Source/Lights.cpp

   1 /*
   2 Copyright (C) 2003, 2010 - Wolfire Games
   3
   4 This file is part of Lugaru.
   5
   6 Lugaru is free software; you can redistribute it and/or
   7 modify it under the terms of the GNU General Public License
   8 as published by the Free Software Foundation; either version 2
   9 of the License, or (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  14
  15 See the GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20 */
  21
  22 /**> HEADER FILES <**/
  23 #include "Lights.h"
  24
  25 void SetUpLight(Light* whichsource, int whichlight){
  26         static float qattenuation[]={0.0002f};
  27         static float cattenuation[]={1.5f};
  28         static float lattenuation[]={0.5f};
  29         static float zattenuation[]={0.0f};
  30
  31         //Initialize lights
  32
  33         if(whichlight==0){
  34                 GLfloat LightAmbient[]=         { whichsource->ambient[0], whichsource->ambient[1], whichsource->ambient[2], 1.0f};
  35                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  36                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 0.0f };
  37
  38                 //glLightfv(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, qattenuation);
  39                 glLightfv(GL_LIGHT0, GL_POSITION, LightPosition);
  40                 glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient);
  41                 glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse);
  42                 glEnable(GL_LIGHT0);
  43         }
  44
  45         if(whichlight==1){
  46                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
  47                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  48                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  49
  50                 glLightfv(GL_LIGHT1, GL_QUADRATIC_ATTENUATION, qattenuation);
  51                 glLightfv(GL_LIGHT1, GL_POSITION, LightPosition);
  52                 glLightfv(GL_LIGHT1, GL_AMBIENT, LightAmbient);
  53                 glLightfv(GL_LIGHT1, GL_DIFFUSE, LightDiffuse);
  54                 glEnable(GL_LIGHT1);
  55         }
  56
  57         if(whichlight==2){
  58                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
  59                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  60                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  61
  62                 glLightfv(GL_LIGHT2, GL_QUADRATIC_ATTENUATION, qattenuation);
  63                 glLightfv(GL_LIGHT2, GL_POSITION, LightPosition);
  64                 glLightfv(GL_LIGHT2, GL_AMBIENT, LightAmbient);
  65                 glLightfv(GL_LIGHT2, GL_DIFFUSE, LightDiffuse);
  66                 glEnable(GL_LIGHT2);
  67         }
  68
  69         if(whichlight==3){
  70                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
  71                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  72                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  73
  74                 glLightfv(GL_LIGHT3, GL_QUADRATIC_ATTENUATION, qattenuation);
  75                 glLightfv(GL_LIGHT3, GL_POSITION, LightPosition);
  76                 glLightfv(GL_LIGHT3, GL_AMBIENT, LightAmbient);
  77                 glLightfv(GL_LIGHT3, GL_DIFFUSE, LightDiffuse);
  78                 glEnable(GL_LIGHT3);
  79         }
  80
  81         if(whichlight==4){
  82                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
  83                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  84                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  85
  86                 glLightfv(GL_LIGHT4, GL_QUADRATIC_ATTENUATION, qattenuation);
  87                 glLightfv(GL_LIGHT4, GL_POSITION, LightPosition);
  88                 glLightfv(GL_LIGHT4, GL_AMBIENT, LightAmbient);
  89                 glLightfv(GL_LIGHT4, GL_DIFFUSE, LightDiffuse);
  90                 glEnable(GL_LIGHT4);
  91         }
  92
  93         if(whichlight==5){
  94                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
  95                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  96                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  97
  98                 glLightfv(GL_LIGHT5, GL_QUADRATIC_ATTENUATION, qattenuation);
  99                 glLightfv(GL_LIGHT5, GL_POSITION, LightPosition);
 100                 glLightfv(GL_LIGHT5, GL_AMBIENT, LightAmbient);
 101                 glLightfv(GL_LIGHT5, GL_DIFFUSE, LightDiffuse);
 102                 glEnable(GL_LIGHT5);
 103         }
 104
 105         if(whichlight==6){
 106                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
 107                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
 108                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
 109
 110                 glLightfv(GL_LIGHT6, GL_QUADRATIC_ATTENUATION, qattenuation);
 111                 glLightfv(GL_LIGHT6, GL_POSITION, LightPosition);
 112                 glLightfv(GL_LIGHT6, GL_AMBIENT, LightAmbient);
 113                 glLightfv(GL_LIGHT6, GL_DIFFUSE, LightDiffuse);
 114                 glEnable(GL_LIGHT6);
 115         }
 116
 117         if(whichlight==7){
 118                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
 119                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
 120                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
 121
 122                 glLightfv(GL_LIGHT7, GL_QUADRATIC_ATTENUATION, qattenuation);
 123                 glLightfv(GL_LIGHT7, GL_POSITION, LightPosition);
 124                 glLightfv(GL_LIGHT7, GL_AMBIENT, LightAmbient);
 125                 glLightfv(GL_LIGHT7, GL_DIFFUSE, LightDiffuse);
 126                 glEnable(GL_LIGHT7);
 127         }
 128 }
 129
 130 void SetUpMainLight(Light* whichsource, int whichlight, float ambientr, float ambientg, float ambientb){
 131         static float qattenuation[]={0.0f};
 132
 133         //Initialize lights
 134
 135         if(whichlight==0){
 136                 GLfloat LightAmbient[]=         { ambientr, ambientg, ambientb, 1.0f};
 137                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
 138                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
 139
 140                 glLightfv(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, qattenuation);
 141                 glLightfv(GL_LIGHT0, GL_POSITION, LightPosition);
 142                 glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient);
 143                 glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse);
 144                 glEnable(GL_LIGHT0);
 145         }
 146 }