canvas = createCanvas(400, 400);

  background(255);

  angleMode(RADIANS);

}

​

function randomIntShading(){

  let choice = int(random(1,9));

  if(choice >= 1 & choice <= 3){

    return random(0, 1/2 * PI);

  }

  else if(choice == 4 || choice == 5){

    return random(1/2 * PI , PI);

  }

  else if(choice == 6 || choice == 7){

    return random(3/2 * PI, 2 * PI);

  }

  else if(choice == 8){

    return random(PI ,3/2 * PI);

  }

}

​

function randomInt(){

  return random(0,2*PI);

}

​

function getPoint(){

  let a = randomIntShading();

  return createVector(150 * cos(a),150 * sin(a));

}

​

function draw() {

  stroke(0,0,0,15);

  translate(200,200);

  let point1 = getPoint();

  let point2 = getPoint();

  line(point1.x,point1.y,point2.x,point2.y);

}