From a5d6c56f8cb5eab1d0c9823142c61de97230ee94 Mon Sep 17 00:00:00 2001
From: Simon Robertshaw <simon@hardwired.org.uk>
Date: Wed, 25 Jul 2012 19:33:40 +0100
Subject: [PATCH] TPT: Salt should only melt ice that is above saltwater
 freezing temperature 3e1d3cd5a6

---
 src/simulation/elements/ICEI.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/simulation/elements/ICEI.cpp b/src/simulation/elements/ICEI.cpp
index fd5dc635a..e355804c3 100644
--- a/src/simulation/elements/ICEI.cpp
+++ b/src/simulation/elements/ICEI.cpp
@@ -61,7 +61,7 @@ int Element_ICEI::update(UPDATE_FUNC_ARGS)
 				r = pmap[y+ry][x+rx];
 				if (!r)
 					continue;
-				if (((r&0xFF)==PT_SALT || (r&0xFF)==PT_SLTW) && 1>(rand()%1000))
+				if (((r&0xFF)==PT_SALT || (r&0xFF)==PT_SLTW) && parts[i].temp > ptransitions[PT_SLTW].tlv && 1>(rand()%1000))
 				{
 					sim->part_change_type(i,x,y,PT_SLTW);
 					sim->part_change_type(r>>8,x+rx,y+ry,PT_SLTW);