Unset static property in P2 physics

[Vaclav]

Hello,

 

I experience that once a body in p2 physics has been set to static, then static = false has no effect.

The documentation says it should return to dynamic behaviour when static is set to false.

 

What I did:

take this example:

http://examples.phaser.io/_site/view_full.html?d=p2%20physics&f=static+body.js&t=static%20body

 

After:

//  Make staticstatic1.body.static = true;static2.body.static = true;

Add:

static1.body.static = false;static2.body.static = false;

Still the bodies remains static. I'm using Phaser 2.0.5.

 

What am I doing wrong?

 

[lewster32]

Out of interest, what happens if you do the following instead?

static1.body.motionState = Phaser.Physics.P2.Body.DYNAMIC;

[Vaclav]

It doesn't help.

I've tried with Phaser 2.0.7 as well.

 

If I set to static with motionState = STATIC and then I set it to DINAMYC it works, however, the static object's collision is not correct (the dynamic object penetrates the static object, then a force is applied to the dynamic body which tosses it away.

[lewster32]

Hmmm, I'm not sure - it sounds like an issue to me, so you may want to post it on Github and see what transpires. Schteppe and Wayfinder are the experts when it comes to P2, so maybe they'll have more to say on the matter.

[Vaclav]

I've found the solution: one has to restore the body's mass when setting static property to false, because the static body's mass is set to 0.

Should I create an issue, or am I expected to set the mass manually?

[lewster32]

I'd say that's an oversight that should be raised, yes. It does make things a little awkward though, as it probably means it'll have to cache the previous mass value in case you changed it from the default.