tron@3069: /* $Id$ */
tron@3069: 
tron@3145: #ifndef ROAD_MAP_H
tron@3145: #define ROAD_MAP_H
tron@3069: 
tron@3069: #include "macros.h"
tron@3099: #include "rail.h"
tron@3518: #include "road.h"
tron@3099: #include "tile.h"
tron@3069: 
tron@3146: 
rubidium@3793: typedef enum RoadTileType {
rubidium@3793: 	ROAD_TILE_NORMAL,
rubidium@3793: 	ROAD_TILE_CROSSING,
rubidium@3793: 	ROAD_TILE_DEPOT
rubidium@3793: } RoadTileType;
tron@3369: 
rubidium@3793: static inline RoadTileType GetRoadTileType(TileIndex t)
tron@3069: {
tron@3369: 	assert(IsTileType(t, MP_STREET));
tron@4000: 	return (RoadTileType)GB(_m[t].m5, 4, 4);
tron@3150: }
tron@3150: 
tron@3497: static inline bool IsLevelCrossing(TileIndex t)
tron@3497: {
rubidium@3793: 	return GetRoadTileType(t) == ROAD_TILE_CROSSING;
tron@3497: }
tron@3497: 
Darkvater@3560: static inline bool IsLevelCrossingTile(TileIndex t)
Darkvater@3560: {
Darkvater@3560: 	return IsTileType(t, MP_STREET) && IsLevelCrossing(t);
Darkvater@3560: }
tron@3150: 
tron@3369: static inline RoadBits GetRoadBits(TileIndex t)
tron@3272: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_NORMAL);
tron@4000: 	return (RoadBits)GB(_m[t].m5, 0, 4);
tron@3369: }
tron@3369: 
tron@3369: static inline void SetRoadBits(TileIndex t, RoadBits r)
tron@3369: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_NORMAL); // XXX incomplete
tron@3369: 	SB(_m[t].m5, 0, 4, r);
tron@3369: }
tron@3369: 
tron@3369: 
tron@3369: static inline Axis GetCrossingRoadAxis(TileIndex t)
tron@3369: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
tron@3369: 	return (Axis)GB(_m[t].m5, 3, 1);
tron@3272: }
tron@3272: 
tron@3070: static inline RoadBits GetCrossingRoadBits(TileIndex tile)
tron@3070: {
tron@3272: 	return GetCrossingRoadAxis(tile) == AXIS_X ? ROAD_X : ROAD_Y;
tron@3070: }
tron@3070: 
tron@3103: static inline TrackBits GetCrossingRailBits(TileIndex tile)
tron@3103: {
tron@4158: 	return AxisToTrackBits(OtherAxis(GetCrossingRoadAxis(tile)));
tron@3103: }
tron@3103: 
tron@3103: 
tron@3274: // TODO swap owner of road and rail
tron@3274: static inline Owner GetCrossingRoadOwner(TileIndex t)
tron@3274: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
tron@3274: 	return (Owner)_m[t].m3;
tron@3274: }
tron@3274: 
tron@3274: static inline void SetCrossingRoadOwner(TileIndex t, Owner o)
tron@3274: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
tron@3274: 	_m[t].m3 = o;
tron@3274: }
tron@3274: 
celestar@3322: static inline void UnbarCrossing(TileIndex t)
celestar@3322: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
celestar@3322: 	CLRBIT(_m[t].m5, 2);
celestar@3322: }
celestar@3322: 
celestar@3322: static inline void BarCrossing(TileIndex t)
celestar@3322: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
celestar@3322: 	SETBIT(_m[t].m5, 2);
celestar@3322: }
celestar@3322: 
celestar@3322: static inline bool IsCrossingBarred(TileIndex t)
celestar@3322: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_CROSSING);
celestar@3322: 	return HASBIT(_m[t].m5, 2);
celestar@3322: }
tron@3274: 
celestar@3430: #define IsOnDesert IsOnSnow
celestar@3430: static inline bool IsOnSnow(TileIndex t)
celestar@3430: {
celestar@3430: 	return HASBIT(_m[t].m4, 7);
celestar@3430: }
celestar@3430: 
celestar@3430: #define ToggleDesert ToggleSnow
celestar@3430: static inline void ToggleSnow(TileIndex t)
celestar@3430: {
celestar@3430: 	TOGGLEBIT(_m[t].m4, 7);
celestar@3430: }
celestar@3430: 
celestar@3430: 
tron@4048: typedef enum Roadside {
tron@4048: 	ROADSIDE_BARREN           = 0,
tron@4048: 	ROADSIDE_GRASS            = 1,
tron@4048: 	ROADSIDE_PAVED            = 2,
tron@4048: 	ROADSIDE_STREET_LIGHTS    = 3,
