link ScopedQueueCoordinator} limited to the chunk at the specific chunk Coordinates
+     *
+     * @param x chunk x coordinate
+     * @param z chunk z coordinate
+     * @return a new {@link ScopedQueueCoordinator}
+     * @since 6.6.0
+     */
+    public ScopedQueueCoordinator getForChunk(int x, int z, int minY, int maxY) {
         int bx = x << 4;
         int bz = z << 4;
-        return new ScopedQueueCoordinator(this, Location.at(getWorld().getName(), bx, 0, bz),
-                Location.at(getWorld().getName(), bx + 15, 255, bz + 255)
+        return new ScopedQueueCoordinator(this, Location.at(getWorld().getName(), bx, minY, bz),
+                Location.at(getWorld().getName(), bx + 15, maxY, bz + 15)
         );
     }
 
@@ -230,6 +248,14 @@ public abstract class QueueCoordinator {
      */
     public abstract boolean isSettingBiomes();
 
+    /**
+     * If the queue should accept biome placement
+     *
+     * @param enabled If biomes should be enabled
+     * @since TODO
+     */
+    public abstract void setBiomesEnabled(boolean enabled);
+
     /**
      * Add entities to be created
      *
@@ -395,6 +421,20 @@ public abstract class QueueCoordinator {
      */
     public abstract void setLightingMode(@Nullable LightingMode mode);
 
+    /**
+     * Get the overriding {@link SideEffectSet} to be used by the queue if it exists, else null
+     *
+     * @return Overriding {@link SideEffectSet} or null
+     */
+    public abstract @Nullable SideEffectSet getSideEffectSet();
+
+    /**
+     * Set the overriding {@link SideEffectSet} to be used by the queue. Null to use default side effects.
+     *
+     * @param sideEffectSet side effects to override with, or null to use default
+     */
+    public abstract void setSideEffectSet(@Nullable SideEffectSet sideEffectSet);
+
     /**
      * Fill a cuboid between two positions with a BlockState
      *
@@ -404,7 +444,7 @@ public abstract class QueueCoordinator {
      */
     public void setCuboid(@NonNull Location pos1, @NonNull Location pos2, @NonNull BlockState block) {
         int yMin = Math.min(pos1.getY(), pos2.getY());
-        int yMax = Math.min(255, Math.max(pos1.getY(), pos2.getY()));
+        int yMax = Math.max(pos1.getY(), pos2.getY());
         int xMin = Math.min(pos1.getX(), pos2.getX());
         int xMax = Math.max(pos1.getX(), pos2.getX());
         int zMin = Math.min(pos1.getZ(), pos2.getZ());
@@ -427,7 +467,7 @@ public abstract class QueueCoordinator {
      */
     public void setCuboid(@NonNull Location pos1, @NonNull Location pos2, @NonNull Pattern blocks) {
         int yMin = Math.min(pos1.getY(), pos2.getY());
-        int yMax = Math.min(255, Math.max(pos1.getY(), pos2.getY()));
+        int yMax = Math.max(pos1.getY(), pos2.getY());
         int xMin = Math.min(pos1.getX(), pos2.getX());
         int xMax = Math.max(pos1.getX(), pos2.getX());
         int zMin = Math.min(pos1.getZ(), pos2.getZ());
@@ -450,7 +490,7 @@ public abstract class QueueCoordinator {
      */
     public void setBiomeCuboid(@NonNull Location pos1, @NonNull Location pos2, @NonNull BiomeType biome) {
         int yMin = Math.min(pos1.getY(), pos2.getY());
-        int yMax = Math.min(255, Math.max(pos1.getY(), pos2.getY()));
+        int yMax = Math.max(pos1.getY(), pos2.getY());
         int xMin = Math.min(pos1.getX(), pos2.getX());
         int xMax = Math.max(pos1.getX(), pos2.getX());
         int zMin = Math.min(pos1.getZ(), pos2.getZ());
@@ -464,4 +504,32 @@ public abstract class QueueCoordinator {
         }
     }
 
+    /**
+     * Get the min Y limit associated with the queue
+     */
+    protected int getMinY() {
+        return getWorld() != null ? getWorld().getMinY() : PlotSquared.platform().versionMinHeight();
+    }
+
+    /**
+     * Get the max Y limit associated with the queue
+     */
+    protected int getMaxY() {
+        return getWorld() != null ? getWorld().getMinY() : PlotSquared.platform().versionMaxHeight();
+    }
+
+    /**
+     * Get the min chunk layer associated with the queue. Usually 0 or -4;
+     */
+    protected int getMinLayer() {
+        return (getWorld() != null ? getWorld().getMinY() : PlotSquared.platform().versionMinHeight()) >> 4;
+    }
+
+    /**
+     * Get the max chunk layer associated with the queue. Usually 15 or 19
+     */
+    protected int getMaxLayer() {
+        return (getWorld() != null ? getWorld().getMaxY() : PlotSquared.platform().versionMaxHeight()) >> 4;
+    }
+
 }

