examples/SFExamples/games_on_symbian_os_code/oandx/src/oandxcontroller.cpp

// 
// 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:
// 

#include <eikenv.h>
#include <eiklabel.h>
#include <s32mem.h>

#include "oandxcontroller.h"
#include "oandxengine.h"
#include "oandxappui.h"
#include "oandxdefs.h"

COandXController* COandXController::NewL()
        {
        COandXController* self=new(ELeave) COandXController;
        CleanupStack::PushL(self);
        self->ConstructL();
        CleanupStack::Pop();
        return self;
        }

void COandXController::ConstructL()
        {
        Reset();
        }

COandXController::~COandXController()
        {
        // empty.
        }

// persistence

void COandXController::ExternalizeL(RWriteStream& aStream) const
        {
        aStream.WriteUint8L(iState);
        aStream.WriteInt8L(iCrossTurn);
        }

void COandXController::InternalizeL(RReadStream& aStream)
        {
        iState = static_cast<TState>(aStream.ReadUint8L());
        iCrossTurn = static_cast<TBool>(aStream.ReadInt8L());
        }

void COandXController::Reset()
        {
        Engine().Reset();
        iState = ENewGame;
        if (IsCrossTurn())
                {
                SwitchTurn();
                }
        }

TBool COandXController::HitSquareL(TInt aIndex)
        {
        // For Comms, replace this with another function, called
        // when a tile is selected. It should refuse to accept
        // the hit if it is not my move.
        // Add another function, called when the opponent makes a
        // move, and both can call this funtion (renamed from
        // HitSquareL) The logic will need to be modified to handle 
        // the additional comms states and to report which of the
        // two players wins the game (or when the game is drawn).
        if (iState == EFinished)
                {
                return EFalse;
                }
        if (iState == ENewGame)
                {
                iState = EPlaying;
                }
        if (Engine().TryMakeMove(aIndex,IsCrossTurn()))
                {
                SwitchTurn();
                TInt winner = Engine().GameWonBy();
                if (winner)
                        {
                        iState = EFinished;
                        OandXAppUi()->ReportWinnerL(winner);
                        }
                return ETrue;
                }
        return EFalse;
        }

void COandXController::SwitchTurn()
        {
        iCrossTurn = !iCrossTurn;
        OandXAppUi()->ReportWhoseTurn();
        }

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