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<hr><h1>transformable.cpp</h1><a href="transformable_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="transformable_8h.html">3d/transformable.h</a>"</font>
00029 <font class="preprocessor">#include "<a class="code" href="channel__mixer_8h.html">3d/channel_mixer.h</a>"</font>
00030
00031
00032 <font class="keyword">namespace </font>NL3D
00033 {
00034
00035
00036 <font class="comment">// ***************************************************************************</font>
<a name="l00037"></a><a class="code" href="classNL3D_1_1ITransformable.html#a0">00037</a> ITransformable::ITransformable()
00038 {
00039 <font class="comment">// Set number of animated values.</font>
00040 IAnimatable::resize (<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s10">AnimValueLast</a>);
00041
00042 <font class="comment">// Deriver note: just copy this line in each ctor.</font>
00043
00044 <font class="comment">// Init default values.</font>
00045 <a class="code" href="classNL3D_1_1ITransformable.html#o1">_Mode</a>= <a class="code" href="classNL3D_1_1ITransformable.html#s11s2">RotQuat</a>;
00046 <font class="comment">// matrix init to identity.</font>
00047 <a class="code" href="classNL3D_1_1ITransformable.html#o4">_Pos</a>.Value= CVector::Null;
00048 <a class="code" href="classNL3D_1_1ITransformable.html#o5">_RotEuler</a>.Value= CVector::Null;
00049 <a class="code" href="classNL3D_1_1ITransformable.html#o6">_RotQuat</a>.Value= CQuat::Identity;
00050 <a class="code" href="classNL3D_1_1ITransformable.html#o7">_Scale</a>.Value= CVector(1,1,1);
00051 <a class="code" href="classNL3D_1_1ITransformable.html#o8">_Pivot</a>.Value= CVector::Null;
00052
00053 <a class="code" href="classNL3D_1_1ITransformable.html#o3">_LocalMatrixDate</a>= 0;
00054 }
00055
00056
00057 <font class="comment">// ***************************************************************************</font>
<a name="l00058"></a><a class="code" href="classNL3D_1_1ITransformable.html#z793_1">00058</a> IAnimatedValue* ITransformable::getValue (<a class="code" href="types__nl_8h.html#a13">uint</a> valueId)
00059 {
00060 <font class="comment">// what value ?</font>
00061 <font class="keywordflow">switch</font> (valueId)
00062 {
00063 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s5">PosValue</a>: <font class="keywordflow">return</font> &<a class="code" href="classNL3D_1_1ITransformable.html#o4">_Pos</a>;
00064 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s6">RotEulerValue</a>: <font class="keywordflow">return</font> &<a class="code" href="classNL3D_1_1ITransformable.html#o5">_RotEuler</a>;
00065 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s7">RotQuatValue</a>: <font class="keywordflow">return</font> &<a class="code" href="classNL3D_1_1ITransformable.html#o6">_RotQuat</a>;
00066 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s8">ScaleValue</a>: <font class="keywordflow">return</font> &<a class="code" href="classNL3D_1_1ITransformable.html#o7">_Scale</a>;
00067 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s9">PivotValue</a>: <font class="keywordflow">return</font> &<a class="code" href="classNL3D_1_1ITransformable.html#o8">_Pivot</a>;
00068 }
00069
00070 <font class="comment">// No, only ITrnasformable values!</font>
00071 <a class="code" href="debug_8h.html#a12">nlstop</a>;
00072 <font class="comment">// Deriver note: else call BaseClass::getValue(valueId);</font>
00073
00074 <font class="keywordflow">return</font> NULL;
00075 }
00076 <font class="comment">// ***************************************************************************</font>
<a name="l00077"></a><a class="code" href="classNL3D_1_1ITransformable.html#z793_2">00077</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *ITransformable::getValueName (<a class="code" href="types__nl_8h.html#a13">uint</a> valueId)<font class="keyword"> const</font>
00078 <font class="keyword"></font>{
00079 <font class="comment">// what value ?</font>
00080 <font class="keywordflow">switch</font> (valueId)
00081 {
00082 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s5">PosValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1ITransformable.html#d0">getPosValueName</a> ();
00083 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s6">RotEulerValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1ITransformable.html#d1">getRotEulerValueName</a>();
