Entity chunk section change event

paper-api/src/main/java/io/papermc/paper/event/entity/EntityChangeChunkSectionEvent.java

@@ -0,0 +1,64 @@
+package io.papermc.paper.event.entity;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.entity.EntityEvent;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Called when a registered entity moves to another chunk section.
+ */
+@NullMarked
+public final class EntityChangeChunkSectionEvent extends EntityEvent {
+
+    private static final HandlerList HANDLER_LIST = new HandlerList();
+
+    private final int previousX;
+    private final int previousY;
+    private final int previousZ;
+
+    @ApiStatus.Internal
+    public EntityChangeChunkSectionEvent(Entity entity, int previousX, int previousY, int previousZ) {
+        super(entity);
+        this.previousX = previousX;
+        this.previousY = previousY;
+        this.previousZ = previousZ;
+    }
+
+    /**
+     * Gets the {@code X} coordinate of the previous chunk section.
+     *
+     * @return the {@code X} coordinate
+     */
+    public int getPreviousX() {
+        return this.previousX;
+    }
+
+    /**
+     * Gets the {@code Y} coordinate of the previous chunk section.
+     *
+     * @return the {@code Y} coordinate
+     */
+    public int getPreviousY() {
+        return this.previousY;
+    }
+
+    /**
+     * Gets the {@code Z} coordinate of the previous chunk section.
+     *
+     * @return the {@code Z} coordinate
+     */
+    public int getPreviousZ() {
+        return this.previousZ;
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+}

paper-server/patches/features/0002-Rewrite-dataconverter-system.patch

@@ -34050,10 +34050,10 @@ index 0000000000000000000000000000000000000000..863a9785c84af6e0c961ae32f0102b5d
 +    }
 +}
 diff --git a/ca/spottedleaf/moonrise/paper/PaperHooks.java b/ca/spottedleaf/moonrise/paper/PaperHooks.java
-index 7050fd6efb6fec16ba5657e254c54de1c671c9a0..aa14dd369d5d2c5c843839f289afdc39c200f0c3 100644
+index dd7210ad012bc555941c876dbbfc0a7963b2f1e6..733738c9d8ac9df0ec8260a37b33ad576c9dadea 100644
 --- a/ca/spottedleaf/moonrise/paper/PaperHooks.java
 +++ b/ca/spottedleaf/moonrise/paper/PaperHooks.java
-@@ -216,6 +216,11 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
+@@ -223,6 +223,11 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
      @Override
      public CompoundTag convertNBT(final DSL.TypeReference type, final DataFixer dataFixer, final CompoundTag nbt,
                                    final int fromVersion, final int toVersion) {
@@ -34065,7 +34065,7 @@ index 7050fd6efb6fec16ba5657e254c54de1c671c9a0..aa14dd369d5d2c5c843839f289afdc39
          return (CompoundTag)dataFixer.update(
              type, new Dynamic<>(NbtOps.INSTANCE, nbt), fromVersion, toVersion
          ).getValue();
-@@ -257,4 +262,4 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
+@@ -264,4 +269,4 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
      public boolean addTicketForEnderPearls(final ServerLevel world) {
          return !world.paperConfig().misc.legacyEnderPearlBehavior;
      }

paper-server/patches/features/0003-Moonrise-optimisation-patches.patch

@@ -300,7 +300,7 @@ index 0000000000000000000000000000000000000000..fff7a796a61542213bdaa417d44e25cd
 +    }
 +}
 diff --git a/ca/spottedleaf/moonrise/paper/PaperHooks.java b/ca/spottedleaf/moonrise/paper/PaperHooks.java
-index aa14dd369d5d2c5c843839f289afdc39c200f0c3..76f990f150f040b1ad6d7d5b91cfb34ebd6f436a 100644
+index 733738c9d8ac9df0ec8260a37b33ad576c9dadea..dc0cb8025405f17139acf62b35a66a8ac1176069 100644
 --- a/ca/spottedleaf/moonrise/paper/PaperHooks.java
 +++ b/ca/spottedleaf/moonrise/paper/PaperHooks.java
 @@ -13,6 +13,7 @@ import net.minecraft.server.level.ChunkHolder;
@@ -311,7 +311,7 @@ index aa14dd369d5d2c5c843839f289afdc39c200f0c3..76f990f150f040b1ad6d7d5b91cfb34e
  import net.minecraft.world.entity.Entity;
  import net.minecraft.world.entity.boss.enderdragon.EnderDragonPart;
  import net.minecraft.world.level.BlockGetter;
-@@ -150,7 +151,15 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
+@@ -157,7 +158,15 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
 
      @Override
      public long[] getCounterTypesUncached(final net.minecraft.server.level.TicketType type) {
@@ -328,7 +328,7 @@ index aa14dd369d5d2c5c843839f289afdc39c200f0c3..76f990f150f040b1ad6d7d5b91cfb34e
      }
 
      @Override
-@@ -249,7 +258,7 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
+@@ -256,7 +265,7 @@ public final class PaperHooks extends BaseChunkSystemHooks implements PlatformHo
      @Override
      public void postLoadProtoChunk(final ServerLevel world, final ProtoChunk chunk) {
          try (final net.minecraft.util.ProblemReporter.ScopedCollector scopedCollector = new net.minecraft.util.ProblemReporter.ScopedCollector(chunk.problemPath(), LOGGER)) {

paper-server/patches/sources/ca/spottedleaf/moonrise/paper/PaperHooks.java.patch

@@ -1,6 +1,6 @@
 --- /dev/null
 +++ b/ca/spottedleaf/moonrise/paper/PaperHooks.java
-@@ -1,0 +_,260 @@
+@@ -1,0 +_,267 @@
 +package ca.spottedleaf.moonrise.paper;
 +
 +import ca.spottedleaf.moonrise.common.PlatformHooks;
@@ -143,7 +143,14 @@
 +
 +    @Override
 +    public void entityMove(final Entity entity, final long oldSection, final long newSection) {
-+
++        // Paper start - Add EntityChangeChunkSectionEvent
++        new io.papermc.paper.event.entity.EntityChangeChunkSectionEvent(
++            entity.getBukkitEntity(),
++            ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionX(oldSection),
++            ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionY(oldSection),
++            ca.spottedleaf.moonrise.common.util.CoordinateUtils.getChunkSectionZ(oldSection)
++        ).callEvent();
++        // Paper end - Add EntityChangeChunkSectionEvent
 +    }
 +
 +    @Override