do_once 
Only returns TRUE the first time. Optionally only locks if the child succeeds. Can be unlocked again
Vars | |
| lock_key | Blackboard key storing the completion latch. |
|---|---|
| only_lock_if_succeeded | Whether a child FAILURE should leave this decorator available for another attempt. |
Var Details
lock_key 
Blackboard key storing the completion latch.
only_lock_if_succeeded 
Whether a child FAILURE should leave this decorator available for another attempt.