Question about pybullet api saveState

[liangpan99]

I use 2 bullet clients.

import pybullet as p
from pybullet_utils import bullet_client

c1 = bullet_client.BulletClient(p.DIRECT)
c2 = bullet_client.BulletClient(p.DIRECT)

state_id = c1.saveState()
c2.restoreState(state_id) # wrong usage

The problem is that the saveState() api only returns an int type index for recording memory location, and it seems like that we cannot use the index to initialize another bullet client.

An alternative method is to use the saveBullet() api (saved in disk). However, in my project, it will cost a lot of time because of disk i/o.

is there anyone can help me? Thx!