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lib64kdegames1-devel-3.5.9-2mdv2008.1.x86_64.rpm

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<h1>kgrid2d.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*</span>
<a name="l00002"></a>00002 <span class="comment">    This file is part of the KDE games library</span>
<a name="l00003"></a>00003 <span class="comment">    Copyright (C) 2001-02 Nicolas Hadacek (hadacek@kde.org)</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">    This library is free software; you can redistribute it and/or</span>
<a name="l00006"></a>00006 <span class="comment">    modify it under the terms of the GNU Library General Public</span>
<a name="l00007"></a>00007 <span class="comment">    License version 2 as published by the Free Software Foundation.</span>
<a name="l00008"></a>00008 <span class="comment"></span>
<a name="l00009"></a>00009 <span class="comment">    This library is distributed in the hope that it will be useful,</span>
<a name="l00010"></a>00010 <span class="comment">    but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00011"></a>00011 <span class="comment">    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU</span>
<a name="l00012"></a>00012 <span class="comment">    Library General Public License for more details.</span>
<a name="l00013"></a>00013 <span class="comment"></span>
<a name="l00014"></a>00014 <span class="comment">    You should have received a copy of the GNU Library General Public License</span>
<a name="l00015"></a>00015 <span class="comment">    along with this library; see the file COPYING.LIB.  If not, write to</span>
<a name="l00016"></a>00016 <span class="comment">    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,</span>
<a name="l00017"></a>00017 <span class="comment">    Boston, MA 02110-1301, USA.</span>
<a name="l00018"></a>00018 <span class="comment">*/</span>
<a name="l00019"></a>00019 
<a name="l00020"></a>00020 <span class="preprocessor">#ifndef __KGRID2D_H_</span>
<a name="l00021"></a>00021 <span class="preprocessor"></span><span class="preprocessor">#define __KGRID2D_H_</span>
<a name="l00022"></a>00022 <span class="preprocessor"></span>
<a name="l00023"></a>00023 <span class="preprocessor">#include &lt;math.h&gt;</span>
<a name="l00024"></a>00024 
<a name="l00025"></a>00025 <span class="preprocessor">#include &lt;qpair.h&gt;</span>
<a name="l00026"></a>00026 <span class="preprocessor">#include &lt;qvaluelist.h&gt;</span>
<a name="l00027"></a>00027 <span class="preprocessor">#include &lt;qvaluevector.h&gt;</span>
<a name="l00028"></a>00028 
<a name="l00029"></a>00029 <span class="preprocessor">#include &lt;kglobal.h&gt;</span>
<a name="l00030"></a>00030 
<a name="l00031"></a>00031 
<a name="l00032"></a>00032 <span class="comment">//-----------------------------------------------------------------------------</span>
<a name="l00033"></a>00033 <span class="keyword">namespace </span>KGrid2D
<a name="l00034"></a>00034 {
<a name="l00039"></a>00039     <span class="keyword">typedef</span> QPair&lt;int, int&gt; Coord;
<a name="l00040"></a>00040 
<a name="l00045"></a>00045     <span class="keyword">typedef</span> QValueList&lt;Coord&gt; CoordList;
<a name="l00046"></a>00046 }
<a name="l00047"></a>00047 
<a name="l00048"></a>00048 <span class="keyword">inline</span> KGrid2D::Coord
<a name="l00049"></a>00049 operator +(<span class="keyword">const</span> KGrid2D::Coord &amp;c1, <span class="keyword">const</span> KGrid2D::Coord &amp;c2) {
<a name="l00050"></a>00050     <span class="keywordflow">return</span> KGrid2D::Coord(c1.first + c2.first, c1.second + c2.second);
<a name="l00051"></a>00051 }
<a name="l00052"></a>00052 
<a name="l00053"></a>00053 <span class="keyword">inline</span> KGrid2D::Coord
<a name="l00054"></a>00054 operator -(<span class="keyword">const</span> KGrid2D::Coord &amp;c1, <span class="keyword">const</span> KGrid2D::Coord &amp;c2) {
<a name="l00055"></a>00055     <span class="keywordflow">return</span> KGrid2D::Coord(c1.first - c2.first, c1.second - c2.second);
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057 
<a name="l00062"></a>00062 <span class="keyword">inline</span> KGrid2D::Coord
<a name="l00063"></a>00063 maximum(<span class="keyword">const</span> KGrid2D::Coord &amp;c1, <span class="keyword">const</span> KGrid2D::Coord &amp;c2) {
<a name="l00064"></a>00064     <span class="keywordflow">return</span> KGrid2D::Coord(kMax(c1.first, c2.first), kMax(c1.second, c2.second));
<a name="l00065"></a>00065 }
<a name="l00070"></a>00070 <span class="keyword">inline</span> KGrid2D::Coord
<a name="l00071"></a>00071 minimum(<span class="keyword">const</span> KGrid2D::Coord &amp;c1, <span class="keyword">const</span> KGrid2D::Coord &amp;c2) {
<a name="l00072"></a>00072     <span class="keywordflow">return</span> KGrid2D::Coord(kMin(c1.first, c2.first), kMin(c1.second, c2.second));
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074 
<a name="l00075"></a>00075 <span class="keyword">inline</span> QTextStream &amp;operator &lt;&lt;(QTextStream &amp;s, <span class="keyword">const</span> KGrid2D::Coord &amp;c) {
