Lua error, accessing _btRigidBody?

Hi,

I'm experimenting with using Lua to control physics objects, but getting a runtime error. Attaching a lua script to an dynamic body, I'm trying to apply an impulse with the following code:

Code:


Bot.vel = SIO2.sio2Vec3Init();
Bot.vel.x = 2.0;
Bot.vel.y = 2.0;
Bot.vel.z = 1.5;
Bot.obj._btRigidBody.setLinearVelocity( Bot.vel );


But I get the following runtime error:

[ ERROR ] 1:[string "-- This script is just an example and sugge..."]:58: attempt to index field '_btRigidBody' (a userdata value).

I'm sure this is a case where "setLinearVelocity()" isn't wrapped in Lua, but can you suggest what I would need to change to access physics objects? Do I need to update the sio2.module to add all the Bullet headers or is there an easier way?

Thanks,
--yarri

I think wrapping ALL bullet API is a bit useless... I would write some helper function to do what I want and get back the result from LUA. However... I do not believe that Bullet should be included in LUA only the API that access internal Bullet functions... just like SIO2.

Make sense... I'm working on steering in Lua, and so will just pass the vector back to SIO2 via the userdata pointer:
Bot.obj.userdata = Bot.vel;

And then update the physics in the SIO2 render thread.

--yarri