123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
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/*******************************************************************************
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* DXVector.h *
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*------------*
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* Description:
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* This is the header file for the vector helper classes.
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*
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*******************************************************************************/
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#ifndef DXVector_h
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#define DXVector_h
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//=== Constants ====================================================
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//=== Class, Struct and Union Definitions ==========================
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/*** CDXVec ************
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* This template implements basic vector operations for each of the
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* union types
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*/
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#define CDXV_C CDXVec<TYPE, eBndType>
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#define CDXV_T ((TYPE*)u.D)
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#define CDXV_O( OtherVec ) ((TYPE*)OtherVec.u.D)
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template<class TYPE, DXBNDTYPE eBndType>
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class CDXVec : public DXVEC
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{
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/*=== Methods =======*/
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public:
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/*--- Constructors ---*/
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CDXVec() { eType = eBndType; ZeroVector(); }
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CDXVec(BOOL bInit) { eType = eBndType; if (bInit) ZeroVector(); }
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CDXVec( TYPE x, TYPE y, TYPE z, TYPE t )
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{ eType = eBndType; CDXV_T[DXB_X] = x; CDXV_T[DXB_Y] = y;
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CDXV_T[DXB_Z] = z; CDXV_T[DXB_T] = t; }
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CDXVec( const CDXVec& Other ) { memcpy( this, (void *)&Other, sizeof(DXVEC) ); }
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CDXVec( const DXVEC Other ) { memcpy( this, &Other, sizeof(DXVEC) ); }
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operator TYPE *() { return CDXV_T; }
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operator const TYPE *() { return CDXV_T; }
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/*--- operations ---*/
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void ZeroVector( void ) { memset( u.D, 0, sizeof(TYPE) * 4); }
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/*--- operators ---*/
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TYPE& operator[]( int index ) const { return CDXV_T[index]; }
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TYPE& operator[]( long index ) const { return CDXV_T[index]; }
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TYPE& operator[]( USHORT index ) const { return CDXV_T[index]; }
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TYPE& operator[]( DWORD index ) const { return CDXV_T[index]; }
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CDXV_C operator+(const CDXV_C& v);
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CDXV_C operator-(const CDXV_C& v);
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void operator=(const CDXV_C& srcVector);
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void operator+=(const CDXV_C& vOther);
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void operator-=(const CDXV_C& vOther);
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BOOL operator==(const CDXV_C& otherVector) const;
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BOOL operator!=(const CDXV_C& otherVector) const;
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};
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template<class TYPE, DXBNDTYPE eBndType>
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CDXV_C CDXV_C::operator+( const CDXV_C& srcVector )
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{
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CDXV_C Result( this );
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CDXV_O( Result )[DXB_X] += CDXV_O( srcVector )[DXB_X];
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CDXV_O( Result )[DXB_Y] += CDXV_O( srcVector )[DXB_Y];
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CDXV_O( Result )[DXB_Z] += CDXV_O( srcVector )[DXB_Z];
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CDXV_O( Result )[DXB_T] += CDXV_O( srcVector )[DXB_T];
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return Result;
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} /* CDXVec::operator+ */
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template<class TYPE, DXBNDTYPE eBndType>
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CDXV_C CDXV_C::operator-( const CDXV_C& srcVector )
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{
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CDXV_C Result( this );
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CDXV_O( Result )[DXB_X] -= CDXV_O( srcVector )[DXB_X];
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CDXV_O( Result )[DXB_Y] -= CDXV_O( srcVector )[DXB_Y];
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CDXV_O( Result )[DXB_Z] -= CDXV_O( srcVector )[DXB_Z];
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CDXV_O( Result )[DXB_T] -= CDXV_O( srcVector )[DXB_T];
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return Result;
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} /* CDXVec::operator- */
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template<class TYPE, DXBNDTYPE eBndType>
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void CDXV_C::operator=( const CDXV_C& srcVector )
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{
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memcpy( this, &srcVector, sizeof(CDXVec) );
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} /* CDXVec::operator= */
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template<class TYPE, DXBNDTYPE eBndType>
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BOOL CDXV_C::operator==(const CDXV_C& otherVector) const
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{
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return !memcmp( this, &otherVector, sizeof(otherVector) );
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} /* CDXVec::operator== */
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template<class TYPE, DXBNDTYPE eBndType>
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BOOL CDXV_C::operator!=(const CDXV_C& otherVector) const
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{
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return memcmp( this, &otherVector, sizeof(otherVector) );
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} /* CDXVec::operator!= */
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template<class TYPE, DXBNDTYPE eBndType>
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void CDXV_C::operator+=(const CDXV_C& vOther)
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{
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CDXV_T[DXB_X] += CDXV_O( vOther )[DXB_X];
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CDXV_T[DXB_Y] += CDXV_O( vOther )[DXB_Y];
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CDXV_T[DXB_Z] += CDXV_O( vOther )[DXB_Z];
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CDXV_T[DXB_T] += CDXV_O( vOther )[DXB_T];
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} /* CDXVec::operator+= */
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template<class TYPE, DXBNDTYPE eBndType>
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void CDXV_C::operator-=(const CDXVec& vOther)
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{
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CDXV_T[DXB_X] -= CDXV_O( vOther )[DXB_X];
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CDXV_T[DXB_Y] -= CDXV_O( vOther )[DXB_Y];
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CDXV_T[DXB_Z] -= CDXV_O( vOther )[DXB_Z];
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CDXV_T[DXB_T] -= CDXV_O( vOther )[DXB_T];
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} /* CDXVec::operator-= */
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typedef CDXVec<long, DXBT_DISCRETE> CDXDVec;
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typedef CDXVec<LONGLONG, DXBT_DISCRETE64> CDXDVec64;
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typedef CDXVec<float, DXBT_CONTINUOUS> CDXCVec;
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typedef CDXVec<double, DXBT_CONTINUOUS64> CDXCVec64;
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#endif // DXVector_h
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