Core/src/main/java/com/plotsquared/core/queue/ScopedQueueCoordinator.java

@@ -35,34 +35,36 @@ import org.checkerframework.checker.nullness.qual.NonNull;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 /**
- * Queue that only sets blocks with a designated area
+ * Queue that only sets blocks with a designated X-Z area, will accept any Y values. Requires all blocks be set normalized in
+ * the x and z directions, i.e. starting from 0,0. An offset of the minimum point of the region will then be applied to x and z.
  */
 public class ScopedQueueCoordinator extends DelegateQueueCoordinator {
 
+    private final Location min;
+    private final Location max;
     private final int minX;
-    private final int minY;
     private final int minZ;
 
     private final int maxX;
-    private final int maxY;
     private final int maxZ;
 
     private final int dx;
-    private final int dy;
     private final int dz;
 
+    /**
+     * Create a new ScopedQueueCoordinator instance that delegates to a given QueueCoordinator. Locations are inclusive.
+     */
     public ScopedQueueCoordinator(@Nullable QueueCoordinator parent, @NonNull Location min, @NonNull Location max) {
         super(parent);
+        this.min = min;
+        this.max = max;
         this.minX = min.getX();
-        this.minY = min.getY();
         this.minZ = min.getZ();
 
         this.maxX = max.getX();
-        this.maxY = max.getY();
         this.maxZ = max.getZ();
 
         this.dx = maxX - minX;
-        this.dy = maxY - minY;
         this.dz = maxZ - minZ;
     }
 
@@ -73,11 +75,11 @@ public class ScopedQueueCoordinator extends DelegateQueueCoordinator {
 
     @Override
     public boolean setBiome(int x, int y, int z, @NonNull BiomeType biome) {
-        return x >= 0 && x <= dx && y >= 0 && y <= dy && z >= 0 && z <= dz && super.setBiome(x + minX, y + minY, z + minZ, biome);
+        return x >= 0 && x <= dx && z >= 0 && z <= dz && super.setBiome(x + minX, y, z + minZ, biome);
     }
 
     public void fillBiome(BiomeType biome) {
-        for (int y = 0; y <= dy; y++) {
+        for (int y = min.getY(); y <= max.getY(); y++) {
             for (int x = 0; x <= dx; x++) {
                 for (int z = 0; z < dz; z++) {
                     setBiome(x, y, z, biome);
@@ -88,35 +90,30 @@ public class ScopedQueueCoordinator extends DelegateQueueCoordinator {
 
     @Override
     public boolean setBlock(int x, int y, int z, @NonNull BaseBlock id) {
-        return x >= 0 && x <= dx && y >= 0 && y <= dy && z >= 0 && z <= dz && super.setBlock(x + minX, y + minY, z + minZ, id);
+        return x >= 0 && x <= dx && z >= 0 && z <= dz && super.setBlock(x + minX, y, z + minZ, id);
     }
 
     @Override
     public boolean setBlock(int x, int y, int z, @NonNull BlockState id) {
-        return x >= 0 && x <= dx && y >= 0 && y <= dy && z >= 0 && z <= dz && super.setBlock(x + minX, y + minY, z + minZ, id);
+        return x >= 0 && x <= dx && z >= 0 && z <= dz && super.setBlock(x + minX, y, z + minZ, id);
     }
 
     @Override
     public boolean setBlock(int x, int y, int z, @NonNull Pattern pattern) {
-        return x >= 0 && x <= dx && y >= 0 && y <= dy && z >= 0 && z <= dz && super.setBlock(
-                x + minX,
-                y + minY,
-                z + minZ,
-                pattern
-        );
+        return x >= 0 && x <= dx && z >= 0 && z <= dz && super.setBlock(x + minX, y, z + minZ, pattern);
     }
 
     @Override
     public boolean setTile(int x, int y, int z, @NonNull CompoundTag tag) {
-        return x >= 0 && x <= dx && y >= 0 && y <= dy && z >= 0 && z <= dz && super.setTile(x + minX, y + minY, z + minZ, tag);
+        return x >= 0 && x <= dx && z >= 0 && z <= dz && super.setTile(x + minX, y, z + minZ, tag);
     }
 
     public @NonNull Location getMin() {
-        return Location.at(this.getWorld().getName(), this.minX, this.minY, this.minZ);
+        return min;
     }
 
     public @NonNull Location getMax() {
-        return Location.at(this.getWorld().getName(), this.maxX, this.maxY, this.maxZ);
+        return max;
     }
 
