1 |
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2 | #include "BBCEntity.h"
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3 |
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4 | namespace BBC {
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5 |
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6 | Entity::Entity(): references(0) // initialize references to 0
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7 | {
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8 | createSubEntity();
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9 | }
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10 |
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11 | Entity::~Entity()
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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 | void Entity::createSubEntity()
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17 | {
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18 | SubEntityPtr subEntityPtr((SubEntity*)new SubEntity());
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19 | mSubEntityList.push_back(subEntityPtr);
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20 | }
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21 |
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22 | void Entity::addSubEntity(SubEntityPtr value)
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23 | {
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24 | mSubEntityList.push_back(value);
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25 | }
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26 |
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27 | SubEntityPtr Entity::getSubEntity(unsigned int index)
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28 | {
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29 | return mSubEntityList[index];
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30 | }
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31 |
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32 | void Entity::removeSubEntity(unsigned int index)
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33 | {
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34 | mSubEntityList.erase(mSubEntityList.begin()+index);
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35 | }
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36 |
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37 | void Entity::setSubEntitiesDistinctVertexColours()
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38 | {
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39 | for (unsigned int iSubEntity = 0; iSubEntity < mSubEntityList.size(); iSubEntity++)
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40 | {
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41 | mSubEntityList[iSubEntity]->enableVertexColours(true);
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42 | float fRed = Ogre::Math::RangeRandom(0.0,1.0);
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43 | float fGreen = Ogre::Math::RangeRandom(0.0,1.0);
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44 | float fBlue = Ogre::Math::RangeRandom(0.0,1.0);
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45 | Ogre::ColourValue subEntityColour = Ogre::ColourValue(1.0,fRed,fGreen,fBlue);
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46 | for (unsigned int iVertex = 0; iVertex < mSubEntityList[iSubEntity]->getNumVertices(); iVertex++)
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47 | {
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48 | mSubEntityList[iSubEntity]->setVertexColour(iVertex, subEntityColour.getAsRGBA());
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49 | }
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50 | }
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51 | }
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52 |
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53 | MeshPtr Entity::getMesh()
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54 | {
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55 | return mMesh;
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56 | }
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57 |
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58 | void Entity::setMesh(MeshPtr value)
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59 | {
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60 | mMesh = value;
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61 | }
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62 |
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63 | unsigned int Entity::getEntityHandle() {
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64 | return mEntityHandle;
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65 | }
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66 |
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67 | void Entity::setEntityHandle(unsigned int value)
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68 | {
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69 | mEntityHandle = value;
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70 | }
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71 |
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72 | void Entity::loadMesh(bool mergeSubMeshes = false)
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73 | {
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74 | Ogre::Vector3 position = Ogre::Vector3::ZERO;
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75 | Ogre::Quaternion orient = Ogre::Quaternion(1.0,1.0,1.0,1.0);
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76 | Ogre::Vector3 scale = Ogre::Vector3::ZERO;
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77 | unsigned int coordset = 0;
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78 | unsigned short dimTexCoord = 2;
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79 |
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80 | getMeshPositions(position,orient,scale,mergeSubMeshes);
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81 | getMeshNormals(orient,scale,mergeSubMeshes);
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82 | getMeshVertexColours(mergeSubMeshes);
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83 | getMeshTexCoords(mergeSubMeshes);
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84 | getMeshFacesVerticesID(mergeSubMeshes);
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85 | }
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86 |
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87 | void Entity::sincronizeNumSubEntities()
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88 | {
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89 | if (this->getNumSubEntities() < mMesh->get()->getNumSubMeshes())
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90 | {
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91 | while (this->getNumSubEntities() < mMesh->get()->getNumSubMeshes())
