K3dMatrixWork.cpp

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/***************************************************************************
 *   Copyright (C) 2007 by Jan Koci   *
 *   honza.koci@email.cz   *
 *   http://kengine.sourceforge.net/tutorial/
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
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 *   (at your option) any later version.                                   *
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 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
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 *   Free Software Foundation, Inc.,                                       *
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 ***************************************************************************/

#include "K3dMatrixWork.h"

K3dMatrixWork::K3dMatrixWork ( K3dGameData *_pGameData )
{
        m_pGameData = _pGameData;
        // Set this pointer to the game data
        m_pGameData->SetMatrixWork ( this );
        m_pVector3Work = m_pGameData->GetVector3Work();
}

K3dMatrixWork::~K3dMatrixWork ( void )
{}

void K3dMatrixWork::RotationUpVector ( K3dMatrix &_rM, const K3dVector3Obj &_rV )
{
        K3dVector3Obj kV;
        K3dVector3Obj kUp ( 0,1,0 );
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rV;
        kV = m_pVector3Work->Normalize ( kV );
        kCross = m_pVector3Work->Cross ( kUp, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kUp );
        fAngle = acos ( fAngle );
        _rM.Rotation ( kCross, fAngle );
}

void K3dMatrixWork::RotationUpVectorGL ( K3dMatrix &_rM, const K3dVector3Obj &_rV )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kUp ( 0,1,0 );
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rV;
        kV = m_pVector3Work->Normalize ( kV );
        kCross = m_pVector3Work->Cross ( kUp, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kUp );
        fAngle = acos ( fAngle );
        _rM.RotationGL ( kCross, fAngle );
}

void K3dMatrixWork::RotationForwardVector ( K3dMatrix &_rM, const K3dVector3Obj &_rV )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kForward ( 0,0,1 );
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rV;
        kV = m_pVector3Work->Normalize ( kV );
        kCross = m_pVector3Work->Cross ( kForward, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kForward );
        fAngle = acos ( fAngle );
        _rM.Rotation ( kCross, fAngle );
}



void K3dMatrixWork::RotationForwardVectorGL ( K3dMatrix &_rM, const K3dVector3Obj &_rV )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kForward ( 0,0,1 );
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rV;
        kV = m_pVector3Work->Normalize ( kV );
        kCross = m_pVector3Work->Cross ( kForward, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kForward );
        fAngle = acos ( fAngle );
        _rM.RotationGL ( kCross, fAngle );
}



void K3dMatrixWork::RotationRightVector ( K3dMatrix &_rM, const K3dVector3Obj &_rV )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kRight ( 1,0,0 );
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rV;
        kV = m_pVector3Work->Normalize ( kV );
        kCross = m_pVector3Work->Cross ( kRight, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kRight );
        fAngle = acos ( fAngle );
        _rM.Rotation ( kCross, fAngle );
}



void K3dMatrixWork::RotationRightVectorGL ( K3dMatrix &_rM, const K3dVector3Obj &_rV )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kRight ( 1,0,0 );
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rV;
        kV = m_pVector3Work->Normalize ( kV );
        kCross = m_pVector3Work->Cross ( kRight, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kRight );
        fAngle = acos ( fAngle );
        _rM.RotationGL ( kCross, fAngle );
}



void K3dMatrixWork::RotationArbitraryVector ( K3dMatrix &_rM, const K3dVector3Obj &_rkVector,const  K3dVector3Obj &_rkArbitrary )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kArb;
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rkVector;
        kArb = _rkArbitrary;
        kV = m_pVector3Work->Normalize ( kV );
        kArb = m_pVector3Work->Normalize ( kArb );
        kCross = m_pVector3Work->Cross ( kArb, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV ,kArb );
        fAngle = acos ( fAngle );
        _rM.Rotation ( kCross, fAngle );
}


void K3dMatrixWork::RotationArbitraryVectorGL ( K3dMatrix &_rM, const K3dVector3Obj &_rkVector,const  K3dVector3Obj &_rkArbitrary )
{
        // Slave vectors
        K3dVector3Obj kV;
        K3dVector3Obj kArb;
        K3dVector3Obj kCross;
        float fAngle;

        kV = _rkVector;
        kArb = _rkArbitrary;
        kV = m_pVector3Work->Normalize ( kV );
        kArb = m_pVector3Work->Normalize ( kArb );
        kCross = m_pVector3Work->Cross ( kArb, kV );
        kCross = m_pVector3Work->Normalize ( kCross );
        fAngle = m_pVector3Work->Dot ( kV, kArb );
        fAngle = acos ( fAngle );
        _rM.RotationGL ( kCross, fAngle );
}

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