Use arrow keys to move, click on screen to do a pendulum. Check out the two projects below, I used some stuff from them. https://snap.berkeley.edu/snap/snap.html#present:Username=sayochi&ProjectName=pendulum%20test&editMode&noRun https://snap.berkeley.edu/project?user=codechespin&project=Ball%20Physics%20v1.0data:image/png;base64,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:image/png;base64,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