from cs1lib import * from ball import Ball WINDOW_HEIGHT = 200 FRAMERATE = 40 TIMESTEP = 1.0 / FRAMERATE PIXELS_PER_METER = 10.0 ball = Ball(10, 16, 0, 0, 1.0, .3, .3, 1.) def main(): set_clear_color(1, 1, 1) clear() ball.draw(PIXELS_PER_METER, WINDOW_HEIGHT) ball.update_position(TIMESTEP) ball.update_velocity(TIMESTEP) start_graphics(main, 600, framerate=FRAMERATE)