mirror of
https://github.com/JGRennison/OpenTTD-patches.git
synced 2024-11-04 06:00:15 +00:00
146 lines
3.9 KiB
C
146 lines
3.9 KiB
C
/* $Id$ */
|
|
|
|
#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 "rail_map.h"
|
|
#include "road_map.h"
|
|
#include "tile.h"
|
|
#include "variables.h"
|
|
|
|
struct Depot {
|
|
TileIndex xy;
|
|
TownID town_index;
|
|
StationID index;
|
|
};
|
|
|
|
extern MemoryPool _depot_pool;
|
|
|
|
/**
|
|
* Get the pointer to the depot with index 'index'
|
|
*/
|
|
static inline Depot *GetDepot(uint index)
|
|
{
|
|
return (Depot*)GetItemFromPool(&_depot_pool, index);
|
|
}
|
|
|
|
/**
|
|
* Get the current size of the DepotPool
|
|
*/
|
|
static inline uint16 GetDepotPoolSize(void)
|
|
{
|
|
return _depot_pool.total_items;
|
|
}
|
|
|
|
static inline bool IsDepotIndex(uint index)
|
|
{
|
|
return index < GetDepotPoolSize();
|
|
}
|
|
|
|
#define FOR_ALL_DEPOTS_FROM(d, start) for (d = GetDepot(start); d != NULL; d = (d->index + 1 < GetDepotPoolSize()) ? GetDepot(d->index + 1) : NULL)
|
|
#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 uint16 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 depot really exists.
|
|
*/
|
|
static inline bool IsValidDepot(const Depot* depot)
|
|
{
|
|
return depot->xy != 0; /* XXX: Replace by INVALID_TILE someday */
|
|
}
|
|
|
|
/**
|
|
* 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;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the direction the exit of the depot on the given tile is facing.
|
|
*/
|
|
static inline DiagDirection GetDepotDirection(TileIndex tile, TransportType type)
|
|
{
|
|
assert(IsTileDepotType(tile, type));
|
|
|
|
switch (type)
|
|
{
|
|
case TRANSPORT_RAIL: return GetRailDepotDirection(tile);
|
|
case TRANSPORT_ROAD: return GetRoadDepotDirection(tile);
|
|
case TRANSPORT_WATER:
|
|
/* Water is stubborn, it stores the directions in a different order. */
|
|
switch (GB(_m[tile].m5, 0, 2)) {
|
|
case 0: return DIAGDIR_NE;
|
|
case 1: return DIAGDIR_SW;
|
|
case 2: return DIAGDIR_NW;
|
|
case 3: return DIAGDIR_SE;
|
|
}
|
|
default:
|
|
return INVALID_DIAGDIR; /* Not reached */
|
|
}
|
|
}
|
|
|
|
/**
|
|
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 >> p2) & 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 InitializeDepot(void);
|
|
Depot *AllocateDepot(void);
|
|
void DoDeleteDepot(TileIndex tile);
|
|
|
|
#endif /* DEPOT_H */
|