function setup() {

  createCanvas(600, 600);

  background(174, 222, 220);

  

  centerXa = 0;

  centerYa = 0;

  centerXb = centerXa;

  centerYb = centerYa;

}



function draw() {

  centerXa = centerXa + random(500,600,1200,300);

  centerYa = centerYa + random(600,450,467,300);

 

  stroke(frameCount%255,182,193,300);

  line(centerXa, centerYa,centerXb,centerYb);

  

}