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# OgreVector4.h

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright (c) 2000-2006 Torus Knot Software Ltd
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software; you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation; either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program; if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023
    00024 You may alternatively use this source under the terms of a specific version of
    00025 the OGRE Unrestricted License provided you have obtained such a license from
    00026 Torus Knot Software Ltd.
    00027 -----------------------------------------------------------------------------
    00028 */
    00029 #ifndef __Vector4_H__
    00030 #define __Vector4_H__
    00031
    00032 #include "OgrePrerequisites.h"
    00033 #include "OgreVector3.h"
    00034
    00035 namespace Ogre
    00036 {
    00037
    00040     class _OgreExport Vector4
    00041     {
    00042     public:
    00043         Real x, y, z, w;
    00044
    00045     public:
    00046         inline Vector4()
    00047         {
    00048         }
    00049
    00050         inline Vector4( const Real fX, const Real fY, const Real fZ, const Real fW )
    00051             : x( fX ), y( fY ), z( fZ ), w( fW)
    00052         {
    00053         }
    00054
    00055         inline explicit Vector4( const Real afCoordinate[4] )
    00056             : x( afCoordinate[0] ),
    00057               y( afCoordinate[1] ),
    00058               z( afCoordinate[2] ),
    00059               w( afCoordinate[3] )
    00060         {
    00061         }
    00062
    00063         inline explicit Vector4( const int afCoordinate[4] )
    00064         {
    00065             x = (Real)afCoordinate[0];
    00066             y = (Real)afCoordinate[1];
    00067             z = (Real)afCoordinate[2];
    00068             w = (Real)afCoordinate[3];
    00069         }
    00070
    00071         inline explicit Vector4( Real* const r )
    00072             : x( r[0] ), y( r[1] ), z( r[2] ), w( r[3] )
    00073         {
    00074         }
    00075
    00076         inline explicit Vector4( const Real scaler )
    00077             : x( scaler )
    00078             , y( scaler )
    00079             , z( scaler )
    00080             , w( scaler )
    00081         {
    00082         }
    00083
    00084         inline explicit Vector4(const Vector3& rhs)
    00085             : x(rhs.x), y(rhs.y), z(rhs.z), w(1.0f)
    00086         {
    00087         }
    00088
    00089         inline Vector4( const Vector4& rkVector )
    00090             : x( rkVector.x ), y( rkVector.y ), z( rkVector.z ), w (rkVector.w)
    00091         {
    00092         }
    00093
    00094         inline Real operator [] ( const size_t i ) const
    00095         {
    00096             assert( i < 4 );
    00097
    00098             return *(&x+i);
    00099         }
    00100
    00101         inline Real& operator [] ( const size_t i )
    00102         {
    00103             assert( i < 4 );
    00104
    00105             return *(&x+i);
    00106         }
    00107
    00109         inline Real* ptr()
    00110         {
    00111             return &x;
    00112         }
    00114         inline const Real* ptr() const
    00115         {
    00116             return &x;
    00117         }
    00118
    00123         inline Vector4& operator = ( const Vector4& rkVector )
    00124         {
    00125             x = rkVector.x;
    00126             y = rkVector.y;
    00127             z = rkVector.z;
    00128             w = rkVector.w;
    00129
    00130             return *this;
    00131         }
    00132
    00133         inline Vector4& operator = ( const Real fScalar)
    00134         {
    00135             x = fScalar;
    00136             y = fScalar;
    00137             z = fScalar;
    00138             w = fScalar;
    00139             return *this;
    00140         }
    00141
    00142         inline bool operator == ( const Vector4& rkVector ) const
    00143         {
    00144             return ( x == rkVector.x &&
    00145                 y == rkVector.y &&
    00146                 z == rkVector.z &&
    00147                 w == rkVector.w );
    00148         }
    00149
    00150         inline bool operator != ( const Vector4& rkVector ) const
    00151         {
    00152             return ( x != rkVector.x ||
    00153                 y != rkVector.y ||
    00154                 z != rkVector.z ||
    00155                 w != rkVector.w );
    00156         }
    00157
    00158         inline Vector4& operator = (const Vector3& rhs)
    00159         {
    00160             x = rhs.x;
    00161             y = rhs.y;
    00162             z = rhs.z;
    00163             w = 1.0f;
    00164             return *this;
    00165         }
    00166
    00167         // arithmetic operations
    00168         inline Vector4 operator + ( const Vector4& rkVector ) const
    00169         {
    00170             return Vector4(
    00171                 x + rkVector.x,
    00172                 y + rkVector.y,
    00173                 z + rkVector.z,
    00174                 w + rkVector.w);
    00175         }
    00176
    00177         inline Vector4 operator - ( const Vector4& rkVector ) const
    00178         {
    00179             return Vector4(
    00180                 x - rkVector.x,
    00181                 y - rkVector.y,
    00182                 z - rkVector.z,
    00183                 w - rkVector.w);
    00184         }
    00185
    00186         inline Vector4 operator * ( const Real fScalar ) const
    00187         {
    00188             return Vector4(
    00189                 x * fScalar,
    00190                 y * fScalar,
    00191                 z * fScalar,
    00192                 w * fScalar);
    00193         }
    00194
    00195         inline Vector4 operator * ( const Vector4& rhs) const
    00196         {
    00197             return Vector4(
    00198                 rhs.x * x,
    00199                 rhs.y * y,
    00200                 rhs.z * z,
    00201                 rhs.w * w);
    00202         }
    00203
    00204         inline Vector4 operator / ( const Real fScalar ) const
    00205         {
    00206             assert( fScalar != 0.0 );
