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c6aa61ee18
Updated Upstream (Bukkit/CraftBukkit/Spigot) Upstream has released updates that appear to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: b9df8e9f SPIGOT-7933: Improve custom Minecart max speed fc496179 Fix InstrumentTest 7c0ec598 PR-1075: Make Art an interface c389f5a4 PR-1074: Make Sound an interface CraftBukkit Changes: df1efc0bb SPIGOT-7945: `Bukkit#dispatchCommand` throws `UnsupportedOperationException` 285df6e85 SPIGOT-7933: Improve custom Minecart max speed a0f3d4e50 SPIGOT-7940: Recipe book errors after reload 9e0618ec2 SPIGOT-7937: Cannot spawn minecart during world generation with minecart_improvements enabled 1eb4d28da SPIGOT-7941: Fix resistance over 4 amplify causing issues in damage 52b99158a PR-1504: Make Art an interface e18ae35f1 PR-1502: Make Sound an interface Spigot Changes: e65d67a7 SPIGOT-7934: Item entities start "bouncing" under certain conditions
114 lines
4.7 KiB
Diff
114 lines
4.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Tue, 22 Mar 2016 00:33:47 -0400
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Subject: [PATCH] Use a Shared Random for Entities
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Reduces memory usage and provides ensures more randomness, Especially since a lot of garbage entity objects get created.
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diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
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index 0c2389e73e98ec48ed636f616a36e6e1cefa7b93..27a0f0651ac961c06626df1e4beb5525b4dacd48 100644
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--- a/src/main/java/net/minecraft/world/entity/Entity.java
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+++ b/src/main/java/net/minecraft/world/entity/Entity.java
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@@ -184,6 +184,79 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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return tag.contains("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
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}
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+ // Paper start - Share random for entities to make them more random
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+ public static RandomSource SHARED_RANDOM = new RandomRandomSource();
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+ private static final class RandomRandomSource extends java.util.Random implements net.minecraft.world.level.levelgen.BitRandomSource {
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+ private boolean locked = false;
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+
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+ @Override
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+ public synchronized void setSeed(long seed) {
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+ if (locked) {
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+ LOGGER.error("Ignoring setSeed on Entity.SHARED_RANDOM", new Throwable());
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+ } else {
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+ super.setSeed(seed);
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+ locked = true;
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+ }
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+ }
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+
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+ @Override
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+ public RandomSource fork() {
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+ return new net.minecraft.world.level.levelgen.LegacyRandomSource(this.nextLong());
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+ }
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+
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+ @Override
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+ public net.minecraft.world.level.levelgen.PositionalRandomFactory forkPositional() {
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+ return new net.minecraft.world.level.levelgen.LegacyRandomSource.LegacyPositionalRandomFactory(this.nextLong());
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+ }
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+
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+ // these below are added to fix reobf issues that I don't wanna deal with right now
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+ @Override
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+ public int next(int bits) {
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+ return super.next(bits);
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+ }
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+
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+ @Override
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+ public int nextInt(int origin, int bound) {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextInt(origin, bound);
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+ }
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+
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+ @Override
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+ public long nextLong() {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextLong();
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+ }
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+
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+ @Override
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+ public int nextInt() {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextInt();
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+ }
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+
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+ @Override
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+ public int nextInt(int bound) {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextInt(bound);
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+ }
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+
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+ @Override
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+ public boolean nextBoolean() {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextBoolean();
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+ }
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+
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+ @Override
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+ public float nextFloat() {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextFloat();
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+ }
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+
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+ @Override
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+ public double nextDouble() {
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+ return net.minecraft.world.level.levelgen.BitRandomSource.super.nextDouble();
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+ }
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+
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+ @Override
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+ public double nextGaussian() {
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+ return super.nextGaussian();
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+ }
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+ }
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+ // Paper end - Share random for entities to make them more random
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+
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private CraftEntity bukkitEntity;
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public CraftEntity getBukkitEntity() {
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@@ -374,7 +447,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
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this.bb = Entity.INITIAL_AABB;
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this.stuckSpeedMultiplier = Vec3.ZERO;
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this.nextStep = 1.0F;
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- this.random = RandomSource.create();
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+ this.random = SHARED_RANDOM; // Paper - Share random for entities to make them more random
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this.remainingFireTicks = -this.getFireImmuneTicks();
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this.fluidHeight = new Object2DoubleArrayMap(2);
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this.fluidOnEyes = new HashSet();
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Squid.java b/src/main/java/net/minecraft/world/entity/animal/Squid.java
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index bcccd7d808a3bef4acafe2e6b484ba0ed8059507..f9fdc600dc680c55219fcbf9bc8f151a733a093c 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Squid.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Squid.java
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@@ -46,7 +46,7 @@ public class Squid extends AgeableWaterCreature {
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public Squid(EntityType<? extends Squid> type, Level world) {
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super(type, world);
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- this.random.setSeed((long)this.getId());
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+ //this.random.setSeed((long)this.getId()); // Paper - Share random for entities to make them more random
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this.tentacleSpeed = 1.0F / (this.random.nextFloat() + 1.0F) * 0.2F;
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}
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