 }

Core/src/main/java/com/plotsquared/core/util/ChunkManager.java

@@ -31,6 +31,7 @@ import com.plotsquared.core.queue.QueueCoordinator;
 import com.plotsquared.core.queue.ScopedQueueCoordinator;
 import com.plotsquared.core.util.task.RunnableVal;
 import com.sk89q.worldedit.math.BlockVector2;
+import com.sk89q.worldedit.world.World;
 
 import java.util.Map;
 import java.util.concurrent.CompletableFuture;
@@ -47,18 +48,16 @@ public abstract class ChunkManager {
             String world,
             BlockVector2 loc
     ) {
-        QueueCoordinator queue = PlotSquared.platform().globalBlockQueue().getNewQueue(PlotSquared
-                .platform()
-                .worldUtil()
-                .getWeWorld(world));
+        World weWorld = PlotSquared.platform().worldUtil().getWeWorld(world);
+        QueueCoordinator queue = PlotSquared.platform().globalBlockQueue().getNewQueue(weWorld);
         if (PlotSquared.get().getPlotAreaManager().isAugmented(world) && PlotSquared.get().isNonStandardGeneration(world, loc)) {
             int blockX = loc.getX() << 4;
             int blockZ = loc.getZ() << 4;
             ScopedQueueCoordinator scoped =
                     new ScopedQueueCoordinator(
                             queue,
-                            Location.at(world, blockX, 0, blockZ),
-                            Location.at(world, blockX + 15, 255, blockZ + 15)
+                            Location.at(world, blockX, weWorld.getMinY(), blockZ),
+                            Location.at(world, blockX + 15, weWorld.getMaxY(), blockZ + 15)
                     );
             if (force != null) {
                 force.run(scoped);

Core/src/main/java/com/plotsquared/core/util/ChunkUtil.java

@@ -39,30 +39,27 @@ public class ChunkUtil {
      * - Used for efficient world generation<br>
      */
     private static final short[] x_loc;
-    private static final short[][] y_loc;
+    private static final short[] y_loc;
     private static final short[] z_loc;
     private static final short[][][] CACHE_J;
 
     static {
         x_loc = new short[4096];
-        y_loc = new short[16][4096];
+        y_loc = new short[4096];
         z_loc = new short[4096];
-        for (int i = 0; i < 16; i++) {
-            int i4 = i << 4;
-            for (int j = 0; j < 4096; j++) {
-                int y = i4 + (j >> 8);
-                int a = j - ((y & 0xF) << 8);
-                int z1 = a >> 4;
-                int x1 = a - (z1 << 4);
-                x_loc[j] = (short) x1;
-                y_loc[i][j] = (short) y;
-                z_loc[j] = (short) z1;
-            }
+        for (int j = 0; j < 4096; j++) {
+            int y = j >> 8;
+            int a = j - ((y & 0xF) << 8);
+            int z1 = a >> 4;
+            int x1 = a - (z1 << 4);
+            x_loc[j] = (short) x1;
+            y_loc[j] = (short) y;
+            z_loc[j] = (short) z1;
         }
-        CACHE_J = new short[256][16][16];
+        CACHE_J = new short[16][16][16];
         for (int x = 0; x < 16; x++) {
             for (int z = 0; z < 16; z++) {
-                for (int y = 0; y < 256; y++) {
+                for (int y = 0; y < 16; y++) {
                     short j = (short) ((y & 0xF) << 8 | z << 4 | x);
                     CACHE_J[y][x][z] = j;
                 }
@@ -83,7 +80,7 @@ public class ChunkUtil {
      * @return J value for xyz position in Array[4096].
      */
     public static int getJ(int x, int y, int z) {
-        return CACHE_J[y][x][z];
+        return CACHE_J[y & 15][x & 15][z & 15];
     }
 
     /**
@@ -97,14 +94,14 @@ public class ChunkUtil {
     }
 
     /**
-     * Gets the y coordinate for specific I and J values for a Chunk 16x16x16x16 layerxyz Array[16][4096].
+     * Gets the y coordinate for specific I and J values for a Chunk Nx16x16x16 layerxyz Array[N][4096].
      *
-     * @param i Relative layer of the position in the layerxyz Array[16][4096].
+     * @param i Relative layer of the position in the layerxyz Array[16][4096]. May be negative.
      * @param j Position in the xyz Array[4096].
      * @return x coordinate within the chunk
      */
     public static int getY(int i, int j) {
-        return y_loc[i][j];
+        return (i << 4) + y_loc[j];
     }
 
     /**

Core/src/main/java/com/plotsquared/core/util/MainUtil.java

@@ -37,15 +37,21 @@ public class MainUtil {
      * Cache of mapping x,y,z coordinates to the chunk array<br>
      * - Used for efficient world generation<br>
      */
+    @Deprecated(forRemoval = true, since = "6.0.0")
     public static short[][] x_loc;
+    @Deprecated(forRemoval = true, since = "6.0.0")
     public static short[][] y_loc;
+    @Deprecated(forRemoval = true, since = "6.0.0")
     public static short[][] z_loc;
+    @Deprecated(forRemoval = true, since = "6.0.0")
     public static short[][][] CACHE_I = null;
+    @Deprecated(forRemoval = true, since = "6.0.0")
     public static short[][][] CACHE_J = null;
 