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92 | {
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93 | this->createSubEntity();
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94 | }
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95 | }
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96 |
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97 | if (this->getNumSubEntities() > mMesh->get()->getNumSubMeshes())
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98 | {
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99 | while (this->getNumSubEntities() > mMesh->get()->getNumSubMeshes())
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100 | {
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101 | this->removeSubEntity(this->getNumSubEntities()-1);
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102 | }
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103 | }
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104 | }
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105 |
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106 | void Entity::getMeshPositions(Ogre::Vector3 position, Ogre::Quaternion orient, Ogre::Vector3 scale, bool mergeSubMeshes)
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107 | {
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108 | bool added_shared = false;
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109 | size_t current_offset = 0;
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110 | size_t shared_offset = 0;
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111 | size_t next_offset = 0;
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112 |
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113 | unsigned int numSubMeshes = mMesh->get()->getNumSubMeshes();
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114 | sincronizeNumSubEntities();
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115 |
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116 | added_shared = false;
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117 | for (unsigned short i = 0; i < mMesh->get()->getNumSubMeshes(); i++)
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118 | {
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119 | Ogre::SubMesh* subMesh = mMesh->get()->getSubMesh(i);
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120 | Ogre::VertexData* vertexData = subMesh->useSharedVertices ? mMesh->get()->sharedVertexData : subMesh->vertexData;
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121 |
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122 | if ((!subMesh->useSharedVertices) || (subMesh->useSharedVertices && !added_shared))
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123 | {
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124 | if (subMesh->useSharedVertices)
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125 | {
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126 | added_shared = true;
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127 | shared_offset = current_offset;
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128 | }
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129 |
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130 | const Ogre::VertexElement* positionElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
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131 | Ogre::HardwareVertexBufferSharedPtr vbuf = vertexData->vertexBufferBinding->getBuffer(positionElem->getSource());
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132 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
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133 | float* pReal;
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134 |
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135 | for(size_t j = 0; j < vertexData->vertexCount; ++j, vertex += vbuf->getVertexSize())
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136 | {
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137 | positionElem->baseVertexPointerToElement(vertex, &pReal);
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138 | Ogre::Vector3 position(pReal[0], pReal[1], pReal[2]);
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139 |
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140 | if (!mergeSubMeshes)
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141 | {
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142 | UniqueVertex uniqueVertex;
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143 | uniqueVertex.position = position;
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144 | this->getSubEntity(i)->addUniqueVertex(uniqueVertex);
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145 | }
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146 | else
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147 | {
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148 | UniqueVertex uniqueVertex;
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149 | uniqueVertex.position = position;
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150 |
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151 | this->getSubEntity(0)->addUniqueVertex(uniqueVertex);
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152 | }
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153 | }
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154 | vbuf->unlock();
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155 | next_offset += vertexData->vertexCount;
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156 | }
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157 | }
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158 | current_offset = next_offset;
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159 | }
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160 |
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161 |
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162 | void Entity::getMeshNormals(Ogre::Quaternion orient, Ogre::Vector3 scale, bool mergeSubMeshes)
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163 | {
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164 | bool added_shared = false;
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165 | size_t current_offset = 0;
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166 | size_t shared_offset = 0;
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167 | size_t next_offset = 0;
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168 |
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169 | unsigned int numSubMeshes = mMesh->get()->getNumSubMeshes();
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170 | sincronizeNumSubEntities();
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171 |
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172 | added_shared = false;
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173 | for (unsigned short i = 0; i < mMesh->get()->getNumSubMeshes(); i++)
