场景更改 Phaser 3 中的 setInterval 是否被清除？

Question

Phaser 3 场景变化时所有的 setIntervals 都被清除了吗？例如，如果我有这个代码：

class ExampleScene extends Phaser.Scene {
  constructor () {
    super();
  }
  preload () {

  }
  create () {
    setInterval(() => console.log(true), 1000);
  }
  update () {
  
  }
}

我换个场景，它会继续向控制台记录true吗？ Phaser 中是否有不需要我手动删除所有间隔的替代方案？

Answer 1

简短的回答是，否。因为 setInterval 是一个 javascript 函数。
函数详情：here in the documentation on mdn

您可以做的是将 setInvertal calls/id“保存”在列表中，并在特定的 scene 事件中清除它们，例如 shutdown, 暂停, 毁灭 ...当该事件触发时，您可以停止所有保存的间隔，或者如此 (details to possible Scene events)。
这也被认为是良好做法，因为当离开移相器场景时，您总是应该清理资源。

示例（这里有关机事件）:

 ...
 // setup list for the intervals, that should be cleared later
 constructor () {
    super();
    this.intervals = [];
  }

 create () {
     ...
     // example of adding an interval, so that I can be cleanup later
     this.intervals.push(setInterval(() => console.log(true), 1000));
     ...

     // example listening to the shutdown Event
     this.events.on('shutdown', this.stopAllIntervals, this);
 }
 ...
 // example "cleanup"-function, that is execute on the 'shutdown' Event
 stopAllIntervals(){
     for(let interval of this.intervals){
          clearInterval(interval);
     }
 }
 ...

现在您只需在需要的事件函数中调用 stopAllIntervals，当您想要停止它们时。

From the offical documenation, on the shutdown Event: ... You should free-up any resources that may be in use by your Scene in this event handler, on the understanding that the Scene may, at any time, become active again. A shutdown Scene is not 'destroyed', it's simply not currently active. Use the DESTROY event to completely clear resources. ...

场景更改 Phaser 3 中的 setInterval 是否被清除？

Is setInterval cleared on scene change Phaser 3?

javascript

phaser-framework