     /**
      * This cache is used for world generation and just saves a bit of calculation time when checking if something is in the plot area.
      */
+    @Deprecated(forRemoval = true, since = "6.0.0")
     public static void initCache() {
         if (x_loc == null) {
             x_loc = new short[16][4096];

Core/src/main/java/com/plotsquared/core/util/RegExUtil.java

@@ -29,6 +29,7 @@ import java.util.HashMap;
 import java.util.Map;
 import java.util.regex.Pattern;
 
+@Deprecated(since = "6.6.2", forRemoval = true)
 public class RegExUtil {
 
     public static Map<String, Pattern> compiledPatterns;

Core/src/main/java/com/plotsquared/core/util/RegionManager.java

@@ -279,7 +279,10 @@ public abstract class RegionManager {
         fromQueue1.addReadChunks(new CuboidRegion(pos1.getBlockVector3(), pos2.getBlockVector3()).getChunks());
         fromQueue2.addReadChunks(new CuboidRegion(
                 swapPos.getBlockVector3(),
-                BlockVector3.at(swapPos.getX() + pos2.getX() - pos1.getX(), 0, swapPos.getZ() + pos2.getZ() - pos1.getZ())
+                BlockVector3.at(swapPos.getX() + pos2.getX() - pos1.getX(),
+                        pos1.getY(),
+                        swapPos.getZ() + pos2.getZ() - pos1.getZ()
+                )
         ).getChunks());
         QueueCoordinator toQueue1 = blockQueue.getNewQueue(world1);
         QueueCoordinator toQueue2 = blockQueue.getNewQueue(world2);
@@ -352,7 +355,7 @@ public abstract class RegionManager {
             int bz = Math.max(pos1.getZ(), cbz) & 15;
             int tx = Math.min(pos2.getX(), cbx + 15) & 15;
             int tz = Math.min(pos2.getZ(), cbz + 15) & 15;
-            for (int y = 0; y < 256; y++) {
+            for (int y = world1.getMinY(); y <= world1.getMaxY(); y++) {
                 for (int x = bx; x <= tx; x++) {
                     for (int z = bz; z <= tz; z++) {
                         int rx = cbx + x;
@@ -363,7 +366,10 @@ public abstract class RegionManager {
                     }
                 }
             }
-            Region region = new CuboidRegion(BlockVector3.at(cbx + bx, 0, cbz + bz), BlockVector3.at(cbx + tx, 255, cbz + tz));
+            Region region = new CuboidRegion(
+                    BlockVector3.at(cbx + bx, world1.getMinY(), cbz + bz),
+                    BlockVector3.at(cbx + tx, world1.getMaxY(), cbz + tz)
+            );
             toQueue.addEntities(world1.getEntities(region));
             if (removeEntities) {
                 for (Entity entity : world1.getEntities(region)) {
@@ -373,6 +379,7 @@ public abstract class RegionManager {
         });
     }
 
+    @Deprecated(forRemoval = true, since = "6.6.0")
     public void setBiome(
             final CuboidRegion region,
             final int extendBiome,
@@ -380,39 +387,48 @@ public abstract class RegionManager {
             final String world,
             final Runnable whenDone
     ) {
-        Location pos1 = Location
-                .at(
-                        world,
-                        region.getMinimumPoint().getX() - extendBiome,
-                        region.getMinimumPoint().getY(),
-                        region.getMinimumPoint().getZ() - extendBiome
-                );
-        Location pos2 = Location
-                .at(
-                        world,
-                        region.getMaximumPoint().getX() + extendBiome,
-                        region.getMaximumPoint().getY(),
-                        region.getMaximumPoint().getZ() + extendBiome
-                );
-        final QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(world));
+        setBiome(region, extendBiome, biome, PlotSquared.get().getPlotAreaManager().getPlotAreas(world, region)[0], whenDone);
+    }
 
