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https://github.com/PaperMC/Paper.git
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58 lines
3.3 KiB
Diff
58 lines
3.3 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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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 7dbd03897bf98ef19509972fb8d09aa071d7de3a..0129a469d991225a0cef281e0e0eeb069fe4cfb5 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -419,4 +419,10 @@ public class PaperWorldConfig {
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private void disableSprintInterruptionOnAttack() {
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disableSprintInterruptionOnAttack = getBoolean("game-mechanics.disable-sprint-interruption-on-attack", false);
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}
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+
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+ public boolean disableEnderpearlExploit = true;
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+ private void disableEnderpearlExploit() {
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+ disableEnderpearlExploit = getBoolean("game-mechanics.disable-unloaded-chunk-enderpearl-exploit", disableEnderpearlExploit);
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+ log("Disable Unloaded Chunk Enderpearl Exploit: " + (disableEnderpearlExploit ? "enabled" : "disabled"));
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+ }
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}
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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 5ee25084459f4cfcc8a95001a9d480e4a235f9f0..d2ecaf71e52123d5a015d49049d2a8e5b7332e97 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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@@ -2069,6 +2069,12 @@ 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.disableEnderpearlExploit && 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 cf8498165065c7db1be9cf7de492c1a41817cbf1..5cb04230e22e7e9463d4e89792fca569970e10b7 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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@@ -88,6 +88,7 @@ public abstract class Projectile extends Entity {
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protected void readAdditionalSaveData(CompoundTag nbt) {
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if (nbt.hasUUID("Owner")) {
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this.ownerUUID = nbt.getUUID("Owner");
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+ if (this instanceof ThrownEnderpearl && this.level != null && this.level.paperConfig.disableEnderpearlExploit) { 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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