c5c5c9b17c
- Add: asserts to find the v->u.rail.track == 0 problem. - Add: IsValidDepot(), IsValidTown(), IsValidSign(), IsValidVehicle(), IsValidStation() - Add: GetTileOwner(), IsTileOwner() - Codechange: Replaced IsShipDepotTile(), IsTrainDepotTile(), IsRoadDepotTile() by IsTileDepotType(). - Codechange: typedeffed the MAP_OWNERS as Owner. Should be used as variable type. - Codechange: Replaced a few uint by TileIndex.
120 lines
3.4 KiB
C
120 lines
3.4 KiB
C
#ifndef MAP_H
|
|
#define MAP_H
|
|
|
|
#include "stdafx.h"
|
|
|
|
#define TILE_FROM_XY(x,y) (int)((((y) >> 4) << MapLogX()) + ((x) >> 4))
|
|
#define TILE_XY(x,y) (((y) << MapLogX()) + (x))
|
|
|
|
#define TILE_MASK(x) ((x) & ((1 << (MapLogX() + MapLogY())) - 1))
|
|
|
|
extern byte *_map_type_and_height;
|
|
extern byte *_map_owner;
|
|
extern uint16 *_map2;
|
|
extern byte *_map3_lo;
|
|
extern byte *_map3_hi;
|
|
extern byte *_map5;
|
|
extern byte *_map_extra_bits;
|
|
|
|
void InitMap(uint log_x, uint log_y);
|
|
|
|
// binary logarithm of the map size, try to avoid using this one
|
|
static inline uint MapLogX(void) { extern uint _map_log_x; return _map_log_x; }
|
|
static inline uint MapLogY(void) { extern uint _map_log_y; return _map_log_y; }
|
|
/* The size of the map */
|
|
static inline uint MapSizeX(void) { return 1 << MapLogX(); }
|
|
static inline uint MapSizeY(void) { return 1 << MapLogY(); }
|
|
/* The maximum coordinates */
|
|
static inline uint MapMaxX(void) { return MapSizeX() - 1; }
|
|
static inline uint MapMaxY(void) { return MapSizeY() - 1; }
|
|
/* The number of tiles in the map */
|
|
static inline uint MapSize(void) { return MapSizeX() * MapSizeY(); }
|
|
|
|
// Scale a number relative to the map size
|
|
uint ScaleByMapSize(uint); // Scale relative to the number of tiles
|
|
uint ScaleByMapSize1D(uint); // Scale relative to the circumference of the map
|
|
|
|
typedef uint32 TileIndex;
|
|
|
|
typedef enum {
|
|
OWNER_TOWN = 0xf, // a town owns the tile
|
|
OWNER_NONE = 0x10, // nobody owns the tile
|
|
OWNER_WATER = 0x11, // "water" owns the tile
|
|
OWNER_SPECTATOR = 0xff, // spectator in MP or in scenario editor
|
|
} Owner;
|
|
|
|
enum {
|
|
INVALID_TILE = (uint32) -1
|
|
};
|
|
|
|
static inline uint TileX(TileIndex tile)
|
|
{
|
|
return tile & MapMaxX();
|
|
}
|
|
|
|
static inline uint TileY(TileIndex tile)
|
|
{
|
|
return tile >> MapLogX();
|
|
}
|
|
|
|
|
|
typedef int32 TileIndexDiff;
|
|
|
|
typedef struct TileIndexDiffC {
|
|
int16 x;
|
|
int16 y;
|
|
} TileIndexDiffC;
|
|
|
|
static inline TileIndexDiff ToTileIndexDiff(TileIndexDiffC tidc)
|
|
{
|
|
return (tidc.y << MapLogX()) + tidc.x;
|
|
}
|
|
|
|
|
|
#ifndef _DEBUG
|
|
#define TILE_ADD(x,y) ((x) + (y))
|
|
#else
|
|
extern TileIndex TileAdd(TileIndex tile, TileIndexDiff add,
|
|
const char *exp, const char *file, int line);
|
|
#define TILE_ADD(x, y) (TileAdd((x), (y), #x " + " #y, __FILE__, __LINE__))
|
|
#endif
|
|
|
|
#define TILE_ADDXY(tile, x, y) TILE_ADD(tile, TILE_XY(x, y))
|
|
|
|
uint TileAddWrap(TileIndex tile, int addx, int addy);
|
|
|
|
static inline TileIndexDiffC TileIndexDiffCByDir(uint dir) {
|
|
extern const TileIndexDiffC _tileoffs_by_dir[4];
|
|
return _tileoffs_by_dir[dir];
|
|
}
|
|
|
|
/* Returns tile + the diff given in diff. If the result tile would end up
|
|
* outside of the map, INVALID_TILE is returned instead.
|
|
*/
|
|
static inline TileIndex AddTileIndexDiffCWrap(TileIndex tile, TileIndexDiffC diff) {
|
|
int x = TileX(tile) + diff.x;
|
|
int y = TileY(tile) + diff.y;
|
|
if (x < 0 || y < 0 || x > (int)MapMaxX() || y > (int)MapMaxY())
|
|
return INVALID_TILE;
|
|
else
|
|
return TILE_XY(x, y);
|
|
}
|
|
|
|
// Functions to calculate distances
|
|
uint DistanceManhattan(TileIndex, TileIndex); // also known as L1-Norm
|
|
uint DistanceSquare(TileIndex, TileIndex); // euclidian- or L2-Norm squared
|
|
uint DistanceMax(TileIndex, TileIndex); // also known as L-Infinity-Norm
|
|
uint DistanceMaxPlusManhattan(TileIndex, TileIndex); // Max + Manhattan
|
|
uint DistanceFromEdge(TileIndex); // shortest distance from any edge of the map
|
|
|
|
|
|
static inline TileIndexDiff TileOffsByDir(uint dir)
|
|
{
|
|
extern const TileIndexDiffC _tileoffs_by_dir[4];
|
|
|
|
assert(dir < lengthof(_tileoffs_by_dir));
|
|
return ToTileIndexDiff(_tileoffs_by_dir[dir]);
|
|
}
|
|
|
|
#endif
|