-        final int minX = pos1.getX();
-        final int minZ = pos1.getZ();
-        final int maxX = pos2.getX();
-        final int maxZ = pos2.getZ();
+    /**
+     * Set a region to a biome type.
+     *
+     * @param region      region to set
+     * @param extendBiome how far outside the region to extent setting the biome too account for 3D biomes being 4x4
+     * @param biome       biome to set
+     * @param area        {@link PlotArea} in which the biome is being set
+     * @param whenDone    task to run when complete
+     * @since 6.6.0
+     */
+    public void setBiome(
+            final CuboidRegion region,
+            final int extendBiome,
+            final BiomeType biome,
+            final PlotArea area,
+            final Runnable whenDone
+    ) {
+        final QueueCoordinator queue = blockQueue.getNewQueue(worldUtil.getWeWorld(area.getWorldName()));
         queue.addReadChunks(region.getChunks());
-        queue.setChunkConsumer(blockVector2 -> {
-            final int cx = blockVector2.getX() << 4;
-            final int cz = blockVector2.getZ() << 4;
+        final BlockVector3 regionMin = region.getMinimumPoint();
+        final BlockVector3 regionMax = region.getMaximumPoint();
+        queue.setChunkConsumer(chunkPos -> {
+            BlockVector3 chunkMin = BlockVector3.at(
+                    Math.max(chunkPos.getX() << 4, regionMin.getBlockX()),
+                    regionMin.getBlockY(),
+                    Math.max(chunkPos.getZ() << 4, regionMin.getBlockZ())
+            );
+            BlockVector3 chunkMax = BlockVector3.at(
+                    Math.min((chunkPos.getX() << 4) + 15, regionMax.getBlockX()),
+                    regionMax.getBlockY(),
+                    Math.min((chunkPos.getZ() << 4) + 15, regionMax.getBlockZ())
+            );
+            CuboidRegion chunkRegion = new CuboidRegion(region.getWorld(), chunkMin, chunkMax);
             WorldUtil.setBiome(
-                    world,
-                    Math.max(minX, cx),
-                    Math.max(minZ, cz),
-                    Math.min(maxX, cx + 15),
-                    Math.min(maxZ, cz + 15),
+                    area.getWorldName(),
+                    chunkRegion,
                     biome
             );
-            worldUtil.refreshChunk(blockVector2.getBlockX(), blockVector2.getBlockZ(), world);
+            worldUtil.refreshChunk(chunkPos.getBlockX(), chunkPos.getBlockZ(), area.getWorldName());
         });
         queue.setCompleteTask(whenDone);
         queue.enqueue();

Core/src/main/java/com/plotsquared/core/util/RegionUtil.java

@@ -76,8 +76,9 @@ public class RegionUtil {
         return new CuboidRegion(min, max);
     }
 
+    @Deprecated(forRemoval = true, since = "6.6.0")
     public static CuboidRegion createRegion(int pos1x, int pos2x, int pos1z, int pos2z) {
-        return createRegion(pos1x, pos2x, 0, Plot.MAX_HEIGHT - 1, pos1z, pos2z);
+        return createRegion(pos1x, pos2x, 0, 255, pos1z, pos2z);
     }
 
     public static CuboidRegion createRegion(

Core/src/main/java/com/plotsquared/core/util/SchematicHandler.java

@@ -305,12 +305,13 @@ public abstract class SchematicHandler {
             final int WIDTH = dimension.getX();
             final int LENGTH = dimension.getZ();
             final int HEIGHT = dimension.getY();
+            final int worldHeight = plot.getArea().getMaxGenHeight() - plot.getArea().getMinGenHeight() + 1;
             // Validate dimensions
             CuboidRegion region = plot.getLargestRegion();
             boolean sizeMismatch =
                     ((region.getMaximumPoint().getX() - region.getMinimumPoint().getX() + xOffset + 1) < WIDTH) || (
                             (region.getMaximumPoint().getZ() - region.getMinimumPoint().getZ() + zOffset + 1) < LENGTH) || (HEIGHT
-                            > 256);
+                            > worldHeight);
             if (!Settings.Schematics.PASTE_MISMATCHES && sizeMismatch) {
                 actor.sendMessage(TranslatableCaption.of("schematics.schematic_size_mismatch"));
                 TaskManager.runTask(whenDone);
@@ -321,14 +322,14 @@ public abstract class SchematicHandler {
             // Calculate the optimal height to paste the schematic at
             final int y_offset_actual;
             if (autoHeight) {
-                if (HEIGHT >= 256) {
+                if (HEIGHT >= worldHeight) {
                     y_offset_actual = yOffset;
                 } else {
                     PlotArea pw = plot.getArea();
                     if (pw instanceof ClassicPlotWorld) {
                         y_offset_actual = yOffset + pw.getMinBuildHeight() + ((ClassicPlotWorld) pw).PLOT_HEIGHT;
                     } else {
-                        y_offset_actual = yOffset + 1 + this.worldUtil
+                        y_offset_actual = yOffset + pw.getMinBuildHeight() + this.worldUtil
                                 .getHighestBlockSynchronous(plot.getWorldName(), region.getMinimumPoint().getX() + 1,
                                         region.getMinimumPoint().getZ() + 1
                                 );
@@ -360,9 +361,9 @@ public abstract class SchematicHandler {
             // Paste schematic here
             final QueueCoordinator queue = plot.getArea().getQueue();
 
