From a2b0a5e6225e0530e0695e0b4c421db6c679163c Mon Sep 17 00:00:00 2001
From: dordsor21 <dordsor21@gmail.com>
Date: Thu, 7 May 2020 19:38:42 +0100
Subject: [PATCH] Fix offset mask (< and >)

---
 .../java/com/sk89q/worldedit/function/mask/OffsetMask.java  | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/OffsetMask.java b/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/OffsetMask.java
index 5fab17454..d6a3dc7f6 100644
--- a/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/OffsetMask.java
+++ b/worldedit-core/src/main/java/com/sk89q/worldedit/function/mask/OffsetMask.java
@@ -88,7 +88,11 @@ public class OffsetMask extends AbstractMask {
 
     @Override
     public boolean test(Extent extent, BlockVector3 pos) {
-        return getMask().test(extent, pos);
+        BlockVector3 testPos = pos.add(offset);
+        if (testPos.getBlockY() < 0 || testPos.getBlockY() > 255) {
+            return false;
+        }
+        return getMask().test(extent, pos.add(offset));
     }
 
     @Nullable