1 | /* |
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2 | orxonox - the future of 3D-vertical-scrollers |
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3 | |
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4 | Copyright (C) 2004 orx |
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5 | |
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6 | This program is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
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10 | |
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11 | ### File Specific: |
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12 | main-programmer: bottac@ee.ethz.ch |
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13 | */ |
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14 | |
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15 | #include "height_map.h" |
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16 | #include "model.h" |
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17 | #include "texture.h" |
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18 | #include "vector.h" |
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19 | #include "material.h" |
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20 | #include "p_node.h" |
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21 | #include "state.h" |
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22 | #include "resource_manager.h" |
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23 | #include "debug.h" |
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24 | |
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25 | // INCLUDING SDL_Image |
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26 | #ifdef HAVE_SDL_IMAGE_H |
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27 | #include <SDL_image.h> |
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28 | #else |
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29 | #include <SDL/SDL_image.h> |
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30 | #endif |
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31 | |
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32 | Tile::Tile(int i1, int j1, int i2, int j2, HeightMap* hm ) |
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33 | { |
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34 | |
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35 | PRINTF(0)("Tile Constructor\n"); |
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36 | highResModel = new VertexArrayModel(); |
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37 | lowResModel = new VertexArrayModel(); |
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38 | |
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39 | this->load(i1,j1,i2,j2,hm,highResModel,4); |
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40 | this->load(i1,j1,i2,j2,hm,lowResModel, 8); |
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41 | } |
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42 | |
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43 | Tile::Tile() |
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44 | { |
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45 | PRINTF(0)("ooops *********************************************************************************************************************************************************************************************************** \n"); |
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46 | } |
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47 | |
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48 | Tile::~Tile() |
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49 | { |
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50 | delete highResModel; |
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51 | delete lowResModel; |
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52 | } |
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53 | |
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54 | void Tile::draw() |
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55 | { |
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56 | // This Draws the LOD's |
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57 | //FIXME |
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58 | float cameraDistance = (State::getCamera()->getAbsCoor() - Vector(0.0,100.0,0.0)).len(); |
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59 | if (cameraDistance > 10000 ) |
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60 | { |
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61 | |
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62 | } |
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63 | else if (cameraDistance >= 50000 ) |
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64 | { |
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65 | this->drawLowRes(); |
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66 | } |
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67 | else |
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68 | { |
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69 | this->drawHighRes(); |
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70 | } |
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71 | } |
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72 | |
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73 | void Tile::drawHighRes() |
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74 | { |
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75 | highResModel->draw(); |
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76 | } |
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77 | |
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78 | void Tile::drawLowRes() |
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79 | { |
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80 | lowResModel->draw(); |
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81 | } |
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82 | |
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83 | /* |
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84 | */ |
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85 | void Tile::load(int i1, int j1, int i2, int j2, HeightMap* hm, VertexArrayModel* model, int Res) |
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86 | { |
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87 | |
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88 | #define heightMap hm->heightMap |
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89 | #define colours hm->colours |
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90 | #define scaleX hm->scaleX |
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91 | #define scaleY hm->scaleY |
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92 | #define scaleZ hm->scaleZ |
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93 | #define shiftX hm->shiftX |
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94 | #define shiftY hm->shiftY |
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95 | #define shiftZ hm->shiftZ |
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96 | #define normalVectorField hm->normalVectorField |
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97 | |
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98 | int sampleRate = Res; |
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99 | |
