Paper/patches/server/0810-Ensure-entity-passenger-world-matches-ridden-entity.patch
2023-06-08 21:29:58 -07:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Thu, 31 Mar 2022 05:11:37 -0700
Subject: [PATCH] Ensure entity passenger world matches ridden entity
Bad plugins doing this would cause some obvious problems...
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index dc676cdabfa306a3975e25f981078ead317196c1..a016fbe3d0ca0481d07eefc8fbd155aaf303ca05 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2844,6 +2844,12 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
protected boolean addPassenger(Entity entity) { // CraftBukkit
+ // Paper start
+ if (entity.level != this.level) {
+ LOGGER.error("Entity passenger world must match, cannot add " + entity + " as passenger to " + this, new Throwable());
+ return false;
+ }
+ // Paper end
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)");