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<hr><h1>particle_system_shape.cpp</h1><a href="particle__system__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="particle__system_8h.html">3d/particle_system.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="particle__system__shape_8h.html">3d/particle_system_shape.h</a>"</font>
00030 <font class="preprocessor">#include "<a class="code" href="particle__system__model_8h.html">3d/particle_system_model.h</a>"</font>
00031 <font class="preprocessor">#include "<a class="code" href="scene_8h.html">3d/scene.h</a>"</font>
00032 <font class="preprocessor">#include "<a class="code" href="driver_8h.html">3d/driver.h</a>"</font>
00033 <font class="preprocessor">#include "<a class="code" href="file_8h.html">nel/misc/file.h</a>"</font>
00034 <font class="preprocessor">#include "<a class="code" href="mem__stream_8h.html">nel/misc/mem_stream.h</a>"</font>
00035
00036
00037
00038 <font class="keyword">namespace </font>NL3D {
00039
00040 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a>;
00041 <font class="keyword">using</font> <a class="code" href="classNLMISC_1_1CIFile.html">NLMISC::CIFile</a>;
00042
00043
00044
00045
00046 <font class="comment">// private usage : macro to check the memory integrity</font>
00047 <font class="preprocessor">#if defined(NL_DEBUG) && defined(NL_OS_WINDOWS)</font>
00048 <font class="preprocessor"></font><font class="preprocessor"> #include <crtdbg.h></font>
00049 <font class="comment">//#define PARTICLES_CHECK_MEM nlassert(_CrtCheckMemory());</font>
00050 <font class="preprocessor"> #define PARTICLES_CHECK_MEM </font>
00051 <font class="preprocessor"></font><font class="preprocessor">#else</font>
<a name="l00052"></a><a class="code" href="particle__system__shape_8cpp.html#a0">00052</a> <font class="preprocessor"></font><font class="preprocessor"> #define PARTICLES_CHECK_MEM</font>
00053 <font class="preprocessor"></font><font class="preprocessor">#endif</font>
00054 <font class="preprocessor"></font>
<a name="l00056"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#a0">00056</a> CParticleSystemShape::CParticleSystemShape() : _MaxViewDist(100.f),
00057 _DestroyWhenOutOfFrustum(false),
00058 _DestroyModelWhenOutOfRange(false),
00059 _UsePrecomputedBBox(false),
00060 _Sharing(false)
00061 {
00062 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a13">uint</a> k = 0; k < 4; ++k)
00063 {
00064 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n3">_UserParamDefaultTrack</a>[k].setValue(0);
00065 }
00066 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n4">_DefaultPos</a>.setValue(CVector::Null);
00067 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n5">_DefaultScale</a>.setValue( CVector(1, 1, 1) );
00068 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n6">_DefaultRotQuat</a>.setValue(CQuat());
00069 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n7">_DefaultTriggerTrack</a>.setValue(<font class="keyword">true</font>); <font class="comment">// by default, system start as soon as they are instanciated</font>
00070
00071 }
00072
<a name="l00074"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#a4">00074</a> <font class="keywordtype">void</font> CParticleSystemShape::serial(<a class="code" href="classNLMISC_1_1IStream.html">NLMISC::IStream</a> &f) <font class="keywordflow">throw</font>(NLMISC::EStream)
00075 {
00076 <a class="code" href="types__nl_8h.html#a12">sint</a> ver = f.serialVersion(6);
00078 NLMISC::CVector8 &buf = _ParticleSystemProto.bufferAsVector();
00079 f.serialCont(buf);
00080 <font class="keywordflow">if</font> (ver > 1)
00081 {
00082 <font class="comment">// serial default tracks</font>
00083 <font class="keywordflow">for</font> (<a class="code" href="types__nl_8h.html#a13">uint</a> k = 0; k < 4; ++k)
00084 {
00085 f.serial(_UserParamDefaultTrack[k]);
00086 }
00087 }
00088 <font class="keywordflow">if</font> ( ver > 2)
00089 {
00090 f.serial (_DefaultPos);
00091 f.serial (_DefaultScale);
00092 f.serial (_DefaultRotQuat);
00093 }
00094 <font class="keywordflow">if</font> ( ver > 3)
00095 {
00096 f.serial(_MaxViewDist);
00097 f.serial(_DestroyWhenOutOfFrustum);
00098 f.serial(_DestroyModelWhenOutOfRange);
00099 }
00100 <font class="keywordflow">if</font> ( ver > 4)
00101 {
00102 f.serial(_UsePrecomputedBBox);
00103 <font class="keywordflow">if</font> (_UsePrecomputedBBox)
00104 {
00105 f.serial(_PrecomputedBBox);
00106 }
00107 }
00108 <font class="keywordflow">if</font> ( ver > 5)
00109 {
