Files @ r3303:1bae0f5399a4
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Location: cpp/openttd-patchpack/source/road_map.h

bjarni
(svn r4060) -Codechange: [OSX] made the release target (in os/macosx/Makefile) easier to use since it gives the release disk image the right name automatically
it now uses REV instead of RELEASE, which means RELEASE is not needed to be set manaully anymore
it also automatically adds "-jaguar" when making a build aimed at OSX 10.2 (codenamed jaguar)
/* $Id$ */

#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);
}


static inline RoadBits GetRoadBits(TileIndex tile)
{
	return GB(_m[tile].m5, 0, 4);
}

static inline void SetRoadBits(TileIndex tile, RoadBits r)
{
	SB(_m[tile].m5, 0, 4, r);
}


static inline Axis GetCrossingRoadAxis(TileIndex tile)
{
	return (Axis)GB(_m[tile].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)
{
	return (Owner)_m[t].m3;
}

static inline void SetCrossingRoadOwner(TileIndex t, Owner o)
{
	_m[t].m3 = o;
}


typedef enum RoadType {
	ROAD_NORMAL,
	ROAD_CROSSING,
	ROAD_DEPOT
} RoadType;

static inline RoadType GetRoadType(TileIndex tile)
{
	return GB(_m[tile].m5, 4, 4);
}


static inline DiagDirection GetRoadDepotDirection(TileIndex tile)
{
	return (DiagDirection)GB(_m[tile].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