Merge branch 'v6' into chore/v6/deprecate-static-permissions-class

Bukkit/build.gradle.kts

@@ -50,6 +50,7 @@ dependencies {
     implementation(libs.arkitektonika)
     implementation(libs.http4j)
     implementation("com.intellectualsites.paster:Paster")
+    implementation("com.intellectualsites.informative-annotations:informative-annotations")
 
     // Adventure
     implementation("net.kyori:adventure-platform-bukkit")
@@ -87,6 +88,7 @@ tasks.named<ShadowJar>("shadowJar") {
     relocate("javax.inject", "com.plotsquared.core.annotation.inject")
     relocate("net.jcip", "com.plotsquared.core.annotations.jcip")
     relocate("edu.umd.cs.findbugs", "com.plotsquared.core.annotations.findbugs")
+    relocate("com.intellectualsites.informative-annotations", "com.plotsquared.core.annotation.informative")
 
     // Get rid of all the libs which are 100% unused.
     minimize()

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

@@ -65,6 +65,7 @@ import net.kyori.adventure.text.minimessage.Template;
 import org.bukkit.Bukkit;
 import org.bukkit.GameMode;
 import org.bukkit.Material;
+import org.bukkit.Tag;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.BlockState;
@@ -106,11 +107,20 @@ import org.checkerframework.checker.nullness.qual.NonNull;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 import java.util.UUID;
 
 @SuppressWarnings("unused")
 public class BlockEventListener implements Listener {
 
+    private static final Set<Material> PISTONS = Set.of(
+            Material.PISTON,
+            Material.STICKY_PISTON
+    );
+    private static final Set<Material> PHYSICS_BLOCKS = Set.of(
+            Material.TURTLE_EGG,
+            Material.TURTLE_SPAWN_EGG
+    );
     private final PlotAreaManager plotAreaManager;
     private final WorldEdit worldEdit;
 
@@ -216,48 +226,31 @@ public class BlockEventListener implements Listener {
             plot.debug("Prevented block physics and resent block change because disable-physics = true");
             return;
         }
-        switch (event.getChangedType()) {
+        if (event.getChangedType() == Material.COMPARATOR) {
-            case COMPARATOR: {
+            if (!plot.getFlag(RedstoneFlag.class)) {
-                if (!plot.getFlag(RedstoneFlag.class)) {
+                event.setCancelled(true);
-                    event.setCancelled(true);
+                plot.debug("Prevented comparator update because redstone = false");
-                    plot.debug("Prevented comparator update because redstone = false");
-                }
-                return;
             }
-            case ANVIL:
+            return;
-            case DRAGON_EGG:
+        }
-            case GRAVEL:
+        if (PHYSICS_BLOCKS.contains(event.getChangedType())) {
-            case SAND:
+            if (plot.getFlag(DisablePhysicsFlag.class)) {
-            case TURTLE_EGG:
+                event.setCancelled(true);
-            case TURTLE_HELMET:
+                plot.debug("Prevented block physics because disable-physics = true");
-            case TURTLE_SPAWN_EGG: {
-                if (plot.getFlag(DisablePhysicsFlag.class)) {
-                    event.setCancelled(true);
-                    plot.debug("Prevented block physics because disable-physics = true");
-                }
-                return;
             }
-            default:
+            return;
-                if (Settings.Redstone.DETECT_INVALID_EDGE_PISTONS) {
+        }
-                    switch (block.getType()) {
+        if (Settings.Redstone.DETECT_INVALID_EDGE_PISTONS) {
-                        case PISTON, STICKY_PISTON -> {
+            if (PISTONS.contains(block.getType())) {
-                            org.bukkit.block.data.Directional piston = (org.bukkit.block.data.Directional) block.getBlockData();
+                org.bukkit.block.data.Directional piston = (org.bukkit.block.data.Directional) block.getBlockData();
-                            switch (piston.getFacing()) {
+                final BlockFace facing = piston.getFacing();
-                                case EAST -> location = location.add(1, 0, 0);
+                location = location.add(facing.getModX(), facing.getModY(), facing.getModZ());
-                                case SOUTH -> location = location.add(-1, 0, 0);
+                Plot newPlot = area.getOwnedPlotAbs(location);
-                                case WEST -> location = location.add(0, 0, 1);
+                if (!plot.equals(newPlot)) {
-                                case NORTH -> location = location.add(0, 0, -1);
+                    event.setCancelled(true);
-                            }
+                    plot.debug("Prevented piston update because of invalid edge piston detection");
-                            Plot newPlot = area.getOwnedPlotAbs(location);
-                            if (!plot.equals(newPlot)) {
-                                event.setCancelled(true);
-                                plot.debug("Prevented piston update because of invalid edge piston detection");
-                                return;
-                            }
-                        }
-                    }
                 }
-                break;
+            }
         }
     }
 
@@ -272,15 +265,9 @@ public class BlockEventListener implements Listener {
         BukkitPlayer pp = BukkitUtil.adapt(player);
         Plot plot = area.getPlot(location);
         if (plot != null) {
-            if ((location.getY() >= area.getMaxBuildHeight() || location.getY() < area
+            if (area.notifyIfOutsideBuildArea(pp, location.getY())) {
-                    .getMinBuildHeight()) && !Permissions
-                    .hasPermission(pp, Permission.PERMISSION_ADMIN_BUILD_HEIGHT_LIMIT)) {
                 event.setCancelled(true);
-                pp.sendMessage(
+                return;
-                        TranslatableCaption.of("height.height_limit"),
-                        Template.of("minHeight", String.valueOf(area.getMinBuildHeight())),
-                        Template.of("maxHeight", String.valueOf(area.getMaxBuildHeight()))
-                );
             }
             if (!plot.hasOwner()) {
                 if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_BUILD_UNOWNED)) {
@@ -358,15 +345,9 @@ public class BlockEventListener implements Listener {
                     event.setCancelled(true);
                     return;
                 }
-            } else if ((location.getY() >= area.getMaxBuildHeight() || location.getY() < area
+            } else if (area.notifyIfOutsideBuildArea(plotPlayer, location.getY())) {
-                    .getMinBuildHeight()) && !Permissions
-                    .hasPermission(plotPlayer, Permission.PERMISSION_ADMIN_BUILD_HEIGHT_LIMIT)) {
                 event.setCancelled(true);
-                plotPlayer.sendMessage(
+                return;
-                        TranslatableCaption.of("height.height_limit"),
-                        Template.of("minHeight", String.valueOf(area.getMinBuildHeight())),
-                        Template.of("maxHeight", String.valueOf(area.getMaxBuildHeight()))
-                );
             }
             if (!plot.hasOwner()) {
                 if (!Permissions
@@ -544,25 +525,22 @@ public class BlockEventListener implements Listener {
         if (plot == null) {
             return;
         }
-        if (location.getY() >= area.getMaxBuildHeight() || location.getY() < area.getMinBuildHeight()) {
+        if (!area.buildRangeContainsY(location.getY())) {
             event.setCancelled(true);
             return;
         }
-        switch (event.getNewState().getType()) {
+        if (Tag.SNOW.isTagged(event.getNewState().getType())) {
-            case SNOW:
+            if (!plot.getFlag(SnowFormFlag.class)) {
-            case SNOW_BLOCK:
+                plot.debug("Snow could not form because snow-form = false");
-                if (!plot.getFlag(SnowFormFlag.class)) {
+                event.setCancelled(true);
-                    plot.debug("Snow could not form because snow-form = false");
+            }
-                    event.setCancelled(true);
+            return;
-                }
+        }
-                return;
+        if (Tag.ICE.isTagged(event.getNewState().getType())) {
-            case ICE:
+            if (!plot.getFlag(IceFormFlag.class)) {
-            case FROSTED_ICE:
+                plot.debug("Ice could not form because ice-form = false");
-            case PACKED_ICE:
+                event.setCancelled(true);
-                if (!plot.getFlag(IceFormFlag.class)) {
+            }
-                    plot.debug("Ice could not form because ice-form = false");
-                    event.setCancelled(true);
-                }
         }
     }
 