00110 f.serial(_Sharing);
00111 }
00112 }
00113
<a name="l00115"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#a1">00115</a> <font class="keywordtype">void</font> CParticleSystemShape::buildFromPS(<font class="keyword">const</font> CParticleSystem &ps)
00116 {
00117 <font class="comment">// must be sure that we are writting in the stream</font>
00118 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>())
00119 {
00120 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1CMemStream.html#a17">invert</a>();
00121 }
00122
00123 <font class="comment">// to have const correctness in the prototype, we must do this...</font>
00124 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#l3">CParticleSystem</a> *myPs = const_cast<CParticleSystem *>(&ps);
00125 <a class="code" href="debug_8h.html#a6">nlassert</a>(myPs);
00126 <font class="comment">// build the prototype</font>
00127 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1IStream.html#a27">serialPtr</a>(myPs);
00128
00129 <font class="comment">// mirror some system values</font>
00130 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n1">_MaxViewDist</a> = myPs->getMaxViewDist();
00131 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n9">_DestroyWhenOutOfFrustum</a> = myPs->doesDestroyWhenOutOfFrustum();
00132 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n10">_DestroyModelWhenOutOfRange</a> = myPs->getDestroyModelWhenOutOfRange();
00133 <font class="keywordflow">if</font> (!myPs->getAutoComputeBBox())
00134 {
00135 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n11">_UsePrecomputedBBox</a> = <font class="keyword">true</font>;
00136 myPs->computeBBox(<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n2">_PrecomputedBBox</a>);
00137 }
00138 <font class="keywordflow">else</font>
00139 {
00140 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n11">_UsePrecomputedBBox</a> = <font class="keyword">false</font>;
00141 }
00142 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n12">_Sharing</a> = myPs->isSharingEnabled();
00143 }
00144
<a name="l00146"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#a8">00146</a> <font class="keywordtype">void</font> CParticleSystemShape::getAABBox(<a class="code" href="classNLMISC_1_1CAABBox.html">NLMISC::CAABBox</a> &bbox)<font class="keyword"> const</font>
00147 <font class="keyword"></font>{
00148 <font class="keywordflow">if</font> (!<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n11">_UsePrecomputedBBox</a>)
00149 {
00150 bbox.<a class="code" href="classNLMISC_1_1CAABBox.html#z249_0">setCenter</a>(<a class="code" href="classNLMISC_1_1CVector.html#p0">NLMISC::CVector::Null</a>);
00151 bbox.<a class="code" href="classNLMISC_1_1CAABBox.html#z249_1">setHalfSize</a>(<a class="code" href="classNLMISC_1_1CVector.html">NLMISC::CVector</a>(1, 1, 1));
00152 }
00153 <font class="keywordflow">else</font>
00154 {
00155 bbox = <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n2">_PrecomputedBBox</a>;
00156 }
00157 }
00158
<a name="l00160"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#a10">00160</a> CParticleSystem *CParticleSystemShape::instanciatePS(CScene &scene)
00161 {
00162 <font class="keywordflow">if</font> (<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n12">_Sharing</a> && <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n8">_SharedSystem</a> != NULL) <font class="comment">// is sharing enabled, and is a system already instanciated</font>
00163 {
00164 <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n8">_SharedSystem</a>;
00165 }
00166
00167 <font class="comment">// copy the datas</font>
00168 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#l3">CParticleSystem</a> *myInstance = NULL;
00169
00170 <font class="comment">// serialize from the memory stream </font>
00171 <font class="keywordflow">if</font> (!<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1IStream.html#a4">isReading</a>()) <font class="comment">// we must be sure that we are reading the stream</font>
00172 {
00173 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1CMemStream.html#a17">invert</a>();
00174 }
00175
00176 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1CMemStream.html#a18">resetPtrTable</a>();
00177 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1CMemStream.html#a7">seek</a>(0, IStream::begin);
00178 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n0">_ParticleSystemProto</a>.<a class="code" href="classNLMISC_1_1IStream.html#a27">serialPtr</a>(myInstance); <font class="comment">// instanciate the system </font>