<a name="l00076"></a>00076     <span class="keywordflow">return</span> s &lt;&lt; <span class="charliteral">'('</span> &lt;&lt; c.second &lt;&lt; <span class="stringliteral">", "</span> &lt;&lt; c.first &lt;&lt; <span class="charliteral">')'</span>;
<a name="l00077"></a>00077 }
<a name="l00078"></a>00078 
<a name="l00079"></a>00079 <span class="keyword">inline</span> QTextStream &amp;operator &lt;&lt;(QTextStream &amp;s, <span class="keyword">const</span> KGrid2D::CoordList &amp;list)
<a name="l00080"></a>00080 {
<a name="l00081"></a>00081     <span class="keywordflow">for</span>(KGrid2D::CoordList::const_iterator i=list.begin(); i!=list.end(); ++i)
<a name="l00082"></a>00082         s &lt;&lt; *i;
<a name="l00083"></a>00083     <span class="keywordflow">return</span> s;
<a name="l00084"></a>00084 }
<a name="l00085"></a>00085 
<a name="l00086"></a>00086 <span class="comment">//-----------------------------------------------------------------------------</span>
<a name="l00087"></a>00087 <span class="keyword">namespace </span>KGrid2D
<a name="l00088"></a>00088 {
<a name="l00095"></a>00095 <span class="keyword">template</span> &lt;<span class="keyword">class</span> Type&gt;
<a name="l00096"></a><a class="code" href="classKGrid2D_1_1Generic.html">00096</a> <span class="keyword">class </span><a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic</a>
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098  <span class="keyword">public</span>:
<a name="l00102"></a><a class="code" href="classKGrid2D_1_1Generic.html#21be4dd4c916115b8e5eb9fc726dc116">00102</a>     <a class="code" href="classKGrid2D_1_1Generic.html#21be4dd4c916115b8e5eb9fc726dc116" title="Constructor.">Generic</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a> = 0, uint <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a> = 0) {
<a name="l00103"></a>00103         <a class="code" href="classKGrid2D_1_1Generic.html#9e56a30f1e0c7b88233297ea1794d226" title="Resize the grid.">resize</a>(<a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a>, <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a>);
<a name="l00104"></a>00104     }
<a name="l00105"></a>00105 
<a name="l00106"></a>00106     <span class="keyword">virtual</span> ~<a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic</a>() {}
<a name="l00107"></a>00107 
<a name="l00111"></a><a class="code" href="classKGrid2D_1_1Generic.html#9e56a30f1e0c7b88233297ea1794d226">00111</a>     <span class="keywordtype">void</span> <a class="code" href="classKGrid2D_1_1Generic.html#9e56a30f1e0c7b88233297ea1794d226" title="Resize the grid.">resize</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a>, uint <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a>) {
<a name="l00112"></a>00112         _width = width;
<a name="l00113"></a>00113         _height = height;
<a name="l00114"></a>00114         _vector.resize(width*height);
<a name="l00115"></a>00115     }
<a name="l00116"></a>00116 
<a name="l00120"></a><a class="code" href="classKGrid2D_1_1Generic.html#76987dd0b191f8ea71f8e877dd25aab1">00120</a>     <span class="keywordtype">void</span> <a class="code" href="classKGrid2D_1_1Generic.html#76987dd0b191f8ea71f8e877dd25aab1" title="Fill the nodes with the given value.">fill</a>(<span class="keyword">const</span> Type &amp;value) {
<a name="l00121"></a>00121         <span class="keywordflow">for</span> (uint i=0; i&lt;_vector.count(); i++) _vector[i] = value;
<a name="l00122"></a>00122     }
<a name="l00123"></a>00123 
<a name="l00127"></a><a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">00127</a>     uint <a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a>()<span class="keyword"> const  </span>{ <span class="keywordflow">return</span> _width; }
<a name="l00131"></a><a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">00131</a>     uint <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _height; }
<a name="l00135"></a><a class="code" href="classKGrid2D_1_1Generic.html#9dab1045e50f1bb07e575e3e555516e4">00135</a>     uint <a class="code" href="classKGrid2D_1_1Generic.html#9dab1045e50f1bb07e575e3e555516e4">size</a>()<span class="keyword"> const   </span>{ <span class="keywordflow">return</span> _width*_height; }
<a name="l00136"></a>00136 
<a name="l00140"></a><a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">00140</a>     uint <a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>(<span class="keyword">const</span> Coord &amp;c)<span class="keyword"> const </span>{
<a name="l00141"></a>00141         <span class="keywordflow">return</span> c.first + c.second*_width;
<a name="l00142"></a>00142     }
<a name="l00143"></a>00143 
<a name="l00147"></a><a class="code" href="classKGrid2D_1_1Generic.html#7adbdff43355ae9710369dc12dacf9c7">00147</a>     Coord <a class="code" href="classKGrid2D_1_1Generic.html#7adbdff43355ae9710369dc12dacf9c7">coord</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>)<span class="keyword"> const </span>{
<a name="l00148"></a>00148         <span class="keywordflow">return</span> Coord(index % _width, index / _width);