@@ -583,18 +561,12 @@ public class BlockEventListener implements Listener {
             return;
         }
         Class<? extends BooleanFlag<?>> flag;
-        switch (event.getNewState().getType()) {
+        if (Tag.SNOW.isTagged(event.getNewState().getType())) {
-            case SNOW:
+            flag = SnowFormFlag.class;
-            case SNOW_BLOCK:
+        } else if (Tag.ICE.isTagged(event.getNewState().getType())) {
-                flag = SnowFormFlag.class;
+            flag = IceFormFlag.class;
-                break;
+        } else {
-            case ICE:
+            return;
-            case FROSTED_ICE:
-            case PACKED_ICE:
-                flag = IceFormFlag.class;
-                break;
-            default:
-                return; // other blocks are ignored by this event
         }
         boolean allowed = plot.getFlag(flag);
         Entity entity = event.getEntity();
@@ -698,50 +670,33 @@ public class BlockEventListener implements Listener {
             event.setCancelled(true);
             return;
         }
-        switch (block.getType()) {
+        Material blockType = block.getType();
-            case ICE:
+        if (Tag.ICE.isTagged(blockType)) {
-                if (!plot.getFlag(IceMeltFlag.class)) {
+            if (!plot.getFlag(IceMeltFlag.class)) {
-                    plot.debug("Ice could not melt because ice-melt = false");
+                plot.debug("Ice could not melt because ice-melt = false");
-                    event.setCancelled(true);
+                event.setCancelled(true);
-                }
+            }
-                break;
+            return;
-            case SNOW:
+        }
-                if (!plot.getFlag(SnowMeltFlag.class)) {
+        if (Tag.SNOW.isTagged(blockType)) {
-                    plot.debug("Snow could not melt because snow-melt = false");
+            if (!plot.getFlag(SnowMeltFlag.class)) {
-                    event.setCancelled(true);
+                plot.debug("Snow could not melt because snow-melt = false");
-                }
+                event.setCancelled(true);
-                break;
+            }
-            case FARMLAND:
+            return;
-                if (!plot.getFlag(SoilDryFlag.class)) {
+        }
-                    plot.debug("Soil could not dry because soil-dry = false");
+        if (blockType == Material.FARMLAND) {
-                    event.setCancelled(true);
+            if (!plot.getFlag(SoilDryFlag.class)) {
-                }
+                plot.debug("Soil could not dry because soil-dry = false");
-                break;
+                event.setCancelled(true);
-            case TUBE_CORAL_BLOCK:
+            }
-            case BRAIN_CORAL_BLOCK:
+            return;
-            case BUBBLE_CORAL_BLOCK:
+        }
-            case FIRE_CORAL_BLOCK:
+        if (Tag.CORAL_BLOCKS.isTagged(blockType) || Tag.CORALS.isTagged(blockType)) {
-            case HORN_CORAL_BLOCK:
+            if (!plot.getFlag(CoralDryFlag.class)) {
-            case TUBE_CORAL:
+                plot.debug("Coral could not dry because coral-dry = false");
-            case BRAIN_CORAL:
+                event.setCancelled(true);
-            case BUBBLE_CORAL:
+            }
-            case FIRE_CORAL:
-            case HORN_CORAL:
-            case TUBE_CORAL_FAN:
-            case BRAIN_CORAL_FAN:
-            case BUBBLE_CORAL_FAN:
-            case FIRE_CORAL_FAN:
-            case HORN_CORAL_FAN:
-            case BRAIN_CORAL_WALL_FAN:
-            case BUBBLE_CORAL_WALL_FAN:
-            case FIRE_CORAL_WALL_FAN:
-            case HORN_CORAL_WALL_FAN:
-            case TUBE_CORAL_WALL_FAN:
-                if (!plot.getFlag(CoralDryFlag.class)) {
-                    plot.debug("Coral could not dry because coral-dry = false");
-                    event.setCancelled(true);
-                }
-                break;
         }
     }
 
@@ -772,7 +727,7 @@ public class BlockEventListener implements Listener {
             }
             return;
         }
-        if (toLocation.getY() >= toArea.getMaxBuildHeight() || toLocation.getY() < toArea.getMinBuildHeight()) {
+        if (!toArea.buildRangeContainsY(toLocation.getY())) {
             event.setCancelled(true);
             return;
         }
@@ -846,6 +801,11 @@ public class BlockEventListener implements Listener {
             return;
         }
 
