Avoid creating EntityDamageByEntityEvent

- Add configuration option to force plot components to be set only above bedrock level
 - Account for build height < gen height where it is not wanted for components to be set at/below bedrock

.github/workflows/build-pr.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@v4
       - name: Validate Gradle Wrapper
-        uses: gradle/wrapper-validation-action@v1
+        uses: gradle/wrapper-validation-action@v2
       - name: Setup Java
         uses: actions/setup-java@v4
         with:

.github/workflows/build.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@v4
       - name: Validate Gradle Wrapper
-        uses: gradle/wrapper-validation-action@v1
+        uses: gradle/wrapper-validation-action@v2
       - name: Setup Java
         uses: actions/setup-java@v4
         with:

.github/workflows/release-drafter.yml

@@ -12,6 +12,6 @@ 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
+      - uses: release-drafter/release-drafter@v6
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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

@@ -779,6 +779,13 @@ public final class BukkitPlatform extends JavaPlugin implements Listener, PlotPl
                 Iterator<Entity> iterator = entities.iterator();
                 while (iterator.hasNext()) {
                     Entity entity = iterator.next();
+                    if (PaperLib.isPaper() && "CUSTOM".equals(entity.getEntitySpawnReason().name())) {
+                        continue;
+                    }
+                    // Fallback for Spigot not having Entity#getEntitySpawnReason
+                    if (entity.getMetadata("ps_custom_spawned").stream().anyMatch(MetadataValue::asBoolean)) {
+                        continue;
+                    }
                     switch (entity.getType().toString()) {
                         case "EGG":
                         case "FISHING_HOOK":
@@ -867,8 +874,7 @@ public final class BukkitPlatform extends JavaPlugin implements Listener, PlotPl
                                     if (livingEntity.isLeashed() && !Settings.Enabled_Components.KILL_OWNED_ROAD_MOBS) {
                                         continue;
                                     }
-                                    List<MetadataValue> keep = entity.getMetadata("keep");
-                                    if (!keep.isEmpty()) {
+                                    if (entity.hasMetadata("keep")) {
                                         continue;
                                     }
 

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

@@ -19,6 +19,7 @@
 package com.plotsquared.bukkit.listener;
 
 import com.google.inject.Inject;
+import com.plotsquared.bukkit.BukkitPlatform;
 import com.plotsquared.bukkit.player.BukkitPlayer;
 import com.plotsquared.bukkit.util.BukkitEntityUtil;
 import com.plotsquared.bukkit.util.BukkitUtil;
@@ -41,6 +42,7 @@ import com.plotsquared.core.util.EventDispatcher;
 import com.plotsquared.core.util.PlotFlagUtil;
 import com.sk89q.worldedit.bukkit.BukkitAdapter;
 import com.sk89q.worldedit.world.block.BlockType;
+import io.papermc.lib.PaperLib;
 import org.bukkit.Material;
 import org.bukkit.Particle;
 import org.bukkit.World;
@@ -54,6 +56,7 @@ import org.bukkit.entity.Player;
 import org.bukkit.entity.Projectile;
 import org.bukkit.entity.TNTPrimed;
 import org.bukkit.entity.Vehicle;
+import org.bukkit.event.Cancellable;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
@@ -78,52 +81,43 @@ import java.util.List;
 @SuppressWarnings("unused")
 public class EntityEventListener implements Listener {
 
+    private final BukkitPlatform platform;
     private final PlotAreaManager plotAreaManager;
     private final EventDispatcher eventDispatcher;
     private float lastRadius;
 
     @Inject
     public EntityEventListener(
+            final @NonNull BukkitPlatform platform,
             final @NonNull PlotAreaManager plotAreaManager,
             final @NonNull EventDispatcher eventDispatcher
     ) {
+        this.platform = platform;
         this.plotAreaManager = plotAreaManager;
         this.eventDispatcher = eventDispatcher;
     }
 
