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<h1 class="title">snake.qml Example File</h1>
<span class="small-subtitle">demos/declarative/snake/qml/snake/snake.qml</span>
<!-- $$$demos/declarative/snake/qml/snake/snake.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml"> <span class="comment">/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtDeclarative module 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/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 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt 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>
import QtQuick 1.0
import "content" as Content
import "content/snake.js" as Logic
<span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">id</span>: <span class="name">screen</span>;
<span class="type"><a href="qml-systempalette.html">SystemPalette</a></span> { <span class="name">id</span>: <span class="name">activePalette</span> }
<span class="name">color</span>: <span class="name">activePalette</span>.<span class="name">window</span>
property <span class="type">bool</span> <span class="name">activeGame</span>: <span class="number">false</span>
property <span class="type">int</span> <span class="name">gridSize</span> : <span class="number">34</span>
property <span class="type">int</span> <span class="name">margin</span>: <span class="number">4</span>
property <span class="type">int</span> <span class="name">numRowsAvailable</span>: <span class="name">Math</span>.<span class="name">floor</span>((<span class="name">height</span><span class="operator">-</span><span class="number">32</span><span class="operator">-</span><span class="number">2</span><span class="operator">*</span><span class="name">margin</span>)<span class="operator">/</span><span class="name">gridSize</span>)
property <span class="type">int</span> <span class="name">numColumnsAvailable</span>: <span class="name">Math</span>.<span class="name">floor</span>((<span class="name">width</span><span class="operator">-</span><span class="number">2</span><span class="operator">*</span><span class="name">margin</span>)<span class="operator">/</span><span class="name">gridSize</span>)
property <span class="type">int</span> <span class="name">lastScore</span> : <span class="number">0</span>
property <span class="type">int</span> <span class="name">score</span>: <span class="number">0</span>;
property <span class="type">int</span> <span class="name">heartbeatInterval</span>: <span class="number">200</span>
property <span class="type">int</span> <span class="name">halfbeatInterval</span>: <span class="number">160</span>
<span class="name">width</span>: <span class="number">480</span>
<span class="name">height</span>: <span class="number">750</span>
property <span class="type">int</span> <span class="name">direction</span>
property <span class="type">int</span> <span class="name">headDirection</span>
property <span class="type">variant</span> <span class="name">head</span>;
<span class="type">Content</span>.HighScoreModel {
<span class="name">id</span>: <span class="name">highScores</span>
<span class="name">game</span>: <span class="string">"Snake"</span>
}
<span class="type"><a href="qml-timer.html">Timer</a></span> {
<span class="name">id</span>: <span class="name">heartbeat</span>;
<span class="name">interval</span>: <span class="name">heartbeatInterval</span>;
<span class="name">running</span>: <span class="name">activeGame</span> <span class="operator">&&</span> <span class="name">runtime</span>.<span class="name">isActiveWindow</span>
<span class="name">repeat</span>: <span class="number">true</span>
<span class="name">onTriggered</span>: { <span class="name">Logic</span>.<span class="name">move</span>() }
}
<span class="type"><a href="qml-timer.html">Timer</a></span> {
<span class="name">id</span>: <span class="name">halfbeat</span>;
<span class="name">interval</span>: <span class="name">halfbeatInterval</span>;
<span class="name">repeat</span>: <span class="number">true</span>
<span class="name">running</span>: <span class="name">heartbeat</span>.<span class="name">running</span>
<span class="name">onTriggered</span>: { <span class="name">Logic</span>.<span class="name">moveSkull</span>() }
}
<span class="type"><a href="qml-timer.html">Timer</a></span> {
<span class="name">id</span>: <span class="name">startNewGameTimer</span>;
<span class="name">interval</span>: <span class="number">700</span>;
<span class="name">onTriggered</span>: { <span class="name">Logic</span>.<span class="name">startNewGame</span>(); }
}
<span class="type"><a href="qml-timer.html">Timer</a></span> {
<span class="name">id</span>: <span class="name">startHeartbeatTimer</span>;
<span class="name">interval</span>: <span class="number">1000</span> ;
<span class="name">onTriggered</span>: { <span class="name">state</span> <span class="operator">=</span> <span class="string">"running"</span>; <span class="name">activeGame</span> <span class="operator">=</span> <span class="number">true</span>; }
