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<hr><h1>skeleton_shape.cpp</h1><a href="skeleton__shape_8cpp.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NEL.</font>
00010 <font class="comment"> * NEVRAX NEL is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NEL is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NEL; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#include "<a class="code" href="std3d_8h.html">std3d.h</a>"</font>
00027 
00028 <font class="preprocessor">#include "<a class="code" href="skeleton__shape_8h.html">3d/skeleton_shape.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="skeleton__model_8h.html">3d/skeleton_model.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="bsphere_8h.html">nel/misc/bsphere.h</a>"</font>
00032 
00033 <font class="keyword">using</font> <font class="keyword">namespace </font>std;
00034 <font class="keyword">using</font> <font class="keyword">namespace </font>NLMISC;
00035 
00036 <font class="keyword">namespace </font>NL3D
00037 {
00038 
00039 
00040 <font class="comment">// ***************************************************************************</font>
<a name="l00041"></a><a class="code" href="structNL3D_1_1CSkeletonShape_1_1CLod.html#a0">00041</a> <font class="keywordtype">void</font>    CSkeletonShape::CLod::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00042 {
00043         (void)f.serialVersion(0);
00044 
00045         f.serial(Distance);
00046         f.serialCont(ActiveBones);
00047 }
00048 
00049 
00050 <font class="comment">// ***************************************************************************</font>
<a name="l00051"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#a0">00051</a> CSkeletonShape::CSkeletonShape()
00052 {
00053         <font class="comment">// By default for now....</font>
00054         <font class="comment">// Temp. Have a huge BBox, so clip badly. </font>
00055         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o2">_BBox</a>.<a class="code" href="classNLMISC_1_1CAABBox.html#z263_0">setCenter</a>(CVector(0,0,1.5));
00056         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o2">_BBox</a>.<a class="code" href="classNLMISC_1_1CAABBox.html#z263_2">setSize</a>(CVector(3,3,3));
00057 }
00058 
00059 
00060 <font class="comment">// ***************************************************************************</font>
<a name="l00061"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#a3">00061</a> sint32                  CSkeletonShape::getBoneIdByName(<font class="keyword">const</font> std::string &amp;name)<font class="keyword"> const</font>
00062 <font class="keyword"></font>{
00063         std::map&lt;std::string, uint32&gt;::const_iterator   it= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o1">_BoneMap</a>.find(name);
00064         <font class="keywordflow">if</font>(it==<a class="code" href="classNL3D_1_1CSkeletonShape.html#o1">_BoneMap</a>.end())
00065                 <font class="keywordflow">return</font> -1;
00066         <font class="keywordflow">else</font>
00067                 <font class="keywordflow">return</font> it-&gt;second;
00068 }
00069 
00070 
00071 <font class="comment">// ***************************************************************************</font>
<a name="l00072"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#a1">00072</a> <font class="keywordtype">void</font>                    CSkeletonShape::build(<font class="keyword">const</font> std::vector&lt;CBoneBase&gt; &amp;bones)
00073 {
00074         uint    i;
00075 
00076         <font class="comment">// copy bones.</font>
00077         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>= bones;
00078 
00079         <font class="comment">// for all bones</font>
00080         <font class="keywordflow">for</font>(i=0;i&lt;<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size();i++)
00081         {
00082                 <font class="comment">// build the map.</font>
00083                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o1">_BoneMap</a>[<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].Name]= i;
00084                 <font class="comment">// validate distances.</font>
00085                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance= max(0.f, <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance);
00086 
00087                 <font class="comment">// get fahter dist.</font>
00088                 sint32  fatherId= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].FatherId;
00089                 <font class="comment">// if father exist and is not "always enabled"</font>
00090                 <font class="keywordflow">if</font>(fatherId&gt;=0 &amp;&amp; <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[fatherId].LodDisableDistance!=0)
00091                 {
00092                         <font class="keywordtype">float</font>   fatherDist= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[fatherId].LodDisableDistance;
00093                         <font class="comment">// I must disable me at least before my father (never after).</font>
00094                         <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance==0)
00095                                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance= fatherDist;
00096                         <font class="keywordflow">else</font>
00097                                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance= <a class="code" href="bit__set_8cpp.html#a0">min</a>(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance, fatherDist);
