// https://thecodingtrain.com/CodingChallenges/145-2d-ray-casting.html

// https://youtu.be/TOEi6T2mtHo

​

// 2D Ray Casting

​

let walls = [];

let ray;

let particle;

let xoff = 0;

let yoff = 10000;

​

function setup() {

  createCanvas(400, 400);

  for (let i = 0; i < 5; i++) {

    let x1 = random(width);

    let x2 = random(width);

    let y1 = random(height);

    let y2 = random(height);

    walls[i] = new Boundary(x1, y1, x2, y2);

  }

  walls.push(new Boundary(-1, -1, width, -1));

  walls.push(new Boundary(width, -1, width, height));

  walls.push(new Boundary(width, height, -1, height));

  walls.push(new Boundary(-1, height, -1, -1));

  particle = new Particle();

}

​

function draw() {

  background(0);

  for (let wall of walls) {

    wall.show();

  }

  //particle.update(noise(xoff) * width, noise(yoff) * height);

  particle.update(mouseX, mouseY);

  particle.show();

  particle.look(walls);

​

  xoff += 0.01;

  yoff += 0.01;

}

​