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1281f4f552
This has been done to ensure that the shifts are not used until the world object is being constructed, which is before the global configuration is initialised. There also isn't any reason for these shifts to be global anyways.
46 lines
2.5 KiB
Diff
46 lines
2.5 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 30 Apr 2018 17:15:26 -0400
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Subject: [PATCH] Block Enderpearl Travel Exploit
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Players are able to use alt accounts and enderpearls to travel
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long distances utilizing the pearls in unloaded chunks and loading
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the chunk later when convenient.
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This disables that by not saving the thrower when the chunk is unloaded.
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This is mainly useful for survival servers that do not allow freeform teleporting.
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== AT ==
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public net.minecraft.world.entity.projectile.Projectile cachedOwner
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public net.minecraft.world.entity.projectile.Projectile ownerUUID
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index 5847f0ace5b7adb631f1f71f36b78807c8ab8509..7c1e5806d7b5e7dbb53050de24f5f6e668fa90f4 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -2369,6 +2369,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
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public void onTickingEnd(Entity entity) {
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ServerLevel.this.entityTickList.remove(entity);
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+ // Paper start - Reset pearls when they stop being ticked
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+ if (paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
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+ pearl.cachedOwner = null;
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+ pearl.ownerUUID = null;
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+ }
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+ // Paper end
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}
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public void onTrackingStart(Entity entity) {
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diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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index fbbb1fa3d5f4ace67fee96aa235cec3b39deb7b1..e8620ad6be2dda7fe288f884c4ae88a924be4a62 100644
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--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
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@@ -101,6 +101,7 @@ public abstract class Projectile extends Entity implements TraceableEntity {
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if (nbt.hasUUID("Owner")) {
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this.ownerUUID = nbt.getUUID("Owner");
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this.cachedOwner = null;
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+ if (this instanceof ThrownEnderpearl && this.level() != null && this.level().paperConfig().fixes.disableUnloadedChunkEnderpearlExploit) { this.ownerUUID = null; } // Paper - Don't store shooter name for pearls to block enderpearl travel exploit
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}
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this.leftOwner = nbt.getBoolean("LeftOwner");
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