     @EventHandler(priority = EventPriority.HIGHEST)
     public void onEntityCombustByEntity(EntityCombustByEntityEvent event) {
-        EntityDamageByEntityEvent eventChange =
-                new EntityDamageByEntityEvent(
-                        event.getCombuster(),
-                        event.getEntity(),
-                        EntityDamageEvent.DamageCause.FIRE_TICK,
-                        event.getDuration()
-                );
-        onEntityDamageByEntityEvent(eventChange);
-        if (eventChange.isCancelled()) {
-            event.setCancelled(true);
-        }
+        onEntityDamageByEntityCommon(event.getCombuster(), event.getEntity(), EntityDamageEvent.DamageCause.FIRE_TICK, event);
     }
 
     @EventHandler(priority = EventPriority.HIGHEST)
     public void onEntityDamageByEntityEvent(EntityDamageByEntityEvent event) {
-        Entity damager = event.getDamager();
+        onEntityDamageByEntityCommon(event.getDamager(), event.getEntity(), event.getCause(), event);
+    }
+
+    private void onEntityDamageByEntityCommon(
+            final Entity damager,
+            final Entity victim,
+            final EntityDamageEvent.DamageCause cause,
+            final Cancellable event
+    ) {
         Location location = BukkitUtil.adapt(damager.getLocation());
         if (!this.plotAreaManager.hasPlotArea(location.getWorldName())) {
             return;
         }
-        Entity victim = event.getEntity();
-/*
-        if (victim.getType().equals(EntityType.ITEM_FRAME)) {
-            Plot plot = BukkitUtil.getLocation(victim).getPlot();
-            if (plot != null && !plot.isAdded(damager.getUniqueId())) {
-                event.setCancelled(true);
-                return;
-            }
-        }
-*/
-        if (!BukkitEntityUtil.entityDamage(damager, victim, event.getCause())) {
+        if (!BukkitEntityUtil.entityDamage(damager, victim, cause)) {
             if (event.isCancelled()) {
                 if (victim instanceof Ageable ageable) {
                     if (ageable.getAge() == -24000) {
@@ -170,7 +164,18 @@ public class EntityEventListener implements Listener {
                     return;
                 }
             }
-            case "BUILD_IRONGOLEM", "BUILD_SNOWMAN", "BUILD_WITHER", "CUSTOM" -> {
+            case "CUSTOM" -> {
+                if (!area.isSpawnCustom()) {
+                    event.setCancelled(true);
+                    return;
+                }
+                // No need to clutter metadata if running paper
+                if (!PaperLib.isPaper()) {
+                    entity.setMetadata("ps_custom_spawned", new FixedMetadataValue(this.platform, true));
+                }
+                return; // Don't cancel if mob spawning is disabled
+            }
+            case "BUILD_IRONGOLEM", "BUILD_SNOWMAN", "BUILD_WITHER" -> {
                 if (!area.isSpawnCustom()) {
                     event.setCancelled(true);
                     return;

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

@@ -120,9 +120,14 @@ public class EntitySpawnListener implements Listener {
         Entity entity = event.getEntity();
         Location location = BukkitUtil.adapt(entity.getLocation());
         PlotArea area = location.getPlotArea();
-        if (!location.isPlotArea()) {
+        if (!location.isPlotArea() || area == null) {
             return;
         }
+        if (PaperLib.isPaper()) {
+            if (area.isSpawnCustom() && "CUSTOM".equals(entity.getEntitySpawnReason().name())) {
+                return;
+            }
+        }
         Plot plot = location.getOwnedPlotAbs();
         EntityType type = entity.getType();
         if (plot == null) {

Bukkit/src/main/java/com/plotsquared/bukkit/player/BukkitPlayer.java

@@ -40,6 +40,7 @@ import io.papermc.lib.PaperLib;
 import net.kyori.adventure.audience.Audience;
 import org.bukkit.GameMode;
 import org.bukkit.Sound;
+import org.bukkit.SoundCategory;
 import org.bukkit.WeatherType;
 import org.bukkit.entity.Player;
 import org.bukkit.event.Event;
@@ -51,7 +52,6 @@ import org.bukkit.potion.PotionEffectType;
 import org.checkerframework.checker.index.qual.NonNegative;
 import org.checkerframework.checker.nullness.qual.NonNull;
 
-import java.util.Arrays;
 import java.util.Set;
 import java.util.UUID;
 
