[ODE] simulation loop problem

[Roel van Dijk]

How are you observing the simulation? If you're rendering the objects in the 
simulation don't forget to draw them after each world step.

On Wednesday 07 September 2005 09:09, Esra Suel wrote:
> I am trying to make a simple body walk. What I want to do is to apply a
> force for a certaion amount of time at a certain point. then, after that
> time, apply another force and it should go like that. But I cannot find how
> to apply certain forces and torques for certain amount of time.
>
> as a simple example,
> I tried this code in my simulation loop I was hoping my body to start
> rotating and then stop. but i did not see any rotation.
>
> Code:
>
>   dBodyAddRelTorque(body[0],0,10,0);
>   SpaceCollide (space,0,&nearCallback);
>   dWorldStep (world,0.0002);
>   dBodyAddRelTorque(body[0],0,-10,0);
>   dSpaceCollide (space,0,&nearCallback);
>   dWorldStep (world,0.0002);
>
>
>
>
> I though that maybe the time step is to small for me to observe the
> rotation, so I tried the code below. But there was no difference.
>
> Code:
>  dBodyAddRelTorque(body[0],0,10,0);
>  SpaceCollide (space,0,&nearCallback);
>  if (a < 20000000)
>  {
>    dWorldStep (world,0.0002);
>    a++;
>  }
>
>  dBodyAddRelTorque(body[0],0,-10,0);
>  if (b < 20000)
>  {
>    dWorldStep (world,0.0002);
>    b++;
>  }
>
> So know I do not know what to do, I would be glad if you could help me out.
>
> Thanks