PaperMC/patches/server-remapped/0285-Prevent-mob-spawning-from-loading-generating-chunks.patch
2021-06-11 14:02:28 +02:00

32 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 12 Sep 2018 21:12:57 -0400
Subject: [PATCH] Prevent mob spawning from loading/generating chunks
also prevents if out of world border bounds
diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
index b90a275a0dc2913809ce16659eed445501e486de..e23875ae07c23fed1161ea070e63bbc3a30168a0 100644
--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
@@ -174,9 +174,9 @@ public final class NaturalSpawner {
StructureFeatureManager structuremanager = world.structureFeatureManager();
ChunkGenerator chunkgenerator = world.getChunkSource().getGenerator();
int i = pos.getY();
- BlockState iblockdata = chunk.getBlockState(pos);
+ BlockState iblockdata = world.getTypeIfLoadedAndInBounds(pos); // Paper - don't load chunks for mob spawn
- if (!iblockdata.isRedstoneConductor(chunk, pos)) {
+ if (iblockdata != null && !iblockdata.isRedstoneConductor(chunk, pos)) { // Paper - don't load chunks for mob spawn
BlockPos.MutableBlockPos blockposition_mutableblockposition = new BlockPos.MutableBlockPos();
int j = 0;
int k = 0;
@@ -205,7 +205,7 @@ public final class NaturalSpawner {
if (entityhuman != null) {
double d2 = entityhuman.distanceToSqr(d0, (double) i, d1);
- if (isRightDistanceToPlayerAndSpawnPoint(world, chunk, blockposition_mutableblockposition, d2)) {
+ if (isRightDistanceToPlayerAndSpawnPoint(world, chunk, blockposition_mutableblockposition, d2) && world.isLoadedAndInBounds(blockposition_mutableblockposition)) { // Paper - don't load chunks for mob spawn
if (biomesettingsmobs_c == null) {
biomesettingsmobs_c = getRandomSpawnMobAt(world, structuremanager, chunkgenerator, group, world.random, (BlockPos) blockposition_mutableblockposition);
if (biomesettingsmobs_c == null) {