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Location: cpp/openttd-patchpack/source/src/depot.cpp
r7377:722cd70012ed
2.6 KiB
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(svn r10746) -Codechange: add a generic superclass for almost all pool items so we do not have to duplicate code for each of the pool item classes and use it for the station and roadstop classes.
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/** @file depot.cpp */
#include "stdafx.h"
#include "openttd.h"
#include "vehicle.h"
#include "depot.h"
#include "functions.h"
#include "landscape.h"
#include "tile.h"
#include "map.h"
#include "table/strings.h"
#include "saveload.h"
#include "order.h"
/**
* Called if a new block is added to the depot-pool
*/
static void DepotPoolNewBlock(uint start_item)
{
Depot *d;
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
* TODO - This is just a temporary stage, this will be removed. */
for (d = GetDepot(start_item); d != NULL; d = (d->index + 1U < GetDepotPoolSize()) ? GetDepot(d->index + 1U) : NULL) d->index = start_item++;
}
DEFINE_OLD_POOL(Depot, Depot, DepotPoolNewBlock, NULL)
/**
* Gets a depot from a tile
*
* @return Returns the depot if the tile had a depot, else it returns NULL
*/
Depot *GetDepotByTile(TileIndex tile)
{
Depot *depot;
FOR_ALL_DEPOTS(depot) {
if (depot->xy == tile) return depot;
}
return NULL;
}
/**
* Allocate a new depot
*/
Depot *AllocateDepot()
{
Depot *d;
/* We don't use FOR_ALL here, because FOR_ALL skips invalid items.
* TODO - This is just a temporary stage, this will be removed. */
for (d = GetDepot(0); d != NULL; d = (d->index + 1U < GetDepotPoolSize()) ? GetDepot(d->index + 1U) : NULL) {
if (!IsValidDepot(d)) {
DepotID index = d->index;
memset(d, 0, sizeof(Depot));
d->index = index;
return d;
}
}
/* Check if we can add a block to the pool */
if (AddBlockToPool(&_Depot_pool)) return AllocateDepot();
return NULL;
}
/**
* Clean up a depot
*/
void DestroyDepot(Depot *depot)
{
/* Clear the tile */
DoClearSquare(depot->xy);
/* Clear the depot from all order-lists */
RemoveOrderFromAllVehicles(OT_GOTO_DEPOT, depot->index);
/* Delete the depot-window */
DeleteWindowById(WC_VEHICLE_DEPOT, depot->xy);
}
void InitializeDepots()
{
CleanPool(&_Depot_pool);
AddBlockToPool(&_Depot_pool);
}
static const SaveLoad _depot_desc[] = {
SLE_CONDVAR(Depot, xy, SLE_FILE_U16 | SLE_VAR_U32, 0, 5),
SLE_CONDVAR(Depot, xy, SLE_UINT32, 6, SL_MAX_VERSION),
SLE_VAR(Depot, town_index, SLE_UINT16),
SLE_END()
};
static void Save_DEPT()
{
Depot *depot;
FOR_ALL_DEPOTS(depot) {
SlSetArrayIndex(depot->index);
SlObject(depot, _depot_desc);
}
}
static void Load_DEPT()
{
int index;
while ((index = SlIterateArray()) != -1) {
Depot *depot;
if (!AddBlockIfNeeded(&_Depot_pool, index))
error("Depots: failed loading savegame: too many depots");
depot = GetDepot(index);
SlObject(depot, _depot_desc);
}
}
extern const ChunkHandler _depot_chunk_handlers[] = {
{ 'DEPT', Save_DEPT, Load_DEPT, CH_ARRAY | CH_LAST},
};
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