1 | /*************************************************************************** |
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2 | |
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3 | This source file is part of OGREBULLET |
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4 | (Object-oriented Graphics Rendering Engine Bullet Wrapper) |
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5 | For the latest info, see http://www.ogre3d.org/phpBB2addons/viewforum.php?f=10 |
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6 | |
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7 | Copyright (c) 2007 tuan.kuranes@gmail.com (Use it Freely, even Statically, but have to contribute any changes) |
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8 | |
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9 | |
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10 | |
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11 | This program is free software; you can redistribute it and/or modify it under |
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12 | the terms of the GPL General Public License with runtime exception as published by the Free Software |
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13 | Foundation; either version 2 of the License, or (at your option) any later |
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14 | version. |
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15 | |
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16 | This program is distributed in the hope that it will be useful, but WITHOUT |
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17 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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18 | FOR A PARTICULAR PURPOSE. See the GPL General Public License with runtime exception for more details. |
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19 | |
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20 | You should have received a copy of the GPL General Public License with runtime exception along with |
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21 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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22 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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23 | http://www.gnu.org/licenses/old-licenses/gpl-2.0.html |
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24 | ----------------------------------------------------------------------------- |
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25 | */ |
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26 | |
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27 | #include "OgreBulletCollisions.h" |
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28 | |
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29 | #include "Utils/OgreBulletCollisionsMeshToShapeConverter.h" |
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30 | |
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31 | #include "Shapes/OgreBulletCollisionsTrimeshShape.h" |
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32 | #include "Shapes/OgreBulletCollisionsCylinderShape.h" |
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33 | #include "Shapes/OgreBulletCollisionsSphereShape.h" |
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34 | #include "Shapes/OgreBulletCollisionsBoxShape.h" |
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35 | #include "Shapes/OgreBulletCollisionsConvexHullShape.h" |
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36 | #include "Shapes/OgreBulletCollisionsCapsuleShape.h" |
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37 | |
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38 | using namespace OgreBulletCollisions; |
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39 | using namespace Ogre; |
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40 | |
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41 | //------------------------------------------------------------------------------------------------ |
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42 | void VertexIndexToShape::addStaticVertexData(const VertexData *vertex_data) |
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43 | { |
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44 | if (!vertex_data) |
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45 | return; |
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46 | |
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47 | const VertexData *data = vertex_data; |
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48 | |
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49 | const unsigned int prev_size = mVertexCount; |
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50 | mVertexCount += (unsigned int)data->vertexCount; |
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51 | |
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52 | Ogre::Vector3* tmp_vert = new Ogre::Vector3[mVertexCount]; |
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53 | if (mVertexBuffer) |
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54 | { |
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55 | memcpy(tmp_vert, mVertexBuffer, sizeof(Vector3) * prev_size); |
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56 | delete[] mVertexBuffer; |
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57 | } |
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58 | mVertexBuffer = tmp_vert; |
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59 | |
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60 | // Get the positional buffer element |
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61 | { |
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62 | const Ogre::VertexElement* posElem = data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION); |
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63 | Ogre::HardwareVertexBufferSharedPtr vbuf = data->vertexBufferBinding->getBuffer(posElem->getSource()); |
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64 | const unsigned int vSize = (unsigned int)vbuf->getVertexSize(); |
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65 | |
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66 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY)); |
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67 | float* pReal; |
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68 | Ogre::Vector3 * curVertices = &mVertexBuffer[prev_size]; |
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69 | const unsigned int vertexCount = (unsigned int)data->vertexCount; |
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70 | for(unsigned int j = 0; j < vertexCount; ++j) |
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71 | { |
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72 | posElem->baseVertexPointerToElement(vertex, &pReal); |
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73 | vertex += vSize; |
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74 | |
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75 | curVertices->x = (*pReal++); |
