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Paper-Old/patches/server/0194-Block-Enderpearl-Travel-Exploit.patch
Nassim Jahnke dcc290167f
Updated Upstream (Bukkit/CraftBukkit/Spigot)
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:
dea9ce0a SPIGOT-7198: Add Sittable interface to Camel

CraftBukkit Changes:
eecb4c0dc SPIGOT-7196: Exception loading alternate worlds
0ff61e8fa SPIGOT-7198: Add Sittable interface to Camel
676441aac PR-1121: Handle additional missing SpawnEggs in MetaSpawnEgg
e85280e02 Handle missing SpawnEggs in MetaSpawnEgg

Spigot Changes:
d90018e0 SPIGOT-7199: NPE loading or creating world with custom chunk generator
2022-12-08 11:53:14 +01:00

47 Zeilen
2.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 30 Apr 2018 17:15:26 -0400
Subject: [PATCH] Block Enderpearl Travel Exploit
Players are able to use alt accounts and enderpearls to travel
long distances utilizing the pearls in unloaded chunks and loading
the chunk later when convenient.
This disables that by not saving the thrower when the chunk is unloaded.
This is mainly useful for survival servers that do not allow freeform teleporting.
== AT ==
public net.minecraft.world.entity.projectile.Projectile cachedOwner
public net.minecraft.world.entity.projectile.Projectile ownerUUID
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 349a9f4596cd1411ec3a69cd7d6f5414971b74ef..45485383943f1ae0d4c5b5064cbaa8f56181dad3 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2179,6 +2179,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
public void onTickingEnd(Entity entity) {
ServerLevel.this.entityTickList.remove(entity);
+ // Paper start - Reset pearls when they stop being ticked
+ if (paperConfig().fixes.disableUnloadedChunkEnderpearlExploit && entity instanceof net.minecraft.world.entity.projectile.ThrownEnderpearl pearl) {
+ pearl.cachedOwner = null;
+ pearl.ownerUUID = null;
+ }
+ // Paper end
}
public void onTrackingStart(Entity entity) {
diff --git a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
index a5f018514d08f2563d5f18f4d787181e83c7cbef..d8760dd282221fa10b486f1ec4634c1aafd9c26e 100644
--- a/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
+++ b/src/main/java/net/minecraft/world/entity/projectile/Projectile.java
@@ -89,6 +89,7 @@ public abstract class Projectile extends Entity {
protected void readAdditionalSaveData(CompoundTag nbt) {
if (nbt.hasUUID("Owner")) {
this.ownerUUID = nbt.getUUID("Owner");
+ 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
}
this.leftOwner = nbt.getBoolean("LeftOwner");