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Location: cpp/openttd-patchpack/source/depot.h - annotation
r2841:b4a60d909d86
4.1 KiB
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(svn r3389) -Fix: No fence was placed when placing fences and the neighbouring tile is a rail configuration which permits a fence but has a signal
(Per request of peter1138 the above line does not contain any commas)
(Per request of peter1138 the above line does not contain any commas)
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#ifndef DEPOT_H
#define DEPOT_H
/** @file depot.h Header files for depots (not hangars)
* @see depot.c */
#include "pool.h"
#include "tile.h"
#include "variables.h"
struct Depot {
TileIndex xy;
uint16 town_index;
uint16 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);
}
VARDEF TileIndex _last_built_train_depot_tile;
VARDEF TileIndex _last_built_road_depot_tile;
VARDEF TileIndex _last_built_aircraft_depot_tile;
VARDEF TileIndex _last_built_ship_depot_tile;
/**
* 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:
case TRANSPORT_ROAD:
/* Rail and road store a diagonal direction in bits 0 and 1 */
return (DiagDirection)GB(_m[tile].m5, 0, 2);
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, uint tileh)
{
return (0x4C >> direction) & tileh;
}
Depot *GetDepotByTile(TileIndex tile);
void InitializeDepot(void);
Depot *AllocateDepot(void);
void DoDeleteDepot(TileIndex tile);
#endif /* DEPOT_H */
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