IEnumerator DownloadAndCacheModel(string modelUrl, GameObject attachTo, LoadingAnimator loadingAnimator, PostLoadCallback callback)
{
// Wait for the Caching system to be ready
while (!Caching.ready)
{
yield return(null);
}
// Load the AssetBundle file from Cache if it exists with the same version or download and store it in the cache
Debug.Log("Downloading - " + modelUrl);
using (WWW www = WWW.LoadFromCacheOrDownload(modelUrl, 1)) {
// Cancel WWW if it exceeds timeout
float downloadStartTime = Time.realtimeSinceStartup;
bool requestCancelled = false;
// Start animation
if (loadingAnimator != null)
{
loadingAnimator.StartPlaying();
loadingAnimator.JumpTo(0.0f);
}
while (!www.isDone)
{
float elapsedTime = Time.realtimeSinceStartup - downloadStartTime;
if (elapsedTime == 0)
{
elapsedTime = 0.1f;
}
if (elapsedTime > Constants.TIMEOUT)
{
Debug.LogWarning("Model download timeout!");
requestCancelled = true;
break;
}
Debug.Log("Still downloading... " + www.progress + "," + elapsedTime);
// Animate loading
if (loadingAnimator != null)
{
loadingAnimator.JumpTo(www.progress);
}
yield return(new WaitForEndOfFrame());
}
// Once download is complete
if (requestCancelled)
{
Debug.LogWarning("Request cancelled");
StopCoroutine("DownloadAndCacheAsset");
// Do nothing
}
else
{
yield return(www);
if (www.error != null)
{
Debug.LogWarning("WWW download had an error:" + modelUrl + ":" + www.error);
if (callback != null)
{
callback(null);
}
}
else
{
AssetBundle bundle = www.assetBundle;
Debug.Log("Downloaded bundle - " + modelUrl);
// Load the object asynchronously
AssetBundleRequest request = bundle.LoadAssetAsync(bundle.GetAllAssetNames()[0], typeof(GameObject));
// Wait for completion
yield return(request);
// Get the reference to the loaded object
GameObject prefab = request.asset as GameObject;
GameObject model = (GameObject.Instantiate(prefab));
model.transform.SetParent(attachTo.transform);
model.transform.rotation = attachTo.transform.rotation;
attachTo.transform.position = new Vector3(0, 0, 0);
model.transform.position = new Vector3(0, 0, 0);
attachTo.transform.localPosition = new Vector3(0, 0, 0);
model.transform.localPosition = new Vector3(0, 0, 0);
// Need to rotate all models by 180.
model.transform.Rotate(0, 180, 0);
BoxCollider collider = model.GetComponent <BoxCollider>();
BoxCollider newCollider = attachTo.AddComponent <BoxCollider>();
newCollider.center = collider.center;
newCollider.size = collider.size;
GameObject.Destroy(collider);
// Re-assign shaders to materials found on the model
Shader glassShader = Shader.Find(WAYFAIR_SHADER_GLASS);
Shader specularShader = Shader.Find(WAYFAIR_SHADER_SPECULAR);
Renderer renderer;
// Go through all sub meshes
if (model.transform.childCount > 0)
{
for (int i = 0; i < model.transform.childCount; i++)
{
GameObject subModel = model.transform.GetChild(i).gameObject;
renderer = subModel.GetComponent <Renderer>() as Renderer;
if (renderer)
{
if (GLASS_MESH_NAME_V1.Match(renderer.name).Success)
{
renderer.sharedMaterial.shader = glassShader;
}
else if (OPAQUE_MESH_NAME_V1.Match(renderer.name).Success)
{
renderer.sharedMaterial.shader = specularShader;
}
else if (SHADOW_MESH_NAME_V5.Match(renderer.name).Success)
{
renderer.sharedMaterial.shader = Shader.Find(SHADOW_PLANE_SHADER);
}
}
// Go one level deeper since Unity may have broken down meshes > 65k
else
{
for (int j = 0; j < subModel.transform.childCount; j++)
{
renderer = subModel.transform.GetChild(j).gameObject.GetComponent <Renderer>() as Renderer;
if (renderer)
{
if (GLASS_MESH_NAME_V1.Match(renderer.name).Success)
{
renderer.sharedMaterial.shader = glassShader;
foreach (Material material in renderer.materials)
{
material.shader = glassShader;
}
}
else if (OPAQUE_MESH_NAME_V1.Match(renderer.name).Success)
{
renderer.sharedMaterial.shader = specularShader;
}
}
}
}
}
}
if (loadingAnimator != null)
{
loadingAnimator.JumpTo(1); // Update the animation to the last frame
}
if (callback != null)
{
callback(attachTo);
}
// Unload the AssetBundles compressed contents to conserve memory
bundle.Unload(false);
}
}
} // memory is freed from the web stream (www.Dispose() gets called implicitly)
}
void IShop.OnLoadingStarted()
{
LoadingAnimator.SetBool("Visible", true);
}
/// <summary>
/// Loads a model from Wayfair and adds it to scene
/// </summary>
/// <param name="modelUrl">Model URL - The URL of the model file</param>
/// <param name="attachTo">Attach to - The GameObject you want to attach this model to in your scene</param>
/// <param name="loadingAnimator">Loading animator - The loading animator to show download progress of the model</param>
/// <param name="callback">Callback - Callback that is called when model loading is done</param>
public void LoadModel(string modelUrl, GameObject attachTo, LoadingAnimator loadingAnimator, PostLoadCallback callback)
{
StartCoroutine(DownloadAndCacheModel(modelUrl, attachTo, loadingAnimator, callback));
}
void IShop.OnLoadingFinished()
{
LoadingAnimator.SetBool("Visible", false);
}