using System;

using System.Collections;

using UnityEngine;

namespace uFrame.Kernel

{

public abstract class SceneLoader<T> : uFrameComponent, ISceneLoader where T : IScene

{

public virtual Type SceneType

{

get { return typeof (T); }

}

/// <summary>

/// The type of scene that this loader is for. This is used by the kernel to link link it to the

/// scene type when the "SceneAwakeEvent" is invoked.

/// </summary>

/// <param name="scene">The scene component that is at the root of the scene.</param>

/// <param name="progressDelegate">The progress delegate for providing user feedback on long running actions.</param>

/// <returns></returns>

protected abstract IEnumerator LoadScene(T scene, Action<float, string> progressDelegate);

/// <summary>

///

/// </summary>

/// <param name="scene">The scene component that is at the root of the scene.</param>

/// <param name="progressDelegate">The progress delegate for providing user feedback on long running actions.</param>

/// <returns></returns>

protected abstract IEnumerator UnloadScene(T scene, Action<float, string> progressDelegate);

public IEnumerator Load(object sceneObject, Action<float, string> progressDelegate)

{

return LoadScene((T) sceneObject, progressDelegate);

}

public IEnumerator Unload(object sceneObject, Action<float, string> progressDelegate)

{

return UnloadScene((T) sceneObject, progressDelegate);

}

}

/// <summary>

///

/// </summary>

public class DefaultSceneLoader : SceneLoader<IScene>

{

public override Type SceneType

{

get { return typeof (IScene); }

}

protected override IEnumerator LoadScene(IScene scene, Action<float, string> progressDelegate)

{

yield break;

}

protected override IEnumerator UnloadScene(IScene scene, Action<float, string> progressDelegate)

{

yield break;

}

//public IEnumerator Load(object sceneObject, Action<float, string> progressDelegate)

//{

// return LoadScene((IScene)sceneObject, progressDelegate);

//}

//public IEnumerator Unload(object sceneObject, object settings, Action<float, string> progressDelegate)

//{

// return UnloadScene((IScene)sceneObject, progressDelegate);

//}

}

}