Lab 3.1 - Drawing Shapes (Again)

As said by the sprite when the green flag is clicked, pressing the space bar will initiate its polygon drawing script. It will ask the user for input in two factors, the number of sides and the length of those sides. Arrow keys will move the sprite 20 steps in their correspoinding direction, and pressing "0" will reset the sprite's position to (0,0) and will clear any previously drawn shapes.