Paper/Spigot-Server-Patches/0117-Fix-Bugs-with-Spigot-Mob-Spawn-Logic.patch

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2017-01-06 22:45:59 +01:00
From 82a710b86ac776efc85ae57246a489a52f439582 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 14 Apr 2016 21:01:39 -0400
Subject: [PATCH] Fix Bugs with Spigot Mob Spawn Logic
Spigot drastically altered vanilla mob spawn logic and caused a few issues.
1) Used only spawnable chunks vs entire world for entity counting, resulting in ignoring
other entities in the world, and causing the world to go over its intended limit.
Specially with servers using smaller mob spawn ranges than view distance, as well as affects spawning API
2) Spigot was using 16x16 division instead of vanilla 17x17 division.
This patch returns mob counting to use all loaded chunks, and 17x17 division.
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
2016-11-17 03:23:38 +01:00
index 61d34fc..a6cf1d8 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -680,7 +680,7 @@ public class Chunk {
i = this.entitySlices.length - 1;
}
- this.entitySlices[i].remove(entity);
+ if (!this.entitySlices[i].remove(entity)) { return; } // Paper
// Paper start - update counts
if (entity instanceof EntityItem) {
itemCounts[i]--;
diff --git a/src/main/java/net/minecraft/server/SpawnerCreature.java b/src/main/java/net/minecraft/server/SpawnerCreature.java
2016-12-20 23:34:27 +01:00
index c95fb7f..0a7a310 100644
--- a/src/main/java/net/minecraft/server/SpawnerCreature.java
+++ b/src/main/java/net/minecraft/server/SpawnerCreature.java
2016-07-16 00:36:53 +02:00
@@ -23,6 +23,15 @@ public final class SpawnerCreature {
// Spigot start - get entity count only from chunks being processed in b
private int getEntityCount(WorldServer server, Class oClass)
{
+ // Paper start - use entire world, not just active chunks. Spigot broke vanilla expectations.
+ if (true) {
+ return server
+ .getChunkProviderServer()
+ .chunks.values()
+ .stream()
+ .collect(java.util.stream.Collectors.summingInt(c -> c.entityCount.get(oClass)));
+ }
+ // Paper end
int i = 0;
Iterator<Long> it = this.b.iterator();
while ( it.hasNext() )
2016-11-17 03:23:38 +01:00
@@ -126,7 +135,7 @@ public final class SpawnerCreature {
int l1 = limit * i / a; // CraftBukkit - use per-world limits
*/ // Paper end
- if ((mobcnt = getEntityCount(worldserver, enumcreaturetype.a())) <= limit * i / 256) {
+ if ((mobcnt = getEntityCount(worldserver, enumcreaturetype.a())) <= limit * i / 289) { // Paper - use 17x17 like vanilla (a at top of file)
BlockPosition.MutableBlockPosition blockposition_mutableblockposition = new BlockPosition.MutableBlockPosition();
Iterator iterator1 = this.b.iterator();
--
2016-12-11 00:50:31 +01:00
2.9.3