Paper/Spigot-Server-Patches/0006-Store-reference-to-current-Chunk-for-Entity-and-Bloc.patch
Aikar 5b6dfb3463
NOT FINISHED!!! Current Progress on 1.13-pre7 update
This work is 100% unfinished. I am pushing it up so that we as a team
can work on this update.

Do not try to use this branch. You will fail.
2018-07-16 00:13:29 -04:00

181 lines
6.9 KiB
Diff

From 9f15dcf160d9412793b5069dfa9d92e692ac1abc 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 9500c456d..120e66c78 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 53fc37088..1ef52cc6d 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -1786,6 +1786,40 @@ 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 : 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);
+ }
+
public final MinecraftKey entityKey;
public final String entityKeyString;
diff --git a/src/main/java/net/minecraft/server/TileEntity.java b/src/main/java/net/minecraft/server/TileEntity.java
index b09325097..b992360ac 100644
--- a/src/main/java/net/minecraft/server/TileEntity.java
+++ b/src/main/java/net/minecraft/server/TileEntity.java
@@ -38,6 +38,15 @@ public abstract class TileEntity implements KeyedObject {
public String getMinecraftKeyString() {
return tileEntityKeyString;
}
+
+ private java.lang.ref.WeakReference<Chunk> currentChunk = null;
+ public Chunk getCurrentChunk() {
+ final Chunk chunk = currentChunk != null ? currentChunk.get() : world.getChunkIfLoaded(position.getX() >> 4, position.getZ() >> 4);
+ 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 70143c4d3..1e3675e4f 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