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         if(whichlight==0){
  33                 GLfloat LightAmbient[]=         { whichsource->ambient[0], whichsource->ambient[1], whichsource->ambient[2], 1.0f};
  34                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  35                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 0.0f };
  36
  37                 //glLightfv(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, qattenuation);
  38                 glLightfv(GL_LIGHT0, GL_POSITION, LightPosition);
  39                 glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient);
  40                 glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse);
  41                 glEnable(GL_LIGHT0);
  42         }else{
  43                 GLenum lightselect=GL_LIGHT1;
  44                 switch (whichlight){
  45                         case 2:
  46                                 lightselect=GL_LIGHT2;
  47                                 break;
  48                         case 3:
  49                                 lightselect=GL_LIGHT3;
  50                                 break;
  51                         case 4:
  52                                 lightselect=GL_LIGHT4;
  53                                 break;
  54                         case 5:
  55                                 lightselect=GL_LIGHT5;
  56                                 break;
  57                         case 6:
  58                                 lightselect=GL_LIGHT6;
  59                                 break;
  60                         case 7:
  61                                 lightselect=GL_LIGHT7;
  62                                 break;
  63                 }
  64
  65                 GLfloat LightAmbient[]=         { 0, 0, 0, 1.0f};
  66                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  67                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  68
  69                 glLightfv(lightselect, GL_QUADRATIC_ATTENUATION, qattenuation);
  70                 glLightfv(lightselect, GL_POSITION, LightPosition);
  71                 glLightfv(lightselect, GL_AMBIENT, LightAmbient);
  72                 glLightfv(lightselect, GL_DIFFUSE, LightDiffuse);
  73                 glEnable(lightselect);
  74
  75                 }
  76 }
  77
  78 void SetUpMainLight(Light* whichsource, int whichlight, float ambientr, float ambientg, float ambientb){
  79         static float qattenuation[]={0.0f};
  80
  81         //Initialize lights
  82
  83         if(whichlight==0){
  84                 GLfloat LightAmbient[]=         { ambientr, ambientg, ambientb, 1.0f};
  85                 GLfloat LightDiffuse[]=         { whichsource->color[0], whichsource->color[1], whichsource->color[2], 1.0f };
  86                 GLfloat LightPosition[]=        { whichsource->location.x, whichsource->location.y, whichsource->location.z, 1.0f };
  87
  88                 glLightfv(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, qattenuation);
  89                 glLightfv(GL_LIGHT0, GL_POSITION, LightPosition);
  90                 glLightfv(GL_LIGHT0, GL_AMBIENT, LightAmbient);
  91                 glLightfv(GL_LIGHT0, GL_DIFFUSE, LightDiffuse);
  92                 glEnable(GL_LIGHT0);
  93         }
  94 }