diff --git a/src/tile.cpp b/src/tile.cpp
deleted file mode 100644
--- a/src/tile.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/* $Id$ */
-
-/** @file tile.cpp */
-
-#include "stdafx.h"
-#include "tile.h"
-
-Slope GetTileSlope(TileIndex tile, uint *h)
-{
-	uint a;
-	uint b;
-	uint c;
-	uint d;
-	uint min;
-	uint r;
-
-	assert(tile < MapSize());
-
-	if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) {
-		if (h != NULL) *h = 0;
-		return SLOPE_FLAT;
-	}
-
-	min = a = TileHeight(tile);
-	b = TileHeight(tile + TileDiffXY(1, 0));
-	if (min > b) min = b;
-	c = TileHeight(tile + TileDiffXY(0, 1));
-	if (min > c) min = c;
-	d = TileHeight(tile + TileDiffXY(1, 1));
-	if (min > d) min = d;
-
-	r = SLOPE_FLAT;
-	if ((a -= min) != 0) r += (--a << 4) + SLOPE_N;
-	if ((c -= min) != 0) r += (--c << 4) + SLOPE_E;
-	if ((d -= min) != 0) r += (--d << 4) + SLOPE_S;
-	if ((b -= min) != 0) r += (--b << 4) + SLOPE_W;
-
-	if (h != NULL) *h = min * TILE_HEIGHT;
-
-	return (Slope)r;
-}
-
-uint GetTileZ(TileIndex tile)
-{
-	if (TileX(tile) == MapMaxX() || TileY(tile) == MapMaxY()) return 0;
-
-	uint h = TileHeight(tile);
-	h = min(h, TileHeight(tile + TileDiffXY(1, 0)));
-	h = min(h, TileHeight(tile + TileDiffXY(0, 1)));
-	h = min(h, TileHeight(tile + TileDiffXY(1, 1)));
-
-	return h * TILE_HEIGHT;
-}
-
-
-uint GetTileMaxZ(TileIndex t)
-{
-	if (TileX(t) == MapMaxX() || TileY(t) == MapMaxY()) return 0;
-
-	uint h = TileHeight(t);
-	h = max(h, TileHeight(t + TileDiffXY(1, 0)));
-	h = max(h, TileHeight(t + TileDiffXY(0, 1)));
-	h = max(h, TileHeight(t + TileDiffXY(1, 1)));
-
-	return h * TILE_HEIGHT;
-}