along
Wraps this action and the passed action with a ParallelAction, executing them both at the same time.
Return
ParallelAction storing both actions.
Parameters
action
will be executed at the same time as this action.
Adds action to this ParallelAction, so long as this isn't a SequenceAction. If it is a SequenceAction, it creates a new ParallelAction executing both actions in parallel.
Return
this ParallelAction, now containing action, or a new ParallelAction if this is a SequenceAction.
Parameters
action
will be added to this ParallelAction.
See also
for a non-mutating alternative.