/**
 * 演示模式类
 * @property {object} lib 库对象
 * @property {object} stopDemo 面板元素对象
 */
function Demo() {
  this.lib = library;

  this.stopDemo = null;
}

Demo.of = function () {
  const instance = new Demo();
  instance.init();
  return instance;
};

// 初始化
Demo.prototype.init = function () {
  this.showStopDemo();
};

// 显示演示模式按钮
Demo.prototype.showStopDemo = function () {
  const lib = this.lib;
  const stopDemo = new lib.stopDemo();
  stopDemo.x = 50;
  stopDemo.y = lib.properties.height - 100;
  this.stopDemo = stopDemo;
  // 关闭演示模式
  this.stopDemo.addEventListener(
    'click',
    function () {
      stage.removeChild(stopDemo);
      location.hash = '';
      location.reload();
      isDemo = false;
    },
    false,
  );
  stage.addChild(stopDemo);
};