What this does is allow you to draw using the mouse while setting down points in x and y lists and all the while keeping track of whether the pen should be up or down for the redraw in another list. Then everything is cleared and redrawn to those points in the lists. Mouse to Draw. Space to clear so you can see that it redraws forever.
@MabonBaladevaKain - Everything It is a very useful base project for many things including but not limited to moving drawings around the screen by adding to the x and y list values in order to change the positions of the lines. An experiment where you can see this happen: https://scratch.mit.edu/projects/243168811/
