internal bool SwitchToStage(Stage stage, bool setAsFirstItemAfterMainStage, Analytics.ChangeType changeTypeAnalytics)
{
if (stage == null)
{
Debug.LogError("Cannot switch to new stage. Input stage is null");
return(false);
}
bool setPreviousSelection = stage.opened;
StopAnimationPlaybackAndPreviewing();
Stage previousStage = currentStage;
if (!previousStage.AskUserToSaveModifiedStageBeforeSwitchingStage())
{
// User canceled switching stage.
// If the history contains the new stage we do not destroy it (the user
// can have clicked a previous stage in the breadcrumb bar).
if (!stageHistory.Contains(stage))
{
DestroyImmediate(stage);
}
return(false);
}
// User accepted to switch stage (and lose any data if not saved)
// Here we save current Hierarchy and SceneView stage state
beforeSwitchingAwayFromStage?.Invoke(previousStage);
// Used by the Avatar Editor to exit its editing mode before opening new stage
stageChanging?.Invoke(previousStage, stage);
// Set/Add stage in m_NavigationHistory (and detect what stages should be removed)
if (m_DebugLogging)
{
Debug.Log("Set Navigation History (setAsFirstItemAfterMainStage " + setAsFirstItemAfterMainStage);
}
var deleteStages = new List <Stage>();
if (setAsFirstItemAfterMainStage)
{
deleteStages = m_NavigationHistory.ClearHistory();
m_NavigationHistory.AddStage(stage);
}
else
{
if (m_NavigationHistory.TrySetToIndexOfItem(stage))
{
deleteStages = m_NavigationHistory.ClearForwardHistoryAfterCurrentStage();
}
else
{
deleteStages = m_NavigationHistory.ClearForwardHistoryAndAddItem(stage);
}
}
m_Analytics.ChangingStageStarted(previousStage);
if (m_DebugLogging)
{
Debug.Log("Activate new stage");
}
// Activate stage after setting up the history above so objects loaded during ActivateStage can query current stage
bool success;
try
{
if (!stage.opened)
{
stage.opened = true;
success = stage.OnOpenStage();
}
else
{
stage.OnReturnToStage();
success = stage.isValid;
}
if (success)
{
if (m_DebugLogging)
{
Debug.Log("Deactivate previous stage");
}
// Here the Hierarchy and SceneView sync's up to the new stage
stage.setSelectionAndScrollWhenBecomingCurrentStage = setPreviousSelection;
stageChanged?.Invoke(previousStage, stage);
}
}
catch (Exception e)
{
success = false;
Debug.LogError("Error while changing Stage: " + e);
}
if (success)
{
// Activation and changing stage succeeded. Now destroy removed stages
if (m_DebugLogging)
{
Debug.Log("Destroying " + deleteStages.Count + " stages");
}
// A previous existing stage can have been requested to set as the current so don't delete that
deleteStages.Remove(stage);
DeleteStagesInReverseOrder(deleteStages);
// Here we update state that relies on old scenes having been destroyed entirely.
afterSuccessfullySwitchedToStage?.Invoke(stage);
m_Analytics.ChangingStageEnded(stage, changeTypeAnalytics);
}
else
{
if (m_DebugLogging)
{
Debug.Log("Switching stage failed (" + stage + ")");
}
RecoverFromStageChangeError(previousStage, deleteStages);
}
return(success);
}
public static void GoToStage(Stage stage, bool setAsFirstItemAfterMainStage)
{
StageNavigationManager.instance.SwitchToStage(stage, setAsFirstItemAfterMainStage, StageNavigationManager.Analytics.ChangeType.Unknown);
}
