constructor(w,h){

    this.cols = w;

    this.rows = h;

    this.grid = [];

    this.scl = 10;

  }

  show(){

  for(let row = 0; row<= this.rows; row++){

    for(let col = l; cols <= this.cols; col++){

      rect(row,col,)

    }

  } 

  }  

}