[P2] Moving a Group doesn't move bodies of its children

[pandavigoureux29]

Hi all,

 

I've come across a problem with groups and P2 bodies.

 

 

Basically, I have a group, to which I add a Sprite with a P2.Body.

 

So when I move my group, the sprite is actually moving with it, but its body does not budge an inch.

 

Is there a fix to this? 

 

Cheers

[pandavigoureux29]

In order to make it more understandable, I've done a fiddle example. There, someone may see what's done wrong (or if it's a bug)

 

http://jsfiddle.net/pandavigoureux29/x8y9x/

 

Cheers.

[JHook]

What you have happening is that p2 is really a separate system than phaser. Once it's connected to your sprite it becomes the puppet master and phaser handles the front end. So adjusting phaser's group position is only adjusting the way it is rendered, but p2 has no clue. Reading the p2 docs ( http://schteppe.github.io/p2.js/docs/ ) there aren't any group type objects so trying to integrate that directly would be tricky. I would probably write a function that adjusts the p2 bodies directly instead of adjusting the group position.

[pandavigoureux29]

Yeah I assumed it was that kind of issue, but shouldn't this represent an actual Phaser issue?

One would expect this to naturally work ( well, I do )

[JHook]

If phaser was a commercial product I would expect it, but in this context I wouldn't expect the p2 integration to be 100% polished. Of course, it's open source so you can add that functionality! 

[Mefteg]

In my opinion, it's not a matter of commercial product or not. Phaser is user friendly since the begining! But I agree with you, we should propose a fix to it because it is open source.

[pandavigoureux29]

I guess I should wait for the 2.1 then. I think there is some work on P2 that will be done.

If the issue is still there I'll try something then.