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/*
* The Mana Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2012 The Mana Developers
*
* This file is part of The Mana Client.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INVENTORY_H
#define INVENTORY_H
#include <list>
class Inventory;
class Item;
class InventoryListener
{
public:
virtual ~InventoryListener() {}
virtual void slotsChanged(Inventory* inventory) = 0;
protected:
InventoryListener() {}
};
class Inventory
{
public:
static const int NO_SLOT_INDEX = -1; /**< Slot has no index. */
enum Type {
INVENTORY,
STORAGE,
TRADE,
TYPE_END
};
/**
* Constructor.
*
* @param size the number of items that fit in the inventory
*/
Inventory(Type type, int size = -1);
~Inventory();
/**
* Returns the size that this instance is configured for.
*/
int getSize() const { return mSize; }
/**
* Returns the item at the specified index.
*/
Item *getItem(int index) const;
/**
* Searches for the specified item by it's id.
*
* @param itemId The id of the item to be searched.
* @return Item found on success, NULL on failure.
*/
Item *findItem(int itemId) const;
/**
* Adds a new item in a free slot.
*/
void addItem(int id, int quantity);
/**
* Sets the item at the given position.
*/
void setItem(int index, int id, int quantity);
/**
* Remove a item from the inventory.
*/
void removeItem(int id);
/**
* Remove the item at the specified index from the inventory.
*/
void removeItemAt(int index);
/**
* Checks if the given item is in the inventory.
*/
bool contains(Item *item) const;
/**
* Returns id of next free slot or -1 if all occupied.
*/
int getFreeSlot() const;
/**
* Reset all item slots.
*/
void clear();
/**
* Get the number of slots filled with an item
*/
int getNumberOfSlotsUsed() const
{ return mUsed; }
/**
* Returns the index of the last occupied slot or 0 if none occupied.
*/
int getLastUsedSlot() const;
void addInventoryListener(InventoryListener* listener);
void removeInventoryListener(InventoryListener* listener);
int getType() const
{ return mType; }
bool isMainInventory() const
{ return mType == INVENTORY; }
protected:
using InventoryListenerList = std::list<InventoryListener *>;
InventoryListenerList mInventoryListeners;
void distributeSlotsChangedEvent();
Type mType;
Item **mItems; /**< The holder of items */
int mSize; /**< The max number of inventory items */
int mUsed; /**< THe number of slots in use */
};
#endif // INVENTORY_H
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