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SparklyPaperMC/patches/server/0024-Use-thread-unsafe-random-for-mob-spawning.patch
2021-08-07 13:26:00 -03:00

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3.1 KiB
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Paul Sauve <paul@technove.co>
Date: Tue, 22 Jun 2021 15:04:37 -0500
Subject: [PATCH] Use thread unsafe random for mob spawning
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index ad02d30bcad577dbe38b6c16657899636f891007..14ee66b677ad5de2058ae2083bed4a0fdcee20a9 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -835,7 +835,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
}
// Paper start - optimise random block ticking
private final BlockPos.MutableBlockPos chunkTickMutablePosition = new BlockPos.MutableBlockPos();
- private final com.tuinity.tuinity.util.math.ThreadUnsafeRandom randomTickRandom = new com.tuinity.tuinity.util.math.ThreadUnsafeRandom();
+ private final com.tuinity.tuinity.util.math.ThreadUnsafeRandom randomTickRandom = new com.tuinity.tuinity.util.math.ThreadUnsafeRandom(); public java.util.Random getThreadUnsafeRandom() { return this.randomTickRandom; } // Airplane - getter
// Paper end
private int currentIceAndSnowTick = 0; protected void resetIceAndSnowTick() { this.currentIceAndSnowTick = this.randomTickRandom.nextInt(16); } // Airplane
diff --git a/src/main/java/net/minecraft/world/level/NaturalSpawner.java b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
index c6821bfb28b582733cd977864c28ca5cf0c69872..ea77694307e5972b6c9ecf5f23515885974ed493 100644
--- a/src/main/java/net/minecraft/world/level/NaturalSpawner.java
+++ b/src/main/java/net/minecraft/world/level/NaturalSpawner.java
@@ -407,12 +407,12 @@ public final class NaturalSpawner {
return spawnGroup == MobCategory.MONSTER && world.getBlockState(pos.below()).is(Blocks.NETHER_BRICKS) && structureAccessor.getStructureAt(pos, false, StructureFeature.NETHER_BRIDGE).isValid() ? StructureFeature.NETHER_BRIDGE.getSpecialEnemies() : chunkGenerator.getMobsAt(biome != null ? biome : world.getBiome(pos), structureAccessor, spawnGroup, pos);
}
- private static BlockPos getRandomPosWithin(Level world, LevelChunk chunk) {
+ private static BlockPos getRandomPosWithin(ServerLevel world, LevelChunk chunk) { // Airplane - accept serverlevel
ChunkPos chunkcoordintpair = chunk.getPos();
- int i = chunkcoordintpair.getMinBlockX() + world.random.nextInt(16);
- int j = chunkcoordintpair.getMinBlockZ() + world.random.nextInt(16);
+ int i = chunkcoordintpair.getMinBlockX() + world.getThreadUnsafeRandom().nextInt(16); // Airplane - use thread unsafe random
+ int j = chunkcoordintpair.getMinBlockZ() + world.getThreadUnsafeRandom().nextInt(16); // Airplane
int k = chunk.getHeight(Heightmap.Types.WORLD_SURFACE, i, j) + 1;
- int l = Mth.randomBetweenInclusive(world.random, world.getMinBuildHeight(), k);
+ int l = Mth.randomBetweenInclusive(world.getThreadUnsafeRandom(), world.getMinBuildHeight(), k); // Airplane
return new BlockPos(i, l, j);
}