    00207
    00208             Real fInv = 1.0 / fScalar;
    00209
    00210             return Vector4(
    00211                 x * fInv,
    00212                 y * fInv,
    00213                 z * fInv,
    00214                 w * fInv);
    00215         }
    00216
    00217         inline Vector4 operator / ( const Vector4& rhs) const
    00218         {
    00219             return Vector4(
    00220                 x / rhs.x,
    00221                 y / rhs.y,
    00222                 z / rhs.z,
    00223                 w / rhs.w);
    00224         }
    00225
    00226         inline const Vector4& operator + () const
    00227         {
    00228             return *this;
    00229         }
    00230
    00231         inline Vector4 operator - () const
    00232         {
    00233             return Vector4(-x, -y, -z, -w);
    00234         }
    00235
    00236         inline friend Vector4 operator * ( const Real fScalar, const Vector4& rkVector )
    00237         {
    00238             return Vector4(
    00239                 fScalar * rkVector.x,
    00240                 fScalar * rkVector.y,
    00241                 fScalar * rkVector.z,
    00242                 fScalar * rkVector.w);
    00243         }
    00244
    00245         inline friend Vector4 operator / ( const Real fScalar, const Vector4& rkVector )
    00246         {
    00247             return Vector4(
    00248                 fScalar / rkVector.x,
    00249                 fScalar / rkVector.y,
    00250                 fScalar / rkVector.z,
    00251                 fScalar / rkVector.w);
    00252         }
    00253
    00254         inline friend Vector4 operator + (const Vector4& lhs, const Real rhs)
    00255         {
    00256             return Vector4(
    00257                 lhs.x + rhs,
    00258                 lhs.y + rhs,
    00259                 lhs.z + rhs,
    00260                 lhs.w + rhs);
    00261         }
    00262
    00263         inline friend Vector4 operator + (const Real lhs, const Vector4& rhs)
    00264         {
    00265             return Vector4(
    00266                 lhs + rhs.x,
    00267                 lhs + rhs.y,
    00268                 lhs + rhs.z,
    00269                 lhs + rhs.w);
    00270         }
    00271
    00272         inline friend Vector4 operator - (const Vector4& lhs, Real rhs)
    00273         {
    00274             return Vector4(
    00275                 lhs.x - rhs,
    00276                 lhs.y - rhs,
    00277                 lhs.z - rhs,
    00278                 lhs.w - rhs);
    00279         }
    00280
    00281         inline friend Vector4 operator - (const Real lhs, const Vector4& rhs)
    00282         {
    00283             return Vector4(
    00284                 lhs - rhs.x,
    00285                 lhs - rhs.y,
    00286                 lhs - rhs.z,
    00287                 lhs - rhs.w);
    00288         }
    00289
    00290         // arithmetic updates
    00291         inline Vector4& operator += ( const Vector4& rkVector )
    00292         {
    00293             x += rkVector.x;
    00294             y += rkVector.y;
    00295             z += rkVector.z;
    00296             w += rkVector.w;
    00297
    00298             return *this;
    00299         }
    00300
    00301         inline Vector4& operator -= ( const Vector4& rkVector )
    00302         {
    00303             x -= rkVector.x;
    00304             y -= rkVector.y;
    00305             z -= rkVector.z;
    00306             w -= rkVector.w;
    00307
    00308             return *this;
    00309         }
    00310
    00311         inline Vector4& operator *= ( const Real fScalar )
    00312         {
    00313             x *= fScalar;
    00314             y *= fScalar;
    00315             z *= fScalar;
    00316             w *= fScalar;
    00317             return *this;
    00318         }
    00319
    00320         inline Vector4& operator += ( const Real fScalar )
    00321         {
    00322             x += fScalar;
    00323             y += fScalar;
    00324             z += fScalar;
    00325             w += fScalar;
    00326             return *this;
    00327         }
    00328
    00329         inline Vector4& operator -= ( const Real fScalar )
    00330         {
    00331             x -= fScalar;
    00332             y -= fScalar;
    00333             z -= fScalar;
    00334             w -= fScalar;
    00335             return *this;
    00336         }
    00337
    00338         inline Vector4& operator *= ( const Vector4& rkVector )
    00339         {
    00340             x *= rkVector.x;
    00341             y *= rkVector.y;
    00342             z *= rkVector.z;
    00343             w *= rkVector.w;
    00344
    00345             return *this;
    00346         }
    00347
    00348         inline Vector4& operator /= ( const Real fScalar )
    00349         {
    00350             assert( fScalar != 0.0 );
    00351
    00352             Real fInv = 1.0 / fScalar;
    00353
    00354             x *= fInv;
    00355             y *= fInv;
    00356             z *= fInv;
    00357             w *= fInv;
    00358
    00359             return *this;
    00360         }
    00361
    00362         inline Vector4& operator /= ( const Vector4& rkVector )
    00363         {
    00364             x /= rkVector.x;
    00365             y /= rkVector.y;
    00366             z /= rkVector.z;
    00367             w /= rkVector.w;
    00368
    00369             return *this;
    00370         }
    00371
    00379         inline Real dotProduct(const Vector4& vec) const
    00380         {
    00381             return x * vec.x + y * vec.y + z * vec.z + w * vec.w;
    00382         }
    00385         inline _OgreExport friend std::ostream& operator <<
    00386             ( std::ostream& o, const Vector4& v )
    00387         {
    00388             o << "Vector4(" << v.x << ", " << v.y << ", " << v.z << ", " << v.w << ")";
    00389             return o;
    00390         }
    00391         // special
    00392         static const Vector4 ZERO;
    00393     };
    00394
    00395 }
    00396 #endif

Copyright © 2000-2005 by The OGRE Team
This work is licensed under a Creative Commons Attribution-ShareAlike 2.5 License.
Last modified Sun Sep 30 10:50:58 2007