From fc32e2019561f398c193f6e510e8482797303021 Mon Sep 17 00:00:00 2001
From: celestar <celestar@openttd.org>
Date: Mon, 20 Mar 2006 16:43:48 +0000
Subject: (svn r3992) -Fix: Rewrote the code to determine whether a rail-tile
 can be terraformed. Fixes a bug where you could terraform a tunnel (fixed by
 r3228, but reverted that one) Fixes a bug introduced by r3228 which allowed
 steep rail tiles resulting in ... unwanted effects such as display artifacts.
 That means the terraform feature should not work as intended; it also uses
 _valid_tileh_slopes to determine valid configurations instead of hand-brewn
 stuff. TODO: _terraform_err_tile and similar TileIndices should have
 INVALID_TILE as "unused", not 0. (0 is a valid tile).

---
 tile.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'tile.h')

diff --git a/tile.h b/tile.h
index af6c0e1f1..e3a0d45d6 100644
--- a/tile.h
+++ b/tile.h
@@ -24,6 +24,7 @@ typedef enum TileTypes {
 void SetMapExtraBits(TileIndex tile, byte flags);
 uint GetMapExtraBits(TileIndex tile);
 
+uint GetTileh(uint n, uint w, uint e, uint s, uint *h);
 uint GetTileSlope(TileIndex tile, uint *h);
 uint GetTileZ(TileIndex tile);
 
-- 
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