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Location: cpp/openttd-patchpack/source/src/water_map.h
r7582:dfefb1216e6f
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(svn r11107) -Feature: some tool so one can still build tunnels under rails (and other structures) when the owner of the structure built it on foundations and if you have enough "empty" space ofcourse. One could use the tool for some other construction needs too. Patch by frosch.
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/** @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,
};
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)
{
if (_m[t].m5 == 0) return WATER_TILE_CLEAR;
if (_m[t].m5 == 1) return WATER_TILE_COAST;
if (IS_INT_INSIDE(_m[t].m5, LOCK_MIDDLE, LOCK_END)) return WATER_TILE_LOCK;
assert(IS_INT_INSIDE(_m[t].m5, DEPOT_NORTH, DEPOT_END));
return WATER_TILE_DEPOT;
}
static inline bool IsWater(TileIndex t)
{
return GetWaterTileType(t) == WATER_TILE_CLEAR;
}
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 IsClearWaterTile(TileIndex t)
{
return IsTileType(t, MP_WATER) && IsWater(t) && GetTileSlope(t, NULL) == SLOPE_FLAT;
}
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 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 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 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 MakeCanal(TileIndex t, Owner o)
{
SetTileType(t, MP_WATER);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = 0;
}
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, 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 */
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