Files
Purpur/patches/server/0282-Add-toggle-for-RNG-manipulation.patch
Krakenied fff2015d52 Updated Upstream (Paper) (#1174)
Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@7b3b593 [ci skip] Update checkout action in workflow (#8510)
PaperMC/Paper@36869cc Fix new block data in EntityChangeBlockEvent for silverfish when mobGriefing isn't enabled (#8099)
PaperMC/Paper@2432233 Add allow server listing & text filtering client options (#7595)
PaperMC/Paper@954e6f0 Fix a bunch more forceDrops for dropping items (#8095)
PaperMC/Paper@32d95e9 Track projectile source for fireworks from dispensers (#8044)
PaperMC/Paper@0249750 Fix EntityArgument suggestion permissions to align with EntitySelector#checkPermissions (#8511)
PaperMC/Paper@8acb05d Make CommandSyntaxException implement ComponentMessageThrowable (#8513)
PaperMC/Paper@c264018 [ci skip] Undo modification to removed patches in latest commit (#8512)
PaperMC/Paper@304ab35 [ci skip] Remove old todo file
PaperMC/Paper@8a4b752 Fix wrong descriptor in ASMEventExecutorGenerator (#8506)
PaperMC/Paper@b743144 Fix MC-147659 (#8423)
PaperMC/Paper@aaf5e39 Deprecate unused VehicleEntityCollisionEvent methods (#8498)
2022-10-29 22:47:43 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Encode42 <me@encode42.dev>
Date: Tue, 12 Jul 2022 14:16:10 -0400
Subject: [PATCH] Add toggle for RNG manipulation
Paper patches RNG maniplulation by using a shared (and locked) random source.
This comes with a performance gain, but technical players may prefer the ability to manipulate RNG.
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index f9cf68820e01619a4ec319f18583a24115bfe112..cd97d28e85a6795099ec314e9574aa413ff93156 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -576,7 +576,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
this.bb = Entity.INITIAL_AABB;
this.stuckSpeedMultiplier = Vec3.ZERO;
this.nextStep = 1.0F;
- this.random = SHARED_RANDOM; // Paper
+ this.random = world.purpurConfig.entitySharedRandom ? SHARED_RANDOM : RandomSource.create(); // Paper // Purpur
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 21f5304e01e0844f1bbf3e1b2f9d50c01f8bf8fd..8afdb5d4fecbb45bad2ed801fc0e526d15ef07c5 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Squid.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Squid.java
@@ -46,7 +46,7 @@ public class Squid extends WaterAnimal {
public Squid(EntityType<? extends Squid> type, Level world) {
super(type, world);
- //this.random.setSeed((long) this.getId()); // Paper - we set the random to shared, do not clobber the seed
+ if (!world.purpurConfig.entitySharedRandom) this.random.setSeed((long) this.getId()); // Paper - we set the random to shared, do not clobber the seed // Purpur
this.tentacleSpeed = 1.0F / (this.random.nextFloat() + 1.0F) * 0.2F;
}
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 1c0d12579bcb375698ce40804279094d03d7133b..f4c1698a7e8a929313bbc5aec6df197237cc2680 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -207,9 +207,11 @@ public class PurpurWorldConfig {
public int entityLifeSpan = 0;
public float entityLeftHandedChance = 0.05f;
+ public boolean entitySharedRandom = true;
private void entitySettings() {
entityLifeSpan = getInt("gameplay-mechanics.entity-lifespan", entityLifeSpan);
entityLeftHandedChance = (float) getDouble("gameplay-mechanics.entity-left-handed-chance", entityLeftHandedChance);
+ entitySharedRandom = getBoolean("settings.entity.shared-random", entitySharedRandom);
}
public boolean infinityWorksWithoutArrows = false;