(svn r11940) -Codechange: Store short filename once per open file instead of once per sprite cache entry. Not all file types need this, but most of the time no sprite cache entry needed it either.
/* $Id$ */
/** @file water_map.h */
#ifndef WATER_MAP_H
#define WATER_MAP_H
enum WaterTileType {
WATER_TILE_CLEAR,
WATER_TILE_COAST,
WATER_TILE_LOCK,
WATER_TILE_DEPOT,
WATER_TILE_RIVER,
};
enum DepotPart {
DEPOT_NORTH = 0x80,
DEPOT_SOUTH = 0x81,
DEPOT_END = 0x84,
};
enum LockPart {
LOCK_MIDDLE = 0x10,
LOCK_LOWER = 0x14,
LOCK_UPPER = 0x18,
LOCK_END = 0x1C
};
static inline WaterTileType GetWaterTileType(TileIndex t)
{
assert(IsTileType(t, MP_WATER));
if (_m[t].m5 == 0) return WATER_TILE_CLEAR;
if (_m[t].m5 == 1) return WATER_TILE_COAST;
if (_m[t].m5 == 2) return WATER_TILE_RIVER;
if (IsInsideMM(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;
assert(IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END));
return WATER_TILE_DEPOT;
}
/** IsWater return true if any type of clear water like ocean, river, canal */
static inline bool IsWater(TileIndex t)
{
return GetWaterTileType(t) == WATER_TILE_CLEAR;
}
static inline bool IsSea(TileIndex t)
{
if (GetWaterTileType(t) != WATER_TILE_CLEAR) return false;
if (!IsTileOwner(t, OWNER_WATER)) return false; // 'Human' built water = canal, not sea
return true;
}
static inline bool IsCoast(TileIndex t)
{
return GetWaterTileType(t) == WATER_TILE_COAST;
}
static inline bool IsCanal(TileIndex t)
{
return GetWaterTileType(t) == WATER_TILE_CLEAR && GetTileOwner(t) != OWNER_WATER;
}
static inline bool IsRiver(TileIndex t)
{
return GetWaterTileType(t) == WATER_TILE_RIVER;
}
static inline bool IsWaterTile(TileIndex t)
{
return IsTileType(t, MP_WATER) && IsWater(t);
}
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 IsInsideMM(_m[t].m5, DEPOT_NORTH, DEPOT_END);
}
static inline Axis GetShipDepotAxis(TileIndex t)
{
return (Axis)GB(_m[t].m5, 1, 1);
}
static inline DiagDirection GetShipDepotDirection(TileIndex t)
{
return XYNSToDiagDir(GetShipDepotAxis(t), GB(_m[t].m5, 0, 1));
}
static inline Owner GetShipDepotWaterOwner(TileIndex t)
{
return (Owner)_m[t].m4;
}
static inline DiagDirection GetLockDirection(TileIndex t)
{
return (DiagDirection)GB(_m[t].m5, 0, 2);
}
static inline byte GetSection(TileIndex t)
{
assert(GetWaterTileType(t) == WATER_TILE_LOCK || GetWaterTileType(t) == WATER_TILE_DEPOT);
return GB(_m[t].m5, 0, 4);
}
static inline byte GetWaterTileRandomBits(TileIndex t)
{
return _m[t].m4;
}
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 MakeRiver(TileIndex t, uint8 random_bits)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, OWNER_WATER);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = random_bits;
_m[t].m5 = 2;
}
static inline void MakeCanal(TileIndex t, Owner o, uint8 random_bits)
{
assert(o != OWNER_WATER);
SetTileType(t, MP_WATER);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = random_bits;
_m[t].m5 = 0;
}
static inline void MakeShipDepot(TileIndex t, Owner o, DepotPart base, Axis a, Owner original_owner)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = original_owner;
_m[t].m5 = base + a * 2;
}
static inline void MakeLockTile(TileIndex t, Owner o, byte section)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = section;
}
static inline void MakeLock(TileIndex t, Owner o, DiagDirection d)
{
TileIndexDiff delta = TileOffsByDiagDir(d);
MakeLockTile(t, o, LOCK_MIDDLE + d);
MakeLockTile(t - delta, o, LOCK_LOWER + d);
MakeLockTile(t + delta, o, LOCK_UPPER + d);
}
#endif /* WATER_MAP_H */