+        if (!area.buildRangeContainsY(location.getY())) {
+            event.setCancelled(true);
+            return;
+        }
+
         Plot plot = location.getOwnedPlot();
         if (plot == null || !plot.getFlag(CropGrowFlag.class)) {
             if (plot != null) {
@@ -889,15 +849,16 @@ public class BlockEventListener implements Listener {
         }
         for (Block block1 : event.getBlocks()) {
             Location bloc = BukkitUtil.adapt(block1.getLocation());
-            if (!area.contains(bloc.getX(), bloc.getZ()) || !area.contains(
+            Location newLoc = bloc.add(relative.getBlockX(), relative.getBlockY(), relative.getBlockZ());
-                    bloc.getX() + relative.getBlockX(),
+            if (!area.contains(bloc.getX(), bloc.getZ()) || !area.contains(newLoc)) {
-                    bloc.getZ() + relative.getBlockZ()
-            )) {
                 event.setCancelled(true);
                 return;
             }
-            if (!plot.equals(area.getOwnedPlot(bloc)) || !plot
+            if (!plot.equals(area.getOwnedPlot(bloc)) || !plot.equals(area.getOwnedPlot(newLoc))) {
-                    .equals(area.getOwnedPlot(bloc.add(relative.getBlockX(), relative.getBlockY(), relative.getBlockZ())))) {
+                event.setCancelled(true);
+                return;
+            }
+            if (!area.buildRangeContainsY(bloc.getY()) || !area.buildRangeContainsY(newLoc.getY())) {
                 event.setCancelled(true);
                 return;
             }
@@ -923,9 +884,8 @@ public class BlockEventListener implements Listener {
             }
             for (Block block1 : event.getBlocks()) {
                 Location bloc = BukkitUtil.adapt(block1.getLocation());
-                if (bloc.isPlotArea() || bloc
+                Location newLoc = bloc.add(relative.getBlockX(), relative.getBlockY(), relative.getBlockZ());
-                        .add(relative.getBlockX(), relative.getBlockY(), relative.getBlockZ())
+                if (bloc.isPlotArea() || newLoc.isPlotArea()) {
-                        .isPlotArea()) {
                     event.setCancelled(true);
                     return;
                 }
@@ -939,15 +899,16 @@ public class BlockEventListener implements Listener {
         }
         for (Block block1 : event.getBlocks()) {
             Location bloc = BukkitUtil.adapt(block1.getLocation());
-            if (!area.contains(bloc.getX(), bloc.getZ()) || !area.contains(
+            Location newLoc = bloc.add(relative.getBlockX(), relative.getBlockY(), relative.getBlockZ());
-                    bloc.getX() + relative.getBlockX(),
+            if (!area.contains(bloc.getX(), bloc.getZ()) || !area.contains(newLoc)) {
-                    bloc.getZ() + relative.getBlockZ()
-            )) {
                 event.setCancelled(true);
                 return;
             }
-            if (!plot.equals(area.getOwnedPlot(bloc)) || !plot
+            if (!plot.equals(area.getOwnedPlot(bloc)) || !plot.equals(area.getOwnedPlot(newLoc))) {
-                    .equals(area.getOwnedPlot(bloc.add(relative.getBlockX(), relative.getBlockY(), relative.getBlockZ())))) {
+                event.setCancelled(true);
+                return;
+            }
+            if (!area.buildRangeContainsY(bloc.getY()) || !area.buildRangeContainsY(newLoc.getY())) {
                 event.setCancelled(true);
                 return;
             }
@@ -971,6 +932,11 @@ public class BlockEventListener implements Listener {
                 Location location = BukkitUtil.adapt(event.getBlock().getRelative(targetFace).getLocation());
                 if (location.isPlotRoad()) {
                     event.setCancelled(true);
+                    return;
+                }
+                PlotArea area = location.getPlotArea();
+                if (area != null && !area.buildRangeContainsY(location.getY())) {
+                    event.setCancelled(true);
                 }
             }
         }
@@ -1010,6 +976,10 @@ public class BlockEventListener implements Listener {
                 Plot plot = area.getOwnedPlot(location);
                 if (!Objects.equals(plot, origin)) {
                     event.getBlocks().remove(i);
+                    continue;
+                }
+                if (!area.buildRangeContainsY(location.getY())) {
+                    event.getBlocks().remove(i);
                 }
             }
         }
@@ -1101,6 +1071,10 @@ public class BlockEventListener implements Listener {
         Plot plot = area.getOwnedPlot(location1);
         if (player != null) {
             BukkitPlayer pp = BukkitUtil.adapt(player);
+            if (area.notifyIfOutsideBuildArea(pp, location1.getY())) {
+                event.setCancelled(true);
+                return;
+            }
             if (plot == null) {
                 if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_BUILD_ROAD)) {
                     pp.sendMessage(
@@ -1208,7 +1182,10 @@ public class BlockEventListener implements Listener {
                     return true;
                 }
                 Plot plot = area.getOwnedPlot(blockLocation);
-                return !Objects.equals(plot, origin);
+                if (!Objects.equals(plot, origin)) {
+                    return true;
+                }
+                return !area.buildRangeContainsY(location.getY());
             });
         }
         if (blocks.isEmpty()) {
@@ -1250,15 +1227,7 @@ public class BlockEventListener implements Listener {
                 event.setCancelled(true);
                 break;
             }
-            if (Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_BUILD_HEIGHT_LIMIT)) {
+            if (area.notifyIfOutsideBuildArea(pp, currentLocation.getY())) {
-                continue;
-            }
-            if (currentLocation.getY() >= area.getMaxBuildHeight() || currentLocation.getY() < area.getMinBuildHeight()) {
-                pp.sendMessage(
-                        TranslatableCaption.of("height.height_limit"),
-                        Template.of("minHeight", String.valueOf(area.getMinBuildHeight())),
-                        Template.of("maxHeight", String.valueOf(area.getMaxBuildHeight()))
-                );
                 event.setCancelled(true);
                 break;
             }

Bukkit/src/main/java/com/plotsquared/bukkit/listener/BlockEventListener117.java

@@ -26,6 +26,7 @@ import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
 import com.plotsquared.core.plot.flag.implementations.CopperOxideFlag;
 import com.plotsquared.core.plot.flag.implementations.MiscInteractFlag;
+import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Item;
@@ -39,11 +40,31 @@ import org.bukkit.event.block.BlockReceiveGameEvent;
 
 import java.util.List;
 import java.util.Objects;
+import java.util.Set;
 import java.util.UUID;
 
 @SuppressWarnings("unused")
 public class BlockEventListener117 implements Listener {
 
+    private static final Set<Material> COPPER_OXIDIZING = Set.of(
+            Material.COPPER_BLOCK,
+            Material.EXPOSED_COPPER,
+            Material.WEATHERED_COPPER,
+            Material.OXIDIZED_COPPER,
+            Material.CUT_COPPER,
+            Material.EXPOSED_CUT_COPPER,
+            Material.WEATHERED_CUT_COPPER,
+            Material.OXIDIZED_CUT_COPPER,
+            Material.CUT_COPPER_STAIRS,
+            Material.EXPOSED_CUT_COPPER_STAIRS,
+            Material.WEATHERED_CUT_COPPER_STAIRS,
+            Material.OXIDIZED_CUT_COPPER_STAIRS,
+            Material.CUT_COPPER_SLAB,
+            Material.EXPOSED_CUT_COPPER_SLAB,
+            Material.WEATHERED_CUT_COPPER_SLAB,
+            Material.OXIDIZED_CUT_COPPER_SLAB
+    );
+
     @Inject
     public BlockEventListener117() {
     }
@@ -59,10 +80,19 @@ public class BlockEventListener117 implements Listener {
             return;
         }
 
