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 © 2000-2002 The OGRE Team 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 */ 00025 #ifndef __Vector4_H__ 00026 #define __Vector4_H__ 00027 00028 #include "OgrePrerequisites.h" 00029 #include "OgreVector3.h" 00030 #include "OgreMatrix4.h" 00031 00032 namespace Ogre 00033 { 00034 00037 class _OgreExport Vector4 00038 { 00039 public: 00040 union { 00041 struct { 00042 Real x, y, z, w; 00043 }; 00044 Real val[4]; 00045 }; 00046 00047 public: 00048 inline Vector4() 00049 { 00050 } 00051 00052 inline Vector4( Real fX, Real fY, Real fZ, Real fW ) 00053 : x( fX ), y( fY ), z( fZ ), w( fW) 00054 { 00055 } 00056 00057 inline Vector4( Real afCoordinate[4] ) 00058 : x( afCoordinate[0] ), 00059 y( afCoordinate[1] ), 00060 z( afCoordinate[2] ), 00061 w (afCoordinate[3] ) 00062 { 00063 } 00064 00065 inline Vector4( int afCoordinate[4] ) 00066 { 00067 x = (Real)afCoordinate[0]; 00068 y = (Real)afCoordinate[1]; 00069 z = (Real)afCoordinate[2]; 00070 w = (Real)afCoordinate[3]; 00071 } 00072 00073 inline Vector4( const Real* const r ) 00074 : x( r[0] ), y( r[1] ), z( r[2] ), w( r[3] ) 00075 { 00076 } 00077 00078 inline Vector4( const Vector4& rkVector ) 00079 : x( rkVector.x ), y( rkVector.y ), z( rkVector.z ), w (rkVector.w) 00080 { 00081 } 00082 00083 inline Real operator [] ( unsigned i ) const 00084 { 00085 assert( i < 4 ); 00086 00087 return *(&x+i); 00088 } 00089 00090 inline Real& operator [] ( unsigned i ) 00091 { 00092 assert( i < 4 ); 00093 00094 return *(&x+i); 00095 } 00096 00101 inline Vector4& operator = ( const Vector4& rkVector ) 00102 { 00103 x = rkVector.x; 00104 y = rkVector.y; 00105 z = rkVector.z; 00106 w = rkVector.w; 00107 00108 return *this; 00109 } 00110 00111 inline bool operator == ( const Vector4& rkVector ) const 00112 { 00113 return ( x == rkVector.x && 00114 y == rkVector.y && 00115 z == rkVector.z && 00116 w == rkVector.w ); 00117 } 00118 00119 inline bool operator != ( const Vector4& rkVector ) const 00120 { 00121 return ( x != rkVector.x || 00122 y != rkVector.y || 00123 z != rkVector.z || 00124 w != rkVector.w ); 00125 } 00126 00127 inline Vector4& operator = (const Vector3& rhs) 00128 { 00129 x = rhs.x; 00130 y = rhs.y; 00131 z = rhs.z; 00132 w = 1.0f; 00133 return *this; 00134 } 00135 00136 inline Vector4 operator * (const Matrix4& mat) const 00137 { 00138 return Vector4( 00139 x*mat[0][0] + y*mat[1][0] + z*mat[2][0] + w*mat[3][0], 00140 x*mat[0][1] + y*mat[1][1] + z*mat[2][1] + w*mat[3][1], 00141 x*mat[0][2] + y*mat[1][2] + z*mat[2][2] + w*mat[3][2], 00142 x*mat[0][3] + y*mat[1][3] + z*mat[2][3] + w*mat[3][3] 00143 ); 00144 } 00145 00146 00154 inline Real dotProduct(const Vector4& vec) const 00155 { 00156 return x * vec.x + y * vec.y + z * vec.z + w * vec.w; 00157 } 00160 inline _OgreExport friend std::ostream& operator << 00161 ( std::ostream& o, const Vector4& v ) 00162 { 00163 o << "Vector4(" << v.x << ", " << v.y << ", " << v.z << ", " << v.w << ")"; 00164 return o; 00165 } 00166 }; 00167 00168 } 00169 #endif
Copyright © 2002-2003 by The OGRE Team
Last modified Wed Jan 21 00:10:31 2004