p2 physics weird behavior

[postepenno]

Recently I played with p2 physics in Phaser and noticed a strange behavior of a body.

Here is a scene for demonstration: click

I think that dynamic body (which is made of two rectangles) after colliding with static body should fall to the right side, but not balance on the static body. I tried to call adjustCenterOfMass() method after adding rectangles, but it didn't help.

 

So the question is: how to make the dynamic body to behave natural?

[wayfinder]

Works here: http://jsfiddle.net/GWdLx/1/

[postepenno]

Yeah, I tried to uncomment this line

sp2.body.adjustCenterOfMass();

but other weird things happen

 

1. The dynamic body falls below the bottom edge of canvas

2. This body starts to penetrate with static body

3. The body stops moving before touching the right edge.

I have a feeling that after adjusting center of mass some p2's internal stuff brokes and render debug shifts from the actual physics position.

[postepenno]

Thanks to schteppe, here is the solution: http://jsfiddle.net/HQvXv/1/

 

It was necessary to add

sp2.body.debugBody.draw();

after

sp2.body.adjustCenterOfMass();

to update debug body's render and fix the problem.

[wayfinder]

I'm suddenly afraid what kinds of workarounds I have coded, not knowing that debugBody.draw() call was necessary