Error when trying to get the angle of a body

Karriz

I'm making a physics-based game in which I need to know the direction the body is facing towards. Getting the value should be easy with b2.body:getAngle, but unfortunately I'm getting an error when trying to do so.

This is what I have: local angle = self.ball:getAngle()
And this is the error I get when trying to run my code: attempt to call method 'getAngle' (a nil value)

self.ball:getY() works just fine in the same project.

I couldn't find any examples or tutorials using getAngle. Does anybody know what I might be doing wrong?

Thanks in advance.

ar2rsawseen

@Karriz it seems that self.ball is a Sprite object representing physical shape, the body instance is stored somewhere else, where you store them may vary, usually I store body instances at self.ball.body, so in this situation self.ball.body:getAngle() should work

Here is a list of some box2d tutorials:
http://giderosmobile.com/forum/discussion/comment/9141#Comment_9141

Karriz

Thanks a lot, it works now.