From 36efb4864412537ff4a48a99337f220d601acc70 Mon Sep 17 00:00:00 2001
From: jacob1 <jfu614@gmail.com>
Date: Sat, 4 May 2013 16:40:04 -0400
Subject: possible piston bug fix for save 1176828


diff --git a/src/simulation/elements/PSTN.cpp b/src/simulation/elements/PSTN.cpp
index 4da1b73..35a470d 100644
--- a/src/simulation/elements/PSTN.cpp
+++ b/src/simulation/elements/PSTN.cpp
@@ -185,7 +185,7 @@ int Element_PSTN::CanMoveStack(Simulation * sim, int stackX, int stackY, int dir
 			if(spaces >= amount)
 				break;
 		} else {
-			if(currentPos < maxSize && !retract)
+			if(spaces < maxSize && !retract)
 				tempParts[currentPos++] = r>>8;
 			else
 				return spaces;
--
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