​

function setup() {

  createCanvas(500, 500);

​

}

​

function draw() {

  background(0);

  r = new Light();

  r.draw();

}

​

class Light{

    constructor(){

    this.dir = random(0,TWO_PI);

    this.pos = createVector(mouseX, mouseY);

    this.nbRays = 1000;

  }

  draw(){

    stroke(255);

    let radii = 100;

    for(let i = 0 ; i < this.nbRays ; i++){

      let rx = sin(i/this.nbRays*TWO_PI) * radii + this.pos.x

      let ry = cos(i/this.nbRays*TWO_PI) * radii + this.pos.y

      let l = new Line();

      l.fromPoints(createVector(rx, ry), this.pos)

      l.drawLine();

      // intersects with boundary

    }

  }

}

​

class Ray{

    constructor(){

      this.line = new Line();

    }

}

​

class Line{

  constructor(){

    // y = ax + b

    this.a = 0;

    this.b = 0;

  }

  fromPoints(p1, p2){

    this.a = ( p2.y - p1.y ) / ( p2.x - p1.x );

    this.b = p1.y - this.a * p1.x;

  }

  drawLine(){

    // draw between x min and x max

    //line(0, this.b, // x1 . y1

    //width, width*this.a+this.b// x2  y2

    //)

    for(let i = 0; i < 10; i++){

      let p1 = createVector(0, this.b);

      let p2 = createVector(width, width*this.a+this.b);

      point(p5.Vector.lerp(p1,p2,random()))

    }

  }

  intersectsLine(line){

  }

}