Method think

src/Battlescape/AlienBAIState.cpp:142–390

* Runs any code the state needs to keep updating every AI cycle. * @param action (possible) AI action to execute after thinking is done. */

 * @param action (possible) AI action to execute after thinking is done.
 */
void AlienBAIState::think(BattleAction *action)
{
 	action->type = BA_RETHINK;
	action->actor = _unit;
	action->weapon = _unit->getMainHandWeapon();
	_attackAction->diff = (int)(_save->getBattleState()->getGame()->getSavedGame()->getDifficulty());
	_attackAction->actor = _unit;
	_attackAction->weapon = action->weapon;
	_attackAction->number = action->number;
	_escapeAction->number = action->number;
	_knownEnemies = countKnownTargets();
	_visibleEnemies = selectNearestTarget();
	_spottingEnemies = getSpottingUnits(_unit->getPosition());
	_melee = false;
	_rifle = false;
	_blaster = false;
	_reachable = _save->getPathfinding()->findReachable(_unit, _unit->getTimeUnits());
	if(_unit->getCharging() && _unit->getCharging()->isOut())
	{
		_unit->setCharging(0);
	}

	if (_traceAI)
	{
		Log(LOG_INFO) << "Unit has " << _visibleEnemies << "/" << _knownEnemies << " known enemies visible, " << _spottingEnemies << " of whom are spotting him. ";
		std::string AIMode;
		switch (_AIMode)
		{
		case 0:
			AIMode = "Patrol";
			break;
		case 1:
			AIMode = "Ambush";
			break;
		case 2:
			AIMode = "Combat";
			break;
		case 3:
			AIMode = "Escape";
			break;
		}
		Log(LOG_INFO) << "Currently using " << AIMode << " behaviour";
	}

	if (action->weapon)
	{
		RuleItem *rule = action->weapon->getRules();
		if (rule->getBattleType() == BT_FIREARM)
		{
			if (!rule->isWaypoint())
			{
				_rifle = true;
				_reachableWithAttack = _save->getPathfinding()->findReachable(_unit, _unit->getTimeUnits() - _unit->getActionTUs(BA_SNAPSHOT, action->weapon));
			}
			else
			{
				_blaster = true;
				_reachableWithAttack = _save->getPathfinding()->findReachable(_unit, _unit->getTimeUnits() - _unit->getActionTUs(BA_AIMEDSHOT, action->weapon));