Paper/Spigot-Server-Patches/0075-Fix-inter-world-teleportation-glitches.patch
Aikar 9ff01b16ab Add MCUtils helper
This will be used by my next commit. But trying to get the build going
since CI blew up
2016-03-28 21:01:42 -04:00

44 lines
2.4 KiB
Diff

From 9498346a722c19b0d8b45ac0cb712a34c1e7a3bf Mon Sep 17 00:00:00 2001
From: Sudzzy <originmc@outlook.com>
Date: Thu, 3 Mar 2016 02:50:31 -0600
Subject: [PATCH] Fix inter-world teleportation glitches
People are able to abuse the way Bukkit handles teleportation across worlds since it provides a built in teleportation safety check.
To abuse the safety check, players are required to get into a location deemed unsafe by Bukkit e.g. be within a chest or door block. While they are in this block, they accept a teleport request from a player within a different world. Once the player teleports, Minecraft will recursively search upwards for a safe location, this could eventually land within a player's skybase.
Example setup to perform the glitch: http://puu.sh/ng3PC/cf072dcbdb.png
The wanted destination was on top of the emerald block however the player ended on top of the diamond block. This only is the case if the player is teleporting between worlds.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index c245599..75b22fa 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -272,4 +272,9 @@ public class PaperWorldConfig {
private void portalSearchRadius() {
portalSearchRadius = getInt("portal-search-radius", 128);
}
+
+ public boolean disableTeleportationSuffocationCheck;
+ private void disableTeleportationSuffocationCheck() {
+ disableTeleportationSuffocationCheck = getBoolean("disable-teleportation-suffocation-check", false);
+ }
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 609f7ea..2f86dd3 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -553,7 +553,8 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
if (fromWorld == toWorld) {
entity.playerConnection.teleport(to);
} else {
- server.getHandle().moveToWorld(entity, toWorld.dimension, true, to, true);
+ // Paper - Configurable suffocation check
+ server.getHandle().moveToWorld(entity, toWorld.dimension, true, to, !toWorld.paperConfig.disableTeleportationSuffocationCheck);
}
return true;
}
--
2.7.4