00098                 }
00099         }
00100 
00101         <font class="comment">// build Lod Information.</font>
00102         <font class="comment">//==============</font>
00103         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>.clear();
00104 
00105         <font class="comment">// build all distances used.</font>
00106         set&lt;float&gt;      distSet;
00107         <font class="keywordflow">for</font>(i=0;i&lt;<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size();i++)
00108         {
00109                 <font class="keywordtype">float</font>   dist= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance;
00110                 <font class="comment">// if lod enabled for this bone, add a new distance, or do nothing</font>
00111                 <font class="keywordflow">if</font>(dist&gt;0)
00112                         distSet.insert(dist);
00113         }
00114 
00115         <font class="comment">// create a lod for each distance used + 1 (the "dist==0" distance).</font>
00116         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>.resize(distSet.size() + 1);
00117         <font class="comment">// create the default lod: all bones activated.</font>
00118         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>[0].Distance=0;
00119         <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>[0].ActiveBones.resize(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size(), 0xFF);
00120 
00121         <font class="comment">// For each lods not 0th.</font>
00122         set&lt;float&gt;::iterator    it= distSet.begin();
00123         <font class="keywordflow">for</font>(uint j=1; j&lt;<a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>.size(); j++, it++)
00124         {
00125                 <font class="keywordtype">float</font>   lodDist= *it;
00126                 <font class="comment">// set the distance of activation</font>
00127                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>[j].Distance= lodDist;
00128                 <font class="comment">// resize and default to all enabled.</font>
00129                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>[j].ActiveBones.resize(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size(), 0xFF);
00130 
00131                 <font class="comment">// Search what lod are to be disabled at this distance.</font>
00132                 <font class="keywordflow">for</font>(i=0;i&lt;<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size();i++)
00133                 {
00134                         <font class="keywordtype">float</font>   dist= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i].LodDisableDistance;
00135                         <font class="comment">// if the dist of the lod is greater (or equal) to the disableDist of the bone, </font>
00136                         <font class="comment">// and if the bone is not "always enabled", disable the bone</font>
00137                         <font class="keywordflow">if</font>(lodDist&gt;=dist &amp;&amp; dist!=0 )
00138                                 <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>[j].ActiveBones[i]= 0;
00139                 }
00140 
00141         }
00142 
00143 }
00144 
00145 
00146 <font class="comment">// ***************************************************************************</font>
<a name="l00147"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#a2">00147</a> <font class="keywordtype">void</font>                    CSkeletonShape::retrieve(std::vector&lt;CBoneBase&gt; &amp;bones)<font class="keyword"> const</font>
00148 <font class="keyword"></font>{
00149         bones= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>;
00150 }
00151 
00152 
00153 <font class="comment">// ***************************************************************************</font>
<a name="l00154"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#z808_0">00154</a> CTransformShape         *CSkeletonShape::createInstance(CScene &amp;scene)
00155 {
00156         <font class="comment">// Create a CSkeletonModel, an instance of a mesh.</font>
00157         <font class="comment">//===============================================</font>
00158         CSkeletonModel          *sm= (CSkeletonModel*)scene.createModel(NL3D::SkeletonModelId);
00159         sm-&gt;Shape= <font class="keyword">this</font>;
00160 
00161         <font class="comment">// setup bones.</font>
00162         <font class="comment">//=================</font>
00163         sm-&gt;Bones.reserve(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size());
00164         <font class="keywordflow">for</font>(sint i=0;i&lt;(sint)<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>.size();i++)
00165         {
00166                 <font class="comment">// Append a new bone.</font>
00167                 sm-&gt;Bones.push_back( CBone(&amp;<a class="code" href="classNL3D_1_1CSkeletonShape.html#o0">_Bones</a>[i]) );
00168 
00169                 <font class="comment">// Must set the Animatable father of the bone (the skeleton model!).</font>
00170                 sm-&gt;Bones[i].setFather(sm, CSkeletonModel::OwnerBit);
00171         }
00172 
00173         <font class="comment">// Must create and init skeleton bone usage to 0.</font>
00174         sm-&gt;initBoneUsages();
00175 
00176         <font class="comment">// For skinning: setup skeleton in Skin LoadBalancing group</font>
00177         sm-&gt;setLoadBalancingGroup(<font class="stringliteral">"Skin"</font>);
00178 
