From dfb566331390a87f01d048f57ed6d51b2f329d65 Mon Sep 17 00:00:00 2001
From: zuu <zuu@openttd.org>
Date: Sat, 12 Oct 2013 22:07:58 +0000
Subject: (svn r25849) -Codechange: Introduce IsTileFlat to not compute full
 slope information for situations when we only want to know if a tile is flat
 or not (cirdan, LordAro)

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

(limited to 'src/industry_cmd.cpp')

diff --git a/src/industry_cmd.cpp b/src/industry_cmd.cpp
index c29a00820..7841ce84c 100644
--- a/src/industry_cmd.cpp
+++ b/src/industry_cmd.cpp
@@ -1386,7 +1386,7 @@ static CommandCost CheckIfIndustryTilesAreFree(TileIndex tile, const IndustryTil
 
 		if (gfx == GFX_WATERTILE_SPECIALCHECK) {
 			if (!IsTileType(cur_tile, MP_WATER) ||
-					GetTileSlope(cur_tile) != SLOPE_FLAT) {
+					!IsTileFlat(cur_tile)) {
 				return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
 			}
 		} else {
-- 
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