import {PolygonShape} from './polygon';
export {PolygonShape};

import {RectangleShape} from './rectangle';
export {RectangleShape};

import {ShapeList} from './list';
export {ShapeList};

export function shapeFromJSON(json) {
  let shape;
  switch (json.type) {
    case 'list':
      shape = new ShapeList();
      break;
    case 'polygon':
      shape = new PolygonShape();
      break;
    case 'rectangle':
      shape = new RectangleShape();
      break;
  }
  return shape.fromJSON(json);
}