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174 | {
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175 | Ogre::SubMesh* subMesh = mMesh->get()->getSubMesh(i);
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176 | Ogre::VertexData* vertexData = subMesh->useSharedVertices ? mMesh->get()->sharedVertexData : subMesh->vertexData;
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177 |
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178 | if ((!subMesh->useSharedVertices) || (subMesh->useSharedVertices && !added_shared))
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179 | {
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180 | if (subMesh->useSharedVertices)
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181 | {
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182 | added_shared = true;
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183 | shared_offset = current_offset;
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184 | }
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185 |
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186 | const Ogre::VertexElement* normalElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_NORMAL);
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187 | Ogre::HardwareVertexBufferSharedPtr vbuf = vertexData->vertexBufferBinding->getBuffer(normalElem->getSource());
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188 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
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189 | float* pReal;
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190 |
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191 | for(size_t j = 0; j < vertexData->vertexCount; ++j, vertex += vbuf->getVertexSize())
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192 | {
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193 | normalElem->baseVertexPointerToElement(vertex, &pReal);
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194 | Ogre::Vector3 normal(pReal[0], pReal[1], pReal[2]);
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195 |
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196 | if (!mergeSubMeshes)
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197 | {
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198 | this->getSubEntity(i)->setNormal(j,normal);
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199 | }
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200 | else
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201 | {
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202 | this->getSubEntity(0)->setNormal(j,normal);
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203 | }
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204 | }
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205 | vbuf->unlock();
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206 | next_offset += vertexData->vertexCount;
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207 | }
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208 | }
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209 | current_offset = next_offset;
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210 | }
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211 |
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212 | void Entity::getMeshVertexColours(bool mergeSubMeshes)
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213 | {
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214 | bool added_shared = false;
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215 | size_t current_offset = 0;
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216 | size_t shared_offset = 0;
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217 | size_t next_offset = 0;
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218 |
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219 | unsigned int numSubMeshes = mMesh->get()->getNumSubMeshes();
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220 | sincronizeNumSubEntities();
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221 |
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222 | added_shared = false;
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223 | for (unsigned short i = 0; i < mMesh->get()->getNumSubMeshes(); i++)
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224 | {
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225 | Ogre::SubMesh* subMesh = mMesh->get()->getSubMesh(i);
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226 | Ogre::VertexData* vertexData = subMesh->useSharedVertices ? mMesh->get()->sharedVertexData : subMesh->vertexData;
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227 |
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228 | if ((!subMesh->useSharedVertices) || (subMesh->useSharedVertices && !added_shared))
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229 | {
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230 | if (subMesh->useSharedVertices)
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231 | {
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232 | added_shared = true;
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233 | shared_offset = current_offset;
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234 | }
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235 |
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236 | const Ogre::VertexElement* colourElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_DIFFUSE);
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237 | if (colourElem)
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238 | {
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239 | //Ogre::LogManager::getSingleton().logMessage("Has vertex colours!");
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240 | Ogre::HardwareVertexBufferSharedPtr vbuf = vertexData->vertexBufferBinding->getBuffer(colourElem->getSource());
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241 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
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242 | Ogre::RGBA *pSrcRGBA;
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243 |
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244 | for(size_t j = 0; j < vertexData->vertexCount; ++j, vertex += vbuf->getVertexSize())
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245 | {
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246 | if (colourElem)
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247 | {
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248 | colourElem->baseVertexPointerToElement(vertex, &pSrcRGBA);
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249 | }
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250 |
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251 | Ogre::ColourValue colour((Ogre::RGBA)(*pSrcRGBA));
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252 |
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253 | if (!mergeSubMeshes)