tron@4048: 	ROADSIDE_TREES            = 5,
tron@4048: 	ROADSIDE_GRASS_ROAD_WORKS = 6,
tron@4048: 	ROADSIDE_PAVED_ROAD_WORKS = 7
tron@4048: } Roadside;
celestar@3430: 
tron@4048: static inline Roadside GetRoadside(TileIndex tile)
celestar@3430: {
tron@4048: 	return (Roadside)GB(_m[tile].m4, 4, 3);
celestar@3430: }
celestar@3430: 
tron@4048: static inline void SetRoadside(TileIndex tile, Roadside s)
celestar@3430: {
tron@4048: 	SB(_m[tile].m4, 4, 3, s);
celestar@3430: }
celestar@3430: 
celestar@3430: static inline bool HasRoadWorks(TileIndex t)
celestar@3430: {
tron@4048: 	return GetRoadside(t) >= ROADSIDE_GRASS_ROAD_WORKS;
celestar@3430: }
celestar@3430: 
celestar@3430: static inline bool IncreaseRoadWorksCounter(TileIndex t)
celestar@3430: {
celestar@3430: 	AB(_m[t].m4, 0, 4, 1);
celestar@3430: 
celestar@3430: 	return GB(_m[t].m4, 0, 4) == 15;
celestar@3430: }
celestar@3430: 
celestar@3430: static inline void StartRoadWorks(TileIndex t)
celestar@3430: {
celestar@3430: 	assert(!HasRoadWorks(t));
celestar@3430: 	/* Remove any trees or lamps in case or roadwork */
tron@4048: 	switch (GetRoadside(t)) {
tron@4048: 		case ROADSIDE_BARREN:
tron@4048: 		case ROADSIDE_GRASS:  SetRoadside(t, ROADSIDE_GRASS_ROAD_WORKS); break;
tron@4048: 		default:              SetRoadside(t, ROADSIDE_PAVED_ROAD_WORKS); break;
tron@4045: 	}
celestar@3430: }
celestar@3430: 
celestar@3430: static inline void TerminateRoadWorks(TileIndex t)
celestar@3430: {
celestar@3430: 	assert(HasRoadWorks(t));
tron@4048: 	SetRoadside(t, (Roadside)(GetRoadside(t) - ROADSIDE_GRASS_ROAD_WORKS + ROADSIDE_GRASS));
celestar@3430: 	/* Stop the counter */
celestar@3430: 	SB(_m[t].m4, 0, 4, 0);
celestar@3430: }
celestar@3430: 
tron@3069: 
tron@3369: static inline DiagDirection GetRoadDepotDirection(TileIndex t)
tron@3069: {
rubidium@3793: 	assert(GetRoadTileType(t) == ROAD_TILE_DEPOT);
tron@3369: 	return (DiagDirection)GB(_m[t].m5, 0, 2);
tron@3167: }
tron@3167: 
tron@3167: 
tron@3146: /**
tron@3146:  * Returns the RoadBits on an arbitrary tile
tron@3146:  * Special behavior:
tron@3146:  * - road depots: entrance is treated as road piece
tron@3146:  * - road tunnels: entrance is treated as road piece
tron@3196:  * - bridge ramps: start of the ramp is treated as road piece
tron@3146:  * - bridge middle parts: bridge itself is ignored
tron@3146:  */
tron@3146: RoadBits GetAnyRoadBits(TileIndex);
tron@3146: 
tron@3146: 
tron@3150: TrackBits GetAnyRoadTrackBits(TileIndex tile);
tron@3150: 
tron@3150: 
Darkvater@4849: static inline void MakeRoadNormal(TileIndex t, Owner owner, RoadBits bits, TownID town)
tron@3099: {
tron@3099: 	SetTileType(t, MP_STREET);
tron@3099: 	SetTileOwner(t, owner);
tron@3099: 	_m[t].m2 = town;
tron@3099: 	_m[t].m3 = 0;
tron@3099: 	_m[t].m4 = 0 << 7 | 0 << 4 | 0;
rubidium@3793: 	_m[t].m5 = ROAD_TILE_NORMAL << 4 | bits;
tron@3099: }
tron@3099: 
tron@3099: 
tron@3099: static inline void MakeRoadCrossing(TileIndex t, Owner road, Owner rail, Axis roaddir, RailType rt, uint town)
tron@3099: {
tron@3099: 	SetTileType(t, MP_STREET);
tron@3099: 	SetTileOwner(t, rail);
tron@3099: 	_m[t].m2 = town;
tron@3099: 	_m[t].m3 = road;
tron@3099: 	_m[t].m4 = 0 << 7 | 0 << 4 | rt;
rubidium@3793: 	_m[t].m5 = ROAD_TILE_CROSSING << 4 | roaddir << 3 | 0 << 2;
tron@3099: }
tron@3099: 
tron@3099: 
tron@3099: static inline void MakeRoadDepot(TileIndex t, Owner owner, DiagDirection dir)
tron@3099: {
tron@3099: 	SetTileType(t, MP_STREET);
tron@3099: 	SetTileOwner(t, owner);
tron@3099: 	_m[t].m2 = 0;
tron@3099: 	_m[t].m3 = 0;
tron@3099: 	_m[t].m4 = 0;
rubidium@3793: 	_m[t].m5 = ROAD_TILE_DEPOT << 4 | dir;
tron@3099: }
tron@3099: 
peter1138@4666: #endif /* ROAD_MAP_H */