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76 | curVertices->y = (*pReal++); |
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77 | curVertices->z = (*pReal++); |
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78 | |
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79 | *curVertices = mTransform * (*curVertices); |
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80 | |
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81 | curVertices++; |
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82 | } |
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83 | vbuf->unlock(); |
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84 | } |
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85 | } |
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86 | |
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87 | //------------------------------------------------------------------------------------------------ |
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88 | void VertexIndexToShape::addAnimatedVertexData(const Ogre::VertexData *vertex_data, |
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89 | const Ogre::VertexData *blend_data, |
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90 | const Ogre::Mesh::IndexMap *indexMap) |
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91 | { |
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92 | // Get the bone index element |
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93 | assert(vertex_data); |
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94 | |
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95 | const VertexData *data = blend_data; |
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96 | const unsigned int prev_size = mVertexCount; |
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97 | mVertexCount += (unsigned int)data->vertexCount; |
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98 | Ogre::Vector3* tmp_vert = new Ogre::Vector3[mVertexCount]; |
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99 | if (mVertexBuffer) |
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100 | { |
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101 | memcpy(tmp_vert, mVertexBuffer, sizeof(Vector3) * prev_size); |
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102 | delete[] mVertexBuffer; |
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103 | } |
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104 | mVertexBuffer = tmp_vert; |
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105 | |
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106 | // Get the positional buffer element |
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107 | { |
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108 | const Ogre::VertexElement* posElem = data->vertexDeclaration->findElementBySemantic(Ogre::VES_POSITION); |
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109 | assert (posElem); |
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110 | Ogre::HardwareVertexBufferSharedPtr vbuf = data->vertexBufferBinding->getBuffer(posElem->getSource()); |
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111 | const unsigned int vSize = (unsigned int)vbuf->getVertexSize(); |
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112 | |
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113 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY)); |
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114 | float* pReal; |
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115 | Ogre::Vector3 * curVertices = &mVertexBuffer[prev_size]; |
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116 | const unsigned int vertexCount = (unsigned int)data->vertexCount; |
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117 | for(unsigned int j = 0; j < vertexCount; ++j) |
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118 | { |
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119 | posElem->baseVertexPointerToElement(vertex, &pReal); |
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120 | vertex += vSize; |
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121 | |
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122 | curVertices->x = (*pReal++); |
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123 | curVertices->y = (*pReal++); |
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124 | curVertices->z = (*pReal++); |
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125 | |
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126 | *curVertices = mTransform * (*curVertices); |
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127 | |
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128 | curVertices++; |
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129 | } |
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130 | vbuf->unlock(); |
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131 | } |
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132 | { |
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133 | const Ogre::VertexElement* bneElem = vertex_data->vertexDeclaration->findElementBySemantic(Ogre::VES_BLEND_INDICES); |
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134 | assert (bneElem); |
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135 | |
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136 | Ogre::HardwareVertexBufferSharedPtr vbuf = vertex_data->vertexBufferBinding->getBuffer(bneElem->getSource()); |
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137 | const unsigned int vSize = (unsigned int)vbuf->getVertexSize(); |
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138 | unsigned char* vertex = static_cast<unsigned char*>(vbuf->lock(Ogre::HardwareBuffer::HBL_READ_ONLY)); |
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139 | |
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140 | unsigned char* pBone; |
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141 | |
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142 | if (!mBoneIndex) |
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143 | mBoneIndex = new BoneIndex(); |
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144 | BoneIndex::iterator i; |
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145 | |
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146 | Ogre::Vector3 * curVertices = &mVertexBuffer[prev_size]; |
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147 | |
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148 | const unsigned int vertexCount = (unsigned int)vertex_data->vertexCount; |
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149 | for(unsigned int j = 0; j < vertexCount; ++j) |
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150 | { |
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151 | bneElem->baseVertexPointerToElement(vertex, &pBone); |
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152 | vertex += vSize; |
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153 | |
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154 | const unsigned char currBone = (indexMap) ? (*indexMap)[*pBone] : *pBone; |
