Paper/patches/server/0261-Prevent-mob-spawning-from-loading-generating-chunks.patch
2023-03-14 20:24:52 +01:00

33 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 5338e0e1a67925da0c386735a545bb31096afbb1..029835914c3c88811684e90b29bfed83191b3b3f 100644
--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
@@ -170,9 +170,9 @@ public final class NaturalSpawner {
StructureManager structuremanager = world.structureManager();
ChunkGenerator chunkgenerator = world.getChunkSource().getGenerator();
int i = pos.getY();
- BlockState iblockdata = chunk.getBlockState(pos);
+ BlockState iblockdata = world.getBlockStateIfLoadedAndInBounds(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;
@@ -201,7 +201,7 @@ public final class NaturalSpawner {
if (entityhuman != null) {
double d2 = entityhuman.distanceToSqr(d0, (double) i, d1);
- if (NaturalSpawner.isRightDistanceToPlayerAndSpawnPoint(world, chunk, blockposition_mutableblockposition, d2)) {
+ if (world.isLoadedAndInBounds(blockposition_mutableblockposition) && NaturalSpawner.isRightDistanceToPlayerAndSpawnPoint(world, chunk, blockposition_mutableblockposition, d2)) { // Paper - don't load chunks for mob spawn
if (biomesettingsmobs_c == null) {
Optional<MobSpawnSettings.SpawnerData> optional = NaturalSpawner.getRandomSpawnMobAt(world, structuremanager, chunkgenerator, group, world.random, blockposition_mutableblockposition);