@@ -309,18 +309,21 @@ public class BukkitPlayer extends PlotPlayer<Player> {
     @Override
     public void playMusic(final @NonNull Location location, final @NonNull ItemType id) {
         if (id == ItemTypes.AIR) {
-            // Let's just stop all the discs because why not?
-            for (final Sound sound : Arrays.stream(Sound.values())
-                    .filter(sound -> sound.name().contains("DISC")).toList()) {
-                player.stopSound(sound);
+            if (PlotSquared.platform().serverVersion()[1] >= 19) {
+                player.stopSound(SoundCategory.MUSIC);
+                return;
             }
-            // this.player.playEffect(BukkitUtil.getLocation(location), Effect.RECORD_PLAY, Material.AIR);
-        } else {
-            // this.player.playEffect(BukkitUtil.getLocation(location), Effect.RECORD_PLAY, id.to(Material.class));
-            this.player.playSound(BukkitUtil.adapt(location),
-                    Sound.valueOf(BukkitAdapter.adapt(id).name()), Float.MAX_VALUE, 1f
-            );
+            // 1.18 and downwards require a specific Sound to stop (even tho the packet does not??)
+            for (final Sound sound : Sound.values()) {
+                if (sound.name().startsWith("MUSIC_DISC")) {
+                    this.player.stopSound(sound, SoundCategory.MUSIC);
+                }
+            }
+            return;
         }
+        this.player.playSound(BukkitUtil.adapt(location), Sound.valueOf(BukkitAdapter.adapt(id).name()),
+                SoundCategory.MUSIC, 1f, 1f
+        );
     }
 
     @SuppressWarnings("deprecation") // Needed for Spigot compatibility

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

@@ -21,8 +21,9 @@ package com.plotsquared.core.command;
 import com.google.inject.Inject;
 import com.plotsquared.core.PlotSquared;
 import com.plotsquared.core.configuration.caption.TranslatableCaption;
-import com.plotsquared.core.events.PlotFlagRemoveEvent;
+import com.plotsquared.core.events.PlayerBuyPlotEvent;
 import com.plotsquared.core.events.Result;
+import com.plotsquared.core.player.OfflinePlotPlayer;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
@@ -88,22 +89,30 @@ public class Buy extends Command {
                 TranslatableCaption.of("permission.cant_claim_more_plots"),
                 TagResolver.resolver("amount", Tag.inserting(Component.text(player.getAllowedPlots())))
         );
-        double price = plot.getFlag(PriceFlag.class);
-        if (price <= 0) {
+        double priceFlag = plot.getFlag(PriceFlag.class);
+        if (priceFlag <= 0) {
             throw new CommandException(TranslatableCaption.of("economy.not_for_sale"));
         }
         checkTrue(
                 this.econHandler.isSupported(),
                 TranslatableCaption.of("economy.vault_or_consumer_null")
         );
-        checkTrue(
-                this.econHandler.getMoney(player) >= price,
-                TranslatableCaption.of("economy.cannot_afford_plot"),
-                TagResolver.builder()
-                        .tag("money", Tag.inserting(Component.text(this.econHandler.format(price))))
-                        .tag("balance", Tag.inserting(Component.text(this.econHandler.format(this.econHandler.getMoney(player)))))
-                        .build()
-        );
+
+        PlayerBuyPlotEvent event = this.eventDispatcher.callPlayerBuyPlot(player, plot, priceFlag);
+        if (event.getEventResult() == Result.DENY) {
+            throw new CommandException(TranslatableCaption.of("economy.cannot_buy_blocked"));
+        }
+
+        double price = event.getEventResult() == Result.FORCE ? 0 : event.price();
+        if (this.econHandler.getMoney(player) < price) {
+            throw new CommandException(
+                    TranslatableCaption.of("economy.cannot_afford_plot"),
+                    TagResolver.builder()
+                            .tag("money", Tag.inserting(Component.text(this.econHandler.format(price))))
+                            .tag("balance", Tag.inserting(Component.text(this.econHandler.format(this.econHandler.getMoney(player)))))
+                            .build()
+            );
+        }
         this.econHandler.withdrawMoney(player, price);
         // Failure
         // Success
@@ -113,7 +122,8 @@ public class Buy extends Command {
                     TagResolver.resolver("money", Tag.inserting(Component.text(this.econHandler.format(price))))
             );
 