<a name="l00149"></a>00149     }
<a name="l00150"></a>00150 
<a name="l00154"></a><a class="code" href="classKGrid2D_1_1Generic.html#78c9836b380fca4d5ad0edf66898a8df">00154</a>     <span class="keyword">const</span> Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#78c9836b380fca4d5ad0edf66898a8df">at</a>(<span class="keyword">const</span> Coord &amp;c)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _vector[<a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>(c)]; }
<a name="l00158"></a><a class="code" href="classKGrid2D_1_1Generic.html#a81cacf3b6194615156256c653cd9fe6">00158</a>     Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#78c9836b380fca4d5ad0edf66898a8df">at</a>(<span class="keyword">const</span> Coord &amp;c)             { <span class="keywordflow">return</span> _vector[<a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>(c)]; }
<a name="l00162"></a><a class="code" href="classKGrid2D_1_1Generic.html#43879cfa352b06837b78a2d6d7bf2654">00162</a>     <span class="keyword">const</span> Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#43879cfa352b06837b78a2d6d7bf2654">operator []</a>(<span class="keyword">const</span> Coord &amp;c)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _vector[<a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>(c)]; }
<a name="l00166"></a><a class="code" href="classKGrid2D_1_1Generic.html#c6874abfd5efb64af88971c76b411733">00166</a>     Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#43879cfa352b06837b78a2d6d7bf2654">operator []</a>(<span class="keyword">const</span> Coord &amp;c)             { <span class="keywordflow">return</span> _vector[<a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>(c)]; }
<a name="l00167"></a>00167 
<a name="l00171"></a><a class="code" href="classKGrid2D_1_1Generic.html#7db4ef742436981df4058987e130433d">00171</a>     <span class="keyword">const</span> Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#78c9836b380fca4d5ad0edf66898a8df">at</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>)<span class="keyword"> const          </span>{ <span class="keywordflow">return</span> _vector[index]; }
<a name="l00175"></a><a class="code" href="classKGrid2D_1_1Generic.html#5cdbf1ced092545bc1d3e339f856e362">00175</a>     Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#78c9836b380fca4d5ad0edf66898a8df">at</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>)                      { <span class="keywordflow">return</span> _vector[index]; }
<a name="l00179"></a><a class="code" href="classKGrid2D_1_1Generic.html#734e0e9b5e51dda00d1aa9d0904f306f">00179</a>     <span class="keyword">const</span> Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#43879cfa352b06837b78a2d6d7bf2654">operator []</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>)<span class="keyword"> const </span>{ <span class="keywordflow">return</span> _vector[index]; }
<a name="l00183"></a><a class="code" href="classKGrid2D_1_1Generic.html#25ca57641701213b5e9fd9e229a3b94d">00183</a>     Type &amp;<a class="code" href="classKGrid2D_1_1Generic.html#43879cfa352b06837b78a2d6d7bf2654">operator []</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#4d1fbebc7657e75fe0c04a0361093017">index</a>)             { <span class="keywordflow">return</span> _vector[index]; }
<a name="l00184"></a>00184 
<a name="l00188"></a><a class="code" href="classKGrid2D_1_1Generic.html#f16fa88ab35dc89968fb93da1a3095e8">00188</a>     <span class="keywordtype">bool</span> <a class="code" href="classKGrid2D_1_1Generic.html#f16fa88ab35dc89968fb93da1a3095e8">inside</a>(<span class="keyword">const</span> Coord &amp;c)<span class="keyword"> const </span>{
<a name="l00189"></a>00189         <span class="keywordflow">return</span> ( c.first&gt;=0 &amp;&amp; c.first&lt;(<span class="keywordtype">int</span>)_width
<a name="l00190"></a>00190                  &amp;&amp; c.second&gt;=0 &amp;&amp; c.second&lt;(<span class="keywordtype">int</span>)_height );
<a name="l00191"></a>00191     }
<a name="l00192"></a>00192 
<a name="l00196"></a><a class="code" href="classKGrid2D_1_1Generic.html#3d9bb9250d4dd65787b3a3a6097e6a9f">00196</a>     <span class="keywordtype">void</span> <a class="code" href="classKGrid2D_1_1Generic.html#3d9bb9250d4dd65787b3a3a6097e6a9f" title="Bound the given coordinate with the grid dimensions.">bound</a>(Coord &amp;c)<span class="keyword"> const </span>{
<a name="l00197"></a>00197         c.first = kMax(kMin(c.first, (<span class="keywordtype">int</span>)_width-1), 0);
<a name="l00198"></a>00198         c.second = kMax(kMin(c.second, (<span class="keywordtype">int</span>)_height-1), 0);
<a name="l00199"></a>00199     }
<a name="l00200"></a>00200 
<a name="l00201"></a>00201  <span class="keyword">protected</span>:
<a name="l00202"></a>00202     uint               _width, _height;
<a name="l00203"></a>00203     QValueVector&lt;Type&gt; _vector;
<a name="l00204"></a>00204 };
<a name="l00205"></a>00205 }
<a name="l00206"></a>00206 
<a name="l00207"></a>00207 <span class="keyword">template</span> &lt;<span class="keyword">class</span> Type&gt;