+        BukkitPlayer plotPlayer = null;
+
+        if (entity instanceof Player player) {
+            plotPlayer = BukkitUtil.adapt(player);
+            if (area.notifyIfOutsideBuildArea(plotPlayer, location.getY())) {
+                event.setCancelled(true);
+                return;
+            }
+        }
+
         Plot plot = location.getOwnedPlot();
         if (plot == null || !plot.getFlag(MiscInteractFlag.class)) {
-            if (entity instanceof Player player) {
+            if (plotPlayer != null) {
-                BukkitPlayer plotPlayer = BukkitUtil.adapt(player);
                 if (plot != null) {
                     if (!plot.isAdded(plotPlayer.getUUID())) {
                         plot.debug(plotPlayer.getName() + " couldn't trigger sculk sensors because misc-interact = false");
@@ -94,12 +124,12 @@ public class BlockEventListener117 implements Listener {
         PlotArea area = location.getPlotArea();
         if (area == null) {
             for (int i = blocks.size() - 1; i >= 0; i--) {
-                location = BukkitUtil.adapt(blocks.get(i).getLocation());
+                Location blockLocation = BukkitUtil.adapt(blocks.get(i).getLocation());
-                if (location.isPlotArea()) {
+                blockLocation = BukkitUtil.adapt(blocks.get(i).getLocation());
+                if (blockLocation.isPlotArea()) {
                     blocks.remove(i);
                 }
             }
-            return;
         } else {
             Plot origin = area.getOwnedPlot(location);
             if (origin == null) {
@@ -107,27 +137,19 @@ public class BlockEventListener117 implements Listener {
                 return;
             }
             for (int i = blocks.size() - 1; i >= 0; i--) {
-                location = BukkitUtil.adapt(blocks.get(i).getLocation());
+                Location blockLocation = BukkitUtil.adapt(blocks.get(i).getLocation());
-                if (!area.contains(location.getX(), location.getZ())) {
+                if (!area.contains(blockLocation.getX(), blockLocation.getZ())) {
                     blocks.remove(i);
                     continue;
                 }
-                Plot plot = area.getOwnedPlot(location);
+                Plot plot = area.getOwnedPlot(blockLocation);
                 if (!Objects.equals(plot, origin)) {
                     event.getBlocks().remove(i);
+                    continue;
+                }
+                if (!area.buildRangeContainsY(location.getY())) {
+                    event.getBlocks().remove(i);
                 }
-            }
-        }
-        Plot origin = area.getPlot(location);
-        if (origin == null) {
-            event.setCancelled(true);
-            return;
-        }
-        for (int i = blocks.size() - 1; i >= 0; i--) {
-            location = BukkitUtil.adapt(blocks.get(i).getLocation());
-            Plot plot = area.getOwnedPlot(location);
-            if (!Objects.equals(plot, origin) && (!plot.isMerged() && !origin.isMerged())) {
-                event.getBlocks().remove(i);
             }
         }
     }
@@ -148,27 +170,11 @@ public class BlockEventListener117 implements Listener {
         if (plot == null) {
             return;
         }
-        switch (event.getNewState().getType()) {
+        if (COPPER_OXIDIZING.contains(event.getNewState().getType())) {
-            case COPPER_BLOCK:
+            if (!plot.getFlag(CopperOxideFlag.class)) {
-            case EXPOSED_COPPER:
+                plot.debug("Copper could not oxide because copper-oxide = false");
-            case WEATHERED_COPPER:
+                event.setCancelled(true);
-            case OXIDIZED_COPPER:
+            }
-            case CUT_COPPER:
-            case EXPOSED_CUT_COPPER:
-            case WEATHERED_CUT_COPPER:
-            case OXIDIZED_CUT_COPPER:
-            case CUT_COPPER_STAIRS:
-            case EXPOSED_CUT_COPPER_STAIRS:
-            case WEATHERED_CUT_COPPER_STAIRS:
-            case OXIDIZED_CUT_COPPER_STAIRS:
-            case CUT_COPPER_SLAB:
-            case EXPOSED_CUT_COPPER_SLAB:
-            case WEATHERED_CUT_COPPER_SLAB:
-            case OXIDIZED_CUT_COPPER_SLAB:
-                if (!plot.getFlag(CopperOxideFlag.class)) {
-                    plot.debug("Copper could not oxide because copper-oxide = false");
-                    event.setCancelled(true);
-                }
         }
     }
 

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

@@ -124,17 +124,17 @@ public class EntitySpawnListener implements Listener {
             return;
         }
         Plot plot = location.getOwnedPlotAbs();
+        EntityType type = entity.getType();
         if (plot == null) {
-            EntityType type = entity.getType();
             if (!area.isMobSpawning()) {
-                switch (type) {
+                if (type == EntityType.PLAYER) {
-                    case DROPPED_ITEM:
+                    return;
-                        if (Settings.Enabled_Components.KILL_ROAD_ITEMS) {
+                }
-                            event.setCancelled(true);
+                if (type == EntityType.DROPPED_ITEM) {
-                            return;
+                    if (Settings.Enabled_Components.KILL_ROAD_ITEMS) {
-                        }
+                        event.setCancelled(true);
-                    case PLAYER:
+                    }
-                        return;
+                    return;
                 }
                 if (type.isAlive()) {
                     event.setCancelled(true);
@@ -148,15 +148,16 @@ public class EntitySpawnListener implements Listener {
         if (Settings.Done.RESTRICT_BUILDING && DoneFlag.isDone(plot)) {
             event.setCancelled(true);
         }
-        switch (entity.getType()) {
+        if (type == EntityType.ENDER_CRYSTAL) {
-            case ENDER_CRYSTAL:
+            if (BukkitEntityUtil.checkEntity(entity, plot)) {
-                if (BukkitEntityUtil.checkEntity(entity, plot)) {
+                event.setCancelled(true);
-                    event.setCancelled(true);
+            }
-                }
+            return;
-            case SHULKER:
+        }
-                if (!entity.hasMetadata("shulkerPlot")) {
+        if (type == EntityType.SHULKER) {
-                    entity.setMetadata("shulkerPlot", new FixedMetadataValue((Plugin) PlotSquared.platform(), plot.getId()));
+            if (!entity.hasMetadata("shulkerPlot")) {
-                }
+                entity.setMetadata("shulkerPlot", new FixedMetadataValue((Plugin) PlotSquared.platform(), plot.getId()));
+            }
         }
     }
 

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

@@ -230,15 +230,15 @@ public class PaperListener implements Listener {
         if (plot == null) {
             EntityType type = event.getType();
             if (!area.isMobSpawning()) {
-                switch (type) {
+                if (type == EntityType.PLAYER) {
-                    case DROPPED_ITEM:
+                    return;
-                        if (Settings.Enabled_Components.KILL_ROAD_ITEMS) {
+                }
-                            event.setShouldAbortSpawn(true);
+                if (type == EntityType.DROPPED_ITEM) {
-                            event.setCancelled(true);
+                    if (Settings.Enabled_Components.KILL_ROAD_ITEMS) {
-                            return;
+                        event.setShouldAbortSpawn(true);
-                        }
+                        event.setCancelled(true);
-                    case PLAYER:
+                    }
-                        return;
+                    return;
                 }
                 if (type.isAlive()) {
                     event.setShouldAbortSpawn(true);

