/**
 * 暂停游戏类（暂停继续游戏）
 * @property {object} lib 库对象
 * @property {object} suspend 面板元素对象
 */
function Suspend() {
  this.lib = library;

  this.suspend = null;
}

Suspend.of = (function () {
  let instance = null;
  return function () {
    if (!instance) {
      instance = new Suspend();
    }
    instance.init();
    return instance;
  };
})();

// 初始化
Suspend.prototype.init = function () {
  this.suspendGame();
};

// 暂停游戏按钮
Suspend.prototype.suspendGame = function () {
  // const lib = this.lib;
  const suspend = new this.lib.suspend();
  suspend.x = 50;
  suspend.y = this.lib.properties.height - 100;
  this.suspend = suspend;
  const _this = this;
  // 继续游戏
  this.suspend.addEventListener(
    'click',
    function () {
      _this.hide();
      continueMessage();
    },
    false,
  );
  // stage.addChild(this.suspend);
  // stage.removeChild(this.suspend);
};

Suspend.prototype.hide = function () {
  stage.removeChild(this.suspend);
};

Suspend.prototype.show = function () {
  stage.addChild(this.suspend);
};