-            this.econHandler.depositMoney(PlotSquared.platform().playerManager().getOfflinePlayer(plot.getOwnerAbs()), price);
+            OfflinePlotPlayer previousOwner = PlotSquared.platform().playerManager().getOfflinePlayer(plot.getOwnerAbs());
+            this.econHandler.depositMoney(previousOwner, price);
 
             PlotPlayer<?> owner = PlotSquared.platform().playerManager().getPlayerIfExists(plot.getOwnerAbs());
             if (owner != null) {
@@ -127,9 +137,8 @@ public class Buy extends Command {
                 );
             }
             PlotFlag<?, ?> plotFlag = plot.getFlagContainer().getFlag(PriceFlag.class);
-            PlotFlagRemoveEvent event = this.eventDispatcher.callFlagRemove(plotFlag, plot);
-            if (event.getEventResult() != Result.DENY) {
-                plot.removeFlag(event.getFlag());
+            if (this.eventDispatcher.callFlagRemove(plotFlag, plot).getEventResult() != Result.DENY) {
+                plot.removeFlag(plotFlag);
             }
             plot.setOwner(player.getUUID());
             plot.getPlotModificationManager().setSign(player.getName());
@@ -137,6 +146,7 @@ public class Buy extends Command {
                     TranslatableCaption.of("working.claimed"),
                     TagResolver.resolver("plot", Tag.inserting(Component.text(plot.getId().toString())))
             );
+            this.eventDispatcher.callPostPlayerBuyPlot(player, previousOwner, plot, price);
             whenDone.run(Buy.this, CommandResult.SUCCESS);
         }, () -> {
             this.econHandler.depositMoney(player, price);

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

@@ -135,6 +135,7 @@ public class Clear extends Command {
                                     .tag("plot", Tag.inserting(Component.text(plot.getId().toString())))
                                     .build()
                     );
+                    this.eventDispatcher.callPostPlotClear(player, plot);
                 }));
                 if (!result) {
                     player.sendMessage(TranslatableCaption.of("errors.wait_for_timer"));

Core/src/main/java/com/plotsquared/core/events/CancellablePlotEvent.java

@@ -18,17 +18,34 @@
  */
 package com.plotsquared.core.events;
 
+
+import org.checkerframework.checker.nullness.qual.Nullable;
+
 /**
  * PlotSquared event with {@link Result} to cancel, force, or allow.
  */
 public interface CancellablePlotEvent {
 
-    Result getEventResult();
+    /**
+     * The currently set {@link Result} for this event (as set by potential previous event listeners).
+     *
+     * @return the current result.
+     */
+    @Nullable Result getEventResult();
 
-    void setEventResult(Result eventResult);
+    /**
+     * Set the {@link Result} for this event.
+     *
+     * @param eventResult the new result.
+     */
+    void setEventResult(@Nullable Result eventResult);
 
+    /**
+     * @deprecated No usage and not null-safe
+     */
+    @Deprecated(since = "7.3.2")
     default int getEventResultRaw() {
-        return getEventResult().getValue();
+        return getEventResult() != null ? getEventResult().getValue() : -1;
     }
 
 }

Core/src/main/java/com/plotsquared/core/events/PlayerBuyPlotEvent.java

@@ -0,0 +1,88 @@
+/*
+ * 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.events;
+
+import com.plotsquared.core.player.PlotPlayer;
+import com.plotsquared.core.plot.Plot;
+import org.checkerframework.checker.index.qual.NonNegative;
+import org.checkerframework.checker.nullness.qual.Nullable;
+
+/**
+ * Called when a user attempts to buy a plot.
+ * <p>
+ * Setting the {@link #setEventResult(Result) Result} to {@link Result#FORCE} ignores the price and players account balance and does not charge the
+ * player anything. {@link Result#DENY} blocks the purchase completely, {@link Result#ACCEPT} and {@code null} do not modify
+ * the behaviour.
+ * <p>
+ * Setting the {@link #setPrice(double) price} to {@code 0} makes the plot practically free.
+ *
+ * @since 7.3.2
+ */
+public class PlayerBuyPlotEvent extends PlotPlayerEvent implements CancellablePlotEvent {
+
+    private Result result;
+    private double price;
+
+    public PlayerBuyPlotEvent(final PlotPlayer<?> plotPlayer, final Plot plot, @NonNegative final double price) {
+        super(plotPlayer, plot);
+        this.price = price;
+    }
+
+
+    /**
+     * Sets the price required to buy the plot.
+     *
+     * @param price the new price.
+     * @since 7.3.2
+     */
+    public void setPrice(@NonNegative final double price) {
+        //noinspection ConstantValue - the annotation does not ensure a non-negative runtime value
+        if (price < 0) {
+            throw new IllegalArgumentException("price must be non-negative");
+        }
+        this.price = price;
+    }
+
+    /**
+     * Returns the currently set price required to buy the plot.
+     *
+     * @return the price.
+     * @since 7.3.2
+     */
+    public @NonNegative double price() {
+        return price;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public void setEventResult(@Nullable final Result eventResult) {
+        this.result = eventResult;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    @Override
+    public @Nullable Result getEventResult() {
+        return this.result;
+    }
+
+}