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

@@ -82,6 +82,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.FluidCollisionMode;
 import org.bukkit.Material;
+import org.bukkit.Tag;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
 import org.bukkit.block.BlockState;
@@ -145,23 +146,36 @@ import org.bukkit.util.Vector;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
 import java.lang.reflect.Field;
-import java.util.ArrayList;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
 import java.util.Set;
 import java.util.UUID;
-import java.util.regex.Pattern;
 
 /**
  * Player Events involving plots.
  */
 @SuppressWarnings("unused")
-public class PlayerEventListener extends PlotListener implements Listener {
+public class PlayerEventListener implements Listener {
 
+    private static final Set<Material> MINECARTS = Set.of(
+            Material.MINECART,
+            Material.TNT_MINECART,
+            Material.CHEST_MINECART,
+            Material.COMMAND_BLOCK_MINECART,
+            Material.FURNACE_MINECART,
+            Material.HOPPER_MINECART
+    );
+    private static final Set<Material> BOOKS = Set.of(
+            Material.BOOK,
+            Material.KNOWLEDGE_BOOK,
+            Material.WRITABLE_BOOK,
+            Material.WRITTEN_BOOK
+    );
     private final EventDispatcher eventDispatcher;
     private final WorldEdit worldEdit;
     private final PlotAreaManager plotAreaManager;
+    private final PlotListener plotListener;
     // To prevent recursion
     private boolean tmpTeleport = true;
     private Field fieldPlayer;
@@ -181,12 +195,13 @@ public class PlayerEventListener extends PlotListener implements Listener {
     public PlayerEventListener(
             final @NonNull PlotAreaManager plotAreaManager,
             final @NonNull EventDispatcher eventDispatcher,
-            final @NonNull WorldEdit worldEdit
+            final @NonNull WorldEdit worldEdit,
+            final @NonNull PlotListener plotListener
     ) {
-        super(eventDispatcher);
         this.eventDispatcher = eventDispatcher;
         this.worldEdit = worldEdit;
         this.plotAreaManager = plotAreaManager;
+        this.plotListener = plotListener;
     }
 
     @EventHandler
@@ -339,7 +354,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
         if (area != null) {
             Plot plot = area.getPlot(location);
             if (plot != null) {
-                plotEntry(pp, plot);
+                plotListener.plotEntry(pp, plot);
             }
         }
         // Delayed
@@ -391,7 +406,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
                 PlotArea area = location.getPlotArea();
                 if (area == null) {
                     if (lastPlot != null) {
-                        plotExit(pp, lastPlot);
+                        plotListener.plotExit(pp, lastPlot);
                         lastPlotAccess.remove();
                     }
                     try (final MetaDataAccess<Location> lastLocationAccess =
@@ -525,7 +540,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
             if (now == null) {
                 try (final MetaDataAccess<Boolean> kickAccess =
                              pp.accessTemporaryMetaData(PlayerMetaDataKeys.TEMPORARY_KICK)) {
-                    if (lastPlot != null && !plotExit(pp, lastPlot) && this.tmpTeleport && !kickAccess.get().orElse(false)) {
+                    if (lastPlot != null && !plotListener.plotExit(pp, lastPlot) && this.tmpTeleport && !kickAccess.get().orElse(false)) {
                         pp.sendMessage(
                                 TranslatableCaption.of("permission.no_permission_event"),
                                 Template.of("node", String.valueOf(Permission.PERMISSION_ADMIN_EXIT_DENIED))
@@ -543,7 +558,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
                 }
             } else if (now.equals(lastPlot)) {
                 ForceFieldListener.handleForcefield(player, pp, now);
-            } else if (!plotEntry(pp, now) && this.tmpTeleport) {
+            } else if (!plotListener.plotEntry(pp, now) && this.tmpTeleport) {
                 pp.sendMessage(
                         TranslatableCaption.of("deny.no_enter"),
                         Template.of("plot", now.toString())
@@ -615,7 +630,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
             if (plot == null) {
                 try (final MetaDataAccess<Boolean> kickAccess =
                              pp.accessTemporaryMetaData(PlayerMetaDataKeys.TEMPORARY_KICK)) {
-                    if (lastPlot != null && !plotExit(pp, lastPlot) && this.tmpTeleport && !kickAccess.get().orElse(false)) {
+                    if (lastPlot != null && !plotListener.plotExit(pp, lastPlot) && this.tmpTeleport && !kickAccess.get().orElse(false)) {
                         pp.sendMessage(
                                 TranslatableCaption.of("permission.no_permission_event"),
                                 Template.of("node", String.valueOf(Permission.PERMISSION_ADMIN_EXIT_DENIED))
@@ -633,7 +648,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
                 }
             } else if (plot.equals(lastPlot)) {
                 ForceFieldListener.handleForcefield(player, pp, plot);
-            } else if (!plotEntry(pp, plot) && this.tmpTeleport) {
+            } else if (!plotListener.plotEntry(pp, plot) && this.tmpTeleport) {
                 pp.sendMessage(
                         TranslatableCaption.of("deny.no_enter"),
                         Template.of("plot", plot.toString())
@@ -780,7 +795,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
             lastLocationAccess.remove();
         }
         if (plot != null) {
-            plotExit(pp, plot);
+            plotListener.plotExit(pp, plot);
         }
         if (this.worldEdit != null) {
             if (!Permissions.hasPermission(pp, Permission.PERMISSION_WORLDEDIT_BYPASS)) {
@@ -794,7 +809,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
         if (location.isPlotArea()) {
             plot = location.getPlot();
             if (plot != null) {
-                plotEntry(pp, plot);
+                plotListener.plotEntry(pp, plot);
             }
         }
     }
@@ -830,10 +845,10 @@ public class PlayerEventListener extends PlotListener implements Listener {
         if ((slot > 8) || !event.getEventName().equals("InventoryCreativeEvent")) {
             return;
         }
-        ItemStack current = inv.getItemInHand();
+        ItemStack oldItem = inv.getItemInHand();
+        ItemMeta oldMeta = oldItem.getItemMeta();
         ItemStack newItem = event.getCursor();
         ItemMeta newMeta = newItem.getItemMeta();
-        ItemMeta oldMeta = newItem.getItemMeta();
 
