examples/SFExamples/games_on_symbian_os_code/vibrapool/inc/moveball.h

// 
// Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of the License "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
// 
// Initial Contributors:
// Nokia Corporation - initial contribution.
// 
// Contributors:
// 
// Description:  Class to animate the pool ball on the pool table.
// 
// 


#ifndef __MOVEBALL_H__
#define __MOVEBALL_H__

#include <e32base.h>
#include <coecntrl.h>

// Observer class to update the screen container
class MUpdateContainer
        {
        public:
                virtual void UpdateScreen() = 0;
        };
        
// Asynchronous class based on a timer to facilitate the animation of the ball.
class CMoveBall : public CTimer
        {
        // Constructors
        public:
                static CMoveBall* NewL(MUpdateContainer&);
                CMoveBall(MUpdateContainer&);
                ~CMoveBall();
        private:        
                void ConstructL();
        
        // Animation controlers.
        public:
                void StartMovingBall();
                void StopMoveBall();
        
        // Pure virtual functions from CTImer
        private:
                void RunL();
                void DoCancel();
        
        // Member variables
        private:
                TPoint iLoc;                                    // Ball location on screen
                MUpdateContainer& iUpdater;             // Screen call back controller
        };
        
#endif
        

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