/// <summary>
/// Constructor for convenience
/// </summary>
internal LoadAsyncParams(string name, AssetLoaded loadedMethod) {
ItemLoadedMethods.Add(loadedMethod);
Tracker = new AssetTracker();
Tracker.AssetName = name;
Tracker.RefCount = 1;
Tracker.Status = EAssetStatus.Loading;
}
/// <summary>
/// Asyncronously loads the specified asset
/// </summary>
/// <param name="assetName">Name of asset to laod</param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <returns>AssetTracker of asset to be loaded. Allows to poll the asset status if desired</returns>
public AssetTracker LoadAsync(string assetName, AssetLoaded itemLoadedMethod, AssetLoadedHandler Callback) {
AssetTracker tracker = null;
// Check if asset is already loaded
if (mCache.ContainsKey(assetName)) {
tracker = mCache[assetName];
// Increment reference count
tracker.RefCount++;
// Call the specified item loaded method
if (itemLoadedMethod != null)
itemLoadedMethod(tracker.Asset);
} else {
if (mLoadThread == null) {
// First time LoadAsync has been called so
// initialise thread, reset event and queue
mLoadThread = new Thread(new ThreadStart(LoadingThreadWorker));
mLoadItemsQueue = new Queue<LoadAsyncParams>();
mLoadResetEvent = new AutoResetEvent(false);
// Start thread. It will wait once queue is empty
mLoadThread.Start();
}
// Create the async argument structure and enqueue it for async load.
lock (mLoadItemsQueue) {
// first check if this item is already enqueued
Queue<LoadAsyncParams>.Enumerator enumer = mLoadItemsQueue.GetEnumerator();
while (enumer.MoveNext()) {
if (enumer.Current.Tracker.AssetName == assetName) {
// Register the itemLoaded method
enumer.Current.ItemLoadedMethods.Add(itemLoadedMethod);
tracker = enumer.Current.Tracker;
tracker.RefCount++;
break;
}
}
// Item not already queued for loading
if (tracker == null) {
LoadAsyncParams args = new LoadAsyncParams(assetName, itemLoadedMethod);
tracker = args.Tracker;
mLoadItemsQueue.Enqueue(args);
}
}
// Tell loading thread to stop waiting
mLoadResetEvent.Set();
}
tracker.OnAssetLoaded = Callback;
// Return tracker. Allows async caller to poll loaded status
return tracker;
}
private IEnumerator LoadAsset(string assetPath, string assetBundle, AssetLoaded callback)
{
if (string.IsNullOrEmpty(assetBundle)) {
// Then we wanna load a prefab from resources instead.
yield return StartCoroutine(LoadAssetFromResources(assetPath, callback));
}
else {
if (assetManager.HasAssetBundle(assetBundle)) {
yield return StartCoroutine(LoadAssetFromBundle(assetPath, assetBundle, callback));
}
WWW www = new WWW("file://" + Application.streamingAssetsPath + "/" + assetBundle + ".bundle");
yield return www;
assetManager.AddAssetBundle(assetBundle, www.assetBundle);
yield return StartCoroutine(LoadAssetFromBundle(assetPath, assetBundle, callback));
}
}
public override void Load(AssetLoaded <T> callback = null)
{
try
{
if (!waiting)
{
Logger.Log(String.Format("Updating WebXMLFileAsset {0} from {1}", typeof(T).Name, url));
waiting = true;
webclient.DownloadStringCompleted += (object sender, System.Net.DownloadStringCompletedEventArgs e) =>
{
TaskDispatcher.QueueOnMainThread(() =>
{
using (StringReader reader = new StringReader(e.Result))
{
try
{
T result = (T)serializer.Deserialize(reader);
instance = result;
if (callback != null)
{
callback(this);
}
}
catch (Exception ex)
{
Logger.LogError("Error retrieving WebXMLFileAsset: " + ex.Message);
callback(this);
}
}
waiting = false;
});
};
webclient.DownloadStringAsync(url);
}
}
catch (Exception ex)
{
