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authorneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
committerneodarz <neodarz@neodarz.net>2018-08-11 20:21:34 +0200
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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> &amp;<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> &amp;<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> &amp;<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> &amp;<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> &amp;<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&lt;ITransformable*&gt;(this);
+00127
+00128 <font class="comment">// clear my falgs.</font>
+00129 self-&gt;clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s5">PosValue</a>);
+00130 self-&gt;clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s6">RotEulerValue</a>);
+00131 self-&gt;clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s7">RotQuatValue</a>);
+00132 self-&gt;clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s8">ScaleValue</a>);
+00133 self-&gt;clearFlag(<a class="code" href="classNL3D_1_1ITransformable.html#z793_0s9">PivotValue</a>);
+00134
+00135 <font class="comment">// We are OK!</font>
+00136 self-&gt;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&amp; eye, <font class="keyword">const</font> CVector&amp; 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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