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254 | {
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255 | this->getSubEntity(i)->setVertexColour(j,colour.getAsRGBA());
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256 | }
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257 | else
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258 | {
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259 | this->getSubEntity(0)->setVertexColour(j,colour.getAsRGBA());
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260 | }
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261 | }
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262 | vbuf->unlock();
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263 | next_offset += vertexData->vertexCount;
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264 |
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265 | if (!mergeSubMeshes)
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266 | {
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267 | this->getSubEntity(i)->enableVertexColours(true);
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268 | }
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269 | else
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270 | {
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271 | this->getSubEntity(0)->enableVertexColours(true);
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272 | }
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273 | }
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274 | }
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275 | }
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276 | current_offset = next_offset;
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277 | }
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278 |
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279 | void Entity::getMeshTexCoords(bool mergeSubMeshes)
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280 | {
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281 | bool added_shared = false;
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282 | size_t current_offset = 0;
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283 | size_t shared_offset = 0;
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284 | size_t next_offset = 0;
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285 |
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286 | unsigned int numSubMeshes = mMesh->get()->getNumSubMeshes();
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287 | sincronizeNumSubEntities();
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288 |
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289 | added_shared = false;
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290 | for (unsigned short i = 0; i < mMesh->get()->getNumSubMeshes(); i++)
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291 | {
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292 | Ogre::SubMesh* subMesh = mMesh->get()->getSubMesh(i);
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293 | Ogre::VertexData* vertexData = subMesh->useSharedVertices ? mMesh->get()->sharedVertexData : subMesh->vertexData;
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294 |
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295 | if ((!subMesh->useSharedVertices) || (subMesh->useSharedVertices && !added_shared))
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296 | {
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297 | if (subMesh->useSharedVertices)
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298 | {
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299 | added_shared = true;
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300 | shared_offset = current_offset;
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301 | }
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302 |
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303 | const Ogre::VertexElement* texcoordElem = vertexData->vertexDeclaration->findElementBySemantic(Ogre::VES_TEXTURE_COORDINATES);
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304 | Ogre::HardwareVertexBufferSharedPtr vbuf = vertexData->vertexBufferBinding->getBuffer(texcoordElem->getSource());
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305 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
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306 |
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307 | Ogre::VertexDeclaration* decl = vertexData->vertexDeclaration;
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308 | Ogre::VertexBufferBinding* bind = vertexData->vertexBufferBinding;
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309 | Ogre::VertexBufferBinding::VertexBufferBindingMap::const_iterator b, bend;
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310 | bend = bind->getBindings().end();
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311 | // Iterate over buffers
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312 | for (b = bind->getBindings().begin(); b != bend; ++b)
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313 | {
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314 | const Ogre::HardwareVertexBufferSharedPtr vbuf = b->second;
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315 | unsigned short bufferIdx = b->first;
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316 | // Get all the elements that relate to this buffer
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317 | Ogre::VertexDeclaration::VertexElementList elems = decl->findElementsBySource(bufferIdx);
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318 | Ogre::VertexDeclaration::VertexElementList::iterator it, itend;
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319 | itend = elems.end();
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320 |
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321 | // Skim over the elements to set up the general data
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322 | unsigned short numTextureCoords = 0;
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323 | std::vector<unsigned int> baseTexCoordSetIndex;
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324 | for (it = elems.begin(); it != itend; ++it)
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325 | {
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326 | Ogre::VertexElement& elem = *it;
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327 | if (elem.getSemantic() == Ogre::VES_TEXTURE_COORDINATES)
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328 | {
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329 | if (numTextureCoords == 0)
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330 | {
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331 | baseTexCoordSetIndex.push_back(0);
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332 | baseTexCoordSetIndex.push_back(Ogre::VertexElement::getTypeCount(elem.getType()));