00084 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s7">RotQuatValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1ITransformable.html#d2">getRotQuatValueName</a>();
00085 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s8">ScaleValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1ITransformable.html#d3">getScaleValueName</a>();
00086 <font class="keywordflow">case</font> <a class="code" href="classNL3D_1_1ITransformable.html#z793_0s9">PivotValue</a>: <font class="keywordflow">return</font> <a class="code" href="classNL3D_1_1ITransformable.html#d4">getPivotValueName</a>();
00087 }
00088
00089 <font class="comment">// No, only ITrnasformable values!</font>
00090 <a class="code" href="debug_8h.html#a12">nlstop</a>;
00091 <font class="comment">// Deriver note: else call BaseClass::getValueName(valueId);</font>
00092
00093 <font class="keywordflow">return</font> <font class="stringliteral">""</font>;
00094 }
00095
00096 <font class="comment">// ***************************************************************************</font>
<a name="l00097"></a><a class="code" href="classNL3D_1_1ITransformable.html#d0">00097</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *ITransformable::getPosValueName ()
00098 {
00099 <font class="keywordflow">return</font> <font class="stringliteral">"pos"</font>;
00100 }
00101 <font class="comment">// ***************************************************************************</font>
<a name="l00102"></a><a class="code" href="classNL3D_1_1ITransformable.html#d1">00102</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *ITransformable::getRotEulerValueName()
00103 {
00104 <font class="keywordflow">return</font> <font class="stringliteral">"roteuler"</font>;
00105 }
00106 <font class="comment">// ***************************************************************************</font>
<a name="l00107"></a><a class="code" href="classNL3D_1_1ITransformable.html#d2">00107</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *ITransformable::getRotQuatValueName()
00108 {
00109 <font class="keywordflow">return</font> <font class="stringliteral">"rotquat"</font>;
00110 }
00111 <font class="comment">// ***************************************************************************</font>
<a name="l00112"></a><a class="code" href="classNL3D_1_1ITransformable.html#d3">00112</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *ITransformable::getScaleValueName()
00113 {
00114 <font class="keywordflow">return</font> <font class="stringliteral">"scale"</font>;
00115 }
00116 <font class="comment">// ***************************************************************************</font>
<a name="l00117"></a><a class="code" href="classNL3D_1_1ITransformable.html#d4">00117</a> <font class="keyword">const</font> <font class="keywordtype">char</font> *ITransformable::getPivotValueName()
00118 {
00119 <font class="keywordflow">return</font> <font class="stringliteral">"pivot"</font>;
00120 }
00121
00122
00123 <font class="comment">// ***************************************************************************</font>
<a name="l00124"></a><a class="code" href="classNL3D_1_1ITransformable.html#c0">00124</a> <font class="keywordtype">void</font> ITransformable::clearTransformFlags()<font class="keyword"> const</font>
00125 <font class="keyword"></font>{
00126 <a class="code" href="classNL3D_1_1ITransformable.html#a0">ITransformable</a> *self= const_cast<ITransformable*>(this);
00127
00128 <font class="comment">// clear my falgs.</font>
00129 self->clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s5">PosValue</a>);
00130 self->clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s6">RotEulerValue</a>);
00131 self->clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s7">RotQuatValue</a>);
00132 self->clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s8">ScaleValue</a>);
00133 self->clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s9">PivotValue</a>);
00134
00135 <font class="comment">// We are OK!</font>
00136 self->clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s4">OwnerBit</a>);
00137 }
00138
00139
00140 <font class="comment">// ***************************************************************************</font>
<a name="l00141"></a><a class="code" href="classNL3D_1_1ITransformable.html#c1">00141</a> <font class="keywordtype">void</font> ITransformable::updateMatrix()<font class="keyword"> const</font>
00142 <font class="keyword"></font>{
00143 <font class="comment">// should we update?</font>
