/* $Id$ */ #ifndef DEPOT_H #define DEPOT_H /** @file depot.h Header files for depots (not hangars) * @see depot.c */ #include "direction.h" #include "pool.h" #include "tile.h" #include "variables.h" struct Depot { TileIndex xy; TownID town_index; DepotID index; }; DECLARE_POOL(Depot, Depot, 3, 8000) /** * Check if a depot really exists. */ static inline bool IsValidDepot(const Depot *depot) { return depot != NULL && depot->xy != 0; } static inline bool IsValidDepotID(uint index) { return index < GetDepotPoolSize() && IsValidDepot(GetDepot(index)); } void DestroyDepot(Depot *depot); static inline void DeleteDepot(Depot *depot) { DestroyDepot(depot); depot->xy = 0; } void ShowDepotWindow(TileIndex tile, byte type); #define FOR_ALL_DEPOTS_FROM(d, start) for (d = GetDepot(start); d != NULL; d = (d->index + 1U < GetDepotPoolSize()) ? GetDepot(d->index + 1U) : NULL) if (IsValidDepot(d)) #define FOR_ALL_DEPOTS(d) FOR_ALL_DEPOTS_FROM(d, 0) #define MIN_SERVINT_PERCENT 5 #define MAX_SERVINT_PERCENT 90 #define MIN_SERVINT_DAYS 30 #define MAX_SERVINT_DAYS 800 /** * Get the service interval domain. * Get the new proposed service interval for the vehicle is indeed, clamped * within the given bounds. @see MIN_SERVINT_PERCENT ,etc. * @param index proposed service interval */ static inline Date GetServiceIntervalClamped(uint index) { return (_patches.servint_ispercent) ? clamp(index, MIN_SERVINT_PERCENT, MAX_SERVINT_PERCENT) : clamp(index, MIN_SERVINT_DAYS, MAX_SERVINT_DAYS); } /** * Check if a tile is a depot of the given type. */ static inline bool IsTileDepotType(TileIndex tile, TransportType type) { switch (type) { case TRANSPORT_RAIL: return IsTileType(tile, MP_RAILWAY) && (_m[tile].m5 & 0xFC) == 0xC0; case TRANSPORT_ROAD: return IsTileType(tile, MP_STREET) && (_m[tile].m5 & 0xF0) == 0x20; case TRANSPORT_WATER: return IsTileType(tile, MP_WATER) && (_m[tile].m5 & ~3) == 0x80; default: assert(0); return false; } } /** * Find out if the slope of the tile is suitable to build a depot of given direction * @param direction The direction in which the depot's exit points. Starts with 0 as NE and goes Clockwise * @param tileh The slope of the tile in question * @return true if the construction is possible * This is checked by the ugly 0x4C >> direction magic, which does the following: * 0x4C is 0100 1100 and tileh has only bits 0..3 set (steep tiles are ruled out) * So: for direction (only the significant bits are shown)<p> * 00 (exit towards NE) we need either bit 2 or 3 set in tileh: 0x4C >> 0 = 1100<p> * 01 (exit towards SE) we need either bit 1 or 2 set in tileh: 0x4C >> 1 = 0110<p> * 02 (exit towards SW) we need either bit 0 or 1 set in tileh: 0x4C >> 2 = 0011<p> * 03 (exit towards NW) we need either bit 0 or 4 set in tileh: 0x4C >> 3 = 1001<p> * So ((0x4C >> direction) & tileh) determines whether the depot can be built on the current tileh */ static inline bool CanBuildDepotByTileh(uint32 direction, Slope tileh) { return ((0x4C >> direction) & tileh) != 0; } Depot *GetDepotByTile(TileIndex tile); void InitializeDepots(void); Depot *AllocateDepot(void); #endif /* DEPOT_H */