}
<span class="type"><a href="qml-image.html">Image</a></span>{
<span class="name">id</span>: <span class="name">pauseDialog</span>
<span class="name">z</span>: <span class="number">1</span>
<span class="name">source</span>: <span class="string">"content/pics/pause.png"</span>
<span class="name">anchors</span>.centerIn: <span class="name">parent</span>;
<span class="comment">//opacity is deliberately not animated</span>
<span class="name">opacity</span>: <span class="name">activeGame</span> <span class="operator">&&</span> !<span class="name">Qt</span>.<span class="name">application</span>.<span class="name">active</span>
}
<span class="type"><a href="qml-image.html">Image</a></span> {
<span class="type"><a href="qml-image.html">Image</a></span> {
<span class="name">id</span>: <span class="name">title</span>
<span class="name">source</span>: <span class="string">"content/pics/snake.jpg"</span>
<span class="name">fillMode</span>: <span class="name">Image</span>.<span class="name">PreserveAspectCrop</span>
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">anchors</span>.horizontalCenter: <span class="name">parent</span>.<span class="name">horizontalCenter</span>
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="type"><a href="qml-column.html">Column</a></span> {
<span class="name">spacing</span>: <span class="number">140</span>
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>;
<span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>;
<span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>;
<span class="type"><a href="qml-text.html">Text</a></span> {
<span class="name">color</span>: <span class="string">"white"</span>
<span class="name">font</span>.pointSize: <span class="number">48</span>
<span class="name">font</span>.italic: <span class="number">true</span>;
<span class="name">font</span>.bold: <span class="number">true</span>;
<span class="name">text</span>: <span class="string">"Snake"</span>
<span class="name">anchors</span>.horizontalCenter: <span class="name">parent</span>.<span class="name">horizontalCenter</span>;
}
<span class="type"><a href="qml-text.html">Text</a></span> {
<span class="name">color</span>: <span class="string">"white"</span>
<span class="name">font</span>.pointSize: <span class="number">24</span>
<span class="name">anchors</span>.horizontalCenter: <span class="name">parent</span>.<span class="name">horizontalCenter</span>;
<span class="comment">//horizontalAlignment: Text.AlignHCenter</span>
<span class="name">text</span>: <span class="string">"Last Score:\t"</span> <span class="operator">+</span> <span class="name">lastScore</span> <span class="operator">+</span> <span class="string">"\nHighscore:\t"</span> <span class="operator">+</span> <span class="name">highScores</span>.<span class="name">topScore</span>;
}
}
}
<span class="name">source</span>: <span class="string">"content/pics/background.png"</span>
<span class="name">fillMode</span>: <span class="name">Image</span>.<span class="name">PreserveAspectCrop</span>
<span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>
<span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>
<span class="name">anchors</span>.top: <span class="name">parent</span>.<span class="name">top</span>
<span class="name">anchors</span>.bottom: <span class="name">toolbar</span>.<span class="name">top</span>
<span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">id</span>: <span class="name">playfield</span>
<span class="name">border</span>.width: <span class="number">1</span>
<span class="name">border</span>.color: <span class="string">"white"</span>
<span class="name">color</span>: <span class="string">"transparent"</span>
<span class="name">anchors</span>.horizontalCenter: <span class="name">parent</span>.<span class="name">horizontalCenter</span>
<span class="name">y</span>: (<span class="name">screen</span>.<span class="name">height</span> <span class="operator">-</span> <span class="number">32</span> <span class="operator">-</span> <span class="name">height</span>)<span class="operator">/</span><span class="number">2</span>;
<span class="name">width</span>: <span class="name">numColumnsAvailable</span> <span class="operator">*</span> <span class="name">gridSize</span> <span class="operator">+</span> <span class="number">2</span><span class="operator">*</span><span class="name">margin</span>
<span class="name">height</span>: <span class="name">numRowsAvailable</span> <span class="operator">*</span> <span class="name">gridSize</span> <span class="operator">+</span> <span class="number">2</span><span class="operator">*</span><span class="name">margin</span>
<span class="type">Content</span>.Skull {
<span class="name">id</span>: <span class="name">skull</span>
}
<span class="type"><a href="qml-mousearea.html">MouseArea</a></span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">onPressed</span>: {