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100 | float height = 0; |
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101 | int offset = 0; |
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102 | |
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103 | float r = 0.0; |
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104 | float g = 0.0; |
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105 | float b = 0.0; |
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106 | |
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107 | |
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108 | PRINTF(0)("loadin * \n"); |
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109 | |
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110 | if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 ) |
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111 | |
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112 | SDL_LockSurface(heightMap); |
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113 | |
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114 | for(int i = i1 ; i <= i2 ; i +=sampleRate) |
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115 | { |
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116 | int w = 0; |
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117 | |
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118 | |
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119 | |
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120 | if(hm->hasColourMap) |
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121 | { |
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122 | r = (float)colours[3*w+2 + 3*i*(heightMap->w )]; |
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123 | g = (float)colours[3*w+1 + 3*i*(heightMap->w)]; |
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124 | b = (float)colours[3*w+0 + 3*i*(heightMap->w)]; |
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125 | } |
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126 | |
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127 | w = j1; |
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128 | model->addVertex(scaleX*(heightMap->h -i)+ shiftX,shiftY,scaleZ*(w)+ shiftZ); // Top Right |
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129 | model->addNormal(normalVectorField[i][w].y,normalVectorField[i][w].z,normalVectorField[i][w].x); |
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130 | model->addTexCoor((float)(j1-sampleRate) /(texRate), (float)(i %heightMap->h)/(texRate)); |
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131 | model->addColor(r/255.0,g/255.0,b/255.0); |
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132 | |
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133 | for(int j = j1 ; j <= j2 ; j += sampleRate) |
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134 | { |
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135 | |
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136 | |
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137 | // To be fixed |
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138 | if(hm->hasColourMap) |
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139 | { |
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140 | r = (float)colours[3*j+2 + 3*i*(heightMap->w )]; |
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141 | g = (float)colours[3*j+1 + 3*i*(heightMap->w)]; |
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142 | b = (float)colours[3*j+0 + 3*i*(heightMap->w)]; |
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143 | } |
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144 | height = (float)(unsigned char) hm->heights[j +sampleRate+ i*(heightMap->w )]; |
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145 | height += (float)(unsigned char) hm->heights[j+ 1 + sampleRate + (i+1)*(heightMap->w )]; |
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146 | height += (float) (unsigned char) hm->heights[j -1+ sampleRate + (i+1)*(heightMap->w )]; |
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147 | height += (float)(unsigned char)hm->heights[j +sampleRate+ (i+2)*(heightMap->w )]; |
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148 | height += (float)(unsigned char)hm->heights[j+sampleRate + (i)*(heightMap->w )]; |
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149 | height=height/5.0; |
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150 | |
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151 | model->addVertex(scaleX*(heightMap->h -i) + shiftX ,((double)(height)*scaleY) + shiftY ,scaleZ*(j) + shiftZ); // Top Right |
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152 | model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x); |
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153 | model->addTexCoor((float)(j) /(texRate), (float)(i %heightMap->h)/(texRate)); |
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154 | |
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155 | //PRINTF(0)("TexCoord: %f %f \n",(float)j / 100.0, (float)(i %heightMap->h)/100.0); |
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156 | |
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157 | model->addColor(r/255.0,g/255.0,b/255.0); |
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158 | w = j; |
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159 | } |
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160 | |
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161 | |
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162 | model->addVertex(scaleX*(heightMap->h -i)+ shiftX,shiftY,scaleZ*(w)+ shiftZ); // Top Right |
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163 | model->addNormal(normalVectorField[i][w].y,normalVectorField[i][w].z,normalVectorField[i][w].x); |
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164 | model->addTexCoor((float)(j2+sampleRate) /(texRate), (float)(i %heightMap->h)/(texRate)); |
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165 | model->addColor(r/255.0,g/255.0,b/255.0); |
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166 | |
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167 | } |
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168 | |
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169 | |
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170 | |
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171 | |
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172 | |
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173 | SDL_UnlockSurface(heightMap); |
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174 | int cnt = 0; |
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175 | for(int i = i1 ; i < i2 ; i +=sampleRate) |
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176 | { |
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177 | |
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178 | for(int j = j1-sampleRate ; j < j2 + 2*sampleRate ; j += sampleRate) |
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179 | { |
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180 | |
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181 | model->addIndice(cnt); |
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182 | model->addIndice(cnt + (j2 -j1 + 3* sampleRate )/ sampleRate ); |
