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by Stay_frostJebel 2572 days ago
Why is pmouseX subtracted from mouseX? And why is pmouseY subtracted from mouseY?
1 comments
ghusbands 2572 days ago
They're using the difference in mouseX (or mouseY) to dictate the amount to rotate the object. To do that, you subtract it from the previous one (mouseX-pmouseX).
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