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/* $Id$ */
/** @file town_map.h Accessors for towns */
#ifndef TOWN_MAP_H
#define TOWN_MAP_H
#include "town.h"
static inline TownID GetTownIndex(TileIndex t)
{
assert(IsTileType(t, MP_HOUSE) || IsTileType(t, MP_STREET)); // XXX incomplete
return _m[t].m2;
}
/**
* Set the town index for a road or house tile.
* @param tile the tile
* @param index the index of the town
* @pre IsTileType(t, MP_STREET) || IsTileType(t, MP_HOUSE)
*/
static inline void SetTownIndex(TileIndex t, TownID index)
{
assert(IsTileType(t, MP_STREET) || IsTileType(t, MP_HOUSE));
_m[t].m2 = index;
}
/**
* Gets the town associated with the house or road tile
* @param t the tile to get the town of
* @return the town
*/
static inline Town* GetTownByTile(TileIndex t)
{
return GetTown(GetTownIndex(t));
}
static inline int GetHouseType(TileIndex t)
{
assert(IsTileType(t, MP_HOUSE));
return _m[t].m4;
}
static inline bool LiftHasDestination(TileIndex t)
{
return HASBIT(_m[t].m5, 7);
}
static inline void SetLiftDestination(TileIndex t, byte dest)
{
SB(_m[t].m5, 0, 6, dest);
SETBIT(_m[t].m1, 7); /* Start moving */
}
static inline byte GetLiftDestination(TileIndex t)
{
return GB(_m[t].m5, 0, 6);
}
static inline bool IsLiftMoving(TileIndex t)
{
return HASBIT(_m[t].m1, 7);
}
static inline void BeginLiftMovement(TileIndex t)
{
SETBIT(_m[t].m5, 7);
}
static inline void HaltLift(TileIndex t)
{
CLRBIT(_m[t].m1, 7);
CLRBIT(_m[t].m5, 7);
SB(_m[t].m5, 0, 6, 0);
DeleteAnimatedTile(t);
}
static inline byte GetLiftPosition(TileIndex t)
{
return GB(_m[t].m1, 0, 7);
}
static inline void SetLiftPosition(TileIndex t, byte pos)
{
SB(_m[t].m1, 0, 7, pos);
}
static inline void MakeHouseTile(TileIndex t, TownID tid, byte counter, byte stage, byte type)
{
assert(IsTileType(t, MP_CLEAR));
SetTileType(t, MP_HOUSE);
_m[t].m1 = 0;
_m[t].m2 = tid;
SB(_m[t].m3, 6, 2, stage);
_m[t].m4 = type;
SB(_m[t].m5, 0, 2, counter);
MarkTileDirtyByTile(t);
}
enum {
TWO_BY_TWO_BIT = 2, ///< House is two tiles in X and Y directions
ONE_BY_TWO_BIT = 1, ///< House is two tiles in Y direction
TWO_BY_ONE_BIT = 0, ///< House is two tiles in X direction
};
static inline void MakeTownHouse(TileIndex t, TownID tid, byte counter, byte stage, byte size, byte type)
{
MakeHouseTile(t, tid, counter, stage, type);
if (HASBIT(size, TWO_BY_TWO_BIT) || HASBIT(size, ONE_BY_TWO_BIT)) MakeHouseTile(t + TileDiffXY(0, 1), tid, counter, stage, ++type);
if (HASBIT(size, TWO_BY_TWO_BIT) || HASBIT(size, TWO_BY_ONE_BIT)) MakeHouseTile(t + TileDiffXY(1, 0), tid, counter, stage, ++type);
if (HASBIT(size, TWO_BY_TWO_BIT)) MakeHouseTile(t + TileDiffXY(1, 1), tid, counter, stage, ++type);
}
/**
* House Construction Scheme.
* Construction counter, for buildings under construction. Incremented on every
* periodic tile processing.
* On wraparound, the stage of building in is increased.
* (Get|Set|Inc)HouseBuildingStage are taking care of the real stages,
* (as the sprite for the next phase of house building)
* (Get|Set|Inc)HouseConstructionTick is simply a tick counter between the
* different stages
*/
/**
* Gets the building stage of a house
* @param tile the tile of the house to get the building stage of
* @pre IsTileType(t, MP_HOUSE)
* @return the building stage of the house
*/
static inline byte GetHouseBuildingStage(TileIndex t)
{
assert(IsTileType(t, MP_HOUSE));
return GB(_m[t].m3, 6, 2);
}
/**
* Sets the building stage of a house
* @param tile the tile of the house to set the building stage of
* @param stage the new stage
* @pre IsTileType(t, MP_HOUSE)
*/
static inline void SetHouseBuildingStage(TileIndex t, byte stage)
{
assert(IsTileType(t, MP_HOUSE));
SB(_m[t].m3, 6, 2, stage);
}
/**
* Increments the building stage of a house
* @param tile the tile of the house to increment the building stage of
* @pre IsTileType(t, MP_HOUSE)
*/
static inline void IncHouseBuildingStage( TileIndex t )
{
assert(IsTileType(t, MP_HOUSE));
AB(_m[t].m3, 6, 2, 1);
}
/**
* Gets the construction stage of a house
* @param tile the tile of the house to get the construction stage of
* @pre IsTileType(t, MP_HOUSE)
* @return the construction stage of the house
*/
static inline byte GetHouseConstructionTick(TileIndex t)
{
assert(IsTileType(t, MP_HOUSE));
return GB(_m[t].m5, 0, 3);
}
/**
* Sets the construction stage of a house
* @param tile the tile of the house to set the construction stage of
* @param stage the new stage
* @pre IsTileType(t, MP_HOUSE)
*/
static inline void SetHouseConstructionTick(TileIndex t, byte stage)
{
assert(IsTileType(t, MP_HOUSE));
SB(_m[t].m5, 0, 3, stage);
}
/**
* Sets the increment stage of a house
* @param tile the tile of the house to increment the construction stage of
* @pre IsTileType(t, MP_HOUSE)
*/
static inline void IncHouseConstructionTick(TileIndex t)
{
assert(IsTileType(t, MP_HOUSE));
AB(_m[t].m5, 0, 3, 1);
}
#endif /* TOWN_MAP_H */
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