Files
Purpur/patches/server/0264-Add-toggle-for-RNG-manipulation.patch
granny 969064029c Updated Upstream (Paper)
Upstream has released updates that appear to apply and compile correctly

Paper Changes:
PaperMC/Paper@d129162 Properly handle BlockBreakEvent#isDropItems (#8936)
PaperMC/Paper@67a1a8c Fix Inventory#getLocation not working for the composter (#9596)
PaperMC/Paper@5b34a09 Add option to disable chorus plant and mushroom block updates (#9442)
PaperMC/Paper@ed8401c Fix rotation for spawning display entities (#9552)
PaperMC/Paper@bd67b83 Determine lava and water fluid explosion resistance by their block explosion resistance (#9482)
PaperMC/Paper@d928dda Don't tab-complete namespaced commands if `send-namespaced` is false (#9366)
PaperMC/Paper@f43a19c Fix CME in CraftPersistentDataTypeRegistry (#6701)
PaperMC/Paper@45ba652 [ci skip] Rebuild patches
PaperMC/Paper@990765b Fire entity death event for ender dragon (#9495)
PaperMC/Paper@1259b93 Fixed CraftItemStack/CraftItemMeta enchantment level inconsistency (#8792)
PaperMC/Paper@88891c3  Add Entity Coordinate and Rotation API (#9461)
PaperMC/Paper@5bf82aa Add cancellability to PlayerTrackEntityEvent (#8605)
PaperMC/Paper@1b96c64 Improve cancelling PreCreatureSpawnEvent with per player mob spawns (#9400)
PaperMC/Paper@7232506 Add entity tracker min Y distance config option (#9406)
PaperMC/Paper@00a68b1 Player listing API (#8782)
PaperMC/Paper@af6142e [ci skip] Update Gradle wrapper
PaperMC/Paper@281855c Remove unused lag-compensate-block-breaking option (#9635)
PaperMC/Paper@35ef053 [ci skip] update editorconfig and gitattributes (#9608)
PaperMC/Paper@97b9c4a Fix NPE on Boat#getStatus (#9115)
PaperMC/Paper@2be57c6 Expand Pose API (#8781)
PaperMC/Paper@b29ecd4 Expose clicked BlockFace during BlockDamageEvent (#9632)
PaperMC/Paper@e3f29f4 MerchantRecipe: add copy constructor (#8703)
PaperMC/Paper@fed9042 More DragonBattle API (#5655)
PaperMC/Paper@27d39ca Properly clone custom nbt tags inside ItemMeta (#7849)
PaperMC/Paper@0c7385b Add PlayerPickItemEvent (#5590)
PaperMC/Paper@9395aa6 Improve performance of mass crafts (#9603)
PaperMC/Paper@7386a13 Fix endgateway teleportation offset (#9517)
PaperMC/Paper@a712766 Allow custom damage for trident (#8132)
PaperMC/Paper@3716832 Prevent overfilled bundles from duplicating items (#9633)
PaperMC/Paper@9cbad8e Expose Hand during BlockCanBuildEvent (#9636)
2023-08-22 18:41:13 -07:00

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3.0 KiB
Diff

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 c99d273b8d686872d5699e4490769786951256e1..156c2683d72c5e83b1cefb9ebf356c6e4d31e7f4 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -616,7 +616,7 @@ 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 == null || 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 88c238e492b1081d1a64a3b6f05d7baa17e5d8c9..dd7f2beabf0edad4143ac2365ac04a22edf1f75e 100644
--- a/src/main/java/net/minecraft/world/entity/animal/Squid.java
+++ b/src/main/java/net/minecraft/world/entity/animal/Squid.java
@@ -44,7 +44,7 @@ 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 ce7c96dd55ad88ad35fef9aa992952b8ac333d06..370b5ff992fb3ff7dd88ab479b3c251d36ced42f 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -204,9 +204,11 @@ 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;