Core/src/main/java/com/plotsquared/core/events/post/PostPlayerBuyPlotEvent.java

@@ -0,0 +1,64 @@
+/*
+ * 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.events.post;
+
+import com.plotsquared.core.events.PlotPlayerEvent;
+import com.plotsquared.core.player.OfflinePlotPlayer;
+import com.plotsquared.core.player.PlotPlayer;
+import com.plotsquared.core.plot.Plot;
+import org.checkerframework.checker.index.qual.NonNegative;
+
+/**
+ * Called after a player has successfully bought a plot.
+ *
+ * @since 7.3.2
+ */
+public class PostPlayerBuyPlotEvent extends PlotPlayerEvent {
+
+    private final OfflinePlotPlayer previousOwner;
+    private final double price;
+
+    public PostPlayerBuyPlotEvent(
+            final PlotPlayer<?> plotPlayer, final OfflinePlotPlayer previousOwner, final Plot plot,
+            @NonNegative final double price
+    ) {
+        super(plotPlayer, plot);
+        this.previousOwner = previousOwner;
+        this.price = price;
+    }
+
+    /**
+     * The previous owner of the bought plot.
+     *
+     * @return the previous owner.
+     */
+    public OfflinePlotPlayer previousOwner() {
+        return previousOwner;
+    }
+
+    /**
+     * Returns the price after potential modifications by {@link com.plotsquared.core.events.PlayerBuyPlotEvent}.
+     *
+     * @return the price the player had to pay to buy the plot.
+     */
+    public double price() {
+        return price;
+    }
+
+}

Core/src/main/java/com/plotsquared/core/events/post/PostPlotClearEvent.java

@@ -0,0 +1,43 @@
+/*
+ * 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.events.post;
+
+import com.plotsquared.core.events.PlotPlayerEvent;
+import com.plotsquared.core.player.PlotPlayer;
+import com.plotsquared.core.plot.Plot;
+
+/**
+ * Called after a {@link Plot} was cleared.
+ *
+ * @since 7.3.2
+ */
+public class PostPlotClearEvent extends PlotPlayerEvent {
+
+
+    /**
+     * Instantiate a new PostPlotClearEvent.
+     *
+     * @param plotPlayer The {@link PlotPlayer} that initiated the clear.
+     * @param plot       The clearing plot.
+     */
+    public PostPlotClearEvent(final PlotPlayer<?> plotPlayer, final Plot plot) {
+        super(plotPlayer, plot);
+    }
+
+}

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

@@ -143,7 +143,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                     classicPlotWorld,
                     plot.getRegions(),
                     blocks,
-                    classicPlotWorld.getMinBuildHeight(),
+                    classicPlotWorld.getMinComponentHeight(),
                     classicPlotWorld.getMaxBuildHeight() - 1,
                     actor,
                     queue
@@ -204,7 +204,7 @@ public class ClassicPlotManager extends SquarePlotManager {
                     classicPlotWorld,
                     plot.getRegions(),
                     blocks,
-                    classicPlotWorld.getMinBuildHeight(),
+                    classicPlotWorld.getMinComponentHeight(),
                     classicPlotWorld.PLOT_HEIGHT - 1,
                     actor,
                     queue
@@ -379,7 +379,7 @@ public class ClassicPlotManager extends SquarePlotManager {
             }
         }
 
