examples/sfexamples/OandXViewArch/S60/src/oandxcontroller.cpp

/*
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  may be used to endorse or promote products derived from this software
  without specific prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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()
        {
        Engine().Reset();
        iState = ENewGame;
        iCrossTurn = EFalse;
        iLastGameResult = ETileDraw;
        }

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

// persistence

void COandXController::ExternalizeL(RWriteStream& aStream) const
        {
        aStream.WriteUint8L(iState);
        aStream.WriteInt8L(iCrossTurn);
        aStream.WriteInt8L(iLastGameResult);
        aStream.WriteUint8L(iNumGames);
        aStream.WriteUint8L(iNumNoughtWins);
        aStream.WriteUint8L(iNumCrossWins);
        for (TInt i=0; i<KNumHistoryRecords; i++)
                {
                aStream.WriteUint8L(iGameRecords[i]);
                }
        }

void COandXController::InternalizeL(RReadStream& aStream)
        {
        iState = static_cast<TState>(aStream.ReadUint8L());
        iCrossTurn = static_cast<TBool>(aStream.ReadInt8L());
        iLastGameResult = static_cast<TTileState>(aStream.ReadUint8L());
        iNumGames = aStream.ReadUint8L();
        iNumNoughtWins = aStream.ReadUint8L();
        iNumCrossWins = aStream.ReadUint8L();
        for (TInt i=0; i<KNumHistoryRecords; i++)
                {
                iGameRecords[i] = static_cast<TTileState>(aStream.ReadUint8L());
                }
        }

void COandXController::Reset()
        {
        Engine().Reset();
        iState = ENewGame;
        if (IsCrossTurn())
                {
                SwitchTurn();
                }
        switch (iLastGameResult)
                {
        case ETileNought:
                iNumNoughtWins += 1;
                break;
        case ETileCross:
                iNumCrossWins += 1;
                break;
        default:
                break;
                }
        for (TInt i=KNumHistoryRecords-1; i>0; i--)
                {
                iGameRecords[i] = iGameRecords[i-1];
                }
        iGameRecords[0]=iLastGameResult;
        iLastGameResult = ETileDraw;
        iNumGames += 1;
        }

void COandXController::ResetStats()
        {
        iNumGames=0;
        iNumNoughtWins=0;
        iNumCrossWins=0;
        for (TInt i=0; i<KNumHistoryRecords;i++)
                {
                iGameRecords[i]=ETileBlank;
                }
        }

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();
                TTileState winner = Engine().GameWonBy();
                if (winner)
                        {
                        iLastGameResult = winner;
                        iState = EFinished;
                        OandXAppUi()->ReportWinnerL(winner);
                        }
                return ETrue;
                }
        return EFalse;
        }

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

TTileState COandXController::GameRecord(TInt aIndex)
        {
        return iGameRecords[aIndex];
        }

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