IGameType.h

Go to the documentation of this file.

/**********************************************************************
 *<
    FILE: IGameType.h

    DESCRIPTION:    General definition for IGame types

    CREATED BY:     Alex Zadorozhny

    HISTORY:        05/12/2005

    IGame Version: 1.122

 *> Copyright (c) 2005, All Rights Reserved.
 **********************************************************************/

#pragma once

#include "..\maxheap.h"
#include "IGameExport.h"
#include "..\point3.h"
#include "..\matrix3.h"
// forward declarations
class Point4;


typedef float GRow[4]; 


class GMatrix : public MaxHeapOperators
{
    private:
        float m[4][4];
        friend IGAMEEXPORT Point3  operator*(const Point3& V, const GMatrix& A);
        
    public:


        Point4& operator[](int i) { return((Point4&)(*m[i]));}  
        const Point4& operator[](int i) const { return((Point4&)(*m[i])); }
        

        GRow * GetAddr(){return (GRow *)(m);}


        const GRow* GetAddr() const { return (GRow *)(m); }
        
        IGAMEEXPORT GMatrix();

        IGAMEEXPORT GMatrix(Matrix3);

        void ResetMatrix();
        

        IGAMEEXPORT BOOL IsIdentity(float epsilon = 1E-5f);

        IGAMEEXPORT void SetIdentity();

        IGAMEEXPORT float Determinant() const;

        IGAMEEXPORT GMatrix Inverse();
      
        IGAMEEXPORT Point3 Translation () const;

        IGAMEEXPORT Quat Rotation () const;

        IGAMEEXPORT Point3 Scaling () const;


        Quat ScaleRotation () const;

        IGAMEEXPORT int Parity() const;
        

        IGAMEEXPORT Point4 GetColumn(int i) const; 
        
        /*\param i The number of the column to set
        \param col Point4 containing the column to set
        */
        IGAMEEXPORT void SetColumn(int i,  Point4 col); 

        /*\param i The number of the row to retrieve
        \returns A Point4 containing the row
        */
        Point4 GetRow(int i) const { return (*this)[i]; }   

        /*\param i The number of the row to set
        \param row A Point4 containing the row
        */
        IGAMEEXPORT void SetRow(int i, Point4 row);


        IGAMEEXPORT GMatrix operator-(const GMatrix&)const;
        IGAMEEXPORT GMatrix operator*(const GMatrix&)const;
        IGAMEEXPORT GMatrix operator+(const GMatrix&)const;
        

        IGAMEEXPORT GMatrix& operator-=( const GMatrix& M);
        IGAMEEXPORT GMatrix& operator+=( const GMatrix& M); 
        IGAMEEXPORT GMatrix& operator*=( const GMatrix& M);     // Matrix multiplication
        IGAMEEXPORT GMatrix& operator*=( const float a);
        IGAMEEXPORT GMatrix& operator=(const Matrix3&);  


        IGAMEEXPORT BOOL operator==(const GMatrix& M) const;
        IGAMEEXPORT BOOL Equals(const GMatrix& M, float epsilon = 1E-5f) const;  



        IGAMEEXPORT Matrix3 ExtractMatrix3()const ;
        
};

IGAMEEXPORT Point3 operator*(const Point3& V, const GMatrix& A);