1 | #include "ResourceManager.h"
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2 | #include "Matrix4x4.h"
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3 | #include "Geometry.h"
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4 | #include "SceneEntity.h"
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5 | #include "Material.h"
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6 | #include "Texture.h"
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7 | #include "gzstream.h"
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8 | #include "Matrix4x4.h"
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9 | #include "Vector3.h"
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10 | #include "Transform3.h"
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11 | #include "Shape.h"
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12 | #include "LODInfo.h"
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13 |
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14 |
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15 | using namespace std;
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16 |
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17 |
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18 | namespace CHCDemoEngine
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19 | {
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20 |
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21 |
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22 | ResourceManager::~ResourceManager()
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23 | {
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24 | // delete all resources.
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25 | CLEAR_CONTAINER(mSceneEntities);
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26 | CLEAR_CONTAINER(mGeometry);
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27 | CLEAR_CONTAINER(mMaterials);
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28 | CLEAR_CONTAINER(mTextures);
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29 | CLEAR_CONTAINER(mTrafos);
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30 | CLEAR_CONTAINER(mShapes);
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31 | CLEAR_CONTAINER(mLODs);
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32 | }
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33 |
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34 |
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35 | SceneEntity *ResourceManager::LoadSceneEntity(igzstream &str)
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36 | {
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37 | bool hasTrafo;
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38 | str.read(reinterpret_cast<char *>(&hasTrafo), sizeof(bool));
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39 |
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40 | SceneEntity *sceneGeom;
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41 | Transform3 *trafo;
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42 |
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43 | if (!hasTrafo)
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44 | {
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45 | // identity
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46 | trafo = new Transform3();
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47 | }
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48 | else
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49 | {
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50 | Matrix4x4 m;
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51 | str.read(reinterpret_cast<char *>(m.x), sizeof(Matrix4x4));
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52 |
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53 | trafo = new Transform3(m);
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54 | }
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55 |
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56 | mTrafos.push_back(trafo);
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57 |
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58 | sceneGeom = new SceneEntity(trafo);
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59 |
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60 |
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61 | ///////////////
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62 | //-- load lod levels
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63 |
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64 | // note: lods must be ordered from smallest distance to largest
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65 | int numLODs;
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66 | str.read(reinterpret_cast<char *>(&numLODs), sizeof(int));
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67 |
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68 | for (int i = 0; i < numLODs; ++ i)
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69 | {
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70 | float dist;
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71 | str.read(reinterpret_cast<char *>(&dist), sizeof(float));
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72 |
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73 | int numShapes;
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74 | str.read(reinterpret_cast<char *>(&numShapes), sizeof(int));
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75 |
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76 | LODLevel *lodLevel = new LODLevel(dist);
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77 |
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78 | for (int j = 0; j < numShapes; ++ j)
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79 | {
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80 | int shapeId;
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81 | str.read(reinterpret_cast<char *>(&shapeId), sizeof(int));
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82 |
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83 | Geometry *geom = mGeometryTable[shapeId];
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84 | Material *mat = mMaterialTable[shapeId];
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85 |
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86 | // create shape
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87 | Shape *shape = new Shape(geom, mat, sceneGeom);
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88 |
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89 | mShapes.push_back(shape);
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90 |
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91 | sceneGeom->AddShape(shape);
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92 | lodLevel->AddShape(shape);
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93 | }
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94 |
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95 | mLODs.push_back(lodLevel);
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96 | sceneGeom->AddLODLevel(lodLevel);
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97 | }
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98 |
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99 | return sceneGeom;
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100 | }
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101 |
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102 |
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103 | void ResourceManager::LoadTextures(igzstream &str)
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104 | {
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105 | int numTextures;
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106 | str.read(reinterpret_cast<char *>(&numTextures), sizeof(int));
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107 |
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108 | for (int i = 0; i < numTextures; ++ i)
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109 | {
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110 | // load texture name
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111 | int texnameSize;
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112 | str.read(reinterpret_cast<char *>(&texnameSize), sizeof(int));
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113 |
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114 | char *texname = new char[texnameSize];
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115 | str.read(texname, sizeof(char) * texnameSize);
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116 |
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117 | Texture *tex = new Texture(model_path + texname);
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118 |
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119 | int boundS, boundT;
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120 |
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121 | str.read(reinterpret_cast<char *>(&boundS), sizeof(int));
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122 | str.read(reinterpret_cast<char *>(&boundT), sizeof(int));
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123 |
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124 | tex->SetBoundaryModeS(boundS);
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125 | tex->SetBoundaryModeT(boundT);
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126 |
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127 | tex->Create();
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128 |
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129 | mTextureTable[i] = tex;
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130 | mTextures.push_back(tex);
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131 | }
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132 |
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133 | cout << "loaded " << (int)mTextureTable.size() << " textures" << endl;
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134 | }
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135 |
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136 |
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137 | void ResourceManager::LoadShapes(igzstream &str)
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138 | {
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139 | int numShapes;
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140 | str.read(reinterpret_cast<char *>(&numShapes), sizeof(int));
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141 |
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142 | for (int i = 0; i < numShapes; ++ i)
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143 | {
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144 | Geometry *geom = LoadGeometry(str);
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145 | Material *mat = LoadMaterial(str);
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146 |