<a name="l00208"></a>00208 QDataStream &amp;operator &lt;&lt;(QDataStream &amp;s, const KGrid2D::Generic&lt;Type&gt; &amp;m) {
<a name="l00209"></a>00209     s &lt;&lt; (Q_UINT32)m.width() &lt;&lt; (Q_UINT32)m.height();
<a name="l00210"></a>00210     <span class="keywordflow">for</span> (uint i=0; i&lt;m.size(); i++) s &lt;&lt; m[i];
<a name="l00211"></a>00211     <span class="keywordflow">return</span> s;
<a name="l00212"></a>00212 }
<a name="l00213"></a>00213 
<a name="l00214"></a>00214 <span class="keyword">template</span> &lt;<span class="keyword">class</span> Type&gt;
<a name="l00215"></a>00215 QDataStream &amp;operator &gt;&gt;(QDataStream &amp;s, <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">KGrid2D::Generic&lt;Type&gt;</a> &amp;m) {
<a name="l00216"></a>00216     Q_UINT32 w, h;
<a name="l00217"></a>00217     s &gt;&gt; w &gt;&gt; h;
<a name="l00218"></a>00218     m.<a class="code" href="classKGrid2D_1_1Generic.html#9e56a30f1e0c7b88233297ea1794d226" title="Resize the grid.">resize</a>(w, h);
<a name="l00219"></a>00219     <span class="keywordflow">for</span> (uint i=0; i&lt;m.<a class="code" href="classKGrid2D_1_1Generic.html#9dab1045e50f1bb07e575e3e555516e4">size</a>(); i++) s &gt;&gt; m[i];
<a name="l00220"></a>00220     <span class="keywordflow">return</span> s;
<a name="l00221"></a>00221 }
<a name="l00222"></a>00222 
<a name="l00223"></a>00223 
<a name="l00224"></a>00224 <span class="keyword">namespace </span>KGrid2D
<a name="l00225"></a>00225 {
<a name="l00226"></a>00226 
<a name="l00227"></a>00227 <span class="comment">//-----------------------------------------------------------------------------</span>
<a name="l00234"></a><a class="code" href="classKGrid2D_1_1SquareBase.html">00234</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classKGrid2D_1_1SquareBase.html" title="This class contains static methods to manipulate coordinates for a square bidimensionnal...">SquareBase</a>
<a name="l00235"></a>00235 {
<a name="l00236"></a>00236  <span class="keyword">public</span>:
<a name="l00240"></a><a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5">00240</a>     <span class="keyword">enum</span> <a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> { Left=0, Right, Up, Down, LeftUp, LeftDown,
<a name="l00241"></a>00241                      RightUp, RightDown, Nb_Neighbour };
<a name="l00242"></a>00242 
<a name="l00246"></a><a class="code" href="classKGrid2D_1_1SquareBase.html#91f1d108210f6a81932fc51df97aa15f">00246</a>     <span class="keyword">static</span> <span class="keywordtype">double</span> <a class="code" href="classKGrid2D_1_1SquareBase.html#91f1d108210f6a81932fc51df97aa15f">angle</a>(<a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> n) {
<a name="l00247"></a>00247         <span class="keywordflow">switch</span> (n) {
<a name="l00248"></a>00248         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> M_PI;
<a name="l00249"></a>00249         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> 0;
<a name="l00250"></a>00250         <span class="keywordflow">case</span> Up:        <span class="keywordflow">return</span> M_PI_2;
<a name="l00251"></a>00251         <span class="keywordflow">case</span> Down:      <span class="keywordflow">return</span> -M_PI_2;
<a name="l00252"></a>00252         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> 3.0*M_PI_4;
<a name="l00253"></a>00253         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> -3.0*M_PI_4;
<a name="l00254"></a>00254         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> M_PI_4;
<a name="l00255"></a>00255         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> -M_PI_4;
<a name="l00256"></a>00256         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00257"></a>00257         }
<a name="l00258"></a>00258         <span class="keywordflow">return</span> 0;
<a name="l00259"></a>00259     }
<a name="l00260"></a>00260 
<a name="l00264"></a><a class="code" href="classKGrid2D_1_1SquareBase.html#3c50ad36944fa44133721bc3491d10ab">00264</a>     <span class="keyword">static</span> <a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> <a class="code" href="classKGrid2D_1_1SquareBase.html#3c50ad36944fa44133721bc3491d10ab">opposed</a>(<a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> n) {
<a name="l00265"></a>00265         <span class="keywordflow">switch</span> (n) {
<a name="l00266"></a>00266         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> Right;
<a name="l00267"></a>00267         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> Left;
<a name="l00268"></a>00268         <span class="keywordflow">case</span> Up:        <span class="keywordflow">return</span> Down;
<a name="l00269"></a>00269         <span class="keywordflow">case</span> Down:      <span class="keywordflow">return</span> Up;
<a name="l00270"></a>00270         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> RightDown;
<a name="l00271"></a>00271         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> RightUp;