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333 | }
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334 | ++numTextureCoords;
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335 | }
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336 | }
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337 |
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338 | // There is _no_ baseVertexPointerToElement() which takes an Ogre::Real or a double
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339 | // as a second argument. So make it float, to avoid trouble when Ogre::Real will be
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340 | // compiled/typedefed as double:
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341 | // Ogre::Real* pReal;
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342 | float* pReal;
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343 |
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344 | unsigned int baseTexCoord = 0;
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345 | unsigned int texCoordSet = 0;
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346 | unsigned int dimBaseTexCoord = 0;
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347 | for (unsigned int texCoordSet = 0; texCoordSet < numTextureCoords; texCoordSet++)
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348 | {
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349 | for (unsigned int iTexCoordSet = 0; iTexCoordSet <= texCoordSet; iTexCoordSet++)
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350 | {
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351 | baseTexCoord = baseTexCoord + baseTexCoordSetIndex[iTexCoordSet];
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352 | }
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353 | unsigned short dimTexCoord = (unsigned short)baseTexCoordSetIndex[texCoordSet+1];
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354 | for (size_t j = 0; j < vertexData->vertexCount; j++, vertex += vbuf->getVertexSize())
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355 | {
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356 | texcoordElem->baseVertexPointerToElement(vertex, &pReal);
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357 | Ogre::Vector3 texcoord;
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358 | if (baseTexCoordSetIndex[texCoordSet+1] == 2)
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359 | {
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360 | texcoord = Ogre::Vector3(pReal[baseTexCoord + 0], pReal[baseTexCoord + 1], 0.0);
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361 | dimBaseTexCoord = 2;
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362 | }
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363 | else if (baseTexCoordSetIndex[texCoordSet + 1] == 3)
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364 | {
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365 | texcoord = Ogre::Vector3(pReal[baseTexCoord + 0], pReal[baseTexCoord + 1], pReal[baseTexCoord + 2]);
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366 | dimBaseTexCoord = 3;
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367 | }
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368 |
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369 | if (!mergeSubMeshes)
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370 | {
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371 | this->getSubEntity(i)->setTexCoord(j,texCoordSet,texcoord);
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372 | }
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373 | else
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374 | {
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375 | this->getSubEntity(0)->setTexCoord(j,texCoordSet,texcoord);
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376 | }
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377 | }
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378 |
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379 | if (!mergeSubMeshes)
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380 | {
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381 | this->getSubEntity(i)->addTextureCoordSet(dimBaseTexCoord);
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382 | }
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383 | else
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384 | {
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385 | if (i == 0)
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386 | {
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387 | this->getSubEntity(0)->addTextureCoordSet(dimBaseTexCoord);
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388 | }
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389 | }
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390 | }
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391 | }
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392 | vbuf->unlock();
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393 | next_offset += vertexData->vertexCount;
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394 | }
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395 | }
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396 | current_offset = next_offset;
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397 | }
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398 |
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399 | void Entity::getMeshFacesVerticesID(bool mergeSubMeshes)
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400 | {
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401 | bool added_shared = false;
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402 | size_t current_offset = 0;
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403 | size_t shared_offset = 0;
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404 | size_t next_offset = 0;
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405 | size_t index_offset = 0;
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406 |
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407 | unsigned int numSubMeshes = mMesh->get()->getNumSubMeshes();
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408 | sincronizeNumSubEntities();
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409 |
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410 | added_shared = false;
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411 |
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412 | // Run through the submeshes again, adding the data into the arrays
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413 | for ( unsigned short i = 0; i < mMesh->get()->getNumSubMeshes(); ++i)
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414 | {
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415 | Ogre::SubMesh* submesh = mMesh->get()->getSubMesh(i);