throw new Exception(String.Format("Failed to deserialize WebXMLFileAsset: {0}", url), ex);
}
}
public override void Load(AssetLoaded <T> callback = null)
{
try
{
if (!string.IsNullOrEmpty(file) && File.Exists(file))
{
using (StreamReader reader = new StreamReader(file))
{
instance = (T)serializer.Deserialize(reader);
}
}
Save();
if (callback != null)
{
callback(this);
}
}
catch (Exception ex)
{
throw new Exception(string.Format("Failed to deserialize XMLFileAsset: {0}", file), ex);
}
}
public virtual void Load(AssetLoaded <T> callback = null)
{
callback(this);
}
public WebXMLFileAsset(Uri url = null, XmlRootAttribute attr = null, AssetLoaded <T> callback = null)
{
serializer = new XmlSerializer(typeof(T), attr);
this.url = url;
Load(callback);
}
/// <summary>
/// Asyncronously loads the specified asset List
/// </summary>
/// <param name="assetNames">Names of assets to laod</param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <returns>AssetTracker List of assets to be loaded. Allows to poll the asset status if desired</returns>
public List<AssetTracker> LoadAsync(List<string> assetNames, AssetLoaded itemLoadedMethod, AssetLoadedHandler Callback) {
return new List<AssetTracker>(LoadAsync(assetNames.ToArray(), itemLoadedMethod, Callback));
}
/// <summary>
/// Asyncronously loads the specified asset array
/// </summary>
/// <param name="assetNames">Names of assets to laod</param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <returns>AssetTracker array of assets to be loaded. Allows to poll the asset status if desired</returns>
public AssetTracker[] LoadAsync(string[] assetNames, AssetLoaded itemLoadedMethod, AssetLoadedHandler Callback) {
AssetTracker[] assets = new AssetTracker[assetNames.Length];
for (int i = 0; i < assets.Length; i++)
assets[i] = LoadAsync(assetNames[i], itemLoadedMethod, Callback);
return assets;
}
/// <summary>
/// Asyncronously loads the specified asset List
/// </summary>
/// <param name="assetNames">Names of assets to laod</param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <returns>AssetTracker List of assets to be loaded. Allows to poll the asset status if desired</returns>
public List <AssetTracker> LoadAsync(List <string> assetNames, AssetLoaded itemLoadedMethod, AssetLoadedHandler Callback)
{
return(new List <AssetTracker>(LoadAsync(assetNames.ToArray(), itemLoadedMethod, Callback)));
}
/// <summary>
/// Asyncronously loads the specified asset
/// </summary>
/// <typeparam name="T">Generic type parameter</typeparam>
/// <param name="assetName">Name of asset to laod</param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <returns>AssetTracker of asset to be loaded. Allows
/// users to poll the asset status if desired</returns>
public AssetTracker LoadAsync <T>(string assetName, AssetLoaded itemLoadedMethod)
{
AssetTracker tracker = null;
// Check if asset is already loaded
if (loadedAssets.ContainsKey(assetName))
{
tracker = loadedAssets[assetName];
// Increment reference count
tracker.RefCount++;
// Call the specified item loaded method
if (itemLoadedMethod != null)
{
itemLoadedMethod(tracker.Asset);
}
}
else
{
if (loadThread == null)
{
// First time LoadAsync has been called so
// initialise thread, reset event and queue
loadThread = new Thread(new ThreadStart(LoadingThreadWorker));
loadItemsQueue = new Queue <LoadAsyncParams>();
loadResetEvent = new AutoResetEvent(false);
// Start thread. It will wait once queue is empty
loadThread.Start();
}
// Create the async argument structure and enqueue it for async load.