<a name="l00272"></a>00272         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> LeftDown;
<a name="l00273"></a>00273         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> LeftUp;
<a name="l00274"></a>00274         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00275"></a>00275         }
<a name="l00276"></a>00276         <span class="keywordflow">return</span> Nb_Neighbour;
<a name="l00277"></a>00277     }
<a name="l00278"></a>00278 
<a name="l00283"></a><a class="code" href="classKGrid2D_1_1SquareBase.html#2f8a1713de15d373015ba0789ca60ec9">00283</a>     <span class="keyword">static</span> <span class="keywordtype">bool</span> <a class="code" href="classKGrid2D_1_1SquareBase.html#2f8a1713de15d373015ba0789ca60ec9">isDirect</a>(<a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> n) { <span class="keywordflow">return</span> n&lt;LeftUp; }
<a name="l00284"></a>00284 
<a name="l00288"></a><a class="code" href="classKGrid2D_1_1SquareBase.html#7ec8248c41b2bf2bdb0770b4011e4c0e">00288</a>     <span class="keyword">static</span> Coord <a class="code" href="classKGrid2D_1_1SquareBase.html#7ec8248c41b2bf2bdb0770b4011e4c0e">neighbour</a>(<span class="keyword">const</span> Coord &amp;c, <a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> n) {
<a name="l00289"></a>00289         <span class="keywordflow">switch</span> (n) {
<a name="l00290"></a>00290         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> c + Coord(-1,  0);
<a name="l00291"></a>00291         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> c + Coord( 1,  0);
<a name="l00292"></a>00292         <span class="keywordflow">case</span> Up:        <span class="keywordflow">return</span> c + Coord( 0, -1);
<a name="l00293"></a>00293         <span class="keywordflow">case</span> Down:      <span class="keywordflow">return</span> c + Coord( 0,  1);
<a name="l00294"></a>00294         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> c + Coord(-1, -1);
<a name="l00295"></a>00295         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> c + Coord(-1,  1);
<a name="l00296"></a>00296         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> c + Coord( 1, -1);
<a name="l00297"></a>00297         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> c + Coord( 1,  1);
<a name="l00298"></a>00298         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00299"></a>00299         }
<a name="l00300"></a>00300         <span class="keywordflow">return</span> c;
<a name="l00301"></a>00301     }
<a name="l00302"></a>00302 };
<a name="l00303"></a>00303 
<a name="l00310"></a>00310 <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;
<a name="l00311"></a><a class="code" href="classKGrid2D_1_1Square.html">00311</a> <span class="keyword">class </span><a class="code" href="classKGrid2D_1_1Square.html" title="This template is a Generic implementation for a square bidimensionnal grid (SquareBase)...">Square</a> : <span class="keyword">public</span> <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic</a>&lt;T&gt;, <span class="keyword">public</span> <a class="code" href="classKGrid2D_1_1SquareBase.html" title="This class contains static methods to manipulate coordinates for a square bidimensionnal...">SquareBase</a>
<a name="l00312"></a>00312 {
<a name="l00313"></a>00313  <span class="keyword">public</span>:
<a name="l00317"></a><a class="code" href="classKGrid2D_1_1Square.html#1569feed377ac2f5b8eb096dce1135ce">00317</a>     <a class="code" href="classKGrid2D_1_1Square.html#1569feed377ac2f5b8eb096dce1135ce" title="Constructor.">Square</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a> = 0, uint <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a> = 0)
<a name="l00318"></a>00318         : <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic</a>&lt;T&gt;(<a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a>, <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a>) {}
<a name="l00319"></a>00319 
<a name="l00327"></a><a class="code" href="classKGrid2D_1_1Square.html#b322f1549f1a5fa2c10fcbca5197d7d8">00327</a>     CoordList <a class="code" href="classKGrid2D_1_1Square.html#b322f1549f1a5fa2c10fcbca5197d7d8">neighbours</a>(<span class="keyword">const</span> Coord &amp;c, <span class="keywordtype">bool</span> insideOnly = <span class="keyword">true</span>,
<a name="l00328"></a>00328                          <span class="keywordtype">bool</span> directOnly = <span class="keyword">false</span>)<span class="keyword"> const </span>{
<a name="l00329"></a>00329         CoordList <a class="code" href="classKGrid2D_1_1Square.html#b322f1549f1a5fa2c10fcbca5197d7d8">neighbours</a>;
<a name="l00330"></a>00330         <span class="keywordflow">for</span> (uint i=0; i&lt;(directOnly ? LeftUp : Nb_Neighbour); i++) {
<a name="l00331"></a>00331             Coord n = <a class="code" href="classKGrid2D_1_1SquareBase.html#7ec8248c41b2bf2bdb0770b4011e4c0e">neighbour</a>(c, (<a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a>)i);
<a name="l00332"></a>00332             <span class="keywordflow">if</span> ( insideOnly &amp;&amp; !<a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::inside</a>(n) ) <span class="keywordflow">continue</span>;