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183 | cnt++; |
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184 | |
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185 | } |
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186 | |
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187 | |
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188 | |
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189 | model->newStripe(); |
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190 | |
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191 | |
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192 | } |
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193 | cnt += (j2 -j1 + 3* sampleRate)/ sampleRate; |
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194 | |
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195 | for(int j = j1 ; j <= j2 ; j += sampleRate) |
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196 | { |
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197 | int i = i1; |
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198 | |
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199 | // To be fixed |
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200 | if(hm->hasColourMap) |
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201 | { |
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202 | r = (float)colours[3*j+2 + 3*i*(heightMap->w )]; |
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203 | g = (float)colours[3*j+1 + 3*i*(heightMap->w)]; |
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204 | b = (float)colours[3*j+0 + 3*i*(heightMap->w)]; |
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205 | } |
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206 | |
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207 | model->addVertex(scaleX*(heightMap->h -i) + shiftX , shiftY ,scaleZ*(j) + shiftZ); // Top Right |
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208 | model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x); |
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209 | model->addTexCoor((float)j /(texRate), (float)((i - sampleRate) %heightMap->h)/(texRate)); |
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210 | model->addColor(r/255.0,g/255.0,b/255.0); |
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211 | |
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212 | } |
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213 | |
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214 | for(int j = j1 ; j <= j2 ; j += sampleRate) |
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215 | { |
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216 | int i = i1; |
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217 | height = (float)(unsigned char) hm->heights[j +sampleRate+ i*(heightMap->w )]; |
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218 | height += (float)(unsigned char) hm->heights[j+ 1 + sampleRate + (i+1)*(heightMap->w )]; |
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219 | height += (float) (unsigned char) hm->heights[j -1+ sampleRate + (i+1)*(heightMap->w )]; |
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220 | height += (float)(unsigned char)hm->heights[j +sampleRate+ (i+2)*(heightMap->w )]; |
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221 | height += (float)(unsigned char)hm->heights[j+sampleRate + (i)*(heightMap->w )]; |
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222 | height=height/5.0; |
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223 | |
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224 | model->addVertex(scaleX*(heightMap->h -i) + shiftX , ((double)(height)*scaleY) +shiftY ,scaleZ*(j) + shiftZ); // Top Right |
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225 | model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x); |
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226 | model->addTexCoor((float)j /(texRate), (float)(i %heightMap->h)/(texRate)); |
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227 | model->addColor(r/255.0,g/255.0,b/255.0); |
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228 | |
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229 | } |
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230 | |
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231 | |
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232 | |
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233 | for(int j = j1 ; j <= j2 ; j += sampleRate) |
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234 | { |
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235 | int i = i2; |
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236 | |
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237 | // To be fixed |
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238 | if(hm->hasColourMap) |
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239 | { |
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240 | r = (float)colours[3*j+2 + 3*i*(heightMap->w )]; |
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241 | g = (float)colours[3*j+1 + 3*i*(heightMap->w)]; |
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242 | b = (float)colours[3*j+0 + 3*i*(heightMap->w)]; |
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243 | } |
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244 | |
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245 | model->addVertex(scaleX*(heightMap->h -i) + shiftX , shiftY ,scaleZ*(j) + shiftZ); // Top Right |
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246 | model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x); |
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247 | model->addTexCoor((float)j /(texRate), (float)((i+ sampleRate) %heightMap->h)/(texRate)); |
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248 | model->addColor(r/255.0,g/255.0,b/255.0); |
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249 | |
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250 | } |
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251 | |
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252 | |
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253 | for(int j = j1 ; j <= j2 ; j += sampleRate) |
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254 | { |
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255 | int i = i2; |
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256 | height = (float)(unsigned char) hm->heights[j +sampleRate+ i*(heightMap->w )]; |
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257 | height += (float)(unsigned char) hm->heights[j+ 1 + sampleRate + (i+1)*(heightMap->w )]; |
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258 | height += (float) (unsigned char) hm->heights[j -1+ sampleRate + (i+1)*(heightMap->w )]; |
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259 | height += (float)(unsigned char)hm->heights[j +sampleRate+ (i+2)*(heightMap->w )]; |
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260 | height += (float)(unsigned char)hm->heights[j+sampleRate + (i)*(heightMap->w )]; |
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261 | height=height/5.0; |
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262 | model->addVertex(scaleX*(heightMap->h -i) + shiftX , ((double)(height)*scaleY) +shiftY ,scaleZ*(j) + shiftZ); // Top Right |
