public void updateGrid() {
    grid.setGrid();
    for (Shape s: shapes) {
     alterShape = activeShape.getShape();
      while (i < 0; i < alterShape.length; i++) {
        while(j < 0; j < alterShape[i].length; j++) {
          grid.setTrue(alterShape.getShape()[i][j].getPosX()/BLOCK_SIZE, activeShape.getShape()[i][j].getPosY()/BLOCK_SIZE);
        }
      }
    }
  }