​

let s = 1 //scale

c = 0.06 // change in scale

​

//color values

​

let b1 = 255

let c1 = 255

let d1 = 255

let e1 = 255

let f1 = 255

let g1 = 255

let h1 = 255

​

let b2 = 255

let c2 = 255

let d2 = 255

let e2 = 255

let f2 = 255

let g2 = 255

let h2 = 255

​

let b3 = 255

let c3 = 255

let d3 = 255

let e3 = 255

let f3 = 255

let g3 = 255

let h3 = 255

​

function setup() {

  createCanvas(400, 400);

}

​

function draw() {

  background(0);

  translate(200,200);

  stroke(255);

  s = s + c; //change scale

  if(s>8){

    c = c*-1; //go back

    //random colors

    b1 = random(100,255);

    b2 = random(100,255);

    b3 = random(100,255);

    c1 = random(100,255);

    c2 = random(100,255);

    c3 = random(100,255);

    d1 = random(100,255);

    d2 = random(100,255);

    d3 = random(100,255);

    e1 = random(100,255);

    e2 = random(100,255);

    b3 = random(100,255);

    f1 = random(100,255);

    f2 = random(100,255);

    f3 = random(100,255);

    g1 = random(100,255);

    g2 = random(100,255);

    g3 = random(100,255);

    h1 = random(100,255);

    h2 = random(100,255);

    h3 = random(100,255);

  } if(s<1){

    c = c *-1 // go forward

  }

  //circles

  scale(s);

  noFill();

  circle(0,0,50);

  stroke(b1,b2,b3);

  circle(0,0,100);

  stroke(c1,c2,c3);

  circle(0,0,150);

  stroke(d1,d2,d3);

  circle(0,0,200);

  stroke(e1,e2,e3);

  circle(0,0,250);

  stroke(f1,f2,f3);

  circle(0,0,300);

  stroke(g1,g2,g3);

  circle(0,0,350);

  stroke(h1,h2,h3);

  circle(0,0,400);

}

​

function mousePressed() {

  save("animation.png");

}