From aea2fcd0a09fa47caf022934ba8029ec327906f7 Mon Sep 17 00:00:00 2001
From: frosch <frosch@openttd.org>
Date: Fri, 15 May 2009 22:45:31 +0000
Subject: [PATCH] (svn r16314) -Fix (r9315): Allow accessing the houseage when
 the house is not yet built.

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

diff --git a/src/newgrf_house.cpp b/src/newgrf_house.cpp
index 816ea513b9..3179edbfdf 100644
--- a/src/newgrf_house.cpp
+++ b/src/newgrf_house.cpp
@@ -255,7 +255,7 @@ static uint32 HouseGetVariable(const ResolverObject *object, byte variable, byte
 		case 0x40: return (IsTileType(tile, MP_HOUSE) ? GetHouseBuildingStage(tile) : 0) | TileHash2Bit(TileX(tile), TileY(tile)) << 2;
 
 		/* Building age. */
-		case 0x41: return GetHouseAge(tile);
+		case 0x41: return IsTileType(tile, MP_HOUSE) ? GetHouseAge(tile) : 0;
 
 		/* Town zone */
 		case 0x42: return GetTownRadiusGroup(town, tile);