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263 | model->addNormal(normalVectorField[i][j].y,normalVectorField[i][j].z,normalVectorField[i][j].x); |
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264 | model->addTexCoor((float)j /(texRate), (float)(i %heightMap->h)/(texRate)); |
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265 | model->addColor(r/255.0,g/255.0,b/255.0); |
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266 | |
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267 | } |
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268 | |
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269 | |
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270 | |
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271 | |
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272 | // link Boarder Stripe |
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273 | for(int j = j1-sampleRate ; j < j2 ; j += sampleRate) |
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274 | { |
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275 | |
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276 | model->addIndice(cnt); |
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277 | model->addIndice(cnt + (j2 -j1 + sampleRate )/ sampleRate ); |
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278 | cnt++; |
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279 | |
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280 | } |
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281 | |
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282 | cnt++; |
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283 | |
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284 | model->newStripe(); |
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285 | |
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286 | |
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287 | |
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288 | |
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289 | |
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290 | cnt += (j2-j1)/ sampleRate; |
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291 | |
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292 | // link 2nd BoarderStripe |
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293 | for(int j = j1-sampleRate ; j < j2 ; j += sampleRate) |
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294 | { |
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295 | |
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296 | model->addIndice(cnt); |
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297 | model->addIndice(cnt + (j2 -j1 + sampleRate )/ sampleRate ); |
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298 | cnt++; |
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299 | |
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300 | } |
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301 | |
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302 | |
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303 | |
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304 | model->finalize(); |
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305 | |
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306 | |
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307 | |
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308 | |
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309 | #undef heightMap |
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310 | #undef colours |
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311 | #undef scaleX |
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312 | #undef scaleY |
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313 | #undef scaleZ |
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314 | #undef shiftX |
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315 | #undef shiftY |
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316 | #undef shiftZ |
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317 | #undef normalVectorField |
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318 | |
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319 | } |
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320 | |
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321 | HeightMap::HeightMap() |
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322 | { |
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323 | |
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324 | } |
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325 | |
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326 | HeightMap::HeightMap(const char* height_map_name = NULL) : VertexArrayModel() |
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327 | { |
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328 | this->setClassID(CL_HEIGHT_MAP, "HeightMap"); |
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329 | heightMap = IMG_Load(height_map_name); |
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330 | if(heightMap!=NULL) { |
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331 | |
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332 | PRINTF(0)("loading Image %s\n", height_map_name); |
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333 | PRINTF(0)("width : %i\n", heightMap->w); |
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334 | PRINTF(0)("height : %i\n", heightMap->h); |
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335 | PRINTF(0)("%i Byte(s) per Pixel \n", heightMap->format->BytesPerPixel); |
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336 | PRINTF(0)("Rshift : %i\n", heightMap->format->Rshift); |
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337 | PRINTF(0)("Bshift: %i\n", heightMap->format->Bshift); |
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338 | PRINTF(0)("Gshift: %i\n", heightMap->format->Gshift); |
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339 | PRINTF(0)("Rmask: %i\n", heightMap->format->Rmask); |
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340 | PRINTF(0)("Gmask: %i\n", heightMap->format->Gmask); |
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341 | } |
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342 | |
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343 | else PRINTF(4)("oops! couldn't load %s for some reason.\n", height_map_name); |
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344 | |
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345 | |
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346 | generateNormalVectorField(); |
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347 | |
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348 | shiftX = 0; |
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349 | shiftY = 0; |
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350 | shiftZ = 0; |
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351 | |
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352 | } |
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353 | |
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354 | HeightMap::HeightMap(const char* height_map_name = NULL, const char* colour_map_name = NULL) : VertexArrayModel() |
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355 | { |
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356 | this->setClassID(CL_HEIGHT_MAP, "HeightMap"); |
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357 | |
