in safety_gym/envs/engine.py [0:0]
def update_layout(self):
''' Update layout dictionary with new places of objects '''
self.sim.forward()
for k in list(self.layout.keys()):
# Mocap objects have to be handled separately
if 'gremlin' in k:
continue
self.layout[k] = self.data.get_body_xpos(k)[:2].copy()