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/* $Id$ */
typedef enum UnmovableType {
UNMOVABLE_TRANSMITTER = 0,
UNMOVABLE_LIGHTHOUSE = 1,
UNMOVABLE_STATUE = 2,
UNMOVABLE_OWNED_LAND = 3,
UNMOVABLE_HQ_NORTH = 0x80,
UNMOVABLE_HQ_WEST = 0x81,
UNMOVABLE_HQ_EAST = 0x82,
UNMOVABLE_HQ_SOUTH = 0x83,
} UnmovableType;
static inline UnmovableType GetUnmovableType(TileIndex t)
{
assert(IsTileType(t, MP_UNMOVABLE));
return _m[t].m5;
}
static inline bool IsTransmitterTile(TileIndex t)
{
return
IsTileType(t, MP_UNMOVABLE) &&
GetUnmovableType(t) == UNMOVABLE_TRANSMITTER;
}
static inline bool IsOwnedLand(TileIndex t)
{
assert(IsTileType(t, MP_UNMOVABLE));
return GetUnmovableType(t) == UNMOVABLE_OWNED_LAND;
}
static inline bool IsOwnedLandTile(TileIndex t)
{
return IsTileType(t, MP_UNMOVABLE) && IsOwnedLand(t);
}
static inline void EnlargeCompanyHQ(TileIndex t, byte size)
{
if (size <= _m[t].m5 - UNMOVABLE_HQ_NORTH) return;
_m[t + TileDiffXY(0, 0)].m5 = UNMOVABLE_HQ_NORTH + size * 4;
_m[t + TileDiffXY(0, 1)].m5 = UNMOVABLE_HQ_WEST + size * 4;
_m[t + TileDiffXY(1, 0)].m5 = UNMOVABLE_HQ_EAST + size * 4;
_m[t + TileDiffXY(1, 1)].m5 = UNMOVABLE_HQ_SOUTH + size * 4;
}
static inline void MakeUnmovable(TileIndex t, UnmovableType u, Owner o)
{
SetTileType(t, MP_UNMOVABLE);
SetTileOwner(t, o);
_m[t].m2 = 0;
_m[t].m3 = 0;
_m[t].m4 = 0;
_m[t].m5 = u;
}
static inline void MakeTransmitter(TileIndex t)
{
MakeUnmovable(t, UNMOVABLE_TRANSMITTER, OWNER_NONE);
}
static inline void MakeLighthouse(TileIndex t)
{
MakeUnmovable(t, UNMOVABLE_LIGHTHOUSE, OWNER_NONE);
}
static inline void MakeStatue(TileIndex t, Owner o)
{
MakeUnmovable(t, UNMOVABLE_STATUE, o);
}
static inline void MakeOwnedLand(TileIndex t, Owner o)
{
MakeUnmovable(t, UNMOVABLE_OWNED_LAND, o);
}
static inline void MakeCompanyHQ(TileIndex t, Owner o)
{
MakeUnmovable(t + TileDiffXY(0, 0), UNMOVABLE_HQ_NORTH, o);
MakeUnmovable(t + TileDiffXY(0, 1), UNMOVABLE_HQ_WEST, o);
MakeUnmovable(t + TileDiffXY(1, 0), UNMOVABLE_HQ_EAST, o);
MakeUnmovable(t + TileDiffXY(1, 1), UNMOVABLE_HQ_SOUTH, o);
}
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