lock (loadItemsQueue)
{
// first check if this item is already enqueued
Queue <LoadAsyncParams> .Enumerator enumer = loadItemsQueue.GetEnumerator();
while (enumer.MoveNext())
{
if (enumer.Current.Tracker.AssetName == assetName)
{
// Register the itemLoaded method
enumer.Current.ItemLoadedMethods.Add(itemLoadedMethod);
tracker = enumer.Current.Tracker;
tracker.RefCount++;
break;
}
}
// Item not already queued for loading
if (tracker == null)
{
LoadAsyncParams args = new LoadAsyncParams(typeof(T), assetName, itemLoadedMethod);
tracker = args.Tracker;
loadItemsQueue.Enqueue(args);
}
}
// Tell loading thread to stop waiting
loadResetEvent.Set();
}
// Return tracker. Allows async caller to poll loaded status
return(tracker);
}
public WebXMLFileAsset(Uri url = null, XmlRootAttribute attr = null, AssetLoaded <T> callback = null)
{
this.url = url;
this.attr = attr;
Load(callback);
}
private IEnumerator LoadAssetFromResources(string assetPath, AssetLoaded callback)
{
var request = Resources.LoadAsync(assetPath);
yield return request;
callback(request.asset);
}
private IEnumerator LoadAssetFromBundle(string assetPath, string assetBundle, AssetLoaded callback)
{
var request = assetManager.GetAssetBundle(assetBundle).LoadAssetAsync(assetPath);
yield return request;
callback(request.asset);
}
public virtual void Load(AssetLoaded <T> callback = null, bool update = false)
{
callback(this);
}
/// <summary>
/// Asyncronously loads the specified asset List
/// </summary>
/// <param name="filenames"></param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <param name="callback"></param>
/// <returns>AssetTracker List of assets to be loaded. Allows to poll the asset status if desired</returns>
public List <AssetTracker> LoadAsync(List <string> filenames, AssetLoaded itemLoadedMethod, AssetLoadedHandler callback)
{
return(mExtendedContentManager.LoadAsync(filenames, itemLoadedMethod, callback));
}
/// <summary>
/// Asyncronously loads the specified asset array
/// </summary>
/// <param name="filenames"></param>
/// <param name="itemLoadedMethod">Method to call once load is completed</param>
/// <param name="callback"></param>
/// <returns>AssetTracker array of assets to be loaded. Allows to poll the asset status if desired</returns>
public AssetTracker[] LoadAsync(string[] filenames, AssetLoaded itemLoadedMethod, AssetLoadedHandler callback)
{
return(mExtendedContentManager.LoadAsync(filenames, itemLoadedMethod, callback));
}
private void View_ScriptNotify(object sender, NotifyEventArgs e)
{
var key = e.Value.Substring(0, 4);
var value = e.Value.Substring(4);
switch (key)
{
// Loading assets
case "LOAD":
{
AssetLoading?.Invoke(this, EventArgs.Empty);
break;
}
// Assets loaded
case "LODD":
{
_view.Opacity = 1;
AssetLoaded?.Invoke(this, EventArgs.Empty);
break;
}
// Camera alpha angle in radians
case "ALPH":
{
AlphaInDegrees = GetDegreeFromRadian(double.Parse(value));
break;
}
// Camera beta angle in radians
case "BETA":
{
BetaInDegrees = GetDegreeFromRadian(double.Parse(value));
break;
}
// Camera radius
case "RADI":
{
RadiusPercentage = double.Parse(value);
break;
}
// Animations are supported
case "ANIM":
{
if (_commandGrid == null)
{
return;
}
_commandGrid.Visibility = Visibility.Visible;
var animationNames = value.Split(',');
if (_animationList != null)
{
_animationList.Items.Clear();
foreach (var animName in animationNames)
{
_animationList.Items.Add(animName);
}
_animationList.SelectedIndex = 0;
_playSymbol.Visibility = Visibility.Collapsed;
_pauseSymbol.Visibility = Visibility.Visible;
}
break;
}
// No animation
case "NANM":
{
if (_commandGrid != null)
{
_commandGrid.Visibility = Visibility.Collapsed;
}
break;
}
// Current animation frame
case "FRAM":
{
if (_animationSlider == null || !_sliderLayoutUpdated)
{
return;
}
var position = Math.Min(1, Math.Max(0, double.Parse(value)));
// Making sure we are not overwhelming the system
_sliderLayoutUpdated = false;
_lastValueSetFromAnimation = position * 99.0;
_animationSlider.Value = _lastValueSetFromAnimation;
break;
}
}
}
