turn on turbo mode, then move the slider under "observe" one to the right to "draw stationary" and then draw the line you want the balls to bounce on. After, move the slider one more to "draw balls". this draws a straight line that the balls drop from, click where you want the start of the line, then click where you want the end of the line. Here you can change the amount of balls and the size of each ball. Once its how you prefer, hit the space bar.
turbo mode. WIP