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358 | heightMap = IMG_Load(height_map_name); |
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359 | if(heightMap!=NULL) { |
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360 | |
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361 | PRINTF(0)("loading Image %s\n", height_map_name); |
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362 | PRINTF(0)("width : %i\n", heightMap->w); |
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363 | PRINTF(0)("height : %i\n", heightMap->h); |
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364 | PRINTF(0)("%i Byte(s) per Pixel \n", heightMap->format->BytesPerPixel); |
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365 | PRINTF(0)("Rshift : %i\n", heightMap->format->Rshift); |
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366 | PRINTF(0)("Bshift: %i\n", heightMap->format->Bshift); |
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367 | PRINTF(0)("Gshift: %i\n", heightMap->format->Gshift); |
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368 | PRINTF(0)("Rmask: %i\n", heightMap->format->Rmask); |
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369 | PRINTF(0)("Gmask: %i\n", heightMap->format->Gmask); |
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370 | } |
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371 | |
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372 | else PRINTF(4)("oops! couldn't load %s for some reason.\n", height_map_name); |
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373 | |
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374 | |
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375 | generateNormalVectorField(); |
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376 | |
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377 | colourMap=NULL; |
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378 | if(colour_map_name != NULL) |
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379 | { |
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380 | colourMap = IMG_Load(colour_map_name); |
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381 | } |
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382 | |
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383 | if(colourMap != NULL) |
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384 | { |
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385 | PRINTF(0)("loading Image %s\n", colour_map_name); |
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386 | PRINTF(0)("width : %i\n", colourMap->w); |
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387 | PRINTF(0)("height : %i\n", colourMap->h); |
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388 | PRINTF(0)("%i Byte(s) per Pixel \n", colourMap->format->BytesPerPixel); |
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389 | PRINTF(0)("Rshift : %i\n", colourMap->format->Rshift); |
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390 | PRINTF(0)("Bshift: %i\n", colourMap->format->Bshift); |
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391 | PRINTF(0)("Gshift: %i\n", colourMap->format->Gshift); |
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392 | PRINTF(0)("Rmask: %i\n", colourMap->format->Rmask); |
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393 | PRINTF(0)("Gmask: %i\n", colourMap->format->Gmask); |
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394 | } |
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395 | else PRINTF(0)("oops! couldn't load colorMap for some reason.\n"); |
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396 | |
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397 | |
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398 | |
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399 | if(colourMap != NULL) |
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400 | { |
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401 | colours = (unsigned char *) colourMap->pixels; |
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402 | hasColourMap = true; |
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403 | } |
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404 | else hasColourMap = false; |
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405 | |
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406 | |
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407 | heights = (unsigned char*) heightMap->pixels; |
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408 | |
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409 | |
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410 | } |
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411 | HeightMap::~HeightMap() |
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412 | { |
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413 | delete heightMap; |
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414 | } |
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415 | |
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416 | void HeightMap::load() |
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417 | { |
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418 | |
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419 | //Create a Dynamicly sized 2D-Array for Tiles |
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420 | tiles = new Tile** [heightMap->h/tileSize]; |
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421 | for(int i=0;i < heightMap->h/tileSize ; i++) |
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422 | tiles [i]= new (Tile* [heightMap->w /tileSize ]); |
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423 | |
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424 | //SetUp Arrays |
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425 | for(int i = 0; i < (heightMap->h - tileSize )/ tileSize; i ++) |
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426 | { |
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427 | for(int j = 0; j < (heightMap->w - tileSize )/ tileSize; j ++) |
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428 | { |
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429 | |
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430 | tiles[i][j] = new Tile( i*tileSize , j*tileSize , (i+1)*tileSize, (j+1)*tileSize , this ) ; |
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431 | } |
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432 | } |
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433 | |
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434 | } |
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435 | |
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436 | |
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437 | void HeightMap::draw() |
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438 | { |
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439 | const PNode* camera = State::getCamera(); |
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440 | Vector v = camera->getAbsCoor(); |
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441 | |
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442 | int i_min = 1; |
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443 | int i_max = (heightMap->h - tileSize )/ tileSize; |
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444 | int j_min = 1; |