<span class="keyword">if</span> (<span class="name">screen</span>.<span class="name">state</span> <span class="operator">==</span> <span class="string">""</span>) {
<span class="name">Logic</span>.<span class="name">startNewGame</span>();
<span class="keyword">return</span>;
}
<span class="keyword">if</span> (<span class="name">direction</span> <span class="operator">==</span> <span class="number">0</span> <span class="operator">||</span> <span class="name">direction</span> <span class="operator">==</span> <span class="number">2</span>)
<span class="name">Logic</span>.<span class="name">scheduleDirection</span>((<span class="name">mouseX</span> <span class="operator">></span> (<span class="name">head</span>.<span class="name">x</span> <span class="operator">+</span> <span class="name">head</span>.<span class="name">width</span><span class="operator">/</span><span class="number">2</span>)) ? <span class="number">1</span> : <span class="number">3</span>);
else
<span class="name">Logic</span>.<span class="name">scheduleDirection</span>((<span class="name">mouseY</span> <span class="operator">></span> (<span class="name">head</span>.<span class="name">y</span> <span class="operator">+</span> <span class="name">head</span>.<span class="name">height</span><span class="operator">/</span><span class="number">2</span>)) ? <span class="number">2</span> : <span class="number">0</span>);
}
}
}
}
<span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">id</span>: <span class="name">progressBar</span>
<span class="name">opacity</span>: <span class="number">0</span>
Behavior on <span class="name">opacity</span> { <span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">duration</span>: <span class="number">200</span> } }
<span class="name">color</span>: <span class="string">"transparent"</span>
<span class="name">border</span>.width: <span class="number">2</span>
<span class="name">border</span>.color: <span class="string">"#221edd"</span>
<span class="name">x</span>: <span class="number">50</span>
<span class="name">y</span>: <span class="number">50</span>
<span class="name">width</span>: <span class="number">200</span>
<span class="name">height</span>: <span class="number">30</span>
<span class="name">anchors</span>.horizontalCenter: <span class="name">parent</span>.<span class="name">horizontalCenter</span>
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
<span class="name">anchors</span>.verticalCenterOffset: <span class="number">40</span>
<span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">id</span>: <span class="name">progressIndicator</span>
<span class="name">color</span>: <span class="string">"#221edd"</span>;
<span class="name">width</span>: <span class="number">0</span>;
<span class="name">height</span>: <span class="number">30</span>;
}
}
<span class="type"><a href="qml-rectangle.html">Rectangle</a></span> {
<span class="name">id</span>: <span class="name">toolbar</span>
<span class="name">color</span>: <span class="name">activePalette</span>.<span class="name">window</span>
<span class="name">height</span>: <span class="number">32</span>; <span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
<span class="name">anchors</span>.bottom: <span class="name">screen</span>.<span class="name">bottom</span>
<span class="type">Content</span>.Button {
<span class="name">id</span>: <span class="name">btnA</span>; <span class="name">text</span>: <span class="string">"New Game"</span>; <span class="name">onClicked</span>: <span class="name">Logic</span>.<span class="name">startNewGame</span>();
<span class="name">anchors</span>.left: <span class="name">parent</span>.<span class="name">left</span>; <span class="name">anchors</span>.leftMargin: <span class="number">3</span>
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
}
<span class="type">Content</span>.Button {
<span class="name">text</span>: <span class="string">"Quit"</span>
<span class="type">anchors</span> { <span class="name">left</span>: <span class="name">btnA</span>.<span class="name">right</span>; <span class="name">leftMargin</span>: <span class="number">3</span>; <span class="name">verticalCenter</span>: <span class="name">parent</span>.<span class="name">verticalCenter</span> }
<span class="name">onClicked</span>: <span class="name">Qt</span>.<span class="name">quit</span>();
}
<span class="type"><a href="qml-text.html">Text</a></span> {
<span class="name">color</span>: <span class="name">activePalette</span>.<span class="name">text</span>
<span class="name">text</span>: <span class="string">"Score: "</span> <span class="operator">+</span> <span class="name">score</span>; <span class="name">font</span>.bold: <span class="number">true</span>
<span class="name">anchors</span>.right: <span class="name">parent</span>.<span class="name">right</span>; <span class="name">anchors</span>.rightMargin: <span class="number">3</span>
