Scratch

Project Notes

Based upon a game called Asteroids where if you went off one side of the screen you came back on the corresponding spot on the opposite side. Used to investigate the angles and how "fast" it takes to fill up the screen, how unevenly, etc.


Use the sliders to set int, sqrt, and div. They are used to form the angle measure (from the horizontal) by the formula:
(*int* + [the square root of *sqrt*])/*div*


The pen will follow the tracks of where the asteroid goes.


Press the LEFT ARROW KEY to start the asteroid moving, the RIGHT ARROW KEY once to pause, and the RIGHT ARROW KEY A SECOND TIME to erase all pen marks and put the asteroid back at the beginning.