Move in the circle

IsabelleK

Hello, is it possible to make in GS:
1. I have a long actor (20x100), and he is placed in the middle of the screen. I designed game for iPhone, and I would like to be able to rotate this actor, holding it with my finger. It have to move in the perfect circle (somthing like propeller).

If this is possible, how to do it?

Thank you very much.

empifrik

Constrain Attribute self.rotation to vectorToAngle(self.position.x - touch_x, self.position.y - touch_y)
should work if i understood your problem ok

if you only want it to rotate while the touch is on the actor, put the constrain inside a rule if touch is inside.

IsabelleK

I was thinking about something like clock from Antrim Escape:
http://2.bp.blogspot.com/_K0mZvoYUgnQ/S3wEaTVGcAI/AAAAAAAAABM/9t_z2s-8drE/s320/golden+key.png

Player is able to tap on the hand of a clock, and holding his finger on this actor, move him in the circle. When he releases his finger, the hand of clock will stay on the current position.
So I want to make something like that, but with the propeller:
http://www.timtim.com/public/images/drawings/large/001516_Propeller.gif

Thank you for your reply

JackBQuick

Perhaps:

firemaplegames's Rotation DEMO

IsabelleK

Thank you! :-)