let ray;

let particles = [];

var angle = 0;

var step;  

var r = 10;

var xOff = 0;

var yOff = 100000;

​

function setup() {

  createCanvas(windowWidth, windowHeight);

  walls.push(new Boundary(0,0,width,0));

  walls.push(new Boundary(width,0,width,height));

  walls.push(new Boundary(width,height,0,height));

  walls.push(new Boundary(0,height,0,0));

  for(var i = 0; i < 10; i++){

    walls.push(new Boundary(random(width),random(height),random(width),random(height)));

  }

  for(let a = 0; a < 9; a++){

    particles.push(new Particle());

  }

}

​

function draw() {

  background(240);

  step = TWO_PI/8;

  for(let wall of walls){

    wall.show();

  }

  var xNoise = noise(xOff) * width;

  var yNoise = noise(yOff) * height;  

  xOff += 0.01;

  yOff += 0.01;

  particles[0].update(xNoise,yNoise);

  for(var i = 1; i < particles.length; i++){

    let x = r * sin(angle);

    let y = r * cos(angle);

    particles[i].update(xNoise+x,yNoise+y);

    angle = angle + step;

  }

  for(let particle of particles){

    particle.show();

    particle.look(walls);

  }

  //ray.show();

  //ray.lookAt(mouseX,mouseY);

  //let pt = ray.cast(wall);

  //if(pt){

  //  fill(255);

  //  ellipse(pt.x,pt.y,10,10);

  //}

}