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147 | mGeometryTable[i] = geom;
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148 | mMaterialTable[i] = mat;
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149 |
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150 | mGeometry.push_back(geom);
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151 | mMaterials.push_back(mat);
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152 | }
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153 |
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154 | cout << "loaded " << (int)mGeometryTable.size() << " shapes" << endl;
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155 | }
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156 |
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157 |
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158 | Material *ResourceManager::LoadMaterial(igzstream &str)
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159 | {
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160 | // default material
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161 | Material *mat = new Material();
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162 |
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163 | // texture
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164 | int texId;
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165 | str.read(reinterpret_cast<char *>(&texId), sizeof(int));
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166 |
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167 | if (texId >= 0)
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168 | mat->SetTexture(mTextureTable[texId]);
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169 |
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170 | str.read(reinterpret_cast<char *>(&mat->mAlphaTestEnabled), sizeof(bool));
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171 |
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172 | str.read(reinterpret_cast<char *>(&mat->mCullFaceEnabled), sizeof(bool));
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173 |
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174 | // material
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175 | bool hasMaterial;
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176 | str.read(reinterpret_cast<char *>(&hasMaterial), sizeof(bool));
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177 |
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178 | if (hasMaterial)
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179 | {
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180 | // only write rgb part of the material
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181 | str.read(reinterpret_cast<char *>(&mat->mAmbientColor), sizeof(Vector3));
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182 | str.read(reinterpret_cast<char *>(&mat->mDiffuseColor), sizeof(Vector3));
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183 | str.read(reinterpret_cast<char *>(&mat->mEmmisiveColor), sizeof(Vector3));
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184 | str.read(reinterpret_cast<char *>(&mat->mSpecularColor), sizeof(Vector3));
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185 | }
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186 |
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187 | return mat;
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188 | }
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189 |
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190 |
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191 | Geometry *ResourceManager::LoadGeometry(igzstream &str)
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192 | {
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193 | Vector3 *vertices;
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194 | Vector3 *normals;
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195 | Texcoord2 *texcoords;
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196 |
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197 |
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198 | //////////////
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199 | //-- read in vertices
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200 |
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201 | int vertexCount;
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202 | str.read(reinterpret_cast<char *>(&vertexCount), sizeof(int));
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203 |
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204 | // end of file reached
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205 | if (str.eof()) return NULL;
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206 |
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207 | //cout << "vertexcount: " << vertexCount << endl;
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208 |
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209 | vertices = new Vector3[vertexCount];
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210 | str.read(reinterpret_cast<char *>(vertices), sizeof(Vector3) * vertexCount);
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211 |
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212 | normals = new Vector3[vertexCount];
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213 | str.read(reinterpret_cast<char *>(normals), sizeof(Vector3) * vertexCount);
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214 |
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215 | int texCoordCount;
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216 | str.read(reinterpret_cast<char *>(&texCoordCount), sizeof(int));
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217 |
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218 | if (texCoordCount)
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219 | {
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220 | texcoords = new Texcoord2[texCoordCount];
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221 | str.read(reinterpret_cast<char *>(texcoords), sizeof(Texcoord2) * texCoordCount);
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222 | }
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223 | else
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224 | {
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225 | texcoords = NULL;
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226 | }
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227 |
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228 | return new Geometry(vertices, normals, texcoords, vertexCount, true);
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229 | //return new Geometry(vertices, normals, texcoords, vertexCount, false);
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230 | }
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231 |
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232 |
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233 | void ResourceManager::LoadSceneEntities(igzstream &str, SceneEntityContainer &entities)
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234 | {
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235 | int entityCount;
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236 | str.read(reinterpret_cast<char *>(&entityCount), sizeof(int));
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237 |
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238 | entities.reserve(entityCount);
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239 |
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240 | for (int i = 0; i < entityCount; ++ i)
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241 | {
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242 | SceneEntity *ent = LoadSceneEntity(str);
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243 |
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244 | // return loaded entities
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245 | entities.push_back(ent);
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246 | // also store internally
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247 | mSceneEntities.push_back(ent);
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248 | }
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249 |
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250 | cout << "loaded " << entityCount << " scene entities" << endl;
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251 | }
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252 |
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253 |
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254 | bool ResourceManager::Load(const std::string &filename, SceneEntityContainer &entities)
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255 | {
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256 | igzstream istr(filename.c_str());
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257 |
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258 | if (!istr.is_open())
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259 | return false;
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260 |
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261 | cout << "loading textures" << endl;
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262 |
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263 | // load the texture table
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264 | LoadTextures(istr);
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265 |
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266 | cout << "loading shapes (geometry + materials)" << endl;
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267 |
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268 | // load the shapees
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269 | LoadShapes(istr);
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270 |
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271 | cout << "loading scene entites" << endl;
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272 | LoadSceneEntities(istr, entities);
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273 |
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274 | cout << "bin loading finished" << endl;
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275 |
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276 | // clean up
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277 | mTextureTable.clear();
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278 | mGeometryTable.clear();
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279 | mMaterialTable.clear();
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280 |
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281 | return true;
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282 | }
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283 |
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284 | }
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