this.app = {
  //英雄升级参数
  levelParameter: [
    { speed: 1, bulletSpeed: 4, maxBulletSize: 1, init: 0 },
    { speed: 1, bulletSpeed: 4, maxBulletSize: 1, init: 0 },
    { speed: 2, bulletSpeed: 6, maxBulletSize: 1, init: 0 },
    { speed: 2, bulletSpeed: 6, maxBulletSize: 2, init: 32 },
    { speed: 2, bulletSpeed: 6, maxBulletSize: 2, init: 32 },
    { speed: 2, bulletSpeed: 6, maxBulletSize: 3, init: 64 },
    { speed: 2, bulletSpeed: 6, maxBulletSize: 4, init: 64 },
    { speed: 2, bulletSpeed: 6, maxBulletSize: 4, init: 96 },
    { speed: 2, bulletSpeed: 7, maxBulletSize: 5, init: 96 }
  ],
  npcObj: {
    NO1: {
      dirObj: {
        init: 32 * 4
      }
    },
    NO2: {
      dirObj: {
        init: 32 * (4 + 2)
      },
      datamodel: {
        speed: 2
      }
    },
    NO3: {
      dirObj: {
        init: 32 * (4 + 4)
      },
      datamodel: {
        bulletSpeed: 6
      }
    },
    NO4: {
      dirObj: {
        init: 32 * (4 + 6)
      },
      HP: 4
    }
  },
  maxNpcSize: 2,
  npcSize: 0,
  gameStatus: false,
  GAMEOBJ: {
    hero: [], //暂时只有一个hero，这里先不予关注
    npc: [],
    heroBullet: [],
    npcBullet: [],
    boom: []
  },
  tick: $.proxy(function () {
    if (this.me.status == ‘destroy‘) {
      this.app.gameStatus = false;
    }

    $.each(this.app.GAMEOBJ, $.proxy(function (k, v) {
      //首先做筛选
      this.app.GAMEOBJ[k] = _.filter(this.app.GAMEOBJ[k], function (item) {
        return item.status !== ‘destroy‘;
      });
      for (var i = 0, len = this.app.GAMEOBJ[k].length; i < len; i++) {
        this.app.GAMEOBJ[k][i].move();
      }
    }, this));

    this.createNPC();
    this.dataChange();
    this.levelUp();

    if (this.app.gameStatus) {
      rAF($.proxy(this.app.tick, this));
    }

  }, this),
  //创建NPC坦克
  createNPC: $.proxy(function (opts) {
    opts = $.extend({
      gameRule: ‘npc‘,
      wrapper: this.$el.find(‘#map‘),
      app: this.app
    }, opts, true);
    var flag = parseInt(Math.random() * 4);
    if (parseInt(Math.random() * 5) == 4) {
      opts.speciality = ‘hp‘;
    }
    opts = $.extend(opts, this.app.npcObj[‘NO‘ + (flag + 1)], true);
    console.log(opts)

    var npc = new NPCTank(opts);
    var i, len, bullet;

    npc.show();

    /*这里英雄每一步移动会对NPC产生影响，同样NPC会对影响造成影响
    npc只需要关注英雄和英雄发出的子弹即可，英雄处理要复杂的对多
    */
    this.me.registerObserver(npc);
    npc.registerObserver(this.me);

    //缺陷，npc暂时不关注npc，可互相穿透
    //          $.each(this.app.GAMEOBJ.npc, function (i, item) {
    //            npc.registerObserver(item);
    //          });

    //记录最后一个npc以便测试
    this.npc = npc;

    this.app.GAMEOBJ.npc.push(npc);

  }, this),
  //创建我方英雄坦克
  createHero: $.proxy(function () {
    this.me = new Tank({
      datamodel: {
        x: 192,
        y: 192
      },
      gameRule: ‘hero‘,
      wrapper: this.$el.find(‘#map‘),
      app: this.app
    });
    this.me.show();
    window.me = this.me;
    this.app.GAMEOBJ.hero.push(this.me);

  }, this),
  createBullet: $.proxy(function (opts) {
    //子弹的创建要区分是hero还是npc
    opts = $.extend({
      wrapper: this.$el.find(‘#map‘),
      app: this.app
    }, opts, true);
    var gameRule = opts.gameRule;
    var bullet = new Bullet(opts);
    bullet.show();

    //这里根据子弹角色不同，会有不同的观察对象，npc子弹对应英雄，英雄子弹对象npc！

    //英雄子弹需要被npc坦克以及子弹观察
    if (gameRule == ‘heroBullet‘) {
      $.each(this.app.GAMEOBJ.npc, function (i, item) {
        bullet.registerObserver(item);
      });

      $.each(this.app.GAMEOBJ.npcBullet, function (i, item) {
        bullet.registerObserver(item);
      });
    } else if (gameRule == ‘npcBullet‘) {
      //npc子弹来了，英雄就要小心了
      $.each(this.app.GAMEOBJ.hero, function (i, item) {
        bullet.registerObserver(item);
      });

      $.each(this.app.GAMEOBJ.heroBullet, function (i, item) {
        bullet.registerObserver(item);
      });
    }

    this.app.GAMEOBJ[gameRule].push(bullet);

    return bullet;
  }, this),
  createBoom: $.proxy(function (opts) {
    opts = $.extend({
      wrapper: this.$el.find(‘#map‘),
      app: this.app
    }, opts, true);
    var boom = new Boom(opts);
    boom.show();
    this.app.GAMEOBJ.boom.push(boom);
    return boom;

  }, this)

};