From b30ed308ae82d190303baaf74ed819dade0c62bc Mon Sep 17 00:00:00 2001
From: Hea3veN <hea3venmc@gmail.com>
Date: Fri, 24 Apr 2015 00:00:55 -0300
Subject: [PATCH] fix a robot error on void worlds or worlds with holes in
 bedrock

---
 common/buildcraft/core/lib/utils/PathFinding.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/common/buildcraft/core/lib/utils/PathFinding.java b/common/buildcraft/core/lib/utils/PathFinding.java
index 6e8d106d..003a85f6 100755
--- a/common/buildcraft/core/lib/utils/PathFinding.java
+++ b/common/buildcraft/core/lib/utils/PathFinding.java
@@ -243,7 +243,9 @@ public class PathFinding implements IIterableAlgorithm {
 					int y = from.index.y + dy;
 					int z = from.index.z + dz;
 
-					if (endReached(x, y, z)) {
+					if (y < 0) {
+						resultMoves[dx + 1][dy + 1][dz + 1] = 0;
+					} else if (endReached(x, y, z)) {
 						resultMoves[dx + 1][dy + 1][dz + 1] = 2;
 					} else if (!BuildCraftAPI.isSoftBlock(world, x, y, z)) {
 						resultMoves[dx + 1][dy + 1][dz + 1] = 0;