mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-16 00:12:51 +00:00
160 lines
3.2 KiB
C
160 lines
3.2 KiB
C
/* $Id$ */
|
|
|
|
#ifndef ROAD_MAP_H
|
|
#define ROAD_MAP_H
|
|
|
|
#include "macros.h"
|
|
#include "rail.h"
|
|
#include "tile.h"
|
|
|
|
typedef enum RoadBits {
|
|
ROAD_NW = 1,
|
|
ROAD_SW = 2,
|
|
ROAD_SE = 4,
|
|
ROAD_NE = 8,
|
|
ROAD_X = ROAD_SW | ROAD_NE,
|
|
ROAD_Y = ROAD_NW | ROAD_SE,
|
|
ROAD_ALL = ROAD_X | ROAD_Y
|
|
} RoadBits;
|
|
|
|
static inline RoadBits ComplementRoadBits(RoadBits r)
|
|
{
|
|
return ROAD_ALL ^ r;
|
|
}
|
|
|
|
static inline RoadBits DiagDirToRoadBits(DiagDirection d)
|
|
{
|
|
return 1 << (3 ^ d);
|
|
}
|
|
|
|
|
|
typedef enum RoadType {
|
|
ROAD_NORMAL,
|
|
ROAD_CROSSING,
|
|
ROAD_DEPOT
|
|
} RoadType;
|
|
|
|
static inline RoadType GetRoadType(TileIndex t)
|
|
{
|
|
assert(IsTileType(t, MP_STREET));
|
|
return GB(_m[t].m5, 4, 4);
|
|
}
|
|
|
|
|
|
static inline RoadBits GetRoadBits(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_NORMAL);
|
|
return GB(_m[t].m5, 0, 4);
|
|
}
|
|
|
|
static inline void SetRoadBits(TileIndex t, RoadBits r)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_NORMAL); // XXX incomplete
|
|
SB(_m[t].m5, 0, 4, r);
|
|
}
|
|
|
|
|
|
static inline Axis GetCrossingRoadAxis(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_CROSSING);
|
|
return (Axis)GB(_m[t].m5, 3, 1);
|
|
}
|
|
|
|
static inline RoadBits GetCrossingRoadBits(TileIndex tile)
|
|
{
|
|
return GetCrossingRoadAxis(tile) == AXIS_X ? ROAD_X : ROAD_Y;
|
|
}
|
|
|
|
static inline TrackBits GetCrossingRailBits(TileIndex tile)
|
|
{
|
|
return GetCrossingRoadAxis(tile) == AXIS_X ? TRACK_BIT_Y : TRACK_BIT_X;
|
|
}
|
|
|
|
|
|
// TODO swap owner of road and rail
|
|
static inline Owner GetCrossingRoadOwner(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_CROSSING);
|
|
return (Owner)_m[t].m3;
|
|
}
|
|
|
|
static inline void SetCrossingRoadOwner(TileIndex t, Owner o)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_CROSSING);
|
|
_m[t].m3 = o;
|
|
}
|
|
|
|
static inline void UnbarCrossing(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_CROSSING);
|
|
CLRBIT(_m[t].m5, 2);
|
|
}
|
|
|
|
static inline void BarCrossing(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_CROSSING);
|
|
SETBIT(_m[t].m5, 2);
|
|
}
|
|
|
|
static inline bool IsCrossingBarred(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_CROSSING);
|
|
return HASBIT(_m[t].m5, 2);
|
|
}
|
|
|
|
|
|
static inline DiagDirection GetRoadDepotDirection(TileIndex t)
|
|
{
|
|
assert(GetRoadType(t) == ROAD_DEPOT);
|
|
return (DiagDirection)GB(_m[t].m5, 0, 2);
|
|
}
|
|
|
|
|
|
/**
|
|
* Returns the RoadBits on an arbitrary tile
|
|
* Special behavior:
|
|
* - road depots: entrance is treated as road piece
|
|
* - road tunnels: entrance is treated as road piece
|
|
* - bridge ramps: start of the ramp is treated as road piece
|
|
* - bridge middle parts: bridge itself is ignored
|
|
*/
|
|
RoadBits GetAnyRoadBits(TileIndex);
|
|
|
|
|
|
TrackBits GetAnyRoadTrackBits(TileIndex tile);
|
|
|
|
|
|
static inline void MakeRoadNormal(TileIndex t, Owner owner, RoadBits bits, uint town)
|
|
{
|
|
SetTileType(t, MP_STREET);
|
|
SetTileOwner(t, owner);
|
|
_m[t].m2 = town;
|
|
_m[t].m3 = 0;
|
|
_m[t].m4 = 0 << 7 | 0 << 4 | 0;
|
|
_m[t].m5 = ROAD_NORMAL << 4 | bits;
|
|
}
|
|
|
|
|
|
static inline void MakeRoadCrossing(TileIndex t, Owner road, Owner rail, Axis roaddir, RailType rt, uint town)
|
|
{
|
|
SetTileType(t, MP_STREET);
|
|
SetTileOwner(t, rail);
|
|
_m[t].m2 = town;
|
|
_m[t].m3 = road;
|
|
_m[t].m4 = 0 << 7 | 0 << 4 | rt;
|
|
_m[t].m5 = ROAD_CROSSING << 4 | roaddir << 3 | 0 << 2;
|
|
}
|
|
|
|
|
|
static inline void MakeRoadDepot(TileIndex t, Owner owner, DiagDirection dir)
|
|
{
|
|
SetTileType(t, MP_STREET);
|
|
SetTileOwner(t, owner);
|
|
_m[t].m2 = 0;
|
|
_m[t].m3 = 0;
|
|
_m[t].m4 = 0;
|
|
_m[t].m5 = ROAD_DEPOT << 4 | dir;
|
|
}
|
|
|
|
#endif
|