papermc/Spigot-Server-Patches/0007-Store-reference-to-current-Chunk-for-Entity-and-Bloc.patch
Aikar fc1e70df07
Merge branch 'master' into pre/1.13
* master:
  Always process chunk registration after moving
  Always move Entity to its new Chunk even if unloaded
  If Entity is added to chunk, look up the chunk if current isnt set
  Ignore Dead Entities in entityList iteration
  Always process chunk removal in removeEntity
2018-07-29 13:12:39 -04:00

188 lines
7.7 KiB
Diff

From 8f17d1b7fe35c66af5f943ff9b11461cae458af6 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 4 Jul 2018 02:10:36 -0400
Subject: [PATCH] Store reference to current Chunk for Entity and Block
Entities
This enables us a fast reference to the entities current chunk instead
of having to look it up by hashmap lookups.
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index cd4fbee0c..7837f1024 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -33,7 +33,7 @@ public class Chunk implements IChunkAccess {
private final BiomeBase[] g;
private final boolean[] h;
private final Map<BlockPosition, NBTTagCompound> i;
- private boolean j;
+ private boolean j; public boolean isLoaded() { return j; } // Paper - OBFHELPER
public final World world;
public final Map<HeightMap.Type, HeightMap> heightMap;
public final int locX;
@@ -63,7 +63,30 @@ public class Chunk implements IChunkAccess {
// CraftBukkit start - Neighbor loaded cache for chunk lighting and entity ticking
private int neighbors = 0x1 << 12;
public long chunkKey;
+ // Paper start
+ private class TileEntityHashMap extends java.util.HashMap<BlockPosition, TileEntity> {
+ @Override
+ public TileEntity put(BlockPosition key, TileEntity value) {
+ TileEntity replaced = super.put(key, value);
+ if (replaced != null) {
+ replaced.setCurrentChunk(null);
+ }
+ if (value != null) {
+ value.setCurrentChunk(Chunk.this);
+ }
+ return replaced;
+ }
+ @Override
+ public TileEntity remove(Object key) {
+ TileEntity removed = super.remove(key);
+ if (removed != null) {
+ removed.setCurrentChunk(null);
+ }
+ return removed;
+ }
+ }
+ // Paper end
public boolean areNeighborsLoaded(final int radius) {
switch (radius) {
case 2:
@@ -94,7 +117,7 @@ public class Chunk implements IChunkAccess {
this.h = new boolean[256];
this.i = Maps.newHashMap();
this.heightMap = Maps.newHashMap();
- this.tileEntities = Maps.newHashMap();
+ this.tileEntities = new TileEntityHashMap(); // Paper
this.q = Maps.newHashMap();
this.r = Maps.newHashMap();
this.s = new ShortList[16];
@@ -646,6 +669,9 @@ public class Chunk implements IChunkAccess {
entity.af = k;
entity.ag = this.locZ;
this.entitySlices[k].add(entity);
+ // Paper start
+ entity.setCurrentChunk(this);
+ // Paper end
}
public void a(HeightMap.Type heightmap_type, long[] along) {
@@ -664,8 +690,12 @@ public class Chunk implements IChunkAccess {
if (i >= this.entitySlices.length) {
i = this.entitySlices.length - 1;
}
-
- this.entitySlices[i].remove(entity);
+ // Paper start
+ if (!this.entitySlices[i].remove(entity)) {
+ return;
+ }
+ entity.setCurrentChunk(null);
+ // Paper end
}
public boolean c(BlockPosition blockposition) {
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index aa6230215..701d4a55a 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -133,7 +133,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
private static final DataWatcherObject<Boolean> aF = DataWatcher.a(Entity.class, DataWatcherRegistry.i);
private static final DataWatcherObject<Boolean> aG = DataWatcher.a(Entity.class, DataWatcherRegistry.i);
private static final DataWatcherObject<Boolean> aH = DataWatcher.a(Entity.class, DataWatcherRegistry.i);
- public boolean inChunk;
+ public boolean inChunk; public boolean isAddedToChunk() { return inChunk; } // Paper - OBFHELPER
public int ae; public int getChunkX() { return ae; } // Paper - OBFHELPER
public int af; public int getChunkY() { return af; } // Paper - OBFHELPER
public int ag; public int getChunkZ() { return ag; } // Paper - OBFHELPER
@@ -1782,6 +1782,39 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
// Paper start
+ private java.lang.ref.WeakReference<Chunk> currentChunk = null;
+
+ public void setCurrentChunk(Chunk chunk) {
+ this.currentChunk = chunk != null ? new java.lang.ref.WeakReference<>(chunk) : null;
+ }
+ /**
+ * Returns the entities current registered chunk. If the entity is not added to a chunk yet, it will return null
+ */
+ public Chunk getCurrentChunk() {
+ final Chunk chunk = currentChunk != null ? currentChunk.get() : null;
+ return chunk != null && chunk.isLoaded() ? chunk : (isAddedToChunk() ? world.getChunkIfLoaded(getChunkX(), getChunkZ()) : null);
+ }
+ /**
+ * Returns the chunk at the location, using the entities local cache if avail
+ * Will only return null if the location specified is not loaded
+ */
+ public Chunk getCurrentChunkAt(int x, int z) {
+ if (getChunkX() == x && getChunkZ() == z) {
+ Chunk chunk = getCurrentChunk();
+ if (chunk != null) {
+ return chunk;
+ }
+ }
+ return world.getChunkIfLoaded(x, z);
+ }
+ /**
+ * Returns the chunk at the entities current location, using the entities local cache if avail
+ * Will only return null if the location specified is not loaded
+ */
+ public Chunk getChunkAtLocation() {
+ return getCurrentChunkAt((int)Math.floor(locX) >> 4, (int)Math.floor(locZ) >> 4);
+ }
+
private MinecraftKey entityKey;
private String entityKeyString;
diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java
index 5ca7fef51..9361667c3 100644
--- a/src/main/java/net/minecraft/server/TileEntity.java
+++ b/src/main/java/net/minecraft/server/TileEntity.java
@@ -41,6 +41,15 @@ public abstract class TileEntity implements KeyedObject { // Paper
getMinecraftKey(); // Try to load if it doesn't exists.
return tileEntityKeyString;
}
+
+ private java.lang.ref.WeakReference<Chunk> currentChunk = null;
+ public Chunk getCurrentChunk() {
+ final Chunk chunk = currentChunk != null ? currentChunk.get() : null;
+ return chunk != null && chunk.isLoaded() ? chunk : null;
+ }
+ public void setCurrentChunk(Chunk chunk) {
+ this.currentChunk = chunk != null ? new java.lang.ref.WeakReference<>(chunk) : null;
+ }
// Paper end
@Nullable
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
index 72164e11a..f09251eec 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftEntity.java
@@ -9,6 +9,7 @@ import java.util.UUID;
import net.minecraft.server.*;
+import org.bukkit.Chunk;
import org.bukkit.EntityEffect;
import org.bukkit.Location;
import org.bukkit.Server;
@@ -40,6 +41,12 @@ public abstract class CraftEntity implements org.bukkit.entity.Entity {
this.entity = entity;
}
+ @Override
+ public Chunk getChunk() {
+ net.minecraft.server.Chunk currentChunk = entity.getCurrentChunk();
+ return currentChunk != null ? currentChunk.bukkitChunk : getLocation().getChunk();
+ }
+
public static CraftEntity getEntity(CraftServer server, Entity entity) {
/**
* Order is *EXTREMELY* important -- keep it right! =D
--
2.18.0