86 lines
3.2 KiB
C#
86 lines
3.2 KiB
C#
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#if UNITY_EDITOR
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.IO;
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using UnityEngine.ResourceManagement.AsyncOperations;
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using UnityEngine.ResourceManagement.ResourceLocations;
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using UnityEngine.ResourceManagement.Util;
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namespace UnityEngine.ResourceManagement.ResourceProviders.Simulation
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{
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/// <summary>
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/// Custom version of AssetBundleRequestOptions used to compute needed download size while bypassing the cache. In the future a virtual cache may be implemented.
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/// </summary>
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[Serializable]
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public class VirtualAssetBundleRequestOptions : AssetBundleRequestOptions
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{
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/// <inheritdoc/>
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public override long ComputeSize(IResourceLocation location, ResourceManager resourceManager)
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{
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var id = resourceManager == null ? location.InternalId : resourceManager.TransformInternalId(location);
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if (!ResourceManagerConfig.IsPathRemote(id))
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return 0;
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return BundleSize;
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}
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}
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/// <summary>
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/// Provides assets from virtual asset bundles. Actual loads are done through the AssetDatabase API.
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/// </summary>
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[DisplayName("Assets from Virtual Bundles")]
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public class VirtualBundledAssetProvider : ResourceProviderBase
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{
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/// <summary>
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/// Default copnstructor.
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/// </summary>
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public VirtualBundledAssetProvider()
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{
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m_ProviderId = typeof(BundledAssetProvider).FullName;
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}
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class InternalOp
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{
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VBAsyncOperation<object> m_RequestOperation;
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ProvideHandle m_PI;
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public void Start(ProvideHandle provideHandle, VirtualAssetBundle bundle)
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{
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m_PI = provideHandle;
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provideHandle.SetWaitForCompletionCallback(WaitForCompletionHandler);
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m_RequestOperation = bundle.LoadAssetAsync(m_PI, m_PI.Location);
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m_RequestOperation.Completed += RequestOperation_Completed;
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}
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private bool WaitForCompletionHandler()
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{
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return m_RequestOperation.WaitForCompletion();
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}
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private void RequestOperation_Completed(VBAsyncOperation<object> obj)
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{
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bool success = (obj.Result != null && m_PI.Type.IsAssignableFrom(obj.Result.GetType())) && obj.OperationException == null;
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m_PI.Complete(obj.Result, success, obj.OperationException);
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}
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public float GetPercentComplete() { return m_RequestOperation != null ? m_RequestOperation.PercentComplete : 0.0f; }
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}
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public override void Provide(ProvideHandle provideHandle)
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{
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List<object> deps = new List<object>(); // TODO: garbage. need to pass actual count and reuse the list
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provideHandle.GetDependencies(deps);
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VirtualAssetBundle bundle = deps[0] as VirtualAssetBundle;
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if (bundle == null)
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{
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provideHandle.Complete<object>(null, false, new Exception($"Unable to load asset of type {provideHandle.Type} from location {provideHandle.Location}."));
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}
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else
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{
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new InternalOp().Start(provideHandle, bundle);
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}
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}
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}
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}
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#endif
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