00179         <font class="keywordflow">return</font> sm;
00180 }
00181 
00182 <font class="comment">// ***************************************************************************</font>
<a name="l00183"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#z808_5">00183</a> <font class="keywordtype">void</font>                    CSkeletonShape::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &amp;f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00184 {
00185         <font class="comment">/*</font>
00186 <font class="comment">        Version 1:</font>
00187 <font class="comment">                - _Lods.</font>
00188 <font class="comment">        */</font>
00189         sint    ver= f.serialVersion(1);
00190 
00191         f.serialCont(_Bones);
00192         f.serialCont(_BoneMap);
00193 
00194         <font class="keywordflow">if</font>(ver&gt;=1)
00195                 f.serialCont(_Lods);
00196         <font class="keywordflow">else</font>
00197         {
00198                 <font class="comment">// create a skeleton shape with bones activated all the time</font>
00199                 _Lods.resize(1);
00200                 <font class="comment">// create the default lod: all bones activated.</font>
00201                 _Lods[0].Distance=0;
00202                 _Lods[0].ActiveBones.resize(_Bones.size(), 0xFF);
00203         }
00204 }
00205 
00206 <font class="comment">// ***************************************************************************</font>
00207 
<a name="l00208"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#z808_4">00208</a> <font class="keywordtype">float</font> CSkeletonShape::getNumTriangles (<font class="keywordtype">float</font> distance)
00209 {
00210         <font class="comment">// No polygons</font>
00211         <font class="keywordflow">return</font> 0;
00212 }
00213 
00214 
00215 <font class="comment">// ***************************************************************************</font>
<a name="l00216"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#z808_1">00216</a> <font class="keywordtype">bool</font>    CSkeletonShape::clip(<font class="keyword">const</font> std::vector&lt;CPlane&gt;  &amp;pyramid, <font class="keyword">const</font> CMatrix &amp;worldMatrix)
00217 {
00218         <font class="comment">// Speed Clip: clip just the sphere.</font>
00219         CBSphere        localSphere(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o2">_BBox</a>.<a class="code" href="classNLMISC_1_1CAABBox.html#z264_4">getCenter</a>(), <a class="code" href="classNL3D_1_1CSkeletonShape.html#o2">_BBox</a>.<a class="code" href="classNLMISC_1_1CAABBox.html#z264_8">getRadius</a>());
00220         CBSphere        worldSphere;
00221 
00222         <font class="comment">// transform the sphere in WorldMatrix (with nearly good scale info).</font>
00223         localSphere.applyTransform(worldMatrix, worldSphere);
00224 
00225         <font class="comment">// if out of only plane, entirely out.</font>
00226         <font class="keywordflow">for</font>(sint i=0;i&lt;(sint)pyramid.size();i++)
00227         {
00228                 <font class="comment">// We are sure that pyramid has normalized plane normals.</font>
00229                 <font class="comment">// if SpherMax OUT return false.</font>
00230                 <font class="keywordtype">float</font>   d= pyramid[i]*worldSphere.Center;
00231                 <font class="keywordflow">if</font>(d&gt;worldSphere.Radius)
00232                         <font class="keywordflow">return</font> <font class="keyword">false</font>;
00233         }
00234 
00235         <font class="keywordflow">return</font> <font class="keyword">true</font>;
00236 }
00237 
00238 
00239 <font class="comment">// ***************************************************************************</font>
<a name="l00240"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#z808_3">00240</a> <font class="keywordtype">void</font>            CSkeletonShape::getAABBox(<a class="code" href="classNLMISC_1_1CAABBox.html">NLMISC::CAABBox</a> &amp;bbox)<font class="keyword"> const</font>
00241 <font class="keyword"></font>{
00242         bbox= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o2">_BBox</a>;
00243 }
00244 
00245 
00246 <font class="comment">// ***************************************************************************</font>
<a name="l00247"></a><a class="code" href="classNL3D_1_1CSkeletonShape.html#a4">00247</a> uint            CSkeletonShape::getLodForDistance(<font class="keywordtype">float</font> dist)<font class="keyword"> const</font>
00248 <font class="keyword"></font>{
00249         uint    start=0;
00250         uint    end= <a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>.size();
00251         <font class="comment">// find lower_bound by dichotomy</font>
00252         <font class="keywordflow">while</font>(end-1&gt;start)
00253         {
00254                 uint    pivot= (end+start)/2;
00255                 <font class="comment">// return the lower_bound, ie return first start with _Lods[pivot].Distance&lt;=dist</font>
00256                 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1CSkeletonShape.html#o3">_Lods</a>[pivot].Distance &lt;= dist)
00257                         start= pivot;
00258                 <font class="keywordflow">else</font>
00259                         end= pivot;
00260         }
00261 
00262         <font class="keywordflow">return</font> start;
00263 }
00264 
00265 
00266 } <font class="comment">// NL3D</font>
</pre></div>

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