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155 | i = mBoneIndex->find (currBone); |
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156 | Vector3Array* l = 0; |
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157 | if (i == mBoneIndex->end()) |
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158 | { |
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159 | l = new Vector3Array; |
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160 | mBoneIndex->insert(BoneKeyIndex(currBone, l)); |
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161 | } |
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162 | else |
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163 | { |
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164 | l = i->second; |
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165 | } |
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166 | |
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167 | l->push_back(*curVertices); |
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168 | |
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169 | curVertices++; |
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170 | } |
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171 | vbuf->unlock(); |
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172 | } |
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173 | } |
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174 | |
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175 | //------------------------------------------------------------------------------------------------ |
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176 | void VertexIndexToShape::addIndexData(IndexData *data, const unsigned int offset) |
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177 | { |
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178 | const unsigned int prev_size = mIndexCount; |
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179 | mIndexCount += (unsigned int)data->indexCount; |
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180 | |
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181 | unsigned int* tmp_ind = new unsigned int[mIndexCount]; |
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182 | if (mIndexBuffer) |
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183 | { |
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184 | memcpy (tmp_ind, mIndexBuffer, sizeof(unsigned int) * prev_size); |
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185 | delete[] mIndexBuffer; |
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186 | } |
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187 | mIndexBuffer = tmp_ind; |
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188 | |
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189 | const unsigned int numTris = (unsigned int) data->indexCount / 3; |
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190 | HardwareIndexBufferSharedPtr ibuf = data->indexBuffer; |
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191 | const bool use32bitindexes = (ibuf->getType() == HardwareIndexBuffer::IT_32BIT); |
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192 | unsigned int index_offset = prev_size; |
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193 | |
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194 | if (use32bitindexes) |
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195 | { |
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196 | const unsigned int* pInt = static_cast<unsigned int*>(ibuf->lock(HardwareBuffer::HBL_READ_ONLY)); |
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197 | for(unsigned int k = 0; k < numTris; ++k) |
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198 | { |
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199 | mIndexBuffer[index_offset ++] = offset + *pInt++; |
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200 | mIndexBuffer[index_offset ++] = offset + *pInt++; |
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201 | mIndexBuffer[index_offset ++] = offset + *pInt++; |
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202 | } |
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203 | ibuf->unlock(); |
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204 | } |
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205 | else |
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206 | { |
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207 | const unsigned short* pShort = static_cast<unsigned short*>(ibuf->lock(HardwareBuffer::HBL_READ_ONLY)); |
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208 | for(unsigned int k = 0; k < numTris; ++k) |
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209 | { |
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210 | mIndexBuffer[index_offset ++] = offset + static_cast<unsigned int> (*pShort++); |
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211 | mIndexBuffer[index_offset ++] = offset + static_cast<unsigned int> (*pShort++); |
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212 | mIndexBuffer[index_offset ++] = offset + static_cast<unsigned int> (*pShort++); |
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213 | } |
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214 | ibuf->unlock(); |
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215 | } |
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216 | |
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217 | } |
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218 | //------------------------------------------------------------------------------------------------ |
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219 | Real VertexIndexToShape::getRadius() |
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220 | { |
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221 | if (mBoundRadius == (-1)) |
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222 | { |
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223 | getSize(); |
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224 | mBoundRadius = (std::max(mBounds.x,std::max(mBounds.y,mBounds.z)) * 0.5); |
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225 | } |
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226 | return mBoundRadius; |
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227 | } |
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228 | //------------------------------------------------------------------------------------------------ |
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229 | Vector3 VertexIndexToShape::getSize() |
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230 | { |
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231 | const unsigned int vCount = getVertexCount(); |
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232 | if (mBounds == Ogre::Vector3(-1,-1,-1) && vCount > 0) |
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233 | { |
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234 | |
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235 | const Ogre::Vector3 * const v = getVertices(); |
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236 | |
