PaperMC/Spigot-Server-Patches/0171-Don-t-allow-entities-to-ride-themselves-572.patch
Aikar 05466e3b47
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Bukkit Changes:
d2834556 SPIGOT-4219: Event for PigZombies angering.

CraftBukkit Changes:
a9c796f1 SPIGOT-4184: Fix furnaces not matching Vanilla smelt or animations
195f071e SPIGOT-4219: Event for PigZombies angering.
5e3082c7 SPIGOT-4230: Improve legacy block types
2018-08-05 19:46:43 -04:00

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From 490f80cc952730f9b5974295f680abcde76b1d3c Mon Sep 17 00:00:00 2001
From: Alfie Cleveland <alfeh@me.com>
Date: Sun, 8 Jan 2017 04:31:36 +0000
Subject: [PATCH] Don't allow entities to ride themselves - #572
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index c287231584..3955884e10 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2077,6 +2077,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
protected void o(Entity entity) {
+ if (entity == this) throw new IllegalArgumentException("Entities cannot become a passenger of themselves"); // Paper - issue 572
if (entity.getVehicle() != this) {
throw new IllegalStateException("Use x.startRiding(y), not y.addPassenger(x)");
} else {
--
2.18.0