         if (event.getClick() == ClickType.CREATIVE) {
             final Plot plot = pp.getCurrentPlot();
@@ -873,34 +888,26 @@ public class PlayerEventListener extends PlotListener implements Listener {
                 oldLore = lore.toString();
             }
         }
-        if (!"[(+NBT)]".equals(newLore) || (current.equals(newItem) && newLore.equals(oldLore))) {
+        Material itemType = newItem.getType();
-            switch (newItem.getType()) {
+        if (!"[(+NBT)]".equals(newLore) || (oldItem.equals(newItem) && newLore.equals(oldLore))) {
-                case LEGACY_BANNER:
+            if (newMeta == null || (itemType != Material.LEGACY_BANNER && itemType != Material.PLAYER_HEAD)) {
-                case PLAYER_HEAD:
+                return;
-                    if (newMeta != null) {
-                        break;
-                    }
-                default:
-                    return;
             }
         }
         Block block = player.getTargetBlock(null, 7);
         org.bukkit.block.BlockState state = block.getState();
         Material stateType = state.getType();
-        Material itemType = newItem.getType();
         if (stateType != itemType) {
-            switch (stateType) {
+            if (stateType == Material.LEGACY_WALL_BANNER || stateType == Material.LEGACY_STANDING_BANNER) {
-                case LEGACY_STANDING_BANNER:
+                if (itemType != Material.LEGACY_BANNER) {
-                case LEGACY_WALL_BANNER:
-                    if (itemType == Material.LEGACY_BANNER) {
-                        break;
-                    }
-                case LEGACY_SKULL:
-                    if (itemType == Material.LEGACY_SKULL_ITEM) {
-                        break;
-                    }
-                default:
                     return;
+                }
+            } else if (stateType == Material.LEGACY_SKULL) {
+                if (itemType != Material.LEGACY_SKULL_ITEM) {
+                    return;
+                }
+            } else {
+                return;
             }
         }
         Location location = BukkitUtil.adapt(state.getLocation());
@@ -939,7 +946,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
             }
         }
         if (cancelled) {
-            if ((current.getType() == newItem.getType()) && (current.getDurability() == newItem
+            if ((oldItem.getType() == newItem.getType()) && (oldItem.getDurability() == newItem
                     .getDurability())) {
                 event.setCursor(
                         new ItemStack(newItem.getType(), newItem.getAmount(), newItem.getDurability()));
@@ -1126,14 +1133,21 @@ public class PlayerEventListener extends PlotListener implements Listener {
                     //Allow all players to eat while also allowing the block place event ot be fired
                     return;
                 }
-                switch (type) {
+                if (type == Material.ARMOR_STAND) {
-                    case ACACIA_BOAT, BIRCH_BOAT, CHEST_MINECART, COMMAND_BLOCK_MINECART, DARK_OAK_BOAT, FURNACE_MINECART, HOPPER_MINECART, JUNGLE_BOAT, MINECART, OAK_BOAT, SPRUCE_BOAT, TNT_MINECART -> eventType = PlayerBlockEventType.PLACE_VEHICLE;
+                    location = BukkitUtil.adapt(block.getRelative(event.getBlockFace()).getLocation());
-                    case FIREWORK_ROCKET, FIREWORK_STAR -> eventType = PlayerBlockEventType.SPAWN_MOB;
+                    eventType = PlayerBlockEventType.PLACE_MISC;
-                    case BOOK, KNOWLEDGE_BOOK, WRITABLE_BOOK, WRITTEN_BOOK -> eventType = PlayerBlockEventType.READ;
+                }
-                    case ARMOR_STAND -> {
+                if (Tag.ITEMS_BOATS.isTagged(type) || MINECARTS.contains(type)) {
-                        location = BukkitUtil.adapt(block.getRelative(event.getBlockFace()).getLocation());
+                    eventType = PlayerBlockEventType.PLACE_VEHICLE;
-                        eventType = PlayerBlockEventType.PLACE_MISC;
+                    break;
-                    }
+                }
+                if (type == Material.FIREWORK_ROCKET || type == Material.FIREWORK_STAR) {
+                    eventType = PlayerBlockEventType.SPAWN_MOB;
+                    break;
+                }
+                if (BOOKS.contains(type)) {
+                    eventType = PlayerBlockEventType.READ;
+                    break;
                 }
                 break;
             }
@@ -1268,7 +1282,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
         TaskManager.removeFromTeleportQueue(event.getPlayer().getName());
         BukkitPlayer pp = BukkitUtil.adapt(event.getPlayer());
         pp.unregister();
-        this.logout(pp.getUUID());
+        plotListener.logout(pp.getUUID());
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
@@ -1705,6 +1719,7 @@ public class PlayerEventListener extends PlotListener implements Listener {
         if (PlotSquared.get().getPlotAreaManager().getPlotAreasSet(world).size() == 0) {
             return;
         }
+        BukkitPlayer pp = (event.getEntity() instanceof Player player) ? BukkitUtil.adapt(player) : null;
         int minX = Integer.MAX_VALUE;
         int maxX = Integer.MIN_VALUE;
         int minZ = Integer.MAX_VALUE;
@@ -1726,6 +1741,10 @@ public class PlayerEventListener extends PlotListener implements Listener {
             if (area == null) {
                 continue;
             }
+            if (area.notifyIfOutsideBuildArea(pp, location.getY())) {
+                event.setCancelled(true);
+                return;
+            }
             Plot plot = location.getOwnedPlot();
             if (plot == null) {
                 if (area.isRoadFlags() && area.getRoadFlag(DenyPortalsFlag.class)) {

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

@@ -149,6 +149,18 @@ public class ProjectileEventListener implements Listener {
         Plot plot = area.getPlot(location);
         ProjectileSource shooter = entity.getShooter();
         if (shooter instanceof Player) {
+            if (!((Player) shooter).isOnline()) {
+                if (plot != null) {
+                    if (plot.isAdded(((Player) shooter).getUniqueId()) || plot.getFlag(ProjectilesFlag.class)) {
+                        return;
+                    }
+                }
+
+                entity.remove();
+                event.setCancelled(true);
+                return;
+            }
+
             PlotPlayer<?> pp = BukkitUtil.adapt((Player) shooter);
             if (plot == null) {
                 if (!Permissions.hasPermission(pp, Permission.PERMISSION_ADMIN_PROJECTILE_UNOWNED)) {

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

@@ -19,12 +19,12 @@
 package com.plotsquared.bukkit.queue;
 
 import com.google.common.base.Preconditions;
+import com.intellectualsites.annotations.DoNotUse;
 import com.plotsquared.bukkit.util.BukkitBlockUtil;
 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;
@@ -44,7 +44,7 @@ import org.checkerframework.checker.nullness.qual.Nullable;
 
 import java.util.Arrays;
 
-@AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+@DoNotUse
 public class GenChunk extends ScopedQueueCoordinator {
 
     public final Biome[] biomes;

Core/build.gradle.kts

@@ -43,6 +43,7 @@ dependencies {
     api(libs.cloudServices)
     api(libs.arkitektonika)
     api("com.intellectualsites.paster:Paster")
+    api("com.intellectualsites.informative-annotations:informative-annotations")
 }
 
 tasks.processResources {
@@ -62,5 +63,6 @@ tasks {
         opt.links("https://jd.adventure.kyori.net/api/4.9.3/")
         opt.links("https://google.github.io/guice/api-docs/" + libs.guice.get().versionConstraint.toString() + "/javadoc/")
         opt.links("https://checkerframework.org/api/")
+        opt.links("https://javadoc.io/doc/com.intellectualsites.informative-annotations/informative-annotations/latest/")
     }
 }