00179
00180
00181 myInstance->setScene(&scene);
00182
00183 <font class="keywordflow">if</font> (_Sharing)
00184 {
00185 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#n8">_SharedSystem</a> = myInstance; <font class="comment">// set this as the first shared instance</font>
00186 }
00187
00188 <font class="keywordflow">return</font> myInstance;
00189 }
00190
<a name="l00192"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#a3">00192</a> CTransformShape *CParticleSystemShape::createInstance(CScene &scene)
00193 {
00194 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#l0">CParticleSystemModel</a> *psm = NLMISC::safe_cast<CParticleSystemModel *>(scene.createModel(NL3D::ParticleSystemModelId) );
00195 psm->Shape = <font class="keyword">this</font>;
00196 psm->_Scene = &scene; <font class="comment">// the model needs the scene to recreate the particle system he holds </font>
00197 <font class="comment">// by default, we don't instanciate the system. It will be instanciated only if visible and triggered</font>
00198 <font class="comment">// psm->_ParticleSystem = instanciatePS(scene); </font>
00199
00200 <font class="comment">// Setup position with the default value</font>
00201 psm->ITransformable::setPos( ((<a class="code" href="namespaceNL3D.html#a14">CAnimatedValueVector</a>&)<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n4">_DefaultPos</a>.getValue()).Value );
00202 psm->ITransformable::setRotQuat( ((<a class="code" href="namespaceNL3D.html#a16">CAnimatedValueQuat</a>&)<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n6">_DefaultRotQuat</a>.getValue()).Value );
00203 psm->ITransformable::setScale( ((<a class="code" href="namespaceNL3D.html#a14">CAnimatedValueVector</a>&)<a class="code" href="classNL3D_1_1CParticleSystemShape.html#n5">_DefaultScale</a>.getValue()).Value );
00204
00205 <font class="comment">// LoadBalancing backward compatibility: ParticleSystems are added to the "Global" Load Balancing Group.</font>
00206 psm->setLoadBalancingGroup(<font class="stringliteral">"Global"</font>);
00207
00208 <font class="keywordflow">return</font> psm;
00209 }
00210
<a name="l00212"></a><a class="code" href="classNL3D_1_1CParticleSystemShape.html#z606_0">00212</a> <font class="keywordtype">void</font> CParticleSystemShape::render(IDriver *drv, CTransformShape *trans, <font class="keywordtype">bool</font> passOpaque)
00213 {
00214 <a class="code" href="debug_8h.html#a6">nlassert</a>(dynamic_cast<CParticleSystemModel *>(trans));
00215 <a class="code" href="debug_8h.html#a6">nlassert</a>(drv);
00216 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#l0">CParticleSystemModel</a> *psm = (<a class="code" href="classNL3D_1_1CParticleSystemShape.html#l0">CParticleSystemModel</a> *) trans;
00217 <font class="keywordflow">if</font> (psm->_Invalidated) <font class="keywordflow">return</font>;
00218 <a class="code" href="classNL3D_1_1CParticleSystemShape.html#l3">CParticleSystem</a> *ps = psm->getPS();
00220 <font class="keywordflow">if</font> (!ps) <font class="keywordflow">return</font>;
00221
00222 <a class="code" href="namespaceNL3D.html#a1">TAnimationTime</a> delay = psm->getEllapsedTime();
00223 <a class="code" href="debug_8h.html#a6">nlassert</a>(ps->getScene());
00224
00226 <font class="comment">// render particles //</font>
00228 <font class="comment"></font>
00230 <font class="comment"> if (ps->isSharingEnabled())</font>
00231 {
00232 ps->setSysMat(trans->getWorldMatrix());
00233 }
00234
00235 <font class="comment">// Setup the matrix.</font>
00237 <font class="comment"></font>
00238 ps->setDriver(drv);
00239 <font class="comment">// draw particle</font>
00240 <a class="code" href="particle__system__shape_8cpp.html#a0">PARTICLES_CHECK_MEM</a>;
00241 <font class="keywordflow">if</font> (passOpaque)
00242 {
00243 ps->step(CParticleSystem::SolidRender, delay);
00244 }
00245 <font class="keywordflow">else</font>
00246 {
00247 ps->step(CParticleSystem::BlendRender, delay);
00248 }
00249 <a class="code" href="particle__system__shape_8cpp.html#a0">PARTICLES_CHECK_MEM</a>;
00250 <font class="keywordflow">if</font> (psm->isToolDisplayEnabled())
00251 {
00252 ps->step(CParticleSystem::ToolRender, delay);
00253 <a class="code" href="particle__system__shape_8cpp.html#a0">PARTICLES_CHECK_MEM</a>;
00254 }
00255 }
00256
00257 } <font class="comment">// NL3D</font>
</pre></div>
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