diff options
Diffstat (limited to 'patches/server/0075-Use-a-Shared-Random-for-Entities.patch')
| -rw-r--r-- | patches/server/0075-Use-a-Shared-Random-for-Entities.patch | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/patches/server/0075-Use-a-Shared-Random-for-Entities.patch b/patches/server/0075-Use-a-Shared-Random-for-Entities.patch new file mode 100644 index 0000000000..0dc711a42b --- /dev/null +++ b/patches/server/0075-Use-a-Shared-Random-for-Entities.patch @@ -0,0 +1,113 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: Aikar <[email protected]> +Date: Tue, 22 Mar 2016 00:33:47 -0400 +Subject: [PATCH] Use a Shared Random for Entities + +Reduces memory usage and provides ensures more randomness, Especially since a lot of garbage entity objects get created. + +diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java +index 82e57978b79b5275b98a1fa7731c6a23ee861a2f..bd17157631a74f80e3b5ce50bb1f681abe1dd6a7 100644 +--- a/src/main/java/net/minecraft/world/entity/Entity.java ++++ b/src/main/java/net/minecraft/world/entity/Entity.java +@@ -175,6 +175,79 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess + return tag.contains("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level; + } + ++ // Paper start - Share random for entities to make them more random ++ public static RandomSource SHARED_RANDOM = new RandomRandomSource(); ++ private static final class RandomRandomSource extends java.util.Random implements net.minecraft.world.level.levelgen.BitRandomSource { ++ private boolean locked = false; ++ ++ @Override ++ public synchronized void setSeed(long seed) { ++ if (locked) { ++ LOGGER.error("Ignoring setSeed on Entity.SHARED_RANDOM", new Throwable()); ++ } else { ++ super.setSeed(seed); ++ locked = true; ++ } ++ } ++ ++ @Override ++ public RandomSource fork() { ++ return new net.minecraft.world.level.levelgen.LegacyRandomSource(this.nextLong()); ++ } ++ ++ @Override ++ public net.minecraft.world.level.levelgen.PositionalRandomFactory forkPositional() { ++ return new net.minecraft.world.level.levelgen.LegacyRandomSource.LegacyPositionalRandomFactory(this.nextLong()); ++ } ++ ++ // these below are added to fix reobf issues that I don't wanna deal with right now ++ @Override ++ public int next(int bits) { ++ return super.next(bits); ++ } ++ ++ @Override ++ public int nextInt(int origin, int bound) { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextInt(origin, bound); ++ } ++ ++ @Override ++ public long nextLong() { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextLong(); ++ } ++ ++ @Override ++ public int nextInt() { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextInt(); ++ } ++ ++ @Override ++ public int nextInt(int bound) { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextInt(bound); ++ } ++ ++ @Override ++ public boolean nextBoolean() { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextBoolean(); ++ } ++ ++ @Override ++ public float nextFloat() { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextFloat(); ++ } ++ ++ @Override ++ public double nextDouble() { ++ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextDouble(); ++ } ++ ++ @Override ++ public double nextGaussian() { ++ return super.nextGaussian(); ++ } ++ } ++ // Paper end - Share random for entities to make them more random ++ + private CraftEntity bukkitEntity; + + public CraftEntity getBukkitEntity() { +@@ -370,7 +443,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess + this.bb = Entity.INITIAL_AABB; + this.stuckSpeedMultiplier = Vec3.ZERO; + this.nextStep = 1.0F; +- this.random = RandomSource.create(); ++ this.random = SHARED_RANDOM; // Paper - Share random for entities to make them more random + this.remainingFireTicks = -this.getFireImmuneTicks(); + this.fluidHeight = new Object2DoubleArrayMap(2); + this.fluidOnEyes = new HashSet(); +diff --git a/src/main/java/net/minecraft/world/entity/animal/Squid.java b/src/main/java/net/minecraft/world/entity/animal/Squid.java +index 97d5bc9bab95c21afb3b95d2a7eb7df0b64698ed..42f4e544fe7fbc342f15eacb5e38d40849e3c419 100644 +--- a/src/main/java/net/minecraft/world/entity/animal/Squid.java ++++ b/src/main/java/net/minecraft/world/entity/animal/Squid.java +@@ -41,7 +41,7 @@ public class Squid extends WaterAnimal { + + public Squid(EntityType<? extends Squid> type, Level world) { + super(type, world); +- this.random.setSeed((long)this.getId()); ++ //this.random.setSeed((long)this.getId()); // Paper - Share random for entities to make them more random + this.tentacleSpeed = 1.0F / (this.random.nextFloat() + 1.0F) * 0.2F; + } + |