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63 lines
3.5 KiB
Diff
63 lines
3.5 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 e5de2c1d11e5de88420caba35bf75c8bbd799db5..a9cdf9034ad269f7a71358443acc053288cfbe6d 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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@@ -1028,7 +1028,7 @@ 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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@@ -1145,7 +1145,7 @@ 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 4c78c04ed031ec2e04642ebe5d79527e848d95f6..fcc5444a1268931a0fd2df1e6bbbc17cfd5a61e0 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 {
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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 8101f358975b35b5a2dafbade3d14a910e408fa2..e09271450cae84f6206a20d6622918fe37380d59 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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@@ -35,7 +35,7 @@ public class PrimedTnt extends Entity {
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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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