Using the `.scale` setter on a Matter gameobject doesn't update the matter body size

[Stever1388]

Version

• Phaser Version: 3.86.0

• Operating system: Windows

• Browser: Chrome

Description

Setting the scale property on a Matter gameobject doesn't adjust the size of the matter body object so the physics bounds are incorrect. Setting the scale via setScale/scaleX/scaleY works however.

Example Test Code

If you enable body debug in your Game Config with

physics: {
   default: 'matter',
   matter: {
      gravity: {
         y: 0
      },
      debug: true,
      debugBodyColor: 0xffffff
   }
}

then you should be able to see the issue with the following code:

this.matterObj = this.scene.matter.add.gameObject(...);
this.matterObj.scale = 10;

Additional Information

It's possible that scale isn't a valid property on Matter gameobjects - looking at the Transform component of Matter gameobjects doesn't seem to include a scale property. However, the game we updated from Phaser 3.55.2 was using this property, and it seemed to work (though I can't verify it anymore). If it's not a property, I feel like it should be added to be consistent with out objects that have a scale property (makes tweening easier for example).

[zekeatchan]

Hi @Stever1388. Thanks for submitting this issue. We have fixed this and pushed it to the master branch. It will be part of the next release. Do test it out and let us know if you encounter any issues.