Method increaseByValue

src/Basescape/TransferItemsState.cpp:543–645

* Increases the quantity of the selected item to transfer by "change". * @param change How much we want to add. */

 * @param change How much we want to add.
 */
void TransferItemsState::increaseByValue(int change)
{
	const enum TransferType selType = getType(_sel);
	RuleItem * selItem = NULL;

	if (TRANSFER_ITEM == selType)
		selItem = _game->getRuleset()->getItem(_items[getItemIndex(_sel)]);

	if (0 >= change || getQuantity() <= _transferQty[_sel]) return;
	// Check Living Quarters
	if ((TRANSFER_SOLDIER == selType || TRANSFER_SCIENTIST == selType || TRANSFER_ENGINEER == selType)
		&& _pQty + 1 > _baseTo->getAvailableQuarters() - _baseTo->getUsedQuarters())
	{
		_timerInc->stop();
		_game->pushState(new ErrorMessageState(_game, "STR_NO_FREE_ACCOMODATION", _palette, Palette::blockOffset(15)+1, "BACK13.SCR", 0));
		return;
	}
	if (TRANSFER_CRAFT == selType )
	{
		Craft *craft =  _crafts[_sel - _soldiers.size()];
		if (_cQty + 1 > _baseTo->getAvailableHangars() - _baseTo->getUsedHangars())
		{
			_timerInc->stop();
			_game->pushState(new ErrorMessageState(_game, "STR_NO_FREE_HANGARS_FOR_TRANSFER", _palette, Palette::blockOffset(15)+1, "BACK13.SCR", 0));
			return;
		}
		if (_pQty + craft->getNumSoldiers() > _baseTo->getAvailableQuarters() - _baseTo->getUsedQuarters())
		{
			_timerInc->stop();
			_game->pushState(new ErrorMessageState(_game, "STR_NO_FREE_ACCOMODATION_CREW", _palette, Palette::blockOffset(15)+1, "BACK13.SCR", 0));
			return;
		}
		if (Options::storageLimitsEnforced && _baseTo->storesOverfull(_iQty + craft->getItems()->getTotalSize(_game->getRuleset())))
		{
			_timerInc->stop();
			_game->pushState(new ErrorMessageState(_game, "STR_NOT_ENOUGH_STORE_SPACE_FOR_CRAFT", _palette, Palette::blockOffset(15)+1, "BACK13.SCR", 0));
			return;
		}
	}
	if (TRANSFER_ITEM == selType && !selItem->getAlien()
		&& _baseTo->storesOverfull(selItem->getSize() + _iQty))
	{
		_timerInc->stop();
		_game->pushState(new ErrorMessageState(_game, "STR_NOT_ENOUGH_STORE_SPACE", _palette, Palette::blockOffset(15)+1, "BACK13.SCR", 0));
		return;
	}
	if (TRANSFER_ITEM == selType && selItem->getAlien()
		&& Options::storageLimitsEnforced * _aQty + 1 > _baseTo->getAvailableContainment() - Options::storageLimitsEnforced * _baseTo->getUsedContainment())
	{
		_timerInc->stop();
		_game->pushState(new ErrorMessageState(_game, "STR_NO_ALIEN_CONTAINMENT_FOR_TRANSFER", _palette, Palette::blockOffset(15)+1, "BACK13.SCR", 0));
		return;
	}

	// Personnel count
	if (TRANSFER_SOLDIER == selType || TRANSFER_SCIENTIST == selType || TRANSFER_ENGINEER == selType)
	{
		int freeQuarters = _baseTo->getAvailableQuarters() - _baseTo->getUsedQuarters() - _pQty;