<a name="l00333"></a>00333             neighbours.append(n);
<a name="l00334"></a>00334         }
<a name="l00335"></a>00335         <span class="keywordflow">return</span> neighbours;
<a name="l00336"></a>00336     }
<a name="l00337"></a>00337 
<a name="l00344"></a><a class="code" href="classKGrid2D_1_1Square.html#ce5e5be9d2684edc16984513f5ae2b91">00344</a>     Coord <a class="code" href="classKGrid2D_1_1Square.html#ce5e5be9d2684edc16984513f5ae2b91">toEdge</a>(<span class="keyword">const</span> Coord &amp;c, <a class="code" href="classKGrid2D_1_1SquareBase.html#40ab5d0c2ff1dd3389e228d870f305d5" title="Identify the eight neighbours.">Neighbour</a> n)<span class="keyword"> const </span>{
<a name="l00345"></a>00345         <span class="keywordflow">switch</span> (n) {
<a name="l00346"></a>00346         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> Coord(0, c.second);
<a name="l00347"></a>00347         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> Coord(<a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::width</a>()-1, c.second);
<a name="l00348"></a>00348         <span class="keywordflow">case</span> Up:        <span class="keywordflow">return</span> Coord(c.first, 0);
<a name="l00349"></a>00349         <span class="keywordflow">case</span> Down:      <span class="keywordflow">return</span> Coord(c.first, <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::height</a>()-1);
<a name="l00350"></a>00350         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> Coord(0, 0);
<a name="l00351"></a>00351         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> Coord(0, <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::height</a>()-1);
<a name="l00352"></a>00352         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> Coord(<a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::width</a>()-1, 0);
<a name="l00353"></a>00353         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> Coord(<a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::width</a>()-1, <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;T&gt;::height</a>()-1);
<a name="l00354"></a>00354         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00355"></a>00355         }
<a name="l00356"></a>00356         <span class="keywordflow">return</span> c;
<a name="l00357"></a>00357     }
<a name="l00358"></a>00358 };
<a name="l00359"></a>00359 
<a name="l00360"></a>00360 <span class="comment">//-----------------------------------------------------------------------------</span>
<a name="l00372"></a><a class="code" href="classKGrid2D_1_1HexagonalBase.html">00372</a> <span class="comment"></span><span class="keyword">class </span><a class="code" href="classKGrid2D_1_1HexagonalBase.html" title="This class contains static methods to manipulate coordinates on an hexagonal grid...">HexagonalBase</a>
<a name="l00373"></a>00373 {
<a name="l00374"></a>00374  <span class="keyword">public</span>:
<a name="l00378"></a><a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e">00378</a>     <span class="keyword">enum</span> <a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e" title="Identify the six neighbours.">Neighbour</a> { Left = 0, Right, LeftUp, LeftDown,
<a name="l00379"></a>00379                      RightUp, RightDown, Nb_Neighbour };
<a name="l00380"></a>00380 
<a name="l00384"></a><a class="code" href="classKGrid2D_1_1HexagonalBase.html#e52b5c82bfa275ac295cac0b1881a361">00384</a>     <span class="keyword">static</span> <span class="keywordtype">double</span> <a class="code" href="classKGrid2D_1_1HexagonalBase.html#e52b5c82bfa275ac295cac0b1881a361">angle</a>(<a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e" title="Identify the six neighbours.">Neighbour</a> n) {
<a name="l00385"></a>00385         <span class="keywordflow">switch</span> (n) {
<a name="l00386"></a>00386         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> M_PI;
<a name="l00387"></a>00387         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> 0;
<a name="l00388"></a>00388         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> 2.0*M_PI/3;
<a name="l00389"></a>00389         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> -2.0*M_PI/3;
<a name="l00390"></a>00390         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> M_PI/3;
<a name="l00391"></a>00391         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> -M_PI/3;
<a name="l00392"></a>00392         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00393"></a>00393         }
<a name="l00394"></a>00394         <span class="keywordflow">return</span> 0;
<a name="l00395"></a>00395     }
<a name="l00396"></a>00396 
<a name="l00400"></a><a class="code" href="classKGrid2D_1_1HexagonalBase.html#6531581fc837fe41c793c12bcb893cd4">00400</a>     <span class="keyword">static</span> <a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e" title="Identify the six neighbours.">Neighbour</a> <a class="code" href="classKGrid2D_1_1HexagonalBase.html#6531581fc837fe41c793c12bcb893cd4">opposed</a>(<a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e" title="Identify the six neighbours.">Neighbour</a> n) {
