text: class Roof {
      constructor(x,y,w,h) {
          var options = {
              isStatic : true,
              density : 0.3,
              friction : 0,
              restitution : 0
          }
  
          this.body = Bodies.rectangle(x,y,w,h,options);
          this.width = w;
          this.height = h;
          World.add(world, this.body);
      }
  
      display() {
          var pos = this.body.position;
          fill(72);
          noStroke();
          rect(pos.x, pos.y, this.width, this.height);
      }
  }