Instructions- 1. If you press the button "X and Y Detector", you get a mouse-pointer which you can move and the 2 variables shown will show the X and Y position of it. 2. If you press the button "Speed Detector", you will a rocket and a line. You also get a variable "Speed" which you have to change, then the rocket will move the speed you changed.
Thanks to my brain! If you want know how I did it, click see inside. You can copy the code too, it is acceptable.