-            for (int ry = 0; ry < Math.min(256, HEIGHT); ry++) {
+            for (int ry = 0; ry < Math.min(worldHeight, HEIGHT); ry++) {
                 int yy = y_offset_actual + ry;
-                if (yy > 255 || yy < 0) {
+                if (yy > plot.getArea().getMaxGenHeight() || yy < plot.getArea().getMinGenHeight()) {
                     continue;
                 }
                 for (int rz = 0; rz < blockArrayClipboard.getDimensions().getZ(); rz++) {
@@ -379,18 +380,18 @@ public abstract class SchematicHandler {
                         BlockVector3 loc = BlockVector3.at(rx, ry, rz);
                         BaseBlock id = blockArrayClipboard.getFullBlock(loc);
                         queue.setBlock(xx, yy, zz, id);
-                        if (ry == 0) {
-                            BiomeType biome = blockArrayClipboard.getBiome(loc);
-                            queue.setBiome(xx, yy, zz, biome);
-                        }
+                        BiomeType biome = blockArrayClipboard.getBiome(loc);
+                        queue.setBiome(xx, yy, zz, biome);
                     }
                 }
             }
             if (actor != null && Settings.QUEUE.NOTIFY_PROGRESS) {
                 queue.addProgressSubscriber(subscriberFactory.createWithActor(actor));
             }
-            whenDone.value = true;
-            queue.setCompleteTask(whenDone);
+            if (whenDone != null) {
+                whenDone.value = true;
+                queue.setCompleteTask(whenDone);
+            }
             queue.enqueue();
         } catch (Exception e) {
             e.printStackTrace();

Core/src/main/java/com/plotsquared/core/util/TimeUtil.java

@@ -44,27 +44,27 @@ public final class TimeUtil {
         StringBuilder toReturn = new StringBuilder();
         if (time >= 33868800) {
             int years = (int) (time / 33868800);
-            time -= years * 33868800;
+            time -= years * 33868800L;
             toReturn.append(years).append("y ");
         }
         if (time >= 604800) {
             int weeks = (int) (time / 604800);
-            time -= weeks * 604800;
+            time -= weeks * 604800L;
             toReturn.append(weeks).append("w ");
         }
         if (time >= 86400) {
             int days = (int) (time / 86400);
-            time -= days * 86400;
+            time -= days * 86400L;
             toReturn.append(days).append("d ");
         }
         if (time >= 3600) {
             int hours = (int) (time / 3600);
-            time -= hours * 3600;
+            time -= hours * 3600L;
             toReturn.append(hours).append("h ");
         }
         if (time >= 60) {
             int minutes = (int) (time / 60);
-            time -= minutes * 60;
+            time -= minutes * 60L;
             toReturn.append(minutes).append("m ");
         }
         if (toReturn.length() == 0 || time > 0) {

Core/src/main/java/com/plotsquared/core/util/WEManager.java

@@ -44,6 +44,9 @@ import java.util.UUID;
 
 public class WEManager {
 
+    private static final BlockVector3 MIN = BlockVector3.at(Integer.MIN_VALUE, Integer.MIN_VALUE, Integer.MIN_VALUE);
+    private static final BlockVector3 MAX = BlockVector3.at(Integer.MAX_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE);
+
     public static boolean maskContains(Set<CuboidRegion> mask, int x, int y, int z) {
         for (CuboidRegion region : mask) {
             if (RegionUtil.contains(region, x, y, z)) {
@@ -91,10 +94,7 @@ public class WEManager {
         Location location = player.getLocation();
         String world = location.getWorldName();
         if (!PlotSquared.get().getPlotAreaManager().hasPlotArea(world)) {
-            regions.add(RegionUtil
-                    .createRegion(Integer.MIN_VALUE, Integer.MAX_VALUE, Integer.MIN_VALUE,
-                            Integer.MAX_VALUE
-                    ));
+            regions.add(new CuboidRegion(MIN, MAX));
             return regions;
         }
         PlotArea area = player.getApplicablePlotArea();

Core/src/main/java/com/plotsquared/core/util/WorldUtil.java

@@ -39,6 +39,7 @@ import com.sk89q.jnbt.Tag;
 import com.sk89q.worldedit.math.BlockVector2;
 import com.sk89q.worldedit.math.BlockVector3;
 import com.sk89q.worldedit.regions.CuboidRegion;
+import com.sk89q.worldedit.world.World;
 import com.sk89q.worldedit.world.biome.BiomeType;
 import com.sk89q.worldedit.world.block.BlockState;
 import com.sk89q.worldedit.world.block.BlockType;
@@ -78,14 +79,29 @@ public abstract class WorldUtil {
      * @param p2x   Max X
      * @param p2z   Max Z
      * @param biome Biome
+     * @deprecated use {@link WorldUtil#setBiome(String, CuboidRegion, BiomeType)}
      */
+    @Deprecated(forRemoval = true)
     public static void setBiome(String world, int p1x, int p1z, int p2x, int p2z, BiomeType biome) {
-        BlockVector3 pos1 = BlockVector2.at(p1x, p1z).toBlockVector3();
-        BlockVector3 pos2 = BlockVector2.at(p2x, p2z).toBlockVector3(Plot.MAX_HEIGHT - 1);
+        World weWorld = PlotSquared.platform().worldUtil().getWeWorld(world);
+        BlockVector3 pos1 = BlockVector2.at(p1x, p1z).toBlockVector3(weWorld.getMinY());
+        BlockVector3 pos2 = BlockVector2.at(p2x, p2z).toBlockVector3(weWorld.getMaxY());
         CuboidRegion region = new CuboidRegion(pos1, pos2);
         PlotSquared.platform().worldUtil().setBiomes(world, region, biome);
     }
 
