/**
 * Variables. 
 * 
 * Variables are used for storing values. In this example, change 
 * the values of variables to affect the composition. 
 */
 
function setup() {
  var canvas = createCanvas(640, 360);
  canvas.parent("p5container");
  background(0);
  stroke(153);
  strokeWeight(4);
  strokeCap(SQUARE);

  var a = 50;
  var b = 120;
  var c = 180;

  line(a, b, a+c, b);
  line(a, b+10, a+c, b+10);
  line(a, b+20, a+c, b+20);
  line(a, b+30, a+c, b+30);

  a = a + c;
  b = height-b;

  line(a, b, a+c, b);
  line(a, b+10, a+c, b+10);
  line(a, b+20, a+c, b+20);
  line(a, b+30, a+c, b+30);

  a = a + c;
  b = height-b;

  line(a, b, a+c, b);
  line(a, b+10, a+c, b+10);
  line(a, b+20, a+c, b+20);
  line(a, b+30, a+c, b+30);
  noLoop();
}



