/// Coroutine to handle transitioning to a scene with a transition screen
///
/// @param sceneLoadOperation
/// AsyncOperation for the scene loading
/// @param transitionView
/// SceneTransitionView to use as the transition screen
/// @param [optional] callback
/// Function to call when the transiton is done
///
private IEnumerator StartTransition(AsyncOperation sceneLoadOperation, SceneTransitionView transitionView, Action callback = null)
{
sceneLoadOperation.allowSceneActivation = false;
if (transitionView != null)
{
yield return(GlobalDirector.ExecuteCoroutine(transitionView.Show()));
}
sceneLoadOperation.allowSceneActivation = true;
yield return(new WaitUntil(() => sceneLoadOperation.isDone));
LocalDirector[] localDirectors = GameObject.FindObjectsOfType <LocalDirector>();
foreach (LocalDirector localDirector in localDirectors)
{
yield return(new WaitUntil(() => localDirector.IsReady()));
}
callback.SafeInvoke();
OnSceneActive.SafeInvoke(GetActiveScene());
if (transitionView != null)
{
yield return(GlobalDirector.ExecuteCoroutine(transitionView.Hide()));
}
}
/// @param sceneName
/// Name of the scene to switch to
/// @param transitionPrefabName
/// Name of the prefab inside the default transition folder to use for the transition screen
/// @param [optional] callback
/// Function to call when the transiton is done
///
public void SwitchToScene(string sceneName, string transitionPrefabName, Action callback = null)
{
m_scenes.Clear();
AsyncOperation loadSceneOperation = SceneManager.LoadSceneAsync(sceneName);
SceneTransitionView transitionView = CreateTransitionView(transitionPrefabName);
GlobalDirector.ExecuteCoroutine(StartTransition(loadSceneOperation, transitionView, callback));
}
/// @param transitionPrefabName
/// Name of the transition prefab to load and instantiate
///
/// @return The SceneTransitionView of the transitionUI object
///
private SceneTransitionView CreateTransitionView(string transitionPrefabName)
{
SceneTransitionView transitionView = null;
string fullPath = k_pathTransitionUI + transitionPrefabName;
var transitionUIPrefab = Resources.Load(fullPath) as GameObject;
if (transitionUIPrefab == null)
{
Debug.LogError(string.Format("Failed to load transition UI at '{0}'", fullPath));
}
else
{
var transitionObject = GameObject.Instantiate(transitionUIPrefab);
GameObject.DontDestroyOnLoad(transitionObject);
transitionObject.SetActive(false);
transitionView = transitionObject.GetComponent <SceneTransitionView>();
var canvas = transitionObject.GetComponent <Canvas>();
canvas.sortingOrder = k_defaultCanvasSortOrder;
}
return(transitionView);
}
