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Extending sprite reduces performance


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Hello!

When extending the sprite class and using it instead of adding the default sprite the performance becomes really bad.

// Using this reduces the performance a lot after 5k+ sprites:
class Car extends Sprite {
  constructor() {
    super();
    this.texture = Texture.from("/car.png");
    this.interactive = true;
    this.anchor.set(0.5, 0.5);
    //... other manipulation
  }
}

app.stage.addChild(new Car())

// compared to this (nearly no performance loss even after 50k+ sprites):
function addCar(app) {
  const sprite = new Sprite()
  sprite.texture = Texture.from("/car.png");
  sprite.interactive = true;
  sprite.anchor.set(0.5, 0.5);
  //... other manipulation
}

app.stage.addChild(addCar(app))

What could be the reason for this?

Edited by Galious
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