/// <summary>
/// Adds a GameObject to the dictionary of listeners in the open scenes
/// </summary>
/// <param name="levelIndex">Object's level Index</param>
/// <param name="persistentGameObject">Object to be added to the listeners dictionary</param>
public void AddGameObject(int levelIndex, PersistentGameObject persistentGameObject)
{
string objectId = persistentGameObject.ObjectId;
// if there's no scene in Data Store, add id
if (!m_listeners.ContainsKey(levelIndex))
{
m_listeners.Add(levelIndex, new Dictionary <string, PersistentGameObject>());
}
// Checks if the objects are different, but have the same ID. Create a new id
// for the newer object to avoid collision.
if (m_listeners[levelIndex].ContainsKey(objectId) && m_listeners[levelIndex][objectId] != persistentGameObject)
{
// TODO: This check is only necessary because the current GUID generation method is
// manual. Remove this after GUID generation is fixed.
persistentGameObject.ObjectId = persistentGameObject.gameObject.name + "_" + Guid.NewGuid();
objectId = persistentGameObject.ObjectId;
}
// Add object to dictionary if it's not there already
if (!m_listeners[levelIndex].ContainsKey(objectId))
{
m_listeners[levelIndex].Add(persistentGameObject.ObjectId, persistentGameObject);
}
}
/// <summary>
/// Function to load a scene, given it's buildIndex.
/// Will deserialize the ones present in scene and in save file,
/// Instantiate and deserialize the ones present in save file but not in scene
/// And destroy the ones that aren't present in save file.
/// </summary>
/// <param name="levelIndex"></param>
public bool LoadScene(int levelIndex, bool levelIndexIsSceneIndex = false)
{
var loadedScenes = SceneUtils.GetLoadedScenesAndBuildIndex();
Scene targetScene = levelIndexIsSceneIndex ? loadedScenes[levelIndex] : SceneManager.GetActiveScene();
JObject sceneSavedCache = null;
if (dataStoreCache.ContainsKey(levelIndex.ToString()))
{
sceneSavedCache = dataStoreCache[levelIndex.ToString()] as JObject;
}
var sceneObjects = m_listeners[levelIndex];
Dictionary <string, PersistentGameObject> newSceneObjects = new Dictionary <string, PersistentGameObject>();
// If there were objects in the save file cache, load them
if (sceneSavedCache != null)
{
foreach (var savedObject in sceneSavedCache)
{
string objectId = savedObject.Key;
JObject objectJsonRepresentation = savedObject.Value as JObject;
// if object is present in scene, deserialize it
if (sceneObjects.ContainsKey(objectId))
{
sceneObjects[objectId].FromJson(objectJsonRepresentation);
newSceneObjects.Add(objectId, sceneObjects[objectId]);
}
// if not present in scene, instantiate and load it
else
{
var persistentGO = saveManager.PrefabManager.InstantiatePrefab(objectId, objectJsonRepresentation);
if (persistentGO != null)
{
PersistentGameObject persistentGameObjectComponent = persistentGO.GetComponent <PersistentGameObject>();
AddGameObject(levelIndex, persistentGameObjectComponent);
SceneManager.MoveGameObjectToScene(persistentGO, targetScene);
newSceneObjects.Add(persistentGameObjectComponent.ObjectId, persistentGameObjectComponent);
}
}
sceneObjects.Remove(objectId);
}
// Objects left are not present in save file, so they must be deleted from scene
// and removed from save file
foreach (var sceneObject in sceneObjects)
{
GameObject.Destroy(sceneObject.Value.gameObject);
}
m_listeners[levelIndex] = newSceneObjects;
return(true);
}
return(false);
}
/// <summary>
/// Removes a gameobject from the scene listener dictionary.
/// </summary>
/// <param name="levelIndex">Object's level Index</param>
/// <param name="persistentGameObject">Object to be removed</param>
/// <returns>True if it was removed. False otherwise</returns>
public bool RemoveGameObject(int levelIndex, PersistentGameObject persistentGameObject)
{
if (m_listeners.ContainsKey(levelIndex) &&
m_listeners[levelIndex].ContainsKey(persistentGameObject.ObjectId))
{
bool removed = m_listeners[levelIndex].Remove(persistentGameObject.ObjectId);
if (m_listeners[levelIndex].Count == 0)
{
m_listeners.Remove(levelIndex);
}
return(removed);
}
return(false);
}