<span class="name">anchors</span>.verticalCenter: <span class="name">parent</span>.<span class="name">verticalCenter</span>
}
}
<span class="name">focus</span>: <span class="number">true</span>
<span class="name">Keys</span>.onSpacePressed: <span class="name">Logic</span>.<span class="name">startNewGame</span>();
<span class="name">Keys</span>.onLeftPressed: <span class="keyword">if</span> (<span class="name">state</span> <span class="operator">==</span> <span class="string">"starting"</span> <span class="operator">||</span> <span class="name">direction</span> <span class="operator">!=</span> <span class="number">1</span>) <span class="name">Logic</span>.<span class="name">scheduleDirection</span>(<span class="number">3</span>);
<span class="name">Keys</span>.onRightPressed: <span class="keyword">if</span> (<span class="name">state</span> <span class="operator">==</span> <span class="string">"starting"</span> <span class="operator">||</span> <span class="name">direction</span> <span class="operator">!=</span> <span class="number">3</span>) <span class="name">Logic</span>.<span class="name">scheduleDirection</span>(<span class="number">1</span>);
<span class="name">Keys</span>.onUpPressed: <span class="keyword">if</span> (<span class="name">state</span> <span class="operator">==</span> <span class="string">"starting"</span> <span class="operator">||</span> <span class="name">direction</span> <span class="operator">!=</span> <span class="number">2</span>) <span class="name">Logic</span>.<span class="name">scheduleDirection</span>(<span class="number">0</span>);
<span class="name">Keys</span>.onDownPressed: <span class="keyword">if</span> (<span class="name">state</span> <span class="operator">==</span> <span class="string">"starting"</span> <span class="operator">||</span> <span class="name">direction</span> <span class="operator">!=</span> <span class="number">0</span>) <span class="name">Logic</span>.<span class="name">scheduleDirection</span>(<span class="number">2</span>);
<span class="name">states</span>: [
<span class="type"><a href="qml-state.html">State</a></span> {
<span class="name">name</span>: <span class="string">"starting"</span>
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">progressIndicator</span>; <span class="name">width</span>: <span class="number">200</span>}
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">title</span>; <span class="name">opacity</span>: <span class="number">0</span>}
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">progressBar</span>; <span class="name">opacity</span>: <span class="number">1</span>}
},
<span class="type"><a href="qml-state.html">State</a></span> {
<span class="name">name</span>: <span class="string">"running"</span>
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">progressIndicator</span>; <span class="name">width</span>: <span class="number">200</span>}
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">title</span>; <span class="name">opacity</span>: <span class="number">0</span>}
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">skull</span>; <span class="name">row</span>: <span class="number">0</span>; <span class="name">column</span>: <span class="number">0</span>; }
<span class="type"><a href="qml-propertychanges.html">PropertyChanges</a></span> {<span class="name">target</span>: <span class="name">skull</span>; <span class="name">spawned</span>: <span class="number">1</span>}
}
]
<span class="name">transitions</span>: [
<span class="type"><a href="qml-transition.html">Transition</a></span> {
<span class="name">from</span>: <span class="string">"*"</span>
<span class="name">to</span>: <span class="string">"starting"</span>
<span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">target</span>: <span class="name">progressIndicator</span>; <span class="name">property</span>: <span class="string">"width"</span>; <span class="name">duration</span>: <span class="number">1000</span> }
<span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">property</span>: <span class="string">"opacity"</span>; <span class="name">duration</span>: <span class="number">200</span> }
},
<span class="type"><a href="qml-transition.html">Transition</a></span> {
<span class="name">to</span>: <span class="string">"starting"</span>
<span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">target</span>: <span class="name">progressIndicator</span>; <span class="name">property</span>: <span class="string">"width"</span>; <span class="name">duration</span>: <span class="number">1000</span> }
<span class="type"><a href="qml-numberanimation.html">NumberAnimation</a></span> { <span class="name">property</span>: <span class="string">"opacity"</span>; <span class="name">duration</span>: <span class="number">200</span> }
}
]
}</pre>
</div>
<!-- @@@demos/declarative/snake/qml/snake/snake.qml -->
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