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Source/Engine/Content/Loading/Tasks/LoadAssetTask.h

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+// Copyright (c) 2012-2020 Wojciech Figat. All rights reserved.
+
+#pragma once
+
+#include "../ContentLoadTask.h"
+#include "Engine/Content/Asset.h"
+#include "Engine/Content/AssetReference.h"
+#include "Engine/Content/WeakAssetReference.h"
+#include "Engine/Profiler/ProfilerCPU.h"
+
+/// <summary>
+/// Asset loading task object.
+/// </summary>
+class LoadAssetTask : public ContentLoadTask
+{
+private:
+
+    WeakAssetReference<Asset> _asset;
+
+public:
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="LoadAssetTask"/> class.
+    /// </summary>
+    /// <param name="asset">The asset to load.</param>
+    LoadAssetTask(Asset* asset)
+        : ContentLoadTask(Type::LoadAsset)
+        , _asset(asset)
+    {
+    }
+
+public:
+
+    /// <summary>
+    /// Gets the asset.
+    /// </summary>
+    /// <returns>The asset.</returns>
+    FORCE_INLINE Asset* GetAsset() const
+    {
+        return _asset.Get();
+    }
+
+public:
+
+    // [ContentLoadTask]
+    bool HasReference(Object* obj) const override
+    {
+        return obj == _asset;
+    }
+
+protected:
+
+    // [ContentLoadTask]
+    Result run() override
+    {
+        PROFILE_CPU();
+
+        AssetReference<Asset> ref = _asset.Get();
+        if (ref == nullptr)
+            return Result::MissingReferences;
+
+        // Call loading
+        if (ref->onLoad(this))
+            return Result::AssetLoadError;
+
+        return Result::Ok;
+    }
+
+    void OnEnd() override
+    {
+        _asset.Unlink();
+
+        // Base
+        ContentLoadTask::OnEnd();
+    }
+};