OpenTTD-patches/water_map.h

92 lines
1.7 KiB
C

/* $Id$ */
#ifndef WATER_MAP_H
#define WATER_MAP_H
typedef enum DepotPart {
DEPOT_NORTH = 0x80,
DEPOT_SOUTH = 0x81,
DEPOT_END = 0x84,
} DepotPart;
typedef enum LockPart {
LOCK_MIDDLE = 0x10,
LOCK_LOWER = 0x14,
LOCK_UPPER = 0x18
} LockPart;
static inline bool IsClearWaterTile(TileIndex tile)
{
return
IsTileType(tile, MP_WATER) &&
_m[tile].m5 == 0 &&
GetTileSlope(tile, NULL) == 0;
}
static inline TileIndex GetOtherShipDepotTile(TileIndex t)
{
return t + (HASBIT(_m[t].m5, 0) ? -1 : 1) * (HASBIT(_m[t].m5, 1) ? TileDiffXY(0, 1) : TileDiffXY(1, 0));
}
static inline TileIndex IsShipDepot(TileIndex t)
{
return IS_INT_INSIDE(_m[t].m5, DEPOT_NORTH, DEPOT_END);
}
static inline DiagDirection GetLockDirection(TileIndex t)
{
return (DiagDirection)GB(_m[t].m5, 0, 2);
}
static inline void MakeWater(TileIndex t)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, OWNER_WATER);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = 0;
}
static inline void MakeShore(TileIndex t)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, OWNER_WATER);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = 1;
}
static inline void MakeShipDepot(TileIndex t, Owner o, DepotPart base, Axis a)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = base + a * 2;
}
static inline void MakeLockTile(TileIndex t, byte section)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, OWNER_WATER);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = section;
}
static inline void MakeLock(TileIndex t, DiagDirection d)
{
TileIndexDiff delta = TileOffsByDir(d);
MakeLockTile(t, LOCK_MIDDLE + d);
MakeLockTile(t - delta, LOCK_LOWER + d);
MakeLockTile(t + delta, LOCK_UPPER + d);
}
#endif