Paper/Spigot-Server-Patches/0329-Send-nearby-packets-from-world-player-list-not-serve.patch

From aee707c111aa24b4a9036acb37b6e226efc81a44 Mon Sep 17 00:00:00 2001
From: Mystiflow <mystiflow@gmail.com>
Date: Fri, 6 Jul 2018 13:21:30 +0100
Subject: [PATCH] Send nearby packets from world player list not server list


diff --git a/src/main/java/net/minecraft/server/PlayerList.java b/src/main/java/net/minecraft/server/PlayerList.java
index eaaa54ac..44ced604 100644
--- a/src/main/java/net/minecraft/server/PlayerList.java
+++ b/src/main/java/net/minecraft/server/PlayerList.java
@@ -1239,8 +1239,25 @@ public abstract class PlayerList {
     }
 
     public void sendPacketNearby(@Nullable EntityHuman entityhuman, double d0, double d1, double d2, double d3, int i, Packet<?> packet) {
-        for (int j = 0; j < this.players.size(); ++j) {
-            EntityPlayer entityplayer = (EntityPlayer) this.players.get(j);
+        // Paper start - Use world list instead of server list where preferable
+        sendPacketNearby(entityhuman, d0, d1, d2, d3, i, null, packet); // Retained for compatibility
+    }
+
+    public void sendPacketNearby(@Nullable EntityHuman entityhuman, double d0, double d1, double d2, double d3, WorldServer world, Packet<?> packet) {
+        sendPacketNearby(entityhuman, d0, d1, d2, d3, world.dimension, world, packet);
+    }
+
+    public void sendPacketNearby(@Nullable EntityHuman entityhuman, double d0, double d1, double d2, double d3, int i, @Nullable WorldServer world, Packet<?> packet) {
+        if (world == null && entityhuman != null && entityhuman.world instanceof WorldServer) {
+            world = (WorldServer) entityhuman.world;
+        }
+
+        List<? extends EntityHuman> players1 = world == null ? players : world.players;
+        for (int j = 0; j < players1.size(); ++j) {
+            EntityHuman entity = players1.get(j);
+            if (!(entity instanceof EntityPlayer)) continue;
+            EntityPlayer entityplayer = (EntityPlayer) players1.get(j);
+            // Paper end
 
             // CraftBukkit start - Test if player receiving packet can see the source of the packet
             if (entityhuman != null && entityhuman instanceof EntityPlayer && !entityplayer.getBukkitEntity().canSee(((EntityPlayer) entityhuman).getBukkitEntity())) {
@@ -1248,7 +1265,7 @@ public abstract class PlayerList {
             }
             // CraftBukkit end
 
-            if (entityplayer != entityhuman && entityplayer.dimension == i) {
+            if (entityplayer != entityhuman && (world != null || entityplayer.dimension == i)) { // Paper
                 double d4 = d0 - entityplayer.locX;
                 double d5 = d1 - entityplayer.locY;
                 double d6 = d2 - entityplayer.locZ;
diff --git a/src/main/java/net/minecraft/server/WorldManager.java b/src/main/java/net/minecraft/server/WorldManager.java
index 2c8fb705..a986e947 100644
--- a/src/main/java/net/minecraft/server/WorldManager.java
+++ b/src/main/java/net/minecraft/server/WorldManager.java
@@ -35,8 +35,8 @@ public class WorldManager implements IWorldAccess {
     }
 
     public void a(@Nullable EntityHuman entityhuman, SoundEffect soundeffect, SoundCategory soundcategory, double d0, double d1, double d2, float f, float f1) {
-        // CraftBukkit - this.world.dimension
-        this.a.getPlayerList().sendPacketNearby(entityhuman, d0, d1, d2, f > 1.0F ? (double) (16.0F * f) : 16.0D, this.world.dimension, new PacketPlayOutNamedSoundEffect(soundeffect, soundcategory, d0, d1, d2, f, f1));
+        // CraftBukkit - this.world.dimension, // Paper - this.world.dimension -> this.world
+        this.a.getPlayerList().sendPacketNearby(entityhuman, d0, d1, d2, f > 1.0F ? (double) (16.0F * f) : 16.0D, this.world, new PacketPlayOutNamedSoundEffect(soundeffect, soundcategory, d0, d1, d2, f, f1));
     }
 
     public void a(int i, int j, int k, int l, int i1, int j1) {}
@@ -51,7 +51,7 @@ public class WorldManager implements IWorldAccess {
 