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

@@ -22,6 +22,7 @@ import cloud.commandframework.services.ServicePipeline;
 import com.google.inject.Injector;
 import com.google.inject.Key;
 import com.google.inject.TypeLiteral;
+import com.intellectualsites.annotations.DoNotUse;
 import com.plotsquared.core.backup.BackupManager;
 import com.plotsquared.core.configuration.caption.LocaleHolder;
 import com.plotsquared.core.generator.GeneratorWrapper;
@@ -33,7 +34,6 @@ import com.plotsquared.core.permissions.PermissionHandler;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.world.PlotAreaManager;
 import com.plotsquared.core.queue.GlobalBlockQueue;
-import com.plotsquared.core.util.AnnotationHelper;
 import com.plotsquared.core.util.ChunkManager;
 import com.plotsquared.core.util.EconHandler;
 import com.plotsquared.core.util.PlatformWorldManager;
@@ -308,7 +308,7 @@ public interface PlotPlatform<P> extends LocaleHolder {
      * @return worldedit implementations
      * @since 6.3.0
      */
-    @AnnotationHelper.ApiDescription(info = "Internal use only")
+    @DoNotUse
     @NonNull String worldEditImplementations();
 
     /**

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

@@ -20,6 +20,7 @@ package com.plotsquared.core.generator;
 
 import com.google.inject.Inject;
 import com.google.inject.assistedinject.Assisted;
+import com.intellectualsites.annotations.DoNotUse;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.ConfigurationSection;
 import com.plotsquared.core.configuration.Settings;
@@ -33,7 +34,6 @@ import com.plotsquared.core.plot.PlotId;
 import com.plotsquared.core.plot.PlotManager;
 import com.plotsquared.core.plot.schematic.Schematic;
 import com.plotsquared.core.queue.GlobalBlockQueue;
-import com.plotsquared.core.util.AnnotationHelper;
 import com.plotsquared.core.util.FileUtils;
 import com.plotsquared.core.util.MathMan;
 import com.plotsquared.core.util.SchematicHandler;
@@ -531,7 +531,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
      *
      * @since 6.9.0
      */
-    @AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+    @DoNotUse
     public @Nullable List<Entity> getPlotSchematicEntities() {
         return schem3Entities;
     }
@@ -541,7 +541,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
      *
      * @since 6.9.0
      */
-    @AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+    @DoNotUse
     public @Nullable BlockVector3 getPlotSchematicMinPoint() {
         return schem3MinPoint;
     }
@@ -551,7 +551,7 @@ public class HybridPlotWorld extends ClassicPlotWorld {
      *
      * @since 6.9.0
      */
-    @AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+    @DoNotUse
     public boolean populationNeeded() {
         return schem1PopulationNeeded || schem2PopulationNeeded || schem3PopulationNeeded;
     }

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

@@ -189,13 +189,13 @@ public class HybridUtils {
                 if (X == ctx) {
                     maxX = tx & 15;
                 } else {
-                    maxX = 16;
+                    maxX = 15;
                 }
                 int maxZ;
                 if (Z == ctz) {
                     maxZ = tz & 15;
                 } else {
-                    maxZ = 16;
+                    maxZ = 15;
                 }
 
                 int chunkBlockX = X << 4;
@@ -221,7 +221,7 @@ public class HybridUtils {
                 }
             });
 
-            final Runnable run = () -> TaskManager.runTaskAsync(() -> {
+            final Runnable run = () -> {
                 int size = width * length;
                 int[] changes = new int[size];
                 int[] faces = new int[size];
@@ -296,7 +296,7 @@ public class HybridUtils {
                 analysis.variety_sd = (int) (MathMan.getSD(variety, analysis.variety) * 100);
                 whenDone.value = analysis;
                 whenDone.run();
-            });
+            };
             queue.setCompleteTask(run);
             queue.enqueue();
         });

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

@@ -18,7 +18,7 @@
  */
 package com.plotsquared.core.location;
 
-import com.plotsquared.core.util.AnnotationHelper;
+import com.intellectualsites.annotations.DoNotUse;
 import com.sk89q.worldedit.math.BlockVector3;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
@@ -28,7 +28,7 @@ import org.checkerframework.checker.nullness.qual.NonNull;
  *
  * @since 6.9.0
  */
-@AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+@DoNotUse
 public final class UncheckedWorldLocation extends Location {
 
     private final String worldName;
@@ -54,7 +54,7 @@ public final class UncheckedWorldLocation extends Location {
      *
      * @since 6.9.0
      */
-    @AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+    @DoNotUse
     public static @NonNull UncheckedWorldLocation at(
             final @NonNull String world, final int x, final int y, final int z
     ) {
@@ -62,7 +62,7 @@ public final class UncheckedWorldLocation extends Location {
     }
 
     @Override
-    @AnnotationHelper.ApiDescription(info = "Internal use only. Subject to changes at any time.")
+    @DoNotUse
     public @NonNull String getWorldName() {
         return this.worldName;
     }

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

@@ -36,6 +36,7 @@ import com.plotsquared.core.location.BlockLoc;
 import com.plotsquared.core.location.Direction;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.location.PlotLoc;
+import com.plotsquared.core.permissions.Permission;
 import com.plotsquared.core.player.ConsolePlayer;
 import com.plotsquared.core.player.MetaDataAccess;
 import com.plotsquared.core.player.PlayerMetaDataKeys;
@@ -48,6 +49,7 @@ import com.plotsquared.core.plot.flag.implementations.DoneFlag;
 import com.plotsquared.core.queue.GlobalBlockQueue;
 import com.plotsquared.core.queue.QueueCoordinator;
 import com.plotsquared.core.util.MathMan;
+import com.plotsquared.core.util.Permissions;
 import com.plotsquared.core.util.PlotExpression;
 import com.plotsquared.core.util.RegionUtil;
 import com.plotsquared.core.util.StringMan;
@@ -624,6 +626,38 @@ public abstract class PlotArea {
                 getRegionAbs() == null || this.region.contains(location.getBlockVector3()));
     }
 
+    /**
+     * Get if the {@code PlotArea}'s build range (min build height -> max build height) contains the given y value
+     *
+     * @param y y height
+     * @return if build height contains y
+     */
+    public boolean buildRangeContainsY(int y) {
+        return y >= minBuildHeight && y < maxBuildHeight;
+    }
+
+    /**
+     * Utility method to check if the player is attempting to place blocks outside the build area, and notify of this if the
+     * player does not have permissions.
+     *
+     * @param player Player to check
+     * @param y      y height to check
+     * @return true if outside build area with no permissions
+     * @since TODO
+     */
+    public boolean notifyIfOutsideBuildArea(PlotPlayer<?> player, int y) {
+        if (!buildRangeContainsY(y) && !Permissions.hasPermission(player, Permission.PERMISSION_ADMIN_BUILD_HEIGHT_LIMIT)) {
+            player.sendMessage(
+                    TranslatableCaption.of("height.height_limit"),
+                    Template.of("minHeight", String.valueOf(minBuildHeight)),
+                    Template.of("maxHeight", String.valueOf(maxBuildHeight))
+            );
+            // Return true if "failed" as the method will always be inverted otherwise
+            return true;
+        }
+        return false;
+    }
+
     public @NonNull Set<Plot> getPlotsAbs(final UUID uuid) {
         if (uuid == null) {
             return Collections.emptySet();