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237 | Ogre::Vector3 vmin(v[0]); |
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238 | Ogre::Vector3 vmax(v[0]); |
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239 | |
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240 | for(unsigned int j = 1; j < vCount; j++) |
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241 | { |
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242 | vmin.x = std::min(vmin.x, v[j].x); |
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243 | vmin.y = std::min(vmin.y, v[j].y); |
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244 | vmin.z = std::min(vmin.z, v[j].z); |
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245 | |
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246 | vmax.x = std::max(vmax.x, v[j].x); |
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247 | vmax.y = std::max(vmax.y, v[j].y); |
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248 | vmax.z = std::max(vmax.z, v[j].z); |
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249 | } |
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250 | |
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251 | mBounds.x = vmax.x - vmin.x; |
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252 | mBounds.y = vmax.y - vmin.y; |
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253 | mBounds.z = vmax.z - vmin.z; |
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254 | } |
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255 | |
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256 | return mBounds; |
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257 | } |
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258 | //------------------------------------------------------------------------------------------------ |
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259 | const Ogre::Vector3* VertexIndexToShape::getVertices() |
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260 | { |
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261 | return mVertexBuffer; |
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262 | } |
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263 | //------------------------------------------------------------------------------------------------ |
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264 | unsigned int VertexIndexToShape::getVertexCount() |
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265 | { |
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266 | return mVertexCount; |
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267 | } |
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268 | //------------------------------------------------------------------------------------------------ |
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269 | const unsigned int* VertexIndexToShape::getIndices() |
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270 | { |
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271 | return mIndexBuffer; |
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272 | } |
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273 | //------------------------------------------------------------------------------------------------ |
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274 | unsigned int VertexIndexToShape::getIndexCount() |
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275 | { |
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276 | return mIndexCount; |
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277 | } |
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278 | |
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279 | //------------------------------------------------------------------------------------------------ |
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280 | SphereCollisionShape* VertexIndexToShape::createSphere() |
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281 | { |
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282 | const Ogre::Real rad = getRadius(); |
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283 | assert((rad > 0.0) && |
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284 | ("Sphere radius must be greater than zero")); |
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285 | SphereCollisionShape* shape = new SphereCollisionShape(rad); |
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286 | |
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287 | return shape; |
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288 | } |
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289 | //------------------------------------------------------------------------------------------------ |
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290 | BoxCollisionShape* VertexIndexToShape::createBox() |
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291 | { |
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292 | const Ogre::Vector3 sz = getSize(); |
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293 | |
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294 | assert((sz.x > 0.0) && (sz.y > 0.0) && (sz.y > 0.0) && |
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295 | ("Size of box must be greater than zero on all axes")); |
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296 | |
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297 | BoxCollisionShape* shape = new BoxCollisionShape(sz); |
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298 | return shape; |
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299 | } |
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300 | //------------------------------------------------------------------------------------------------ |
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301 | CylinderCollisionShape* VertexIndexToShape::createCylinder() |
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302 | { |
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303 | const Ogre::Vector3 sz = getSize(); |
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304 | |
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305 | assert((sz.x > 0.0) && (sz.y > 0.0) && (sz.y > 0.0) && |
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306 | ("Size of Cylinder must be greater than zero on all axes")); |
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307 | |
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308 | CylinderCollisionShape* shape = new CylinderCollisionShape(sz, Vector3::UNIT_X); |
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309 | return shape; |
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310 | } |
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311 | //------------------------------------------------------------------------------------------------ |
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312 | ConvexHullCollisionShape* VertexIndexToShape::createConvex() |
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313 | { |
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314 | assert(mVertexCount && (mIndexCount >= 6) && |
