Paper/patches/server/0128-Don-t-allow-entities-to-ride-themselves-572.patch
2021-06-17 15:47:52 -07:00

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From 0000000000000000000000000000000000000000 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/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 27a6caea54ddd9efe3fc8da19877bee7fa7f4e3e..c9bb5427d68b1a4717e3f8bf584c40820ef0a4f0 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2239,6 +2239,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, n
}
protected boolean addPassenger(Entity entity) { // CraftBukkit
+ 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 {