Method selectFireMethod

src/Battlescape/AlienBAIState.cpp:1698–1757

* Selects a fire method based on range, time units, and time units reserved for cover. */

 * Selects a fire method based on range, time units, and time units reserved for cover.
 */
void AlienBAIState::selectFireMethod()
{
	int distance = _save->getTileEngine()->distance(_unit->getPosition(), _attackAction->target);
	_attackAction->type = BA_RETHINK;
	int tuAuto = _attackAction->weapon->getRules()->getTUAuto();
	int tuSnap = _attackAction->weapon->getRules()->getTUSnap();
	int tuAimed = _attackAction->weapon->getRules()->getTUAimed();
	int currentTU = _unit->getTimeUnits();

	if (distance < 4)
	{
		if ( tuAuto && currentTU >= _unit->getActionTUs(BA_AUTOSHOT, _attackAction->weapon) )
		{
			_attackAction->type = BA_AUTOSHOT;
			return;
		}
		if ( !tuSnap || currentTU < _unit->getActionTUs(BA_SNAPSHOT, _attackAction->weapon) )
		{
			if ( tuAimed && currentTU >= _unit->getActionTUs(BA_AIMEDSHOT, _attackAction->weapon) )
			{
				_attackAction->type = BA_AIMEDSHOT;
			}
			return;
		}
		_attackAction->type = BA_SNAPSHOT;
		return;
	}


	if ( distance > 12 )
	{
		if ( tuAimed && currentTU >= _unit->getActionTUs(BA_AIMEDSHOT, _attackAction->weapon) )
		{
			_attackAction->type = BA_AIMEDSHOT;
			return;
		}
		if ( distance < 20
			&& tuSnap
			&& currentTU >= _unit->getActionTUs(BA_SNAPSHOT, _attackAction->weapon) )
		{
			_attackAction->type = BA_SNAPSHOT;
			return;
		}
	}

	if ( tuSnap && currentTU >= _unit->getActionTUs(BA_SNAPSHOT, _attackAction->weapon) )
	{
			_attackAction->type = BA_SNAPSHOT;
			return;
	}
	if ( tuAimed && currentTU >= _unit->getActionTUs(BA_AIMEDSHOT, _attackAction->weapon) )
	{
			_attackAction->type = BA_AIMEDSHOT;
			return;
	}
	if ( tuAuto && currentTU >= _unit->getActionTUs(BA_AUTOSHOT, _attackAction->weapon) )
	{
			_attackAction->type = BA_AUTOSHOT;