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LibN2L-4 Library Code ReferenceClassesCompounds Files Members Method Index Full Reference cColour.hGo to the documentation of this file.00001 /************************************************************************ 00002 Nova-2 Library (libN2L, or simply n2l) Game development C++ Library 00003 Copyright (C) 2002 Aaron Cameron 00004 00005 This library is free software; you can redistribute it and/or 00006 modify it under the terms of the GNU Lesser General Public 00007 License as published by the Free Software Foundation; either 00008 version 2.1 of the License, or (at your option) any later version. 00009 00010 This library is distributed in the hope that it will be useful, 00011 but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 Lesser General Public License for more details. 00014 00015 You should have received a copy of the GNU Lesser General Public 00016 License along with this library; if not, write to the Free Software 00017 Foundation, Inc., 59 Temple Place, Suite 330, Boston, mC[3] 02111-1307 USA 00018 00019 A copy of the GNU Lesser General Public License has been provided with 00020 this library in the file 'COPYING'. 00021 00022 Contact informC[3]tion for the author of this library has been provided 00023 with this library in the file 'AUTHOR'. 00024 ************************************************************************/ 00025 #ifndef _n2l4_cColour_H 00026 #define _n2l4_cColour_H 00027 00028 #include "n2l/n2l.h" 00029 #include "n2l/dynVars.h" 00030 #include <GL/gl.h> 00031 00032 /******************************************************************************/ 00033 namespace n2l 00034 { 00038 class cColour 00039 { 00040 public: 00041 static const cColour White; 00042 static const cColour Red; 00043 static const cColour Blue; 00044 static const cColour Green; 00045 static const cColour Black; 00046 00047 /**********************************************************************/ 00048 cColour() 00049 { 00050 mC[0] = 1.0f; 00051 mC[1] = 1.0f; 00052 mC[2] = 1.0f; 00053 mC[3] = 1.0f; 00054 } 00055 00056 /**********************************************************************/ 00057 cColour( const cColour &iColour ) 00058 { 00059 mC[0] = iColour.mC[0]; 00060 mC[1] = iColour.mC[1]; 00061 mC[2] = iColour.mC[2]; 00062 mC[3] = iColour.mC[3]; 00063 } 00064 00065 /**********************************************************************/ 00066 cColour( const cDynVar &iDef ) 00067 { 00068 mC[0] = iDef.keyValueOr(0,0.0f); 00069 mC[1] = iDef.keyValueOr(1,0.0f); 00070 mC[2] = iDef.keyValueOr(2,0.0f); 00071 mC[3] = iDef.keyValueOr(3,1.0f); 00072 } 00073 00074 /**********************************************************************/ 00075 cColour( const tFloat &iR, const tFloat &iG, const tFloat &iB, 00076 const tFloat &iA = 1.0f ) 00077 { 00078 mC[0] = iR; mC[1] = iG; 00079 mC[2] = iB; mC[3] = iA; 00080 } 00081 00082 /**********************************************************************/ 00083 inline void r( const tFloat & iR ) { mC[0] = iR; } 00084 00085 /**********************************************************************/ 00086 inline void g( const tFloat & iG ) { mC[1] = iG; } 00087 00088 /**********************************************************************/ 00089 inline void b( const tFloat & iB ) { mC[2] = iB; } 00090 00091 /**********************************************************************/ 00092 inline void a( const tFloat & iA ) { mC[3] = iA; } 00093 00094 /**********************************************************************/ 00095 inline cColour &set( const tFloat &iR, const tFloat &iG, 00096 const tFloat &iB, const tFloat &iA = 1.0f ) 00097 { 00098 mC[0] = iR; mC[1] = iG; mC[2] = iB; mC[3] = iA; 00099 return *this; 00100 } 00101 00102 /**********************************************************************/ 00109 void normalize() 00110 { 00111 tFloat scale; 00112 // Operate on the largest component 00113 if (mC[0]>mC[1] && mC[0]>mC[2] && mC[0]>mC[3]) { 00114 scale = 1.0f/mC[0]; 00115 } else if (mC[1]>mC[0] && mC[1]>mC[2] && mC[1]>mC[3]) { 00116 scale = 1.0f/mC[1]; 00117 } else if (mC[2]>mC[1] && mC[2]>mC[0] && mC[2]>mC[3]) { 00118 scale = 1.0f/mC[2]; 00119 } else if (mC[3]>mC[1] && mC[3]>mC[2] && mC[3]>mC[0]) { 00120 scale = 1.0f/mC[3]; 00121 } else { 00122 // else we do nothing? That seems wrong. 