lines = 1;

​

function setup() {

  createCanvas(700, 700);

  strokeWeight(1);

  background(248)

}

​

function draw() {

​

  translate(width / 2, height / 2);

​

  rR = random(0, 255);

  rG = random(0, 255);

  rB = random(0, 255);

  stroke(rR, rG, rB);

​

  var radius = 300;

  var angle = TAU / 100;

​

  var x = cos(angle * i) * radius;

  var y = sin(angle * i) * radius;

  i = i + 0.1;

​

  if (lines == 1) {

    line(0, 0, x, y);

  } else if (lines == 2) {

    line(0, 200, x, y);

  } else if (lines == 3) {

    line(200, 50, x, y);

    line(50, 200, x, y);

  } else if (lines == 4) {

    line(100, 100, x, y);

    line(-100, -100, x, y);

  } else if (lines == 5) {

    line(-300, 0, x, y);

    line(300, 0, x, y);

  } else if (lines == 6) {

    line(0, 0, x, y);

    line(50, -150, x, y);

    line(100, -280, x, y);

  } else if (lines == 7) {

    line(-300, 0, x, y);

    line(300, 0, x, y);

    line(0, -300, x, y);

    line(0, 300, x, y);

  }

​

}

​

function keyReleased() {

  if (keyCode == DELETE || keyCode == BACKSPACE) noLoop();

  if (keyCode == ENTER || keyCode == RETURN) loop();

  if (keyCode == ESCAPE) background(248);

  if (key == 's' || key == 'S') saveCanvas();

  if (key == '1') lines = 1;

  if (key == '2') lines = 2;

  if (key == '3') lines = 3;

  if (key == '4') lines = 4;

  if (key == '5') lines = 5;

  if (key == '6') lines = 6;

  if (key == '7') lines = 7;

}