Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_c_life_engine_8h_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/Graphics/WS/Direct/CLifeEngine.h</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="preprocessor">#if !defined(__CLIFEENGINE_H__)</span>
<a name="l00017"></a>00017 <span class="preprocessor"></span><span class="preprocessor">#define __CLIFEENGINE_H__</span>
<a name="l00018"></a>00018 <span class="preprocessor"></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <e32base.h></span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 <span class="comment">// Cell array dimensions</span>
<a name="l00022"></a>00022 <span class="keyword">const</span> TInt DIM_X_ARRAY = 16;
<a name="l00023"></a>00023 <span class="keyword">const</span> TInt DIM_Y_ARRAY = 8;
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="comment">// Cell array type</span>
<a name="l00026"></a>00026 <span class="keyword">typedef</span> TBool TCellArray[DIM_X_ARRAY][DIM_Y_ARRAY];
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="comment">// A "Game of Life" engine</span>
<a name="l00029"></a>00029 <span class="comment">// After John Conway, Scientific American 223 (October 1970): 120-123</span>
<a name="l00030"></a>00030 <span class="keyword">class </span>CLifeEngine: <span class="keyword">public</span> CBase
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="keyword">public</span>:
<a name="l00033"></a>00033 <span class="comment">// Initalise engine with random seed</span>
<a name="l00034"></a>00034 CLifeEngine(<span class="keyword">const</span> TInt64& aSeed);
<a name="l00035"></a>00035 <span class="comment">// Moves forward one generation</span>
<a name="l00036"></a>00036 <span class="keywordtype">void</span> AddGeneration();
<a name="l00037"></a>00037 <span class="comment">// Gets cell array</span>
<a name="l00038"></a>00038 <span class="keyword">const</span> TCellArray& GetCellArray()<span class="keyword"> const</span>
<a name="l00039"></a>00039 <span class="keyword"> </span>{<span class="keywordflow">return</span> iCellArray;}
<a name="l00040"></a>00040 <span class="comment">// Resets all cells to random state</span>
<a name="l00041"></a>00041 <span class="keywordtype">void</span> Reset();
<a name="l00042"></a>00042
<a name="l00043"></a>00043 <span class="keyword">private</span>:
<a name="l00044"></a>00044 <span class="comment">// Gets number of neighbors for cell x,y</span>
<a name="l00045"></a>00045 TInt NumNeighbors(TInt x, TInt y);
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keyword">private</span>:
<a name="l00048"></a>00048 <span class="comment">// Random num generator seed</span>
<a name="l00049"></a>00049 TInt64 iSeed;
<a name="l00050"></a>00050 <span class="comment">// Cell array</span>
<a name="l00051"></a>00051 TCellArray iCellArray;
<a name="l00052"></a>00052 <span class="comment">// Temporary working cell array</span>
<a name="l00053"></a>00053 TCellArray iTempCellArray;
<a name="l00054"></a>00054 };
<a name="l00055"></a>00055
<a name="l00056"></a>00056
<a name="l00057"></a>00057 <span class="preprocessor">#endif</span>
</pre></div></div>
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