@brief Check to see whether the geom has an offset.
This function will return non-zero if the offset has been created.
Note that there is a difference between a geom with no offset,
and a geom with an offset that is the identity transform.
In the latter case, although the observed behaviour is identical,
there is a unnecessary computation involved because the geom will
be applying the transform whenever it needs to recalculate its world
position.
@param geom the geom to query.
@returns Non-zero if the geom has an offset, zero otherwise.
@ingroup collide
@brief Check to see whether the geom has an offset.
This function will return non-zero if the offset has been created. Note that there is a difference between a geom with no offset, and a geom with an offset that is the identity transform. In the latter case, although the observed behaviour is identical, there is a unnecessary computation involved because the geom will be applying the transform whenever it needs to recalculate its world position.
@param geom the geom to query. @returns Non-zero if the geom has an offset, zero otherwise. @ingroup collide