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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">boat_p.h Example File</h1> <span class="small-subtitle">demos/sub-attaq/boat_p.h</span> <!-- $$$demos/sub-attaq/boat_p.h-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <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 examples 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> <span class="preprocessor">#ifndef BOAT_P_H</span> <span class="preprocessor">#define BOAT_P_H</span> <span class="comment">//</span> <span class="comment">// W A R N I N G</span> <span class="comment">// -------------</span> <span class="comment">//</span> <span class="comment">// This file is not part of the Qt API. It exists purely as an</span> <span class="comment">// implementation detail. This header file may change from version to</span> <span class="comment">// version without notice, or even be removed.</span> <span class="comment">//</span> <span class="comment">// We mean it.</span> <span class="comment">//</span> <span class="comment">//Own</span> <span class="preprocessor">#include "bomb.h"</span> <span class="preprocessor">#include "graphicsscene.h"</span> <span class="comment">// Qt</span> <span class="preprocessor">#include <QtGui/QKeyEventTransition></span> <span class="