+    /**
+     * Set the biome in a region
+     *
+     * @param world  World name
+     * @param region Region
+     * @param biome  Biome
+     * @since 6.6.0
+     */
+    public static void setBiome(String world, final CuboidRegion region, BiomeType biome) {
+        PlotSquared.platform().worldUtil().setBiomes(world, region, biome);
+    }
+
     /**
      * Check if a given world name corresponds to a real world
      *
@@ -217,11 +233,14 @@ public abstract class WorldUtil {
     /**
      * Set the biome in a region
      *
-     * @param world  World name
-     * @param region Region
-     * @param biome  New biome
+     * @param worldName World name
+     * @param region    Region
+     * @param biome     New biome
      */
-    public abstract void setBiomes(@NonNull String world, @NonNull CuboidRegion region, @NonNull BiomeType biome);
+    public void setBiomes(@NonNull String worldName, @NonNull CuboidRegion region, @NonNull BiomeType biome) {
+        final World world = getWeWorld(worldName);
+        region.forEach(bv -> world.setBiome(bv, biome));
+    }
 
     /**
      * Get the WorldEdit {@link com.sk89q.worldedit.world.World} corresponding to a world name

Core/src/main/java/com/plotsquared/core/uuid/UUIDMapping.java

@@ -51,38 +51,29 @@ public class UUIDMapping {
         return this.uuid;
     }
 
+    @Override
     public boolean equals(final Object o) {
-        if (o == this) {
+        if (this == o) {
             return true;
         }
-        if (!(o instanceof final UUIDMapping other)) {
+        if (o == null || getClass() != o.getClass()) {
             return false;
         }
-        if (!other.canEqual(this)) {
-            return false;
-        }
-        final Object this$uuid = this.getUuid();
-        final Object other$uuid = other.getUuid();
-        if (!Objects.equals(this$uuid, other$uuid)) {
-            return false;
-        }
-        final Object this$username = this.getUsername();
-        final Object other$username = other.getUsername();
-        return Objects.equals(this$username, other$username);
+        final UUIDMapping that = (UUIDMapping) o;
+        return uuid.equals(that.uuid) && username.equals(that.username);
     }
 
+    @Override
+    public int hashCode() {
+        return Objects.hash(uuid, username);
+    }
+
+    /**
+     * @deprecated This method is not meant to be invoked or overridden, with no replacement.
+     */
+    @Deprecated(forRemoval = true, since = "6.6.0")
     protected boolean canEqual(final Object other) {
         return other instanceof UUIDMapping;
     }
 
-    public int hashCode() {
-        final int PRIME = 59;
-        int result = 1;
-        final Object $uuid = this.getUuid();
-        result = result * PRIME + $uuid.hashCode();
-        final Object $username = this.getUsername();
-        result = result * PRIME + $username.hashCode();
-        return result;
-    }
-
 }

Core/src/main/resources/lang/messages_en.json

@@ -161,8 +161,9 @@
   "setup.road_width": "<gold>Road width</gold>",
   "setup.road_height": "<gold>Road height</gold>",
   "setup.road_block": "<gold>Road block</gold>",
-  "setup.wall_filling_block": "<gold>Wall filling block</gold><gray> (Block(s) been put under the plot border down to Y1)</gray>",
+  "setup.wall_filling_block": "<gold>Wall filling block</gold><gray> (Block(s) been put under the plot border down to min gen height + 1)</gray>",
   "setup.wall_height": "<gold>Wall height</gold>",
+  "setup.min_gen_height": "<gold>Minimum height from which to generate (for 1.18+ can be negative).</gold>",
   "setup.bedrock_boolean": "<gold>Whether a bedrock layer under the plot should be generated or not</gold>",
   "setup.singleplotarea_void_world": "<gold>Void world</gold>",
   "plotareatype.plot_area_type_normal": "<gray>Standard plot generation</gray>",
@@ -612,6 +613,7 @@
   "flags.flag_description_lectern_read_book": "<gray>Prevent players taking books from lecterns.</gray>",
   "flags.flag_description_prevent_creative_copy": "<gray>Prevents people from copying item NBT data in the plot unless they're added as members.</gray>",
   "flags.flag_description_leaf_decay": "<gray>Set to `false` to prevent leaves from decaying.",
+  "flags.flag_description_projectiles": "<gray>Prevents guests from shooting projectiles on the plot when set to false.</gray>",
   "flags.flag_error_boolean": "Flag value must be a boolean (true | false).",
   "flags.flag_error_enum": "Must be one of: <list>",
   "flags.flag_error_integer": "Flag value must be a whole positive number.",

