Method grenadeAction

src/Battlescape/AlienBAIState.cpp:1762–1793

* Evaluates whether to throw a grenade at an enemy (or group of enemies) we can see. */

 * Evaluates whether to throw a grenade at an enemy (or group of enemies) we can see.
 */
void AlienBAIState::grenadeAction()
{
	// do we have a grenade on our belt?
	BattleItem *grenade = _unit->getGrenadeFromBelt();
	// distance must be more than X tiles, otherwise it's too dangerous to play with explosives
	if (explosiveEfficacy(_aggroTarget->getPosition(), _unit, grenade->getRules()->getExplosionRadius(), _attackAction->diff, true))
	{
		int tu = 4; // 4TUs for picking up the grenade
		tu += _unit->getActionTUs(BA_PRIME, grenade);
		tu += _unit->getActionTUs(BA_THROW, grenade);
		// do we have enough TUs to prime and throw the grenade?
		if (tu <= _unit->getStats()->tu)
		{
			BattleAction action;
			action.weapon = grenade;
			action.target = _aggroTarget->getPosition();
			action.type = BA_THROW;
			action.actor = _unit;
			Position originVoxel = _save->getTileEngine()->getOriginVoxel(action, 0);
			Position targetVoxel = action.target * Position (16,16,24) + Position (8,8, (2 + -_save->getTile(action.target)->getTerrainLevel()));
			// are we within range?
			if (_save->getTileEngine()->validateThrow(action, originVoxel, targetVoxel))
			{
				_attackAction->weapon = grenade;
				_attackAction->target = action.target;
				_attackAction->type = BA_THROW;
				_rifle = false;
				_melee = false;
			}
		}
	}
}

/**
 * Attempts a psionic attack on an enemy we "know of".