00123 return; 00124 } 00125 *this *= scale; 00126 } 00127 00128 /**********************************************************************/ 00129 inline const tFloat &r() const { return mC[0]; } 00130 00131 /**********************************************************************/ 00132 inline const tFloat &g() const { return mC[1]; } 00133 00134 /**********************************************************************/ 00135 inline const tFloat &b() const { return mC[2]; } 00136 00137 /**********************************************************************/ 00138 inline const tFloat &a() const { return mC[3]; } 00139 00140 /**********************************************************************/ 00141 inline void get( tFloat &oR, tFloat &oG, tFloat &oB ) const 00142 { 00143 oR = mC[0]; oG = mC[1]; oB = mC[2]; 00144 } 00145 00146 /**********************************************************************/ 00147 inline void get( tFloat &oR, tFloat &oG, tFloat &oB, tFloat &oA ) const 00148 { 00149 oR = mC[0]; oG = mC[1]; oB = mC[2]; oA = mC[3]; 00150 } 00151 00152 /**********************************************************************/ 00153 inline void operator +=( const cColour &iColour ) 00154 { 00155 mC[0]+=iColour.mC[0]; 00156 mC[1]+=iColour.mC[1]; 00157 mC[2]+=iColour.mC[2]; 00158 mC[3]+=iColour.mC[3]; 00159 } 00160 00161 /**********************************************************************/ 00162 inline void operator *=( const cColour &iColour ) 00163 { 00164 mC[0]*=iColour.mC[0]; 00165 mC[1]*=iColour.mC[1]; 00166 mC[2]*=iColour.mC[2]; 00167 mC[3]*=iColour.mC[3]; 00168 } 00169 00170 /**********************************************************************/ 00171 inline const cColour operator -( const cColour &iColour ) const 00172 { 00173 cColour temp( mC[0]-iColour.mC[0], mC[1]-iColour.mC[1], 00174 mC[2]-iColour.mC[2], mC[3]-iColour.mC[3] ); 00175 return temp; 00176 } 00177 00178 /**********************************************************************/ 00179 inline const cColour operator +( const cColour &iColour ) const 00180 { 00181 cColour temp( mC[0]+iColour.mC[0], mC[1]+iColour.mC[1], 00182 mC[2]+iColour.mC[2], mC[3]+iColour.mC[3] ); 00183 return temp; 00184 } 00185 00186 /**********************************************************************/ 00187 inline const cColour operator *( const tFloat &iScaler ) const 00188 { 00189 cColour temp( mC[0]*iScaler, mC[1]*iScaler, 00190 mC[2]*iScaler, mC[3]*iScaler ); 00191 return temp; 00192 } 00193 00194 /**********************************************************************/ 00195 inline void operator *=( const tFloat &iScaler ) 00196 { 00197 mC[0]*=iScaler; 00198 mC[1]*=iScaler; 00199 mC[2]*=iScaler; 00200 mC[3]*=iScaler; 00201 } 00202 00203 /**********************************************************************/ 00204 inline void operator -=( const cColour &iColour ) 00205 { 00206 mC[0]-=iColour.mC[0]; 00207 mC[1]-=iColour.mC[1]; 00208 mC[2]-=iColour.mC[2]; 00209 mC[3]-=iColour.mC[3]; 00210 } 00211 00212 /**********************************************************************/ 00213 cColour &operator =( const cDynVar &iDef ) 00214 { 00215 mC[0] = iDef.keyValueOr(0,0.0f); 00216 mC[1] = iDef.keyValueOr(1,0.0f); 00217 mC[2] = iDef.keyValueOr(2,0.0f); 00218 mC[3] = iDef.keyValueOr(3,1.0f); 00219 return *this; 00220 } 00221 00222 /**********************************************************************/ 00223 void clampToZeroOne() 00224 { 00225 mC[0] = n2lMax( n2lMin(mC[0], 1.0f), 0.0f ); 00226 mC[1] = n2lMax( n2lMin(mC[1], 1.0f), 0.0f ); 00227 mC[2] = n2lMax( n2lMin(mC[2], 1.0f), 0.0f ); 00228 mC[3] = n2lMax( n2lMin(mC[3], 1.0f), 0.0f ); 00229 } 00230 00231 /**********************************************************************/ 00232 const tString dump() const { 00233 tString str("tColour("); 00234 str += asString(mC[0]); 00235 str += ","; 00236 str += asString(mC[1]); 00237 str += ","; 00238 str += asString(mC[2]); 00239 str += ","; 00240 str += asString(mC[3]); 00241 str += ")"; 00242 return str; 00243 } 00244 00245 /**********************************************************************/ 00246 inline void glColor4fv() const { ::glColor4fv( mC ); } 00247 00248 /**********************************************************************/ 00249 inline void glColor4f() const { 00250 ::glColor4f( mC[0],mC[1],mC[2],mC[3] ); 00251 } 00252 00253 /**********************************************************************/ 00254 inline void glColor3fv() const { ::glColor3fv( mC ); } 00255 00256 /**********************************************************************/ 00257 inline void glColor3f() const { ::glColor3f( mC[0],mC[1],mC[2] ); } 00258 00259 /**********************************************************************/ 00260 inline void glColour3() const { ::glColor3fv( mC ); } 00261 00262 /**********************************************************************/ 00263 inline void glColour4() const { ::glColor4fv( mC ); } 00264 00265 /**********************************************************************/ 00266 inline void glMaterialfv( const GLenum iFace, 00267 const GLenum iPName ) const { 00268 ::glMaterialfv( iFace, iPName, mC ); 00269 } 00270 00271 /**********************************************************************/ 00272 inline void glLightfv( const GLenum iLight, const GLenum iProp ) const 00273 { 00274 ::glLightfv( iLight, iProp, mC ); 00275 } 00276 00277 private: 00278 tFloat mC[4]; 00279 00280 }; // class 00281 00282 } // namespace n2l 00283 00284 #endif |
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