public void AddState(State state)

State

If the state is already in this state machine, this method does nothing. If the state is currently in another state machine, it is removed from that state machine and added to this one. A state type is compatible when it is decorated with UseWithStateMachineAttribute for this state machine type, or when it is defined in the same assembly as the state machine (unless StateMachineOptions.DisableAutoInclusionOfStatesFromStateMachineAssembly is set). Enclose this method with StateMachine.UndoBeginRecordStateMachine and StateMachine.UndoEndRecordStateMachine to add this operation to the undo stack and to update the graph view with the changes.