// Renderer.h: interface for the CRenderer class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_RENDERER_H__BFD9A961_9F50_11D4_A9EA_00105A2EAD2D__INCLUDED_)
#define AFX_RENDERER_H__BFD9A961_9F50_11D4_A9EA_00105A2EAD2D__INCLUDED_

#include "smartptr.h"

#include "Camera.h"	// Added by ClassView

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/**
 * This is the base class for a scene.
 *
 * A scene describes everything on the screen and processes the user
 * input. A menu for example will print various options, highlight the
 * active choice and scroll down/up if the user presses the arrow keys.
 *
 * Every scene will be created by CView. First "Init()" is called which
 * should be used to initialize all objects. Derive a class from CModel and 
 * CText to create your own objects and overwrite the "Draw()" function to
 * colorize/texturize and position your models. 
 *
 * "Update()" is called when the next frame of the scene. 
 * should be shown. Do all drawing and input processing here. Please note
 * that you shouldn't rely on a constant framerate, better use your own
 * timer.
 *
 * If the size of the window changes, "Resize()" will be called.
 */
class CScene  
{
public:
	/// pure virtual function to process the user input. MUST be overwritten!
	virtual void ProcessInput() = 0;
	/// pure virtual function to process the next frame (draw screen and process input)
	virtual void Update() = 0;
	/// initialize the scene
	virtual bool Init();
	/// clear the screen
	void Clear();
	/// window was resized
	void Resize();

	/// constructor
	CScene();
	/// destructor
	virtual ~CScene();

protected:
	RefCountPtr<CCamera> pCamera;
};

#endif // !defined(AFX_RENDERER_H__BFD9A961_9F50_11D4_A9EA_00105A2EAD2D__INCLUDED_)