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315 | ("Mesh must have some vertices and at least 6 indices (2 triangles)")); |
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316 | |
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317 | return new ConvexHullCollisionShape(&mVertexBuffer[0].x, mVertexCount, sizeof(Vector3)); |
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318 | } |
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319 | //------------------------------------------------------------------------------------------------ |
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320 | TriangleMeshCollisionShape* VertexIndexToShape::createTrimesh() |
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321 | { |
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322 | assert(mVertexCount && (mIndexCount >= 6) && |
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323 | ("Mesh must have some vertices and at least 6 indices (2 triangles)")); |
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324 | |
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325 | return new TriangleMeshCollisionShape(mVertexBuffer, mVertexCount,mIndexBuffer, mIndexCount); |
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326 | } |
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327 | //------------------------------------------------------------------------------------------------ |
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328 | VertexIndexToShape::~VertexIndexToShape() |
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329 | { |
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330 | delete[] mVertexBuffer; |
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331 | delete[] mIndexBuffer; |
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332 | |
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333 | if (mBoneIndex) |
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334 | { |
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335 | for(BoneIndex::iterator i = mBoneIndex->begin(); |
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336 | i != mBoneIndex->end(); |
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337 | ++i) |
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338 | { |
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339 | delete i->second; |
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340 | } |
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341 | delete mBoneIndex; |
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342 | } |
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343 | } |
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344 | //------------------------------------------------------------------------------------------------ |
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345 | VertexIndexToShape::VertexIndexToShape(const Matrix4 &transform) : |
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346 | mVertexBuffer (0), |
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347 | mIndexBuffer (0), |
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348 | mVertexCount (0), |
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349 | mIndexCount (0), |
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350 | mBounds (Vector3(-1,-1,-1)), |
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351 | mBoundRadius (-1), |
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352 | mBoneIndex (0), |
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353 | mTransform (transform) |
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354 | { |
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355 | } |
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356 | //------------------------------------------------------------------------------------------------ |
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357 | StaticMeshToShapeConverter::StaticMeshToShapeConverter() : |
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358 | VertexIndexToShape(), |
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359 | mEntity (0), |
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360 | mNode (0) |
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361 | { |
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362 | } |
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363 | //------------------------------------------------------------------------------------------------ |
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364 | StaticMeshToShapeConverter::~StaticMeshToShapeConverter() |
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365 | { |
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366 | } |
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367 | //------------------------------------------------------------------------------------------------ |
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368 | StaticMeshToShapeConverter::StaticMeshToShapeConverter(Entity *entity, const Matrix4 &transform) : |
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369 | VertexIndexToShape(transform), |
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370 | mEntity (0), |
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371 | mNode (0) |
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372 | { |
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373 | addEntity(entity, transform); |
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374 | } |
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375 | //------------------------------------------------------------------------------------------------ |
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376 | StaticMeshToShapeConverter::StaticMeshToShapeConverter(Renderable *rend, const Matrix4 &transform) : |
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377 | VertexIndexToShape(transform), |
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378 | mEntity (0), |
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379 | mNode (0) |
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380 | { |
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381 | RenderOperation op; |
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382 | rend->getRenderOperation(op); |
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383 | VertexIndexToShape::addStaticVertexData(op.vertexData); |
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384 | if(op.useIndexes) |
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385 | VertexIndexToShape::addIndexData(op.indexData); |
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386 | |
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387 | } |
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388 | //------------------------------------------------------------------------------------------------ |
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389 | void StaticMeshToShapeConverter::addEntity(Entity *entity,const Matrix4 &transform) |
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390 | { |
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391 | // Each entity added need to reset size and radius |
