From 19265f90b53f78867e779c8cea4b237694e462d3 Mon Sep 17 00:00:00 2001 From: Aikar Date: Thu, 16 Aug 2018 17:36:41 -0400 Subject: [PATCH] Ensure chunks are always loaded on hard position sets Player Movement, Entity Creation and Teleportation move entities with a very "You are here, no debate" change, making the server register them as there, regardless if that chunk was loaded or not. It appears possible that with hack clients and lag, a player may be able to move fast enough to move into an unloaded chunk and get into a buggy state. To prevent this, we will ensure a chunk is always loaded, guaranteeing that the entity will be properly registered into its new home comfortably. diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java index 2f87439c47..4252e8c02a 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -1364,6 +1364,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke this.lastYaw -= 360.0F; } + world.getChunkAt((int) Math.floor(this.locX) >> 4, (int) Math.floor(this.locZ) >> 4); // Paper - ensure chunk is always loaded this.setPosition(this.locX, this.locY, this.locZ); this.setYawPitch(f, f1); } -- 2.18.0