Paper/patches/server/0768-Don-t-use-level-random-in-entity-constructors.patch
Nassim Jahnke 31699ae9a8
Updated Upstream (Bukkit/CraftBukkit) (#10242)
* Updated Upstream (Bukkit/CraftBukkit)

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:
a6a9d2a4 Remove some old ApiStatus.Experimental annotations
be72314c SPIGOT-7300, PR-829: Add new DamageSource API providing enhanced information about entity damage
b252cf05 SPIGOT-7576, PR-970: Add methods in MushroomCow to change stew effects
b1c689bd PR-902: Add Server#isLoggingIPs to get log-ips configuration
08f86d1c PR-971: Add Player methods for client-side potion effects
2e3024a9 PR-963: Add API for in-world structures
a23292a7 SPIGOT-7530, PR-948: Improve Resource Pack API with new 1.20.3 functionality
1851857b SPIGOT-3071, PR-969: Add entity spawn method with spawn reason
cde4c52a SPIGOT-5553, PR-964: Add EntityKnockbackEvent

CraftBukkit Changes:
38fd4bd50 Fix accidentally renamed internal damage method
80f0ce4be SPIGOT-7300, PR-1180: Add new DamageSource API providing enhanced information about entity damage
7e43f3b16 SPIGOT-7581: Fix typo in BlockMushroom
ea14b7d90 SPIGOT-7576, PR-1347: Add methods in MushroomCow to change stew effects
4c687f243 PR-1259: Add Server#isLoggingIPs to get log-ips configuration
22a541a29 Improve support for per-world game rules
cb7dccce2 PR-1348: Add Player methods for client-side potion effects
b8d6109f0 PR-1335: Add API for in-world structures
4398a1b5b SPIGOT-7577: Make CraftWindCharge#explode discard the entity
e74107678 Fix Crafter maximum stack size
0bb0f4f6a SPIGOT-7530, PR-1314: Improve Resource Pack API with new 1.20.3 functionality
4949f556d SPIGOT-3071, PR-1345: Add entity spawn method with spawn reason
20ac73ca2 PR-1353: Fix Structure#place not working as documented with 0 palette
3c1b77871 SPIGOT-6911, PR-1349: Change max book length in CraftMetaBook
333701839 SPIGOT-7572: Bee nests generated without bees
f48f4174c SPIGOT-5553, PR-1336: Add EntityKnockbackEvent
2024-02-11 22:28:00 +01:00

42 lines
2.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 10 Jul 2022 14:13:22 -0700
Subject: [PATCH] Don't use level random in entity constructors
Paper makes the entity random thread-safe
and constructing an entity off the main thread
should be supported. Some entities (for whatever
reason) use the level's random in some places.
diff --git a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
index 459f793a6603d4f98c84df4e549f069298c54985..8aaca29b115a55bf48306e71432c4c20d2bd21dc 100644
--- a/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/ItemEntity.java
@@ -66,7 +66,12 @@ public class ItemEntity extends Entity implements TraceableEntity {
}
public ItemEntity(Level world, double x, double y, double z, ItemStack stack) {
- this(world, x, y, z, stack, world.random.nextDouble() * 0.2D - 0.1D, 0.2D, world.random.nextDouble() * 0.2D - 0.1D);
+ // Paper start - Don't use level random in entity constructors (to make them thread-safe)
+ this(EntityType.ITEM, world);
+ this.setPos(x, y, z);
+ this.setDeltaMovement(this.random.nextDouble() * 0.2D - 0.1D, 0.2D, this.random.nextDouble() * 0.2D - 0.1D);
+ this.setItem(stack);
+ // Paper end - Don't use level random in entity constructors
}
public ItemEntity(Level world, double x, double y, double z, ItemStack stack, double velocityX, double velocityY, double velocityZ) {
diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
index 3408337b11f04337bb2f62de343e430d94d3a093..cd7b955754b809826048b80723e2e9055b373a4a 100644
--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
@@ -43,7 +43,7 @@ public class PrimedTnt extends Entity implements TraceableEntity {
public PrimedTnt(Level world, double x, double y, double z, @Nullable LivingEntity igniter) {
this(EntityType.TNT, world);
this.setPos(x, y, z);
- double d3 = world.random.nextDouble() * 6.2831854820251465D;
+ double d3 = this.random.nextDouble() * 6.2831854820251465D; // Paper - Don't use level random in entity constructors
this.setDeltaMovement(-Math.sin(d3) * 0.02D, 0.20000000298023224D, -Math.cos(d3) * 0.02D);
this.setFuse(80);