Method btnUnitDownClick

src/Battlescape/BattlescapeState.cpp:815–822

* Moves the selected unit down. * @param action Pointer to an action. */

 * @param action Pointer to an action.
 */
void BattlescapeState::btnUnitDownClick(Action *)
{
	if (playableUnitSelected() && _save->getPathfinding()->validateUpDown(_save->getSelectedUnit(), _save->getSelectedUnit()->getPosition(), Pathfinding::DIR_DOWN))
	{
		_battleGame->cancelCurrentAction();
		_battleGame->moveUpDown(_save->getSelectedUnit(), Pathfinding::DIR_DOWN);
	}
}

/**
 * Shows the next map layer.