[ODE] moving platforms in a game

[Mark Williams]

> Should I make the moving platform a body attached to the static
> world geometry with a slider joint?  I'm afraid doing this will cause
> the platform to fall when the character's weight lands on it.
You could use a slider joint, or just apply forces directly yourself. 
When dealing with collisions, instead of adding the contact joint 
between the character and the platform, add it between the character and 
the static world (body 0).

Cheers,
Mark