Method unload

src/Battlescape/Inventory.cpp:749–793

* Unloads the selected weapon, placing the gun * on the right hand and the ammo on the left hand. * @return The success of the weapon being unlaoded. */

 * @return The success of the weapon being unlaoded.
 */
bool Inventory::unload()
{
	// Must be holding an item
	if (_selItem == 0)
	{
		return false;
	}

	// Item must be loaded
	if (_selItem->getAmmoItem() == 0 && !_selItem->getRules()->getCompatibleAmmo()->empty())
	{
		_warning->showMessage(_game->getLanguage()->getString("STR_NO_AMMUNITION_LOADED"));
	}
	if (_selItem->getAmmoItem() == 0 || !_selItem->needsAmmo())
	{
		return false;
	}

	// Hands must be free
	for (std::vector<BattleItem*>::iterator i = _selUnit->getInventory()->begin(); i != _selUnit->getInventory()->end(); ++i)
	{
		if ((*i)->getSlot()->getType() == INV_HAND && (*i) != _selItem)
		{
			_warning->showMessage(_game->getLanguage()->getString("STR_BOTH_HANDS_MUST_BE_EMPTY"));
			return false;
		}
	}

	if (!_tu || _selUnit->spendTimeUnits(8))
	{
		moveItem(_selItem->getAmmoItem(), _game->getRuleset()->getInventory("STR_LEFT_HAND"), 0, 0);
		_selItem->getAmmoItem()->moveToOwner(_selUnit);
		moveItem(_selItem, _game->getRuleset()->getInventory("STR_RIGHT_HAND"), 0, 0);
		_selItem->moveToOwner(_selUnit);
		_selItem->setAmmoItem(0);
		setSelectedItem(0);
	}
	else
	{
		_warning->showMessage(_game->getLanguage()->getString("STR_NOT_ENOUGH_TIME_UNITS"));
		return false;
	}

	return true;
}

/**
 * Arranges items on the ground for the inventory display.