Scratch

Llamalover · 2007-08-05 10:04:17

How can I make a sprite turn when dragged?

kevin_karplus · 2007-08-05 18:29:01

What behavior, exactly, do you want? If you can describe the behavior precisely, you are halfway to programming it.

Llamalover · 2007-08-06 05:35:43

I want there for eample to be a knob on a circle, when you drag that knob clockwise the circle turns, but not the oher way

Mayhem · 2007-08-06 05:43:08

Relatively straightforward, in fact.

You just need to make your circle, ensure teh centre of rotation is in the middle and the knob is at the "front) (90 degrees by default) and script something along the lines of
If <touching mousepointer> AND <mouse down> point towards <mousepointer>

The tricky thing is that inside the scratch program, it won't work properly because of the built-in ability to drag and drop sprites in the programming window. So to test it you'll need to go to full screen mode.

Mayhem · 2007-08-06 06:16:17

Ah - wait - you only want it to turn one way, eg clockwise?

Trickier... you'd need to compare the current direction with the mouse direction to see if the turn is valid... still doable, though.

Last edited by Mayhem (2007-08-06 06:18:12)

Llamalover · 2007-08-06 07:13:07

Thanks so much for your help!

Scratch

archived forums

#1 2007-08-05 10:04:17

How can I make a sprite turn when dragged?

#2 2007-08-05 18:29:01

Re: How can I make a sprite turn when dragged?

#3 2007-08-06 05:35:43

Re: How can I make a sprite turn when dragged?

#4 2007-08-06 05:43:08

Re: How can I make a sprite turn when dragged?

#5 2007-08-06 06:16:17

Re: How can I make a sprite turn when dragged?

#6 2007-08-06 07:13:07

Re: How can I make a sprite turn when dragged?

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