00144 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1ITransformable.html#c2">needCompute</a>())
00145 {
00146 <a class="code" href="classNL3D_1_1ITransformable.html#c0">clearTransformFlags</a>();
00147 <font class="comment">// update scale date (so sons are informed of change).</font>
00148 <a class="code" href="classNL3D_1_1ITransformable.html#o3">_LocalMatrixDate</a>++;
00149
00150 <font class="comment">// update the matrix.</font>
00151 <a class="code" href="classNL3D_1_1ITransformable.html#o0">_LocalMatrix</a>.identity();
00152
00153 <font class="comment">// father scale will be herited.</font>
00154 <font class="comment">// T*P</font>
00155 <a class="code" href="classNL3D_1_1ITransformable.html#o0">_LocalMatrix</a>.translate(<a class="code" href="classNL3D_1_1ITransformable.html#o4">_Pos</a>.Value+<a class="code" href="classNL3D_1_1ITransformable.html#o8">_Pivot</a>.Value);
00156
00157 <font class="comment">// R*S*P-1.</font>
00158 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1ITransformable.html#o1">_Mode</a>==<a class="code" href="classNL3D_1_1ITransformable.html#s11s1">RotEuler</a>)
00159 <a class="code" href="classNL3D_1_1ITransformable.html#o0">_LocalMatrix</a>.rotate(<a class="code" href="classNL3D_1_1ITransformable.html#o5">_RotEuler</a>.Value, <a class="code" href="classNL3D_1_1ITransformable.html#o2">_RotOrder</a>);
00160 <font class="keywordflow">else</font>
00161 <a class="code" href="classNL3D_1_1ITransformable.html#o0">_LocalMatrix</a>.rotate(<a class="code" href="classNL3D_1_1ITransformable.html#o6">_RotQuat</a>.Value);
00162 <a class="code" href="classNL3D_1_1ITransformable.html#o0">_LocalMatrix</a>.scale(<a class="code" href="classNL3D_1_1ITransformable.html#o7">_Scale</a>.Value);
00163 <a class="code" href="classNL3D_1_1ITransformable.html#o0">_LocalMatrix</a>.translate(-<a class="code" href="classNL3D_1_1ITransformable.html#o8">_Pivot</a>.Value);
00164 }
00165 }
00166
00167
00168 <font class="comment">// ***************************************************************************</font>
<a name="l00169"></a><a class="code" href="classNL3D_1_1ITransformable.html#z792_0">00169</a> <font class="keywordtype">void</font> ITransformable::lookAt (<font class="keyword">const</font> CVector& eye, <font class="keyword">const</font> CVector& target, <font class="keywordtype">float</font> roll)
00170 {
00171 <a class="code" href="debug_8h.html#a6">nlassert</a>(<a class="code" href="classNL3D_1_1ITransformable.html#o1">_Mode</a>==<a class="code" href="classNL3D_1_1ITransformable.html#s11s2">RotQuat</a> || <a class="code" href="classNL3D_1_1ITransformable.html#o1">_Mode</a>==<a class="code" href="classNL3D_1_1ITransformable.html#s11s0">DirectMatrix</a>);
00172
00173 <font class="comment">// Roll matrix</font>
00174 CMatrix rollMT;
00175 rollMT.identity();
00176 <font class="keywordflow">if</font> (roll!=0.f)
00177 rollMT.rotateY (roll);
00178
00179 <font class="comment">// Make the target base</font>
00180 CVector j=target;
00181 j-=eye;
00182 j.normalize();
00183 CVector i=j^CVector (0,0,1.f);
00184 CVector k=i^j;
00185 k.normalize();
00186 i=j^k;
00187 i.normalize();
00188
00189 <font class="comment">// Make the target matrix</font>
00190 CMatrix targetMT;
00191 targetMT.identity();
00192 targetMT.setRot (i, j, k);
00193 targetMT.setPos (eye);
00194
00195 <font class="comment">// Compose matrix</font>
00196 targetMT*=rollMT;
00197
00198 <font class="comment">// Set the matrix</font>
00199 <font class="keywordflow">if</font>(<a class="code" href="classNL3D_1_1ITransformable.html#o1">_Mode</a>==<a class="code" href="classNL3D_1_1ITransformable.html#s11s0">DirectMatrix</a>)
00200 <a class="code" href="classNL3D_1_1ITransformable.html#z790_10">setMatrix</a> (targetMT);
00201 <font class="keywordflow">else</font>
00202 {
00203 <font class="comment">// transfrom to quaternion mode.</font>
00204 <a class="code" href="classNL3D_1_1ITransformable.html#z790_5">setScale</a>(CVector(1,1,1));
00205 <a class="code" href="classNL3D_1_1ITransformable.html#z790_8">setPivot</a>(CVector::Null);
00206 <a class="code" href="classNL3D_1_1ITransformable.html#z790_0">setPos</a>(targetMT.getPos());
00207 <a class="code" href="classNL3D_1_1ITransformable.html#z790_4">setRotQuat</a>(targetMT.getRot());
00208 }
00209 }
00210
00211
00212
00213 } <font class="comment">// NL3D</font>
</pre></div>
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