Paper/Spigot-Server-Patches/0401-Use-getChunkIfLoadedImmediately-in-places.patch

From 3c29bd01d31049fe243a948921c2c00a1dbeb13d Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 8 Jul 2019 00:13:36 -0700
Subject: [PATCH] Use getChunkIfLoadedImmediately in places

This prevents us from hitting chunk loads for chunks at or less-than
ticket level 33 (yes getChunkIfLoaded will actually perform a chunk
load in that case).

diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 55c73ffcaa..e8def7f812 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -199,7 +199,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
     }
 
     public boolean isChunkLoaded() {
-        return world.isChunkLoaded((int) Math.floor(this.locX) >> 4, (int) Math.floor(this.locZ) >> 4);
+        return world.getChunkIfLoadedImmediately((int) Math.floor(this.locX) >> 4, (int) Math.floor(this.locZ) >> 4) != null; // Paper
     }
     // CraftBukkit end
 
diff --git a/src/main/java/net/minecraft/server/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
index 4187ba05bd..e7b8b2e992 100644
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
@@ -981,7 +981,7 @@ public class PlayerConnection implements PacketListenerPlayIn {
                                 speed = player.abilities.walkSpeed * 10f;
                             }
                             // Paper start - Prevent moving into unloaded chunks
-                            if (player.world.paperConfig.preventMovingIntoUnloadedChunks && (this.player.locX != toX || this.player.locZ != toZ) && !worldserver.isChunkLoaded((int) Math.floor(toX) >> 4, (int) Math.floor(toZ) >> 4)) {
+                            if (player.world.paperConfig.preventMovingIntoUnloadedChunks && (this.player.locX != toX || this.player.locZ != toZ) && worldserver.getChunkIfLoadedImmediately((int) Math.floor(toX) >> 4, (int) Math.floor(toZ) >> 4) == null) { // Paper - use getIfLoadedImmediately
                                 this.internalTeleport(this.player.locX, this.player.locY, this.player.locZ, this.player.yaw, this.player.pitch, Collections.emptySet());
                                 return;
                             }
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index ab98c7b796..b81b37445c 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -131,7 +131,7 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
     }
 
     public Chunk getChunkIfLoaded(int x, int z) {
-        return ((ChunkProviderServer) this.chunkProvider).getChunkAt(x, z, false);
+        return ((ChunkProviderServer) this.chunkProvider).getChunkAtIfLoadedImmediately(x, z); // Paper
     }
 
     protected World(WorldData worlddata, DimensionManager dimensionmanager, BiFunction<World, WorldProvider, IChunkProvider> bifunction, GameProfilerFiller gameprofilerfiller, boolean flag, org.bukkit.generator.ChunkGenerator gen, org.bukkit.World.Environment env) {
@@ -274,12 +274,12 @@ public abstract class World implements IIBlockAccess, GeneratorAccess, AutoClose
     }
 
     public boolean isLoaded(BlockPosition blockposition) {
-        return getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null; // Paper
+        return getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null; // Paper
     }
 
     // Paper start
     public boolean isLoadedAndInBounds(BlockPosition blockposition) {
-        return getWorldBorder().isInBounds(blockposition) && getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
+        return getWorldBorder().isInBounds(blockposition) && getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
     }
     public Chunk getChunkIfLoaded(BlockPosition blockposition) {
         return getChunkIfLoaded(blockposition.getX() >> 4, blockposition.getZ() >> 4);
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index f86404f83a..92601c581c 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -143,9 +143,10 @@ public class ActivationRange
             {
                 for ( int j1 = k; j1 <= l; ++j1 )
                 {
-                    if ( world.getWorld().isChunkLoaded( i1, j1 ) )
+                    Chunk chunk = (Chunk) world.getChunkIfLoadedImmediately( i1, j1 );
+                    if ( chunk != null )
                     {
-                        activateChunkEntities( world.getChunkAt( i1, j1 ) );
+                        activateChunkEntities( chunk );
                     }
                 }
             }
-- 
2.22.1