When Scratch 2.0 comes out, i'm thinking of creating a project that tracks where your finger is, where several dots on-screen are on the webcam and allows you, when your Webcam faces your screen, in presentation mode, to control TOUCH SCREEN projects on ANY monitor! You could even do Multi-Touch with this method! All that is required is a webcam! Yep, TOUCH SCREEN on ANY MONITOR!
How it would work:
There would be 5 red circles (1 in each corner, 1 in the middle) on the stage that would be detected by the project with camera input on background, by scanning it using a sprite that would skim over the entire stage. Once it knows where the circles are, it knows what angles/size everything is and will track motion from hands, figure out where it is according to the previously collected data, and move a sprite to that position!
What do you all think of this idea?
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well, the webcam itself is very sketchy, so far the most successful thing I've done with it was make a dancing frog that faced right & left when you moved left & right.
I have doubts about its accuracy though, for an application like this. unfortunately, they got rid of some visual effects that were in the pre-alpha, that would have allowed you to set tolerances and such. So good luck with sensing the red. I would stick with Panther for that sort of thing, if I were you.
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