build.gradle.kts

@@ -18,7 +18,7 @@ plugins {
     idea
 }
 
-version = "6.5.1"
+version = "6.7.1-SNAPSHOT"
 
 allprojects {
     group = "com.plotsquared"
@@ -40,6 +40,9 @@ allprojects {
         maven {
             name = "Jitpack"
             url = uri("https://jitpack.io")
+            content {
+                includeModule("com.github.MilkBowl", "VaultAPI")
+            }
         }
 
         maven {
@@ -137,7 +140,7 @@ allprojects {
                         }
                         developer {
                             id.set("NotMyFault")
-                            name.set("NotMyFault")
+                            name.set("Alexander Brandes")
                             organization.set("IntellectualSites")
                             email.set("contact@notmyfault.dev")
                         }

gradle/libs.versions.toml

@@ -6,9 +6,9 @@ guava = "31.0.1-jre" # Version set by Minecraft
 
 # Platform expectations
 paper = "1.18.1-R0.1-SNAPSHOT"
-checker-qual = "3.21.2"
+checker-qual = "3.22.0"
 guice = "5.1.0"
-findbugs = "3.0.1"
+spotbugs = "4.7.0"
 snakeyaml = "1.30" # Version set by Bukkit
 
 # Adventure & MiniMessage
@@ -17,23 +17,23 @@ adventure-text-minimessage = "4.1.0-SNAPSHOT"
 adventure-platform-bukkit = "4.0.1"
 
 # Plugins
-worldedit = "7.2.9"
-fawe = "2.0.1"
+worldedit = "7.2.10"
+fawe = "2.1.2"
 vault = "1.7.1"
 placeholderapi = "2.11.1"
 luckperms = "5.4"
-essentialsx = "2.19.2"
+essentialsx = "2.19.4"
 mvdwapi = "3.1.1"
 
 # Third party
 prtree = "2.0.0"
 aopalliance = "1.0"
-cloud-services = "1.6.1"
+cloud-services = "1.6.2"
 arkitektonika = "2.1.1"
 paster = "1.1.4"
 bstats = "3.0.0"
 paperlib = "1.0.7"
-squirrelid = "0.3.0"
+squirrelid = "0.3.1"
 serverlib = "2.3.1"
 http4j = "1.3"
 
@@ -56,7 +56,7 @@ log4j = { group = "org.apache.logging.log4j", name = "log4j-api", version.ref =
 snakeyaml = { group = "org.yaml", name = "snakeyaml", version.ref = "snakeyaml" }
 guice = { group = "com.google.inject", name = "guice", version.ref = "guice" }
 guiceassistedinject = { group = "com.google.inject.extensions", name = "guice-assistedinject", version.ref = "guice" }
-findbugs = { group = "com.google.code.findbugs", name = "annotations", version.ref = "findbugs" }
+spotbugs = { group = "com.github.spotbugs", name = "spotbugs-annotations", version.ref = "spotbugs" }
 
 # Adventure & MiniMessage
 adventure = { group = "net.kyori", name = "adventure-api", version.ref = "adventure-api" }
@@ -78,7 +78,7 @@ prtree = { group = "com.intellectualsites.prtree", name = "PRTree", version.ref
 aopalliance = { group = "aopalliance", name = "aopalliance", version.ref = "aopalliance" }
 cloudServices = { group = "cloud.commandframework", name = "cloud-services", version.ref = "cloud-services" }
 mvdwapi = { group = "com.intellectualsites.mvdwplaceholderapi", name = "MVdWPlaceholderAPI", version.ref = "mvdwapi" }
-squirrelid = { group = "com.github.EngineHub", name = "SquirrelID", version.ref = "squirrelid" }
+squirrelid = { group = "org.enginehub", name = "squirrelid", version.ref = "squirrelid" }
 serverlib = { group = "dev.notmyfault.serverlib", name = "ServerLib", version.ref = "serverlib" }
 bstats = { group = "org.bstats", name = "bstats-bukkit", version.ref = "bstats" }
 paperlib = { group = "io.papermc", name = "paperlib", version.ref = "paperlib" }

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

renovate.json

@@ -8,7 +8,8 @@
     "com.google.guava:guava",
     "com.google.code.gson:gson",
     "gson",
-    "snakeyaml"
+    "snakeyaml",
+    "net.kyori"
   ],
   "timezone": "Europe/Berlin",
   "schedule": [

settings.gradle.kts

@@ -5,5 +5,4 @@ include("Core", "Bukkit")
 project(":Core").name = "PlotSquared-Core"
 project(":Bukkit").name = "PlotSquared-Bukkit"
 
-enableFeaturePreview("VERSION_CATALOGS")
 enableFeaturePreview("TYPESAFE_PROJECT_ACCESSORS")