[845] | 1 | // Light.cpp: implementation of the Light class.
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| 2 | //
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| 3 | //////////////////////////////////////////////////////////////////////
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| 4 |
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| 5 | #include "Light.h"
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| 6 |
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| 7 | //////////////////////////////////////////////////////////////////////
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| 8 | // Construction/Destruction
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| 9 | //////////////////////////////////////////////////////////////////////
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| 10 |
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| 11 | Light::Light()
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| 12 | {
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| 13 |
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| 14 | }
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| 15 |
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| 16 | Light::~Light()
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| 17 | {
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| 18 |
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| 19 | }
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| 20 |
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| 21 | void Light::SetLight(GLenum light)
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| 22 | {
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| 23 | //glLightfv(light,GL_AMBIENT,m_Ambient_Color.GetArrayf());
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| 24 | glLightfv(light,GL_DIFFUSE,m_Diffuse_Color.GetArrayf());
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| 25 | //glLightfv(light,GL_AMBIENT,m_Diffuse_Color.GetArrayf());
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| 26 | glLightfv(light,GL_SPECULAR,m_Specular_Color.GetArrayf());
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| 27 |
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| 28 | if(this->m_type==LIGHT_TYPE_DIRECTIONAL)
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| 29 | {
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| 30 | m_Position.z=0;
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| 31 | m_Position.x=-1*m_Spot_Direction.x;
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| 32 | m_Position.y=-1*m_Spot_Direction.y;
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| 33 | m_Position.z=-1*m_Spot_Direction.z;
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| 34 | }
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| 35 | glLightfv(light,GL_POSITION,m_Position.GetArrayf());
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| 36 |
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| 37 | if(m_type==LIGHT_TYPE_SPOT)
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| 38 | {
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| 39 | glLightfv(light,GL_SPOT_DIRECTION,m_Spot_Direction.GetArrayf());
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| 40 | glLightf(light,GL_SPOT_EXPONENT,m_Exponent);
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| 41 | glLightf(light,GL_SPOT_CUTOFF,m_Cutoff);
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| 42 | }
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| 43 |
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| 44 | if(this->m_type==LIGHT_TYPE_POINT)
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| 45 | {
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| 46 | m_Cutoff=180;
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| 47 | glLightf(light,GL_SPOT_CUTOFF,m_Cutoff);
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| 48 | }
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| 49 |
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| 50 | glEnable(light);
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| 51 | }
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| 52 |
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| 53 | void Light::Load(ifstream *file)
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| 54 | {
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| 55 | fprintf(stderr, "Loading Light...\n");
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| 56 |
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| 57 | char* tempchar=new char[500];
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| 58 | file->getline(tempchar,500,' ');
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| 59 | file->getline(tempchar,500,'\n');
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| 60 | //pointlight
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| 61 | if(tempchar[0]=='p')
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| 62 | {
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| 63 | m_type=0;
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| 64 | }
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| 65 | //directionallight
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| 66 | if(tempchar[0]=='d')
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| 67 | {
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| 68 | m_type=1;
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| 69 | }
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| 70 | //spotlight
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| 71 | if(tempchar[0]=='s')
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| 72 | {
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| 73 | m_type=2;
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| 74 | }
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| 75 |
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| 76 | file->getline(tempchar,500,'\n');
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| 77 | sscanf(tempchar,"color %lf %lf %lf",&m_Diffuse_Color.x,&m_Diffuse_Color.y,&m_Diffuse_Color.z);
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| 78 | m_Specular_Color=m_Diffuse_Color;
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| 79 |
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| 80 | switch(m_type)
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| 81 | {
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| 82 | case 0:
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| 83 | file->getline(tempchar,500,'\n');
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| 84 | sscanf(tempchar,"position %lf %lf %lf",&m_Position.x,&m_Position.y,&m_Position.z);
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| 85 | m_Position.w=1;
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| 86 | file->getline(tempchar,500,'\n');
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| 87 | break;
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| 88 | case 1:
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| 89 | file->getline(tempchar,500,'\n');
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| 90 | sscanf(tempchar,"position %lf %lf %lf",&m_Position.x,&m_Position.y,&m_Position.z);
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| 91 | m_Position.w=0;
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| 92 | sscanf(tempchar,"direction %lf %lf %lf",&m_Position.x,&m_Position.y,&m_Position.z);
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| 93 | break;
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| 94 | case 2:
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| 95 | file->getline(tempchar,500,'\n');
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| 96 | sscanf(tempchar,"position %lf %lf %lf",&m_Position.x,&m_Position.y,&m_Position.z);
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| 97 | m_Position.w=1;
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| 98 | sscanf(tempchar,"direction %lf %lf %lf",&m_Spot_Direction.x,&m_Spot_Direction.y,&m_Spot_Direction.z);
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| 99 | break;
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| 100 | }
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| 101 | }
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