<a name="l00401"></a>00401         <span class="keywordflow">switch</span> (n) {
<a name="l00402"></a>00402         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> Right;
<a name="l00403"></a>00403         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> Left;
<a name="l00404"></a>00404         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> RightDown;
<a name="l00405"></a>00405         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> RightUp;
<a name="l00406"></a>00406         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> LeftDown;
<a name="l00407"></a>00407         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> LeftUp;
<a name="l00408"></a>00408         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00409"></a>00409         }
<a name="l00410"></a>00410         <span class="keywordflow">return</span> Nb_Neighbour;
<a name="l00411"></a>00411     }
<a name="l00412"></a>00412 
<a name="l00416"></a><a class="code" href="classKGrid2D_1_1HexagonalBase.html#fdca49af0925ded646a7330a4568ded8">00416</a>     <span class="keyword">static</span> Coord <a class="code" href="classKGrid2D_1_1HexagonalBase.html#fdca49af0925ded646a7330a4568ded8">neighbour</a>(<span class="keyword">const</span> Coord &amp;c, <a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e" title="Identify the six neighbours.">Neighbour</a> n) {
<a name="l00417"></a>00417         <span class="keywordtype">bool</span> oddRow = c.second%2;
<a name="l00418"></a>00418         <span class="keywordflow">switch</span> (n) {
<a name="l00419"></a>00419         <span class="keywordflow">case</span> Left:      <span class="keywordflow">return</span> c + Coord(-1,  0);
<a name="l00420"></a>00420         <span class="keywordflow">case</span> Right:     <span class="keywordflow">return</span> c + Coord( 1,  0);
<a name="l00421"></a>00421         <span class="keywordflow">case</span> LeftUp:    <span class="keywordflow">return</span> c + (oddRow ? Coord( 0, -1) : Coord(-1, -1));
<a name="l00422"></a>00422         <span class="keywordflow">case</span> LeftDown:  <span class="keywordflow">return</span> c + (oddRow ? Coord( 0,  1) : Coord(-1,  1));
<a name="l00423"></a>00423         <span class="keywordflow">case</span> RightUp:   <span class="keywordflow">return</span> c + (oddRow ? Coord( 1, -1) : Coord( 0, -1));
<a name="l00424"></a>00424         <span class="keywordflow">case</span> RightDown: <span class="keywordflow">return</span> c + (oddRow ? Coord( 1,  1) : Coord( 0,  1));
<a name="l00425"></a>00425         <span class="keywordflow">case</span> Nb_Neighbour: Q_ASSERT(<span class="keyword">false</span>);
<a name="l00426"></a>00426         }
<a name="l00427"></a>00427         <span class="keywordflow">return</span> c;
<a name="l00428"></a>00428     }
<a name="l00429"></a>00429 
<a name="l00433"></a><a class="code" href="classKGrid2D_1_1HexagonalBase.html#f669fbc08df5d0193fa171b7553d84a0">00433</a>     <span class="keyword">static</span> uint <a class="code" href="classKGrid2D_1_1HexagonalBase.html#f669fbc08df5d0193fa171b7553d84a0">distance</a>(<span class="keyword">const</span> Coord &amp;c1, <span class="keyword">const</span> Coord &amp;c2) {
<a name="l00434"></a>00434         <span class="keywordflow">return</span> kAbs(c1.first - c2.first) + kAbs(c1.second - c2.second)
<a name="l00435"></a>00435             + (c1.first==c2.first || c1.second==c2.second ? 0 : -1);
<a name="l00436"></a>00436     }
<a name="l00437"></a>00437 };
<a name="l00438"></a>00438 
<a name="l00450"></a>00450 <span class="keyword">template</span> &lt;<span class="keyword">class</span> Type&gt;
<a name="l00451"></a><a class="code" href="classKGrid2D_1_1Hexagonal.html">00451</a> <span class="keyword">class </span><a class="code" href="classKGrid2D_1_1Hexagonal.html" title="This template implements a hexagonal grid where hexagons form horizontal lines:.">Hexagonal</a> : <span class="keyword">public</span> <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic</a>&lt;Type&gt;, <span class="keyword">public</span> <a class="code" href="classKGrid2D_1_1HexagonalBase.html" title="This class contains static methods to manipulate coordinates on an hexagonal grid...">HexagonalBase</a>
<a name="l00452"></a>00452 {
<a name="l00453"></a>00453  <span class="keyword">public</span>:
<a name="l00457"></a><a class="code" href="classKGrid2D_1_1Hexagonal.html#a1924116eaf2b5cb9a45aefb64a042ab">00457</a>     <a class="code" href="classKGrid2D_1_1Hexagonal.html#a1924116eaf2b5cb9a45aefb64a042ab" title="Constructor.">Hexagonal</a>(uint <a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a> = 0, uint <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a> = 0)
<a name="l00458"></a>00458         : <a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic</a>&lt;Type&gt;(<a class="code" href="classKGrid2D_1_1Generic.html#2e3b9af3bb6b9eccb27e6dfdfb684fab">width</a>, <a class="code" href="classKGrid2D_1_1Generic.html#d74fd412d31702b267149789c582a404">height</a>) {}
