Add JsonAsset::GetInstance<T> for easier access to C++ json asset data

Source/Engine/Content/JsonAsset.cpp

@@ -15,6 +15,7 @@
 #include "Engine/Serialization/JsonTools.h"
 #include "Engine/Content/Factories/JsonAssetFactory.h"
 #include "Engine/Core/Cache.h"
+#include "Engine/Core/Config/GameSettings.h"
 #include "Engine/Debug/Exceptions/JsonParseException.h"
 #include "Engine/Profiler/ProfilerCPU.h"
 #include "Engine/Scripting/Scripting.h"

Source/Engine/Content/JsonAsset.h

@@ -93,6 +93,16 @@ public:
     /// </summary>
     void* Instance;
 
+    /// <summary>
+    /// Gets the deserialized native object instance of the given type. Returns null if asset is not loaded or loaded object has different type.
+    /// </summary>
+    /// <returns>The asset instance object or null.</returns>
+    template<typename T>
+    T* GetInstance() const
+    {
+        return Instance && InstanceType.IsAssignableFrom(T::TypeInitializer) ? (T*)Instance : nullptr;
+    }
+
 protected:
 
     // [JsonAssetBase]