Magnetic Crane

CircleTime

A large magnet is used in many car demolition businesses. Instead of using a mechanical claw on the arm of a crane to grab and pick up a car, a gigantic magnet is used to lock onto the metal of the car's roof so that it can be moved. This method is used to stack the crushed cars or to deposit a car into the crusher.

How to do this in GameSalad???

There has been some general magnetism discussions on the forums prior - but nothing specific to the behaviors of a magnetic crane. http://gamesalad.com/forums/topic.php?id=21480

Thanks in advance,
CircleTime

CircleTime

@tshirtbooth Excellent. Thank you very much. I'm off to a great start now.

It is funny how one answer can open up a new set of questions.

1). the magnet should only be active from below. How?
2.) the magnet swings and rotates a bit, how to keep the car attached and rotating considering pivot point?
3.) the magnet is part of a bigger structure, is it possible to have a "compound actor" made of multiple actors using constrain attributes, however still respecting rotation pivots?

I feel greedy asking all these questions. However, this is what I will be trying to solve next. Any guidance is appreciated.

Thank you much,
CircleTime

jb15

I can answer 1: Make a global, real attribute, cranex. In the magnet/crane's rules, use constrain attribute: game.cranex to self.x. Then in the car's rules, have it only accelerate if self.x is less than cranex.