msystem.h

基于SYMBIAN OS,series 60平台的经典游戏,超级马力

///////////////////////////////////////////////////////////////////////////////
//
// MSystem.h
//
// Copyright (c) 2003 Forum Nokia.  All rights reserved.
//
// 	 Technology developed by Rocket Science Oy Ltd
//
///////////////////////////////////////////////////////////////////////////////

#ifndef __MSYSTEM_H__
#define __MSYSTEM_H__

// INCLUDE FILES
#include <e32base.h>
#include "Global.h"

// CLASS DECLARATION

/**
* MSystem is a base class for the system wide functions 
*/
class MSystem
	{
	public:

		/**
		* Virtual destructor
		*/
		virtual ~MSystem() {}
		
		/**
		* Exit the game.
		*/
		virtual void Exit() = 0;
		
		/**
		* Switch model.
		* @param aModel This model is called in next timing callback.
		*/		
		virtual void ChangeModelL( TModel aModel ) = 0;
		
		/**
		* Check The state of the key.
		* @return TBool Returns ETrue if key is pressed, otherwise EFalse.
		*/
		virtual TBool KeyState( TInt aKey ) = 0;
		
		/**
		* Get the application path.
		* @return TFileName Returns the running path of the game.
		*/
		virtual const TFileName& Path() = 0;

		/**
		* Add audio
		* @param aAudio Audio to be added.
		*/	
		virtual void AddAudio( const TDesC8& aAudio ) = 0;

		/**
		* Toggle audio on / off 
		*/	
		virtual void ToggleAudio() = 0;

		/**
		* Indicate system that model wants to exit 
		*/
		virtual void PrepareExit() = 0;
	
		/**
		* Get keycode for the Select Key 
		* return TUint8 Keycode for the Select Key
		*/
		virtual TUint8 SelectKey() = 0;

		/**
		* Get keycode for the Exit Key 
		* return TUint8 Keycode for the Exit Key
		*/		
		virtual TUint8 ExitKey() = 0;

		/**
		* Get keycode for the OK Key 
		* return TUint8 Keycode for the OK Key
		*/	
		virtual TUint8 OkKey() = 0;

		/**
		* Get keycode for the Back Key 
		* return TUint8 Keycode for the Back Key
		*/	
		virtual TUint8 BackKey() = 0;

		/**
		* Loads ingame music
		*/
		virtual void LoadMusic() = 0;
	};	

#endif

// End of file