From d6200ab9a53d206cefaccbde9a1b572440ecd31c Mon Sep 17 00:00:00 2001
From: CovertJaguar <CovertJaguar@gmail.com>
Date: Mon, 15 Jul 2013 12:55:01 -0700
Subject: [PATCH] Horizon Pattern shouldn't block if no stack

---
 common/buildcraft/builders/FillerHorizon.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/buildcraft/builders/FillerHorizon.java b/common/buildcraft/builders/FillerHorizon.java
index 512479bd..155cb4e1 100644
--- a/common/buildcraft/builders/FillerHorizon.java
+++ b/common/buildcraft/builders/FillerHorizon.java
@@ -25,7 +25,7 @@ public class FillerHorizon extends FillerPattern {
 		int xMax = (int) box.pMax().x;
 		int zMax = (int) box.pMax().z;
 
-		if (flatten(xMin, 1, zMin, xMax, yMin - 1, zMax, tile.worldObj, stackToPlace)) {
+		if (stackToPlace != null && flatten(xMin, 1, zMin, xMax, yMin - 1, zMax, tile.worldObj, stackToPlace)) {
 			return false;
 		}
 		return !empty(xMin, yMin, zMin, xMax, tile.worldObj.getActualHeight(), zMax, tile.worldObj);