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/* $Id$ */

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/** @file depot.cpp */

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#include "stdafx.h"

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#include "openttd.h"

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#include "depot.h"

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#include "landscape.h"

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#include "saveload.h"

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#include "order.h"

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DEFINE_OLD_POOL_GENERIC(Depot, Depot)

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/**

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 * Gets a depot from a tile

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 *

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 * @return Returns the depot if the tile had a depot, else it returns NULL

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 */

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Depot *GetDepotByTile(TileIndex tile)

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{

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	Depot *depot;

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	FOR_ALL_DEPOTS(depot) {

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		if (depot->xy == tile) return depot;

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	}

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	return NULL;

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}

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/**

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 * Clean up a depot

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 */

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Depot::~Depot()

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{

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	if (CleaningPool()) return;

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	/* Clear the depot from all order-lists */

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	RemoveOrderFromAllVehicles(OT_GOTO_DEPOT, this->index);

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	/* Delete the depot-window */

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	DeleteWindowById(WC_VEHICLE_DEPOT, this->xy);

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	this->xy = 0;

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}

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void InitializeDepots()

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{

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	_Depot_pool.CleanPool();

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	_Depot_pool.AddBlockToPool();

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}

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static const SaveLoad _depot_desc[] = {

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	SLE_CONDVAR(Depot, xy,         SLE_FILE_U16 | SLE_VAR_U32, 0, 5),

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	SLE_CONDVAR(Depot, xy,         SLE_UINT32,                 6, SL_MAX_VERSION),

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	    SLE_VAR(Depot, town_index, SLE_UINT16),

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	SLE_END()

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};

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static void Save_DEPT()

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{

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	Depot *depot;

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	FOR_ALL_DEPOTS(depot) {

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		SlSetArrayIndex(depot->index);

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		SlObject(depot, _depot_desc);

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	}

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}

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static void Load_DEPT()

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{

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	int index;

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	while ((index = SlIterateArray()) != -1) {

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		Depot *depot = new (index) Depot();

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		SlObject(depot, _depot_desc);

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	}

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}

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extern const ChunkHandler _depot_chunk_handlers[] = {

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	{ 'DEPT', Save_DEPT, Load_DEPT, CH_ARRAY | CH_LAST},

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};