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

@@ -20,8 +20,8 @@ package com.plotsquared.core.plot.flag;
 
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ImmutableMap;
+import com.intellectualsites.annotations.NotPublic;
 import com.plotsquared.core.configuration.caption.CaptionUtility;
-import com.plotsquared.core.util.AnnotationHelper;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 import org.checkerframework.checker.nullness.qual.NonNull;
@@ -32,7 +32,6 @@ import java.util.HashMap;
 import java.util.HashSet;
 import java.util.Locale;
 import java.util.Map;
-import java.util.Objects;
 
 /**
  * Container type for {@link PlotFlag plot flags}.
@@ -353,7 +352,7 @@ public class FlagContainer {
      * @return a new Runnable that cleans up once the FlagContainer isn't needed anymore.
      * @since 6.0.10
      */
-    @AnnotationHelper.ApiDescription(info = "This method should not be considered as public or API.")
+    @NotPublic
     public Runnable createCleanupHook() {
         return () -> GlobalFlagContainer.getInstance().unsubscribe(unknownsRef);
     }

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

@@ -18,8 +18,8 @@
  */
 package com.plotsquared.core.queue;
 
+import com.intellectualsites.annotations.DoNotUse;
 import com.plotsquared.core.location.Location;
-import com.plotsquared.core.util.AnnotationHelper;
 import com.sk89q.jnbt.CompoundTag;
 import com.sk89q.worldedit.function.pattern.Pattern;
 import com.sk89q.worldedit.math.BlockVector3;
@@ -37,7 +37,7 @@ import org.checkerframework.checker.nullness.qual.Nullable;
  * in {@link BlockArrayCacheScopedQueueCoordinator#setOffsetX(int)} and
  * {@link BlockArrayCacheScopedQueueCoordinator#setOffsetZ(int)}
  */
-@AnnotationHelper.ApiDescription(info = "Internal use only. Subject to change at any time and created for specific use cases.")
+@DoNotUse
 public class BlockArrayCacheScopedQueueCoordinator extends ScopedQueueCoordinator {
 
     private final BlockState[][][] blockStates;

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

@@ -1,55 +0,0 @@
-/*
- * PlotSquared, a land and world management plugin for Minecraft.
- * Copyright (C) IntellectualSites <https://intellectualsites.com>
- * Copyright (C) IntellectualSites team and contributors
- *
- * 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.util;
-
-import java.lang.annotation.Documented;
-import java.lang.annotation.Retention;
-import java.lang.annotation.RetentionPolicy;
-import java.lang.annotation.Target;
-
-import static java.lang.annotation.ElementType.METHOD;
-import static java.lang.annotation.ElementType.MODULE;
-import static java.lang.annotation.ElementType.PACKAGE;
-import static java.lang.annotation.ElementType.RECORD_COMPONENT;
-import static java.lang.annotation.ElementType.TYPE;
-
-/**
- * @since 6.2.2
- */
-@AnnotationHelper.ApiDescription(info = "An internal class for custom annotations." +
-        "This is in no form part of the API and is subject to change at any time.")
-public final class AnnotationHelper {
-
-    private AnnotationHelper() {
-    }
-
-    @Documented
-    @Retention(RetentionPolicy.CLASS)
-    @Target(value = {METHOD, PACKAGE, MODULE, RECORD_COMPONENT, TYPE})
-    public @interface ApiDescription {
-        /**
-         * Returns additional information how to use a class for the API
-         *
-         * @return the version string
-         * @since 6.2.2
-         */
-        String info() default "";
-    }
-
-}

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

@@ -19,6 +19,7 @@
 package com.plotsquared.core.util;
 
 import com.google.common.eventbus.EventBus;
+import com.intellectualsites.annotations.DoNotUse;
 import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.configuration.caption.TranslatableCaption;
 import com.plotsquared.core.events.PlayerAutoPlotEvent;
@@ -81,8 +82,7 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.UUID;
 
-@AnnotationHelper.ApiDescription(info = "This is an internal class used by PlotSquared to dispatch events." +
+@DoNotUse
-        "This is in no form part of the API and is subject to change at any time.")
 public class EventDispatcher {
 
     private final EventBus eventBus = new EventBus("PlotSquaredEvents");
@@ -332,6 +332,15 @@ public class EventDispatcher {
     ) {
         PlotArea area = location.getPlotArea();
         assert area != null;
+        if (!area.buildRangeContainsY(location.getY()) && !Permissions
+                .hasPermission(player, Permission.PERMISSION_ADMIN_BUILD_HEIGHT_LIMIT)) {
+            player.sendMessage(
+                    TranslatableCaption.of("height.height_limit"),
+                    Template.of("minHeight", String.valueOf(area.getMinBuildHeight())),
+                    Template.of("maxHeight", String.valueOf(area.getMaxBuildHeight()))
+            );
+            return false;
+        }
         Plot plot = area.getPlot(location);
         if (plot != null) {
             if (plot.isAdded(player.getUUID())) {

build.gradle.kts

@@ -65,7 +65,7 @@ subprojects {
     }
 
     dependencies {
-        implementation(platform("com.intellectualsites.bom:bom-1.18.x:1.5"))
+        implementation(platform("com.intellectualsites.bom:bom-1.18.x:1.7"))
     }
 
     dependencies {

gradle/libs.versions.toml

@@ -1,7 +1,6 @@
 [versions]
 # Platform expectations
 paper = "1.18.1-R0.1-SNAPSHOT"
-checker-qual = "3.22.0"
 guice = "5.1.0"
 spotbugs = "4.7.0"
 
@@ -15,7 +14,7 @@ mvdwapi = "3.1.1"
 # Third party
 prtree = "2.0.0"
 aopalliance = "1.0"
-cloud-services = "1.6.2"
+cloud-services = "1.7.0"
 arkitektonika = "2.1.1"
 squirrelid = "0.3.1"
 http4j = "1.3"
@@ -29,7 +28,6 @@ nexus = "1.1.0"
 [libraries]
 # Platform expectations
 paper = { group = "io.papermc.paper", name = "paper-api", version.ref = "paper" }
-checkerqual = { group = "org.checkerframework", name = "checker-qual", version.ref = "checker-qual" }
 
 # Platform expectations
 guice = { group = "com.google.inject", name = "guice", version.ref = "guice" }