--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/tile_type.h	Wed Jan 09 18:11:12 2008 +0000
@@ -0,0 +1,63 @@
+/* $Id$ */
+
+/** @file tile_type.h Types related to tiles. */
+
+#ifndef TILE_TYPE_H
+#define TILE_TYPE_H
+
+#include "core/enum_type.hpp"
+
+enum {
+	TILE_SIZE   = 16,   ///< Tiles are 16x16 "units" in size
+	TILE_PIXELS = 32,   ///< a tile is 32x32 pixels
+	TILE_HEIGHT =  8,   ///< The standard height-difference between tiles on two levels is 8 (z-diff 8)
+
+	MAX_TILE_HEIGHT     = 15,                    ///< Maximum allowed tile height
+	MAX_SNOWLINE_HEIGHT = (MAX_TILE_HEIGHT - 2), ///< Maximum allowed snowline height
+};
+
+
+/**
+ * The different type of a tile.
+ *
+ * Each tile belongs to one type, according whatever is build on it.
+ *
+ * @note A railway with a crossing street is marked as MP_ROAD.
+ */
+enum TileType {
+	MP_CLEAR,               ///< A tile without any structures, i.e. grass, rocks, farm fields etc.
+	MP_RAILWAY,             ///< A railway
+	MP_ROAD,                ///< A tile with road (or tram tracks)
+	MP_HOUSE,               ///< A house by a town
+	MP_TREES,               ///< Tile got trees
+	MP_STATION,             ///< A tile of a station
+	MP_WATER,               ///< Water tile
+	MP_VOID,                ///< Invisible tiles at the SW and SE border
+	MP_INDUSTRY,            ///< Part of an industry
+	MP_TUNNELBRIDGE,        ///< Tunnel entry/exit and bridge heads
+	MP_UNMOVABLE,           ///< Contains an object with cannot be removed like transmitters
+};
+
+/**
+ * Additional infos of a tile on a tropic game.
+ *
+ * Each non-water tile in a tropic game is either a rainforest tile or a
+ * desert one.
+ */
+enum TropicZone {
+	TROPICZONE_INVALID    = 0,      ///< Invalid tropiczone-type
+	TROPICZONE_DESERT     = 1,      ///< Tile is desert
+	TROPICZONE_RAINFOREST = 2,      ///< Rainforest tile
+};
+
+/**
+ * The index/ID of a Tile.
+ */
+typedef uint32 TileIndex;
+
+/**
+ * The very nice invalid tile marker
+ */
+static const TileIndex INVALID_TILE = (TileIndex)-1;
+
+#endif /* TILE_TYPE_H */