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392 | // next time getRadius and getSize are asked, they're computed. |
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393 | mBounds = Ogre::Vector3(-1,-1,-1); |
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394 | mBoundRadius = -1; |
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395 | |
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396 | mEntity = entity; |
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397 | mNode = (SceneNode*)(mEntity->getParentNode()); |
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398 | mTransform = transform; |
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399 | |
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400 | if (mEntity->getMesh()->sharedVertexData) |
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401 | { |
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402 | VertexIndexToShape::addStaticVertexData (mEntity->getMesh()->sharedVertexData); |
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403 | } |
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404 | |
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405 | for (unsigned int i = 0;i < mEntity->getNumSubEntities();++i) |
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406 | { |
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407 | SubMesh *sub_mesh = mEntity->getSubEntity(i)->getSubMesh(); |
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408 | |
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409 | if (!sub_mesh->useSharedVertices) |
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410 | { |
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411 | VertexIndexToShape::addIndexData(sub_mesh->indexData, mVertexCount); |
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412 | VertexIndexToShape::addStaticVertexData (sub_mesh->vertexData); |
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413 | } |
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414 | else |
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415 | { |
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416 | VertexIndexToShape::addIndexData (sub_mesh->indexData); |
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417 | } |
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418 | |
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419 | } |
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420 | } |
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421 | //------------------------------------------------------------------------------------------------ |
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422 | void StaticMeshToShapeConverter::addMesh(const MeshPtr &mesh, const Matrix4 &transform) |
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423 | { |
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424 | // Each entity added need to reset size and radius |
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425 | // next time getRadius and getSize are asked, they're computed. |
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426 | mBounds = Ogre::Vector3(-1,-1,-1); |
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427 | mBoundRadius = -1; |
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428 | |
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429 | //_entity = entity; |
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430 | //_node = (SceneNode*)(_entity->getParentNode()); |
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431 | mTransform = transform; |
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432 | |
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433 | if (mesh->hasSkeleton ()) |
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434 | Ogre::LogManager::getSingleton().logMessage("MeshToShapeConverter::addMesh : Mesh " + mesh->getName () + " as skeleton but added to trimesh non animated"); |
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435 | |
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436 | if (mesh->sharedVertexData) |
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437 | { |
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438 | VertexIndexToShape::addStaticVertexData (mesh->sharedVertexData); |
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439 | } |
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440 | |
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441 | for(unsigned int i = 0;i < mesh->getNumSubMeshes();++i) |
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442 | { |
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443 | SubMesh *sub_mesh = mesh->getSubMesh(i); |
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444 | |
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445 | if (!sub_mesh->useSharedVertices) |
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446 | { |
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447 | VertexIndexToShape::addIndexData(sub_mesh->indexData, mVertexCount); |
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448 | VertexIndexToShape::addStaticVertexData (sub_mesh->vertexData); |
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449 | } |
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450 | else |
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451 | { |
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452 | VertexIndexToShape::addIndexData (sub_mesh->indexData); |
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453 | } |
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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 | AnimatedMeshToShapeConverter::AnimatedMeshToShapeConverter(Entity *entity,const Matrix4 &transform) : |
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459 | VertexIndexToShape(transform), |
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460 | mEntity (0), |
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461 | mNode (0), |
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462 | mTransformedVerticesTemp(0), |
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463 | mTransformedVerticesTempSize(0) |
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464 | { |
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465 | addEntity(entity, transform); |
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466 | } |
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467 | //------------------------------------------------------------------------------------------------ |
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468 | AnimatedMeshToShapeConverter::AnimatedMeshToShapeConverter() : |
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469 | VertexIndexToShape(), |
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470 | mEntity (0), |
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471 | mNode (0), |
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472 | mTransformedVerticesTemp(0), |
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473 | mTransformedVerticesTempSize(0) |
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474 | { |
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475 | } |