<a name="l00459"></a>00459 
<a name="l00466"></a><a class="code" href="classKGrid2D_1_1Hexagonal.html#d044accb113b4461cdc078609b2ab172">00466</a>     CoordList <a class="code" href="classKGrid2D_1_1Hexagonal.html#d044accb113b4461cdc078609b2ab172">neighbours</a>(<span class="keyword">const</span> Coord &amp;c, <span class="keywordtype">bool</span> insideOnly = <span class="keyword">true</span>)<span class="keyword"> const </span>{
<a name="l00467"></a>00467         CoordList <a class="code" href="classKGrid2D_1_1Hexagonal.html#d044accb113b4461cdc078609b2ab172">neighbours</a>;
<a name="l00468"></a>00468         <span class="keywordflow">for</span> (uint i=0; i&lt;Nb_Neighbour; i++) {
<a name="l00469"></a>00469             Coord n = <a class="code" href="classKGrid2D_1_1HexagonalBase.html#fdca49af0925ded646a7330a4568ded8">neighbour</a>(c, (<a class="code" href="classKGrid2D_1_1HexagonalBase.html#c3cc353852a94a13564be70c1b0f9f1e" title="Identify the six neighbours.">Neighbour</a>)i);
<a name="l00470"></a>00470             <span class="keywordflow">if</span> ( insideOnly &amp;&amp; !<a class="code" href="classKGrid2D_1_1Generic.html" title="This template class represents a generic bidimensionnal grid.">Generic&lt;Type&gt;::inside</a>(n) ) <span class="keywordflow">continue</span>;
<a name="l00471"></a>00471             neighbours.append(n);
<a name="l00472"></a>00472         }
<a name="l00473"></a>00473         <span class="keywordflow">return</span> neighbours;
<a name="l00474"></a>00474     }
<a name="l00475"></a>00475 
<a name="l00476"></a>00476 
<a name="l00485"></a><a class="code" href="classKGrid2D_1_1Hexagonal.html#0c3ff390240ddc844608b959581645c7">00485</a>     CoordList <a class="code" href="classKGrid2D_1_1Hexagonal.html#d044accb113b4461cdc078609b2ab172">neighbours</a>(<span class="keyword">const</span> Coord &amp;c, uint <a class="code" href="classKGrid2D_1_1HexagonalBase.html#f669fbc08df5d0193fa171b7553d84a0">distance</a>, <span class="keywordtype">bool</span> all,
<a name="l00486"></a>00486                         <span class="keywordtype">bool</span> insideOnly = <span class="keyword">true</span>)<span class="keyword"> const </span>{
<a name="l00487"></a>00487         <span class="comment">// brute force algorithm -- you're welcome to make it more efficient :)</span>
<a name="l00488"></a>00488         CoordList ring;
<a name="l00489"></a>00489         <span class="keywordflow">if</span> ( distance==0 ) <span class="keywordflow">return</span> ring;
<a name="l00490"></a>00490         ring = <a class="code" href="classKGrid2D_1_1Hexagonal.html#d044accb113b4461cdc078609b2ab172">neighbours</a>(c, insideOnly);
<a name="l00491"></a>00491         <span class="keywordflow">if</span> ( distance==1 ) <span class="keywordflow">return</span> ring;
<a name="l00492"></a>00492         CoordList center;
<a name="l00493"></a>00493         center.append(c);
<a name="l00494"></a>00494         <span class="keywordflow">for</span> (uint i=1; i&lt;distance; i++) {
<a name="l00495"></a>00495             CoordList newRing;
<a name="l00496"></a>00496             CoordList::const_iterator it;
<a name="l00497"></a>00497             <span class="keywordflow">for</span> (it=ring.begin(); it!=ring.end(); ++it) {
<a name="l00498"></a>00498                 CoordList n = <a class="code" href="classKGrid2D_1_1Hexagonal.html#d044accb113b4461cdc078609b2ab172">neighbours</a>(*it, insideOnly);
<a name="l00499"></a>00499                 CoordList::const_iterator it2;
<a name="l00500"></a>00500                 <span class="keywordflow">for</span> (it2=n.begin(); it2!=n.end(); ++it2)
<a name="l00501"></a>00501                     <span class="keywordflow">if</span> ( center.find(*it2)==center.end()
<a name="l00502"></a>00502                          &amp;&amp; ring.find(*it2)==ring.end()
<a name="l00503"></a>00503                          &amp;&amp; newRing.find(*it2)==newRing.end() )
<a name="l00504"></a>00504                         newRing.append(*it2);
<a name="l00505"></a>00505                 center.append(*it);
<a name="l00506"></a>00506             }
<a name="l00507"></a>00507             ring = newRing;
<a name="l00508"></a>00508         }
<a name="l00509"></a>00509         <span class="keywordflow">if</span> ( !all ) <span class="keywordflow">return</span> ring;
<a name="l00510"></a>00510         CoordList::const_iterator it;
<a name="l00511"></a>00511         <span class="keywordflow">for</span> (it=ring.begin(); it!=ring.end(); ++it)
<a name="l00512"></a>00512             center.append(*it);
<a name="l00513"></a>00513         center.remove(c);
<a name="l00514"></a>00514         <span class="keywordflow">return</span> center;
<a name="l00515"></a>00515     }
<a name="l00516"></a>00516 };
<a name="l00517"></a>00517 
<a name="l00518"></a>00518 } <span class="comment">// namespace</span>
<a name="l00519"></a>00519 
<a name="l00520"></a>00520 <span class="preprocessor">#endif</span>
</pre></div></div>
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