-        int yStart = classicPlotWorld.getMinBuildHeight() + (classicPlotWorld.PLOT_BEDROCK ? 1 : 0);
+        int yStart = classicPlotWorld.getMinComponentHeight();
         if (!plot.isMerged(Direction.NORTH)) {
             int z = bot.getZ();
             for (int x = bot.getX(); x < top.getX(); x++) {

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

@@ -52,6 +52,7 @@ public abstract class ClassicPlotWorld extends SquarePlotWorld {
     public BlockBucket ROAD_BLOCK = new BlockBucket(BlockTypes.QUARTZ_BLOCK);
     public boolean PLOT_BEDROCK = true;
     public boolean PLACE_TOP_BLOCK = true;
+    public boolean COMPONENT_BELOW_BEDROCK = false;
 
     public ClassicPlotWorld(
             final @NonNull String worldName,
@@ -129,6 +130,9 @@ public abstract class ClassicPlotWorld extends SquarePlotWorld {
                 ),
                 new ConfigurationNode("plot.bedrock", this.PLOT_BEDROCK, TranslatableCaption.of("setup.bedrock_boolean"),
                         ConfigurationUtil.BOOLEAN
+                ),
+                new ConfigurationNode("world.component_below_bedrock", this.COMPONENT_BELOW_BEDROCK, TranslatableCaption.of(
+                        "setup.component_below_bedrock_boolean"), ConfigurationUtil.BOOLEAN
                 )};
     }
 
@@ -150,6 +154,14 @@ public abstract class ClassicPlotWorld extends SquarePlotWorld {
         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 = createCheckedBlockBucket(config.getString("wall.block_claimed"), CLAIMED_WALL_BLOCK);
+        this.COMPONENT_BELOW_BEDROCK = config.getBoolean("world.component_below_bedrock");
+    }
+
+    @Override
+    public int getMinComponentHeight() {
+        return COMPONENT_BELOW_BEDROCK && getMinGenHeight() >= getMinBuildHeight()
+                ? getMinGenHeight() + (PLOT_BEDROCK ? 1 : 0)
+                : getMinBuildHeight();
     }
 
     int schematicStartHeight() {

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

@@ -1452,6 +1452,24 @@ public abstract class PlotArea implements ComponentLike {
         this.defaultHome = defaultHome;
     }
 
+    /**
+     * Get the maximum height that changes to plot components (wall filling, air, all etc.) may operate to
+     *
+     * @since TODO
+     */
+    public int getMaxComponentHeight() {
+        return this.maxBuildHeight;
+    }
+
+    /**
+     * Get the minimum height that changes to plot components (wall filling, air, all etc.) may operate to
+     *
+     * @since TODO
+     */
+    public int getMinComponentHeight() {
+        return this.minBuildHeight;
+    }
+
     /**
      * Get the maximum height players may build in. Exclusive.
      */

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

@@ -25,6 +25,7 @@ import com.plotsquared.core.configuration.Settings;
 import com.plotsquared.core.configuration.caption.TranslatableCaption;
 import com.plotsquared.core.events.PlayerAutoPlotEvent;
 import com.plotsquared.core.events.PlayerAutoPlotsChosenEvent;
+import com.plotsquared.core.events.PlayerBuyPlotEvent;
 import com.plotsquared.core.events.PlayerClaimPlotEvent;
 import com.plotsquared.core.events.PlayerEnterPlotEvent;
 import com.plotsquared.core.events.PlayerLeavePlotEvent;
@@ -49,7 +50,9 @@ import com.plotsquared.core.events.PlotUnlinkEvent;
 import com.plotsquared.core.events.RemoveRoadEntityEvent;
 import com.plotsquared.core.events.TeleportCause;
 import com.plotsquared.core.events.post.PostPlayerAutoPlotEvent;
+import com.plotsquared.core.events.post.PostPlayerBuyPlotEvent;
 import com.plotsquared.core.events.post.PostPlotChangeOwnerEvent;
+import com.plotsquared.core.events.post.PostPlotClearEvent;
 import com.plotsquared.core.events.post.PostPlotDeleteEvent;
 import com.plotsquared.core.events.post.PostPlotMergeEvent;
 import com.plotsquared.core.events.post.PostPlotUnlinkEvent;
@@ -57,6 +60,7 @@ import com.plotsquared.core.listener.PlayerBlockEventType;
 import com.plotsquared.core.location.Direction;
 import com.plotsquared.core.location.Location;
 import com.plotsquared.core.permissions.Permission;
+import com.plotsquared.core.player.OfflinePlotPlayer;
 import com.plotsquared.core.player.PlotPlayer;
 import com.plotsquared.core.plot.Plot;
 import com.plotsquared.core.plot.PlotArea;
@@ -179,6 +183,12 @@ public class EventDispatcher {
         return event;
     }
 
