/* Resizable stoplight
   This is one possible solution to the resizable stoplight assignment.
   Students could have their circles spaced differently, different color shades, or ???
   It's the scalable feature that's important.
*/

//Black rectangular portion of the stoplight
size(140,320);                  //Scales if the ratio of the canvas is maintained
background(0);
noStroke();

//red circle
fill(255,0,0);
ellipse(width/2,0.20 *height,height/4,height/4);

//yellow circle
fill(255,255,0);
ellipse(width/2,0.50 *height,height/4,height/4);

//green circle
fill(0,255,0);
ellipse(width/2,0.8*height,height/4,height/4);