     public void a(EntityHuman entityhuman, int i, BlockPosition blockposition, int j) {
         // CraftBukkit - this.world.dimension
-        this.a.getPlayerList().sendPacketNearby(entityhuman, (double) blockposition.getX(), (double) blockposition.getY(), (double) blockposition.getZ(), 64.0D, this.world.dimension, new PacketPlayOutWorldEvent(i, blockposition, j, false));
+        this.a.getPlayerList().sendPacketNearby(entityhuman, (double) blockposition.getX(), (double) blockposition.getY(), (double) blockposition.getZ(), 64.0D, this.world, new PacketPlayOutWorldEvent(i, blockposition, j, false));
     }
 
     public void a(int i, BlockPosition blockposition, int j) {
@@ -59,7 +59,7 @@ public class WorldManager implements IWorldAccess {
     }
 
     public void b(int i, BlockPosition blockposition, int j) {
-        Iterator iterator = this.a.getPlayerList().v().iterator();
+        // Iterator iterator = this.a.getPlayerList().v().iterator(); // Paper
 
         // CraftBukkit start
         EntityHuman entityhuman = null;
@@ -67,7 +67,13 @@ public class WorldManager implements IWorldAccess {
         if (entity instanceof EntityHuman) entityhuman = (EntityHuman) entity;
         // CraftBukkit end
 
+        // Paper start
+        java.util.List<? extends EntityHuman> list = entity != null ? entity.world.players : this.a.getPlayerList().v();
+        Iterator<? extends EntityHuman> iterator = list.iterator();
         while (iterator.hasNext()) {
+            EntityHuman human = iterator.next();
+            if (!(human instanceof EntityPlayer)) continue;
+            // Paper end
             EntityPlayer entityplayer = (EntityPlayer) iterator.next();
 
             if (entityplayer != null && entityplayer.world == this.world && entityplayer.getId() != i) {
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 9fe5c440..8768b0b8 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -1234,7 +1234,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
         }
         // CraftBukkit end
         if (super.strikeLightning(entity)) {
-            this.server.getPlayerList().sendPacketNearby((EntityHuman) null, entity.locX, entity.locY, entity.locZ, 512.0D, dimension, new PacketPlayOutSpawnEntityWeather(entity)); // CraftBukkit - Use dimension
+            this.server.getPlayerList().sendPacketNearby((EntityHuman) null, entity.locX, entity.locY, entity.locZ, 512.0D, this, new PacketPlayOutSpawnEntityWeather(entity)); // CraftBukkit - Use dimension, // Paper - use world instead of dimension
             return true;
         } else {
             return false;
@@ -1309,8 +1309,8 @@ public class WorldServer extends World implements IAsyncTaskHandler {
                 BlockActionData blockactiondata = (BlockActionData) iterator.next();
 
                 if (this.a(blockactiondata)) {
-                    // CraftBukkit - this.worldProvider.dimension -> this.dimension
-                    this.server.getPlayerList().sendPacketNearby((EntityHuman) null, (double) blockactiondata.a().getX(), (double) blockactiondata.a().getY(), (double) blockactiondata.a().getZ(), 64.0D, dimension, new PacketPlayOutBlockAction(blockactiondata.a(), blockactiondata.d(), blockactiondata.b(), blockactiondata.c()));
+                    // CraftBukkit - this.worldProvider.dimension -> this.dimension, // Paper - dimension -> world
+                    this.server.getPlayerList().sendPacketNearby((EntityHuman) null, (double) blockactiondata.a().getX(), (double) blockactiondata.a().getY(), (double) blockactiondata.a().getZ(), 64.0D, this, new PacketPlayOutBlockAction(blockactiondata.a(), blockactiondata.d(), blockactiondata.b(), blockactiondata.c()));
                 }
             }
 
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 210e3bc4..170c937a 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -1496,7 +1496,7 @@ public class CraftWorld implements World {
         double z = loc.getZ();
 
         PacketPlayOutCustomSoundEffect packet = new PacketPlayOutCustomSoundEffect(sound, SoundCategory.valueOf(category.name()), x, y, z, volume, pitch);
-        world.getMinecraftServer().getPlayerList().sendPacketNearby(null, x, y, z, volume > 1.0F ? 16.0F * volume : 16.0D, this.world.dimension, packet);
+        world.getMinecraftServer().getPlayerList().sendPacketNearby(null, x, y, z, volume > 1.0F ? 16.0F * volume : 16.0D, this.world, packet); // Paper - this.world.dimension -> this.world
     }
 
     public String getGameRuleValue(String rule) {
-- 
2.18.0.rc2.windows.1