StateMachineChanges

Description

The set of changes to a state machine reported to StateMachine.OnStateMachineChanged in a single change event.

Access this through StateMachineLogger.StateMachineChanges inside StateMachine.OnStateMachineChanged. Inspect StateMachineChanges.ChangedStates, StateMachineChanges.ChangedTransitions, StateMachineChanges.ChangedVariables, and StateMachineChanges.ChangedSubgraphStates to react to what was added or modified. Each entry's ChangeKinds property is a set of ChangeKind bit-flags describing the categories of change that apply.

 public override void OnStateMachineChanged(StateMachineLogger stateMachineLogger)
 {
     StateMachineChanges changes = stateMachineLogger.StateMachineChanges;

     foreach (ChangedState changedState in changes.ChangedStates)
     {
         if ((changedState.ChangeKinds & ChangeKind.Added) != 0)
             Debug.Log($"State added: {changedState.State.Title}");

         if ((changedState.ChangeKinds & ChangeKind.Topology) != 0 && !changedState.State.IsConnected)
             stateMachineLogger.LogWarning("This state has no transitions.", changedState.State);
     }

     foreach (ChangedTransition changedTransition in changes.ChangedTransitions)
     {
         // Rule and condition edits arrive as ChangeKind.Data on the owning transition.
         if ((changedTransition.ChangeKinds & ChangeKind.Data) == 0)
             continue;

         foreach (ITransitionRule rule in changedTransition.Transition.GetRules())
             Debug.Log($"Rule updated: {rule.Title}");
     }

     foreach (ChangedVariable changedVariable in changes.ChangedVariables)
         Debug.Log($"Variable changed: {changedVariable.Variable.Name} ({changedVariable.ChangeKinds})");

     foreach (ChangedSubgraphState changedSubgraphState in changes.ChangedSubgraphStates)
         Debug.Log($"Subgraph state changed: {changedSubgraphState.SubgraphState.Title}");
 }

Properties