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64 lines
3.6 KiB
Diff
64 lines
3.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Sun, 10 Jul 2022 14:13:22 -0700
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Subject: [PATCH] Don't use level random in entity constructors
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Paper makes the entity random thread-safe
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and constructing an entity off the main thread
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should be supported. Some entities (for whatever
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reason) use the level's random in some places.
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diff --git a/src/main/java/net/minecraft/world/entity/animal/Bee.java b/src/main/java/net/minecraft/world/entity/animal/Bee.java
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index e06d5eea4bc81be264a1f5d5fad2d4548c4ae8d2..55026e1731e41b4e3e4c6a8fef5d96a32051a556 100644
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--- a/src/main/java/net/minecraft/world/entity/animal/Bee.java
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+++ b/src/main/java/net/minecraft/world/entity/animal/Bee.java
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@@ -1029,7 +1029,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
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BeeGoToHiveGoal() {
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super();
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- this.travellingTicks = Bee.this.level().random.nextInt(10);
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+ this.travellingTicks = Bee.this./* level(). */random.nextInt(10); // Paper - use entity random
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this.blacklistedTargets = Lists.newArrayList();
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this.setFlags(EnumSet.of(Goal.Flag.MOVE));
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}
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@@ -1146,7 +1146,7 @@ public class Bee extends Animal implements NeutralMob, FlyingAnimal {
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BeeGoToKnownFlowerGoal() {
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super();
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- this.travellingTicks = Bee.this.level().random.nextInt(10);
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+ this.travellingTicks = Bee.this./* level(). */random.nextInt(10); // Paper - use entity random
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this.setFlags(EnumSet.of(Goal.Flag.MOVE));
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}
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diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
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index b76270c37b568b69af99a2a99dbab3f2f1b57d22..08a2ce0ab024b99df5f6e23aa5a13c9d6f431db6 100644
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--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
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+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
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@@ -64,7 +64,12 @@ public class ItemEntity extends Entity implements TraceableEntity {
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}
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public ItemEntity(Level world, double x, double y, double z, ItemStack stack) {
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- this(world, x, y, z, stack, world.random.nextDouble() * 0.2D - 0.1D, 0.2D, world.random.nextDouble() * 0.2D - 0.1D);
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+ // Paper start - don't use world random in entity constructor
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+ this(EntityType.ITEM, world);
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+ this.setPos(x, y, z);
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+ this.setDeltaMovement(this.random.nextDouble() * 0.2D - 0.1D, 0.2D, this.random.nextDouble() * 0.2D - 0.1D);
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+ this.setItem(stack);
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+ // Paper end
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}
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public ItemEntity(Level world, double x, double y, double z, ItemStack stack, double velocityX, double velocityY, double velocityZ) {
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diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
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index 57f9bf73ee14bc8811d0192543caf2b02e890ee0..4ce3e69970dd9eb251d0538a2d233ca30e9e5e47 100644
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--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
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+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
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@@ -36,7 +36,7 @@ public class PrimedTnt extends Entity implements TraceableEntity {
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public PrimedTnt(Level world, double x, double y, double z, @Nullable LivingEntity igniter) {
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this(EntityType.TNT, world);
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this.setPos(x, y, z);
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- double d3 = world.random.nextDouble() * 6.2831854820251465D;
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+ double d3 = this.random.nextDouble() * 6.2831854820251465D; // Paper - don't use world random in entity constructor
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this.setDeltaMovement(-Math.sin(d3) * 0.02D, 0.20000000298023224D, -Math.cos(d3) * 0.02D);
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this.setFuse(80);
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