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416 |
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417 | Ogre::VertexData* vertex_data = submesh->useSharedVertices ? mMesh->get()->sharedVertexData : submesh->vertexData;
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418 |
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419 | if((!submesh->useSharedVertices)||(submesh->useSharedVertices && !added_shared))
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420 | {
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421 | if(submesh->useSharedVertices)
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422 | {
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423 | added_shared = true;
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424 | shared_offset = current_offset;
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425 | }
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426 | const Ogre::VertexElement* texcoordElem =
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427 | vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION);
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428 |
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429 | Ogre::HardwareVertexBufferSharedPtr vbuf =
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430 | vertex_data->vertexBufferBinding->getBuffer(texcoordElem->getSource());
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431 |
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432 | unsigned char* vertex =
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433 | static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
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434 |
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435 | vbuf->unlock();
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436 | next_offset += vertex_data->vertexCount;
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437 | }
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438 |
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439 | Ogre::IndexData* index_data = submesh->indexData;
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440 | size_t numTris = index_data->indexCount / 3;
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441 | Ogre::HardwareIndexBufferSharedPtr ibuf = index_data->indexBuffer;
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442 |
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443 | bool use32bitindexes = (ibuf->getType() == Ogre::HardwareIndexBuffer::IT_32BIT);
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444 |
|
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445 | unsigned long* pLong = static_cast<unsigned long*>(ibuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY));
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446 | unsigned short* pShort = reinterpret_cast<unsigned short*>(pLong);
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447 |
|
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448 | size_t offset = (submesh->useSharedVertices)? shared_offset : current_offset;
|
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449 |
|
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450 |
|
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451 | if ( use32bitindexes )
|
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452 | {
|
---|
453 | for ( size_t k = 0; k < numTris*3; k=k+3)
|
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454 | {
|
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455 | if (!mergeSubMeshes)
|
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456 | {
|
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457 | Ogre::Vector3 indices(k,k+1,k+2);
|
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458 | this->getSubEntity(i)->addFaceVerticesIDs(indices);
|
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459 | }
|
---|
460 | else
|
---|
461 | {
|
---|
462 | Ogre::Vector3 indices = Ogre::Vector3(pLong[k] + static_cast<unsigned long>(offset),pLong[k+1] + static_cast<unsigned long>(offset),pLong[k+2] + static_cast<unsigned long>(offset));
|
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463 | this->getSubEntity(0)->addFaceVerticesIDs(indices);
|
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464 | }
|
---|
465 | index_offset++;
|
---|
466 | }
|
---|
467 | }
|
---|
468 | else
|
---|
469 | {
|
---|
470 | for ( size_t k = 0; k < numTris*3; k=k+3)
|
---|
471 | {
|
---|
472 | if (!mergeSubMeshes)
|
---|
473 | {
|
---|
474 | Ogre::Vector3 indices(k,k+1,k+2);
|
---|
475 | this->getSubEntity(i)->addFaceVerticesIDs(indices);
|
---|
476 | }
|
---|
477 | else
|
---|
478 | {
|
---|
479 | Ogre::Vector3 indices = Ogre::Vector3(static_cast<unsigned long>(pShort[k]) + static_cast<unsigned long>(offset),static_cast<unsigned long>(pShort[k+1]) + static_cast<unsigned long>(offset),static_cast<unsigned long>(pShort[k+2]) + static_cast<unsigned long>(offset));
|
---|
480 | this->getSubEntity(0)->addFaceVerticesIDs(indices);
|
---|
481 | }
|
---|
482 | index_offset++;
|
---|
483 | }
|
---|
484 | }
|
---|
485 |
|
---|
486 | ibuf->unlock();
|
---|
487 | current_offset = next_offset;
|
---|
488 | }
|
---|
489 | }
|
---|
490 |
|
---|
491 | unsigned int Entity::getNumSubEntities()
|
---|
492 | {
|
---|
493 | return mSubEntityList.size();
|
---|
494 | }
|
---|
495 |
|
---|
496 | void Entity::mergeSubEntities()
|
---|
497 | {
|
---|
498 | if (mSubEntityList.size() > 1)
|
---|
499 | {
|
---|
500 | unsigned int currentMaxNumVertices = mSubEntityList[0]->getNumVertices();
|
---|
501 | unsigned int iIDVertex = currentMaxNumVertices;
|
---|
502 | for (unsigned int iSubEntity = 1; iSubEntity < mSubEntityList.size(); iSubEntity++)
|
---|
503 | {
|
---|
504 | if (mSubEntityList[iSubEntity]->getNumTexCoordSets() == mSubEntityList[0]->getNumTexCoordSets())
|
---|
505 | {
|
---|
506 | for (unsigned int iVertex = 0; iVertex < mSubEntityList[iSubEntity]->getNumVertices(); iVertex++)
|
---|
507 | {
|
---|
508 | mSubEntityList[0]->addUniqueVertex(mSubEntityList[iSubEntity]->getUniqueVertex(iVertex));
|
---|
509 | }
|
---|
510 |
|
---|
511 | // Vertices IDs go from [0,NUMVERT-1] -> First new vertex should be NUMVERT...
|
---|
512 | for (unsigned int iFaceVerticesIDs = 0; iFaceVerticesIDs < mSubEntityList[iSubEntity]->getNumFaces(); iFaceVerticesIDs++)
|
---|
513 | {
|
---|
514 | mSubEntityList[0]->addFaceVerticesIDs(Ogre::Vector3(iIDVertex,iIDVertex+1,iIDVertex+2));
|
---|
515 | iIDVertex = iIDVertex + 3;
|
---|
516 | }
|
---|
517 | }
|
---|
518 | else
|
---|
519 | {
|
---|
520 | Ogre::LogManager::getSingleton().logMessage("Error: The number of texture coord. sets is not the same in all the subentities...");
|
---|
521 | }
|
---|
522 | }
|
---|
523 |
|
---|
524 | for (unsigned int iSubEntity = 1; iSubEntity < mSubEntityList.size(); iSubEntity)
|
---|
525 | {
|
---|
526 | mSubEntityList.erase(mSubEntityList.begin()+iSubEntity);
|
---|
527 | }
|
---|
528 | }
|
---|
529 | }
|
---|
530 |
|
---|
531 | }
|
---|