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476 | //------------------------------------------------------------------------------------------------ |
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477 | AnimatedMeshToShapeConverter::~AnimatedMeshToShapeConverter() |
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478 | { |
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479 | delete[] mTransformedVerticesTemp; |
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480 | } |
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481 | //------------------------------------------------------------------------------------------------ |
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482 | void AnimatedMeshToShapeConverter::addEntity(Entity *entity,const Matrix4 &transform) |
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483 | { |
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484 | // Each entity added need to reset size and radius |
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485 | // next time getRadius and getSize are asked, they're computed. |
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486 | mBounds = Ogre::Vector3(-1,-1,-1); |
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487 | mBoundRadius = -1; |
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488 | |
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489 | mEntity = entity; |
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490 | mNode = (SceneNode*)(mEntity->getParentNode()); |
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491 | mTransform = transform; |
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492 | |
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493 | assert (entity->getMesh()->hasSkeleton ()); |
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494 | |
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495 | mEntity->addSoftwareAnimationRequest(false); |
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496 | mEntity->_updateAnimation(); |
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497 | |
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498 | if (mEntity->getMesh()->sharedVertexData) |
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499 | { |
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500 | VertexIndexToShape::addAnimatedVertexData (mEntity->getMesh()->sharedVertexData, |
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501 | mEntity->_getSkelAnimVertexData(), |
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502 | &mEntity->getMesh()->sharedBlendIndexToBoneIndexMap); |
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503 | } |
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504 | |
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505 | for (unsigned int i = 0;i < mEntity->getNumSubEntities();++i) |
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506 | { |
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507 | SubMesh *sub_mesh = mEntity->getSubEntity(i)->getSubMesh(); |
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508 | |
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509 | if (!sub_mesh->useSharedVertices) |
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510 | { |
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511 | VertexIndexToShape::addIndexData(sub_mesh->indexData, mVertexCount); |
---|
512 | |
---|
513 | VertexIndexToShape::addAnimatedVertexData (sub_mesh->vertexData, |
---|
514 | mEntity->getSubEntity(i)->_getSkelAnimVertexData(), |
---|
515 | &sub_mesh->blendIndexToBoneIndexMap); |
---|
516 | } |
---|
517 | else |
---|
518 | { |
---|
519 | VertexIndexToShape::addIndexData (sub_mesh->indexData); |
---|
520 | } |
---|
521 | |
---|
522 | } |
---|
523 | |
---|
524 | mEntity->removeSoftwareAnimationRequest(false); |
---|
525 | } |
---|
526 | //------------------------------------------------------------------------------------------------ |
---|
527 | void AnimatedMeshToShapeConverter::addMesh(const MeshPtr &mesh, const Matrix4 &transform) |
---|
528 | { |
---|
529 | // Each entity added need to reset size and radius |
---|
530 | // next time getRadius and getSize are asked, they're computed. |
---|
531 | mBounds = Ogre::Vector3(-1,-1,-1); |
---|
532 | mBoundRadius = -1; |
---|
533 | |
---|
534 | //_entity = entity; |
---|
535 | //_node = (SceneNode*)(_entity->getParentNode()); |
---|
536 | mTransform = transform; |
---|
537 | |
---|
538 | assert (mesh->hasSkeleton ()); |
---|
539 | |
---|
540 | if (mesh->sharedVertexData) |
---|
541 | { |
---|
542 | VertexIndexToShape::addAnimatedVertexData (mesh->sharedVertexData, |
---|
543 | 0, |
---|
544 | &mesh->sharedBlendIndexToBoneIndexMap); |
---|
545 | } |
---|
546 | |
---|
547 | for(unsigned int i = 0;i < mesh->getNumSubMeshes();++i) |
---|
548 | { |
---|
549 | SubMesh *sub_mesh = mesh->getSubMesh(i); |
---|
550 | |
---|
551 | if (!sub_mesh->useSharedVertices) |
---|
552 | { |
---|
553 | VertexIndexToShape::addIndexData(sub_mesh->indexData, mVertexCount); |
---|
554 | |
---|
555 | VertexIndexToShape::addAnimatedVertexData (sub_mesh->vertexData, |
---|
556 | 0, |
---|
557 | &sub_mesh->blendIndexToBoneIndexMap); |
---|
558 | } |
---|
559 | else |
---|
560 | { |
---|
561 | VertexIndexToShape::addIndexData (sub_mesh->indexData); |
---|
562 | } |
---|
563 | |
---|
564 | } |
---|
565 | } |
---|
566 | //------------------------------------------------------------------------------------------------ |
---|
567 | bool AnimatedMeshToShapeConverter::getBoneVertices(unsigned char bone, |
---|
568 | unsigned int &vertex_count, |
---|
569 | Ogre::Vector3* &vertices, |
---|
570 | const Vector3 &bonePosition) |
---|
571 | { |
---|
572 | BoneIndex::iterator i = mBoneIndex->find(bone); |
---|
573 | |
---|
574 | if (i == mBoneIndex->end()) |
---|
575 | return false; |
---|
576 | |
---|
577 | if (i->second->empty()) |
---|
578 | return false; |
---|
579 | |
---|
580 | vertex_count = (unsigned int) i->second->size() + 1; |
---|
581 | if (vertex_count > mTransformedVerticesTempSize) |
---|
582 | { |
---|
583 | if (mTransformedVerticesTemp) |
---|
584 | delete[] mTransformedVerticesTemp; |
---|
585 | |
---|
586 | mTransformedVerticesTemp = new Ogre::Vector3[vertex_count]; |
---|
587 | |
---|
588 | } |
---|
589 | |
---|
590 | vertices = mTransformedVerticesTemp; |
---|
591 | vertices[0] = bonePosition; |
---|
592 | //mEntity->_getParentNodeFullTransform() * |
---|
593 | // mEntity->getSkeleton()->getBone(bone)->_getDerivedPosition(); |
---|
594 | |
---|
595 | //mEntity->getSkeleton()->getBone(bone)->_getDerivedOrientation() |
---|
596 | unsigned int currBoneVertex = 1; |
---|
597 | Vector3Array::iterator j = i->second->begin(); |
---|
598 | while(j != i->second->end()) |
---|
599 | { |
---|
600 | vertices[currBoneVertex] = (*j); |
---|
601 | ++j; |
---|
602 | ++currBoneVertex; |
---|
603 | } |
---|
604 | return true; |
---|
605 | } |
---|
606 | //------------------------------------------------------------------------------------------------ |
---|
607 | BoxCollisionShape* AnimatedMeshToShapeConverter::createAlignedBox(unsigned char bone, |
---|
608 | const Vector3 &bonePosition, |
---|
609 | const Quaternion &boneOrientation) |
---|
610 | { |
---|
611 | unsigned int vertex_count; |
---|