+    public PostPlotClearEvent callPostPlotClear(PlotPlayer<?> player, Plot plot) {
+        PostPlotClearEvent event = new PostPlotClearEvent(player, plot);
+        callEvent(event);
+        return event;
+    }
+
     public PlotDeleteEvent callDelete(Plot plot) {
         PlotDeleteEvent event = new PlotDeleteEvent(plot);
         callEvent(event);
@@ -315,6 +325,17 @@ public class EventDispatcher {
         return event;
     }
 
+    public PlayerBuyPlotEvent callPlayerBuyPlot(PlotPlayer<?> player, Plot plot, double price) {
+        PlayerBuyPlotEvent event = new PlayerBuyPlotEvent(player, plot, price);
+        eventBus.post(event);
+        return event;
+    }
+
+    public void callPostPlayerBuyPlot(PlotPlayer<?> player, OfflinePlotPlayer previousOwner, Plot plot,
+                                      double price) {
+        eventBus.post(new PostPlayerBuyPlotEvent(player, previousOwner, plot, price));
+    }
+
     public void doJoinTask(final PlotPlayer<?> player) {
         if (player == null) {
             return; //possible future warning message to figure out where we are retrieving null

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

@@ -125,6 +125,7 @@
   "economy.added_balance": "<prefix><gold><money> </gold><gray>has been added to your balance.</gray>",
   "economy.removed_balance": "<prefix><gold><money> </gold><gray>has been taken from your balance.</gray>",
   "economy.removed_granted_plot": "<prefix><gray>You used <used_grants> plot grant(s), you've got </gray><gold><remaining_grants></gold> <gray>left.</gray>",
+  "economy.cannot_buy_blocked":  "<prefix><red>You are not allowed to buy this plot.</red>",
   "setup.choose_generator": "<gold>What generator do you want?</gold>",
   "setup.setup_not_started": "<prefix><gold>No setup started.</gold>",
   "setup.setup_init": "<prefix><gold>Usage: </gold><gray>/plot setup <value></gray>",
@@ -165,6 +166,7 @@
   "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.component_below_bedrock_boolean": "<gold>Whether a component change e.g. /plot set walls should edit the bedrock layer or below</gold>",
   "setup.singleplotarea_void_world": "<gold>Void world</gold>",
   "plotareatype.plot_area_type_normal": "<gray>Standard plot generation</gray>",
   "plotareatype.plot_area_type_augmented": "<gray>Plot generation with vanilla terrain</gray>",

build.gradle.kts

@@ -22,7 +22,7 @@ plugins {
 }
 
 group = "com.intellectualsites.plotsquared"
-version = "7.3.2-SNAPSHOT"
+version = "7.3.4-SNAPSHOT"
 
 if (!File("$rootDir/.git").exists()) {
     logger.lifecycle("""
@@ -79,8 +79,8 @@ subprojects {
 
     dependencies {
         // Tests
-        testImplementation("org.junit.jupiter:junit-jupiter:5.10.1")
-        testRuntimeOnly("org.junit.platform:junit-platform-launcher:1.10.1")
+        testImplementation("org.junit.jupiter:junit-jupiter:5.10.2")
+        testRuntimeOnly("org.junit.platform:junit-platform-launcher:1.10.2")
     }
 
     plugins.withId("java") {

gradle/libs.versions.toml

@@ -35,9 +35,9 @@ serverlib = "2.3.4"
 # Gradle plugins
 shadow = "8.1.1"
 grgit = "4.1.1"
-spotless = "6.23.3"
+spotless = "6.25.0"
 nexus = "1.3.0"
-runPaper = "2.2.2"
+runPaper = "2.2.3"
 
 [libraries]
 # Platform expectations

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

gradlew.bat

@@ -43,11 +43,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -57,11 +57,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail