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<h1 class="title">minehunt.cpp Example File</h1>
<span class="small-subtitle">demos/declarative/minehunt/minehunt.cpp</span>
<!-- $$$demos/declarative/minehunt/minehunt.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** As a special exception, The Qt Company gives you certain additional
** rights. These rights are described in The Qt Company LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include &lt;stdlib.h&gt;</span>
<span class="preprocessor">#include &lt;QTime&gt;</span>
<span class="preprocessor">#include &lt;QTimer&gt;</span>
<span class="preprocessor">#include &quot;minehunt.h&quot;</span>
<span class="type">void</span> tilesPropAppend(<span class="type"><a href="qdeclarativelistproperty.html">QDeclarativeListProperty</a></span><span class="operator">&lt;</span>TileData<span class="operator">&gt;</span><span class="operator">*</span> prop<span class="operator">,</span> TileData<span class="operator">*</span> value)
{
Q_UNUSED(prop);
Q_UNUSED(value);
<span class="keyword">return</span>; <span class="comment">//Append not supported</span>
}
<span class="type">int</span> tilesPropCount(<span class="type"><a href="qdeclarativelistproperty.html">QDeclarativeListProperty</a></span><span class="operator">&lt;</span>TileData<span class="operator">&gt;</span><span class="operator">*</span> prop)
{
<span class="keyword">return</span> <span class="keyword">static_cast</span><span class="operator">&lt;</span><span class="type"><a href="qlist.html">QList</a></span><span class="operator">&lt;</span>TileData<span class="operator">*</span><span class="operator">&gt;</span><span class="operator">*</span><span class="operator">&gt;</span>(prop<span class="operator">-</span><span class="operator">&gt;</span>data)<span class="operator">-</span><span class="operator">&gt;</span>count();
}
TileData<span class="operator">*</span> tilesPropAt(<span class="type"><a href="qdeclarativelistproperty.html">QDeclarativeListProperty</a></span><span class="operator">&lt;</span>TileData<span class="operator">&gt;</span><span class="operator">*</span> prop<span class="operator">,</span> <span class="type">int</span> index)
{
<span class="keyword">return</span> <span class="keyword">static_cast</span><span class="operator">&lt;</span><span class="type"><a href="qlist.html">QList</a></span><span class="operator">&lt;</span>TileData<span class="operator">*</span><span class="operator">&gt;</span><span class="operator">*</span><span class="operator">&gt;</span>(prop<span class="operator">-</span><span class="operator">&gt;</span>data)<span class="operator">-</span><span class="operator">&gt;</span>at(index);
}
<span class="type"><a href="qdeclarativelistproperty.html">QDeclarativeListProperty</a></span><span class="operator">&lt;</span>TileData<span class="operator">&gt;</span> MinehuntGame<span class="operator">::</span>tiles(){
<span class="keyword">return</span> <span class="type"><a href="qdeclarativelistproperty.html">QDeclarativeListProperty</a></span><span class="operator">&lt;</span>TileData<span class="operator">&gt;</span>(<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&amp;</span>_tiles<span class="operator">,</span> <span class="operator">&amp;</span>tilesPropAppend<span class="operator">,</span>
<span class="operator">&amp;</span>tilesPropCount<span class="operator">,</span> <span class="operator">&amp;</span>tilesPropAt<span class="operator">,</span> <span class="number">0</span>);
}
MinehuntGame<span class="operator">::</span>MinehuntGame()
: numCols(<span class="number">9</span>)<span class="operator">,</span> numRows(<span class="number">9</span>)<span class="operator">,</span> playing(<span class="keyword">true</span>)<span class="operator">,</span> won(<span class="keyword">false</span>)
{
setObjectName(<span class="string">&quot;mainObject&quot;</span>);
srand(<span class="type"><a href="qtime.html">QTime</a></span>(<span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span>)<span class="operator">.</span>secsTo(<span class="type"><a href="qtime.html">QTime</a></span><span class="operator">::</span>currentTime()));
<span class="comment">//initialize array</span>
<span class="keyword">for</span>(<span class="type">int</span> ii <span class="operator">=</span> <span class="number">0</span>; ii <span class="operator">&lt;</span> numRows <span class="operator">*</span> numCols; <span class="operator">+</span><span class="operator">+</span>ii) {
_tiles <span class="operator">&lt;</span><span class="operator">&lt;</span> <span class="keyword">new</span> TileData;
}
reset();
}
<span class="type">void</span> MinehuntGame<span class="operator">::</span>setBoard()
{
foreach(TileData<span class="operator">*</span> t<span class="operator">,</span> _tiles){
t<span class="operator">-</span><span class="operator">&gt;</span>setHasMine(<span class="keyword">false</span>);
t<span class="operator">-</span><span class="operator">&gt;</span>setHint(<span class="operator">-</span><span class="number">1</span>);
}
<span class="comment">//place mines</span>
<span class="type">int</span> mines <span class="operator">=</span> nMines;
remaining <span class="operator">=</span> numRows<span class="operator">*</span>numCols<span class="operator">-</span>mines;
<span class="keyword">while</span> ( mines ) {
<span class="type">int</span> col <span class="operator">=</span> <span class="type">int</span>((<span class="type">double</span>(rand()) <span class="operator">/</span> <span class="type">double</span>(RAND_MAX)) <span class="operator">*</span> numCols);
<span class="type">int</span> row <span class="operator">=</span> <span class="type">int</span>((<span class="type">double</span>(rand()) <span class="operator">/</span> <span class="type">double</span>(RAND_MAX)) <span class="operator">*</span> numRows);
TileData<span class="operator">*</span> t <span class="operator">=</span> tile( row<span class="operator">,</span> col );
<span class="keyword">if</span> (t <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>t<span class="operator">-</span><span class="operator">&gt;</span>hasMine()) {
t<span class="operator">-</span><span class="operator">&gt;</span>setHasMine( <span class="keyword">true</span> );
mines<span class="operator">-</span><span class="operator">-</span>;
}
}
<span class="comment">//set hints</span>
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> <span class="number">0</span>; r <span class="operator">&lt;</span> numRows; r<span class="operator">+</span><span class="operator">+</span>)
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> <span class="number">0</span>; c <span class="operator">&lt;</span> numCols; c<span class="operator">+</span><span class="operator">+</span>) {
TileData<span class="operator">*</span> t <span class="operator">=</span> tile(r<span class="operator">,</span> c);
<span class="keyword">if</span> (t <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>t<span class="operator">-</span><span class="operator">&gt;</span>hasMine()) {
<span class="type">int</span> hint <span class="operator">=</span> getHint(r<span class="operator">,</span>c);
t<span class="operator">-</span><span class="operator">&gt;</span>setHint(hint);
}
}
setPlaying(<span class="keyword">true</span>);
}
<span class="type">void</span> MinehuntGame<span class="operator">::</span><a href="qtextstream.html#reset">reset</a>()
{
foreach(TileData<span class="operator">*</span> t<span class="operator">,</span> _tiles){
t<span class="operator">-</span><span class="operator">&gt;</span>unflip();
t<span class="operator">-</span><span class="operator">&gt;</span>setHasFlag(<span class="keyword">false</span>);
}
nMines <span class="operator">=</span> <span class="number">12</span>;
nFlags <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">emit</span> numMinesChanged();
<span class="keyword">emit</span> numFlagsChanged();
setPlaying(<span class="keyword">false</span>);
<span class="type"><a href="qtimer.html">QTimer</a></span><span class="operator">::</span>singleShot(<span class="number">600</span><span class="operator">,</span><span class="keyword">this</span><span class="operator">,</span> SLOT(setBoard()));
}
<span class="type">int</span> MinehuntGame<span class="operator">::</span>getHint(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> col)
{
<span class="type">int</span> hint <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> col<span class="operator">-</span><span class="number">1</span>; c <span class="operator">&lt;</span><span class="operator">=</span> col<span class="operator">+</span><span class="number">1</span>; c<span class="operator">+</span><span class="operator">+</span>)
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> row<span class="operator">-</span><span class="number">1</span>; r <span class="operator">&lt;</span><span class="operator">=</span> row<span class="operator">+</span><span class="number">1</span>; r<span class="operator">+</span><span class="operator">+</span>) {
TileData<span class="operator">*</span> t <span class="operator">=</span> tile(r<span class="operator">,</span> c);
<span class="keyword">if</span> (t <span class="operator">&amp;</span><span class="operator">&amp;</span> t<span class="operator">-</span><span class="operator">&gt;</span>hasMine())
hint<span class="operator">+</span><span class="operator">+</span>;
}
<span class="keyword">return</span> hint;
}
<span class="type">bool</span> MinehuntGame<span class="operator">::</span>flip(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> col)
{
<span class="keyword">if</span>(<span class="operator">!</span>playing)
<span class="keyword">return</span> <span class="keyword">false</span>;
TileData <span class="operator">*</span>t <span class="operator">=</span> tile(row<span class="operator">,</span> col);
<span class="keyword">if</span> (<span class="operator">!</span>t <span class="operator">|</span><span class="operator">|</span> t<span class="operator">-</span><span class="operator">&gt;</span>hasFlag())
<span class="keyword">return</span> <span class="keyword">false</span>;
<span class="keyword">if</span>(t<span class="operator">-</span><span class="operator">&gt;</span>flipped()){
<span class="type">int</span> flags <span class="operator">=</span> <span class="number">0</span>;
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> col<span class="operator">-</span><span class="number">1</span>; c <span class="operator">&lt;</span><span class="operator">=</span> col<span class="operator">+</span><span class="number">1</span>; c<span class="operator">+</span><span class="operator">+</span>)
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> row<span class="operator">-</span><span class="number">1</span>; r <span class="operator">&lt;</span><span class="operator">=</span> row<span class="operator">+</span><span class="number">1</span>; r<span class="operator">+</span><span class="operator">+</span>) {
TileData <span class="operator">*</span>nearT <span class="operator">=</span> tile(r<span class="operator">,</span> c);
<span class="keyword">if</span>(<span class="operator">!</span>nearT <span class="operator">|</span><span class="operator">|</span> nearT <span class="operator">=</span><span class="operator">=</span> t)
<span class="keyword">continue</span>;
<span class="keyword">if</span>(nearT<span class="operator">-</span><span class="operator">&gt;</span>hasFlag())
flags<span class="operator">+</span><span class="operator">+</span>;
}
<span class="keyword">if</span>(<span class="operator">!</span>t<span class="operator">-</span><span class="operator">&gt;</span>hint() <span class="operator">|</span><span class="operator">|</span> t<span class="operator">-</span><span class="operator">&gt;</span>hint() <span class="operator">!</span><span class="operator">=</span> flags)
<span class="keyword">return</span> <span class="keyword">false</span>;
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> col<span class="operator">-</span><span class="number">1</span>; c <span class="operator">&lt;</span><span class="operator">=</span> col<span class="operator">+</span><span class="number">1</span>; c<span class="operator">+</span><span class="operator">+</span>)
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> row<span class="operator">-</span><span class="number">1</span>; r <span class="operator">&lt;</span><span class="operator">=</span> row<span class="operator">+</span><span class="number">1</span>; r<span class="operator">+</span><span class="operator">+</span>) {
TileData <span class="operator">*</span>nearT <span class="operator">=</span> tile(r<span class="operator">,</span> c);
<span class="keyword">if</span> (nearT <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>nearT<span class="operator">-</span><span class="operator">&gt;</span>flipped() <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>nearT<span class="operator">-</span><span class="operator">&gt;</span>hasFlag()) {
flip( r<span class="operator">,</span> c );
}
}
<span class="keyword">return</span> <span class="keyword">true</span>;
}
t<span class="operator">-</span><span class="operator">&gt;</span>flip();
<span class="keyword">if</span> (t<span class="operator">-</span><span class="operator">&gt;</span>hint() <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>) {
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> col<span class="operator">-</span><span class="number">1</span>; c <span class="operator">&lt;</span><span class="operator">=</span> col<span class="operator">+</span><span class="number">1</span>; c<span class="operator">+</span><span class="operator">+</span>)
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> row<span class="operator">-</span><span class="number">1</span>; r <span class="operator">&lt;</span><span class="operator">=</span> row<span class="operator">+</span><span class="number">1</span>; r<span class="operator">+</span><span class="operator">+</span>) {
TileData<span class="operator">*</span> t <span class="operator">=</span> tile(r<span class="operator">,</span> c);
<span class="keyword">if</span> (t <span class="operator">&amp;</span><span class="operator">&amp;</span> <span class="operator">!</span>t<span class="operator">-</span><span class="operator">&gt;</span>flipped()) {
flip( r<span class="operator">,</span> c );
}
}
}
<span class="keyword">if</span>(t<span class="operator">-</span><span class="operator">&gt;</span>hasMine()){
<span class="keyword">for</span> (<span class="type">int</span> r <span class="operator">=</span> <span class="number">0</span>; r <span class="operator">&lt;</span> numRows; r<span class="operator">+</span><span class="operator">+</span>)<span class="comment">//Flip all other mines</span>
<span class="keyword">for</span> (<span class="type">int</span> c <span class="operator">=</span> <span class="number">0</span>; c <span class="operator">&lt;</span> numCols; c<span class="operator">+</span><span class="operator">+</span>) {
TileData<span class="operator">*</span> t <span class="operator">=</span> tile(r<span class="operator">,</span> c);
<span class="keyword">if</span> (t <span class="operator">&amp;</span><span class="operator">&amp;</span> t<span class="operator">-</span><span class="operator">&gt;</span>hasMine()) {
flip(r<span class="operator">,</span> c);
}
}
won <span class="operator">=</span> <span class="keyword">false</span>;
hasWonChanged();
setPlaying(<span class="keyword">false</span>);
<span class="keyword">return</span> <span class="keyword">true</span>;
}
remaining<span class="operator">-</span><span class="operator">-</span>;
<span class="keyword">if</span>(<span class="operator">!</span>remaining){
won <span class="operator">=</span> <span class="keyword">true</span>;
hasWonChanged();
setPlaying(<span class="keyword">false</span>);
<span class="keyword">return</span> <span class="keyword">true</span>;
}
<span class="keyword">return</span> <span class="keyword">true</span>;
}
<span class="type">bool</span> MinehuntGame<span class="operator">::</span>flag(<span class="type">int</span> row<span class="operator">,</span> <span class="type">int</span> col)
{
TileData <span class="operator">*</span>t <span class="operator">=</span> tile(row<span class="operator">,</span> col);
<span class="keyword">if</span>(<span class="operator">!</span>t <span class="operator">|</span><span class="operator">|</span> <span class="operator">!</span>playing <span class="operator">|</span><span class="operator">|</span> t<span class="operator">-</span><span class="operator">&gt;</span>flipped())
<span class="keyword">return</span> <span class="keyword">false</span>;
t<span class="operator">-</span><span class="operator">&gt;</span>setHasFlag(<span class="operator">!</span>t<span class="operator">-</span><span class="operator">&gt;</span>hasFlag());
nFlags <span class="operator">+</span><span class="operator">=</span> (t<span class="operator">-</span><span class="operator">&gt;</span>hasFlag()<span class="operator">?</span><span class="number">1</span>:<span class="operator">-</span><span class="number">1</span>);
<span class="keyword">emit</span> numFlagsChanged();
<span class="keyword">return</span> <span class="keyword">true</span>;
}</pre>
</div>
<!-- @@@demos/declarative/minehunt/minehunt.cpp -->
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