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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