Simplified the sanity checks in 'RigidBodyState'.
Simplified the sanity checks in 'RigidBodyState'.

olitheolix/azrael,olitheolix/azrael,daviddeng/azrael,olitheolix/azrael,olitheolix/azrael,daviddeng/azrael,daviddeng/azrael,olitheolix/azrael,daviddeng/azrael,daviddeng/azrael