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Add toggle for RNG manipulation (Closes #1051)

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Encode42
2022-07-12 14:19:51 -04:00
parent 4044790a61
commit 44b914cfe1
1 changed files with 59 additions and 0 deletions
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patches/server/0285-Add-toggle-for-RNG-manipulation.patch Normal file
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@@ -0,0 +1,59 @@
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 3d4d3ec099a37458d43a0500724eec7594097a41..41ad6375ed19d9f21f131a7cad210254c8a20750 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -419,7 +419,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
public int activatedPriority = gg.pufferfish.pufferfish.PufferfishConfig.maximumActivationPrio; // golf score
public final BlockPos.MutableBlockPos cachedBlockPos = new BlockPos.MutableBlockPos(); // used where needed
// Pufferfish end
-
+
public float getBukkitYaw() {
return this.yRot;
}
@@ -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 fad04b8c56d6183bc72f78915847e56c77228106..c75fbe3f3f9f92535e0de92a9fa1fe1ade213192 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -201,9 +201,11 @@ 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;