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445 | int j_max= (heightMap->w - tileSize) / tileSize; |
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446 | |
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447 | |
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448 | |
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449 | for(int i = 1; i < i_max ; i ++) |
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450 | { |
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451 | for(int j = 1; j < j_max ; j++) |
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452 | { |
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453 | tiles[i][j]->draw(); |
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454 | } |
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455 | } |
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456 | |
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457 | } |
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458 | void HeightMap::generateNormalVectorField() |
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459 | { |
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460 | int delta = 1; |
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461 | heights = (unsigned char*) heightMap->pixels; |
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462 | |
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463 | //Create a Dynamicly sized 2D-Array to store our normals |
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464 | normalVectorField = new Vector* [heightMap->h]; |
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465 | for(int i=0;i<heightMap->h;i++) |
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466 | normalVectorField [i]= new (Vector [heightMap->w]); |
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467 | |
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468 | |
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469 | |
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470 | // !!! Does not yet calculate the normals of some border points!!!!! |
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471 | |
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472 | if(heightMap != NULL && heightMap->format->BitsPerPixel == 8 ) |
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473 | { |
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474 | SDL_LockSurface(heightMap); |
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475 | for(int i = 0 ; i < heightMap->h - 1 ; i ++) |
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476 | { |
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477 | for(int j = 0; j < heightMap->w - 1 ; j ++) |
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478 | { |
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479 | |
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480 | |
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481 | delta = (int)heights[j + (i+1)*(heightMap->w )] - (int) heights[j + i*(heightMap->w )]; |
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482 | Vector a = Vector(-scaleX,(float)delta*scaleY ,0.0f); |
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483 | |
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484 | delta = (int)heights[j+1 + i*(heightMap->w )] - (int)heights[j + i*(heightMap->w )]; |
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485 | Vector b = Vector(0.0f,(float) delta*scaleY ,scaleZ); |
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486 | |
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487 | |
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488 | normalVectorField[i][j] = b.cross(a); |
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489 | normalVectorField[i][j].normalize(); |
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490 | |
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491 | } |
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492 | } |
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493 | SDL_UnlockSurface(heightMap); |
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494 | |
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495 | } |
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496 | |
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497 | } |
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498 | |
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499 | |
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500 | void HeightMap::scale(Vector v) |
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501 | { |
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502 | scaleX = v.x; |
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503 | scaleY = v.y; |
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504 | scaleZ = v.z; |
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505 | } |
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506 | |
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507 | void HeightMap::setAbsCoor(Vector v) |
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508 | { |
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509 | offsetX = v.x; |
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510 | offsetY = v.y; |
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511 | offsetZ = v.z; |
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512 | } |
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513 | |
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514 | |
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515 | float HeightMap::getHeight(float x, float y) |
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516 | { |
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517 | |
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518 | //x -= offsetX; |
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519 | //y -= offsetZ; |
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520 | |
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521 | |
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522 | int xInt = (int)x / scaleX; x -= (float)xInt*scaleX; xInt = heightMap->h - xInt; |
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523 | int yInt = (int)y / scaleZ; y -= (float)yInt*scaleZ; /*yInt = heightMap->w - yInt;*/ |
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524 | |
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525 | if(xInt <= 0 || xInt >= heightMap->h || yInt <= 0 || yInt >= heightMap->w ) return shiftY; |
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526 | |
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527 | float height = heights[yInt + (xInt)*heightMap->w]*scaleY; |
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528 | |
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529 | float a = normalVectorField[(xInt)][yInt].x; |
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530 | float b = normalVectorField [(xInt)][yInt].z; |
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531 | float c = normalVectorField [(xInt)][yInt].y; |
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532 | |
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533 | height -= ( (a/c)*(x) + (b/c)*(y); |
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534 | |
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535 | return (height ); |
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536 | } |
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