612 | Vector3* vertices; |
---|
613 | |
---|
614 | if (!getBoneVertices(bone, vertex_count, vertices, bonePosition)) |
---|
615 | return 0; |
---|
616 | |
---|
617 | Vector3 min_vec(vertices[0]); |
---|
618 | Vector3 max_vec(vertices[0]); |
---|
619 | |
---|
620 | for(unsigned int j = 1; j < vertex_count ;j++) |
---|
621 | { |
---|
622 | min_vec.x = std::min(min_vec.x,vertices[j].x); |
---|
623 | min_vec.y = std::min(min_vec.y,vertices[j].y); |
---|
624 | min_vec.z = std::min(min_vec.z,vertices[j].z); |
---|
625 | |
---|
626 | max_vec.x = std::max(max_vec.x,vertices[j].x); |
---|
627 | max_vec.y = std::max(max_vec.y,vertices[j].y); |
---|
628 | max_vec.z = std::max(max_vec.z,vertices[j].z); |
---|
629 | } |
---|
630 | const Ogre::Vector3 maxMinusMin(max_vec - min_vec); |
---|
631 | BoxCollisionShape* box = new BoxCollisionShape(maxMinusMin); |
---|
632 | |
---|
633 | const Ogre::Vector3 pos |
---|
634 | (min_vec.x + (maxMinusMin.x * 0.5), |
---|
635 | min_vec.y + (maxMinusMin.y * 0.5), |
---|
636 | min_vec.z + (maxMinusMin.z * 0.5)); |
---|
637 | |
---|
638 | //box->setPosition(pos); |
---|
639 | |
---|
640 | return box; |
---|
641 | } |
---|
642 | //------------------------------------------------------------------------------------------------ |
---|
643 | bool AnimatedMeshToShapeConverter::getOrientedBox(unsigned char bone, |
---|
644 | const Vector3 &bonePosition, |
---|
645 | const Quaternion &boneOrientation, |
---|
646 | Vector3 &box_afExtent, |
---|
647 | Vector3 *box_akAxis, |
---|
648 | Vector3 &box_kCenter) |
---|
649 | { |
---|
650 | unsigned int vertex_count; |
---|
651 | Vector3* vertices; |
---|
652 | |
---|
653 | if (!getBoneVertices(bone, vertex_count, vertices, bonePosition)) |
---|
654 | return false; |
---|
655 | |
---|
656 | box_kCenter = Vector3::ZERO; |
---|
657 | |
---|
658 | { |
---|
659 | for(unsigned int c = 0 ;c < vertex_count;c++) |
---|
660 | { |
---|
661 | box_kCenter += vertices[c]; |
---|
662 | } |
---|
663 | const Ogre::Real invVertexCount = 1.0 / vertex_count; |
---|
664 | box_kCenter *= invVertexCount; |
---|
665 | } |
---|
666 | Quaternion orient = boneOrientation; |
---|
667 | orient.ToAxes(box_akAxis); |
---|
668 | |
---|
669 | |
---|
670 | // Let C be the box center and let U0, U1, and U2 be the box axes. Each |
---|
671 | // input point is of the form X = C + y0*U0 + y1*U1 + y2*U2. The |
---|
672 | // following code computes min(y0), max(y0), min(y1), max(y1), min(y2), |
---|
673 | // and max(y2). The box center is then adjusted to be |
---|
674 | // C' = C + 0.5*(min(y0)+max(y0))*U0 + 0.5*(min(y1)+max(y1))*U1 + |
---|
675 | // 0.5*(min(y2)+max(y2))*U2 |
---|
676 | |
---|
677 | Ogre::Vector3 kDiff (vertices[1] - box_kCenter); |
---|
678 | Ogre::Real fY0Min = kDiff.dotProduct(box_akAxis[0]), fY0Max = fY0Min; |
---|
679 | Ogre::Real fY1Min = kDiff.dotProduct(box_akAxis[1]), fY1Max = fY1Min; |
---|
680 | Ogre::Real fY2Min = kDiff.dotProduct(box_akAxis[2]), fY2Max = fY2Min; |
---|
681 | |
---|
682 | for (unsigned int i = 2; i < vertex_count; i++) |
---|
683 | { |
---|
684 | kDiff = vertices[i] - box_kCenter; |
---|
685 | |
---|
686 | const Ogre::Real fY0 = kDiff.dotProduct(box_akAxis[0]); |
---|
687 | if ( fY0 < fY0Min ) |
---|
688 | fY0Min = fY0; |
---|
689 | else if ( fY0 > fY0Max ) |
---|
690 | fY0Max = fY0; |
---|
691 | |
---|
692 | const Ogre::Real fY1 = kDiff.dotProduct(box_akAxis[1]); |
---|
693 | if ( fY1 < fY1Min ) |
---|
694 | fY1Min = fY1; |
---|
695 | else if ( fY1 > fY1Max ) |
---|
696 | fY1Max = fY1; |
---|
697 | |
---|
698 | const Ogre::Real fY2 = kDiff.dotProduct(box_akAxis[2]); |
---|
699 | if ( fY2 < fY2Min ) |
---|
700 | fY2Min = fY2; |
---|
701 | else if ( fY2 > fY2Max ) |
---|
702 | fY2Max = fY2; |
---|
703 | } |
---|
704 | |
---|
705 | box_afExtent.x = ((Real)0.5)*(fY0Max - fY0Min); |
---|
706 | box_afExtent.y = ((Real)0.5)*(fY1Max - fY1Min); |
---|
707 | box_afExtent.z = ((Real)0.5)*(fY2Max - fY2Min); |
---|
708 | |
---|
709 | box_kCenter += (0.5*(fY0Max+fY0Min))*box_akAxis[0] + |
---|
710 | (0.5*(fY1Max+fY1Min))*box_akAxis[1] + |
---|
711 | (0.5*(fY2Max+fY2Min))*box_akAxis[2]; |
---|
712 | |
---|
713 | box_afExtent *= 2.0; |
---|
714 | |
---|
715 | return true; |
---|
716 | } |
---|
717 | //------------------------------------------------------------------------------------------------ |
---|
718 | BoxCollisionShape* AnimatedMeshToShapeConverter::createOrientedBox(unsigned char bone, |
---|
719 | const Vector3 &bonePosition, |
---|
720 | const Quaternion &boneOrientation) |
---|
721 | { |
---|
722 | Ogre::Vector3 box_akAxis[3]; |
---|
723 | Ogre::Vector3 box_afExtent; |
---|
724 | Ogre::Vector3 box_afCenter; |
---|
725 | |
---|
726 | if (!getOrientedBox(bone, bonePosition, boneOrientation, |
---|
727 | box_afExtent, |
---|
728 | box_akAxis, |
---|
729 | box_afCenter)) |
---|
730 | return 0; |
---|
731 | |
---|
732 | BoxCollisionShape *geom = new BoxCollisionShape(box_afExtent); |
---|
733 | //geom->setOrientation(Quaternion(box_akAxis[0],box_akAxis[1],box_akAxis[2])); |
---|
734 | //geom->setPosition(box_afCenter); |
---|
735 | return geom; |
---|
736 | } |
---|
737 | //------------------------------------------------------------------------------------------------ |
---|
738 | CapsuleCollisionShape* AnimatedMeshToShapeConverter::createOrientedCapsuleCollisionShape(unsigned char bone, |
---|
739 | const Vector3 &bonePosition, |
---|
740 | const Quaternion &boneOrientation) |
---|
741 | { |
---|
742 | Ogre::Vector3 box_akAxis[3]; |
---|
743 | Ogre::Vector3 box_afExtent; |
---|
744 | Ogre::Vector3 box_afCenter; |
---|
745 | |
---|
746 | if (!getOrientedBox(bone, bonePosition, boneOrientation, |
---|
747 | box_afExtent, |
---|
748 | box_akAxis, |
---|
749 | box_afCenter)) |
---|
750 | return 0; |
---|
751 | |
---|
752 | // find axes with longest length |
---|
753 | |
---|
754 | Vector3 cap_dir; //std::max(box_afExtent.x,std::max(box_afExtent.y,box_afExtent.z)); |
---|
755 | Real cap_dirLength; //std::max(box_afExtent.x,std::max(box_afExtent.y,box_afExtent.z)); |
---|
756 | Real cap_radius; // max axe length |
---|
757 | if (box_afExtent.x - box_afExtent.y > 0 && box_afExtent.x - box_afExtent.z > 0) |
---|
758 | { |
---|
759 | cap_dir = Vector3::UNIT_X; |
---|
760 | cap_dirLength = box_afExtent.x; |
---|
761 | cap_radius = std::max (box_afExtent.y, box_afExtent.z); |
---|
762 | } |
---|
763 | else if (box_afExtent.y - box_afExtent.x > 0 && box_afExtent.y - box_afExtent.z > 0) |
---|
764 | { |
---|
765 | cap_dir = Vector3::UNIT_Y; |
---|
766 | cap_dirLength = box_afExtent.y; |
---|
767 | cap_radius = std::max (box_afExtent.x, box_afExtent.z); |
---|
768 | } |
---|
769 | else if (box_afExtent.z - box_afExtent.y > 0 && box_afExtent.z - box_afExtent.y > 0) |
---|
770 | { |
---|
771 | cap_dir = Vector3::UNIT_Z; |
---|
772 | cap_dirLength = box_afExtent.z; |
---|
773 | cap_radius = std::max (box_afExtent.x, box_afExtent.z); |
---|
774 | } |
---|
775 | |
---|
776 | CapsuleCollisionShape* geom = new CapsuleCollisionShape(cap_radius, cap_dirLength, cap_dir); |
---|
777 | |
---|
778 | //geom->setOrientation(orient); |
---|
779 | //geom->setPosition(cap_orig + (boneOrientation * (cap_dirLength * 0.5))); |
---|
780 | |
---|
781 | return geom; |
---|
782 | } |
---|