--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/newgrf_station.h	Wed Jan 03 08:49:36 2007 +0000
@@ -0,0 +1,128 @@
+/* $Id$ */
+
+/** @file newgrf_station.h Header file for NewGRF stations */
+
+#ifndef NEWGRF_STATION_H
+#define NEWGRF_STATION_H
+
+#include "engine.h"
+#include "newgrf_cargo.h"
+
+typedef enum {
+	STAT_CLASS_DFLT,     ///< Default station class.
+	STAT_CLASS_WAYP,     ///< Waypoint class.
+	STAT_CLASS_MAX = 32, ///< Maximum number of classes.
+} StationClassID;
+
+/* Station layout for given dimensions - it is a two-dimensional array
+ * where index is computed as (x * platforms) + platform. */
+typedef byte *StationLayout;
+
+typedef struct StationSpec {
+	uint32 grfid; ///< ID of GRF file station belongs to.
+	int localidx; ///< Index within GRF file of station.
+
+	bool allocated; ///< Flag whether this station has been added to a station class list
+
+	StationClassID sclass; ///< The class to which this spec belongs.
+	StringID name; ///< Name of this station.
+
+	/**
+	 * Bitmask of number of platforms available for the station.
+	 * 0..6 correpsond to 1..7, while bit 7 corresponds to >7 platforms.
+	 */
+	byte disallowed_platforms;
+	/**
+	 * Bitmask of platform lengths available for the station.
+	 * 0..6 correpsond to 1..7, while bit 7 corresponds to >7 tiles long.
+	 */
+	byte disallowed_lengths;
+
+	/** Number of tile layouts.
+	 * A minimum of 8 is required is required for stations.
+	 * 0-1 = plain platform
+	 * 2-3 = platform with building
+	 * 4-5 = platform with roof, left side
+	 * 6-7 = platform with roof, right side
+	 */
+	uint tiles;
+	DrawTileSprites *renderdata; ///< Array of tile layouts.
+	bool copied_renderdata;
+
+	/** Cargo threshold for choosing between little and lots of cargo
+	 * @note little/lots are equivalent to the moving/loading states for vehicles
+	 */
+	uint16 cargo_threshold;
+
+	uint32 cargo_triggers; ///< Bitmask of cargo types which cause trigger re-randomizing
+
+	byte callbackmask; ///< Bitmask of callbacks to use, @see newgrf_callbacks.h
+
+	byte flags; ///< Bitmask of flags, bit 0: use different sprite set; bit 1: divide cargo about by station size
+
+	byte pylons;  ///< Bitmask of base tiles (0 - 7) which should contain elrail pylons
+	byte wires;   ///< Bitmask of base tiles (0 - 7) which should contain elrail wires
+	byte blocked; ///< Bitmask of base tiles (0 - 7) which are blocked to trains
+
+	byte lengths;
+	byte *platforms;
+	StationLayout **layouts;
+	bool copied_layouts;
+
+	/**
+	 * NUM_GLOBAL_CID sprite groups.
+	 * Used for obtaining the sprite offset of custom sprites, and for
+	 * evaluating callbacks.
+	 */
+	const struct SpriteGroup *spritegroup[NUM_GLOBAL_CID];
+} StationSpec;
+
+/**
+ * Struct containing information relating to station classes.
+ */
+typedef struct StationClass {
+	uint32 id;          ///< ID of this class, e.g. 'DFLT', 'WAYP', etc.
+	StringID name;      ///< Name of this class.
+	uint stations;      ///< Number of stations in this class.
+	StationSpec **spec; ///< Array of station specifications.
+} StationClass;
+
+void ResetStationClasses(void);
+StationClassID AllocateStationClass(uint32 cls);
+void SetStationClassName(StationClassID sclass, StringID name);
+StringID GetStationClassName(StationClassID sclass);
+StringID *BuildStationClassDropdown(void);
+
+uint GetNumStationClasses(void);
+uint GetNumCustomStations(StationClassID sclass);
+
+void SetCustomStationSpec(StationSpec *statspec);
+const StationSpec *GetCustomStationSpec(StationClassID sclass, uint station);
+const StationSpec *GetCustomStationSpecByGrf(uint32 grfid, byte localidx);
+
+/* Evaluate a tile's position within a station, and return the result a bitstuffed format. */
+uint32 GetPlatformInfo(Axis axis, byte tile, int platforms, int length, int x, int y, bool centred);
+
+/* Get sprite offset for a given custom station and station structure (may be
+ * NULL - that means we are in a build dialog). The station structure is used
+ * for variational sprite groups. */
+SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile);
+SpriteID GetCustomStationGroundRelocation(const StationSpec *statspec, const Station *st, TileIndex tile);
+uint16 GetStationCallback(uint16 callback, uint32 param1, uint32 param2, const StationSpec *statspec, const Station *st, TileIndex tile);
+
+/* Check if a rail station tile is traversable. */
+bool IsStationTileBlocked(TileIndex tile);
+
+/* Check if a rail station tile is electrifiable. */
+bool IsStationTileElectrifiable(TileIndex tile);
+
+/* Allocate a StationSpec to a Station. This is called once per build operation. */
+int AllocateSpecToStation(const StationSpec *statspec, Station *st, bool exec);
+
+/* Deallocate a StationSpec from a Station. Called when removing a single station tile. */
+void DeallocateSpecFromStation(Station* st, byte specindex);
+
+/* Draw representation of a station tile for GUI purposes. */
+bool DrawStationTile(int x, int y, RailType railtype, Axis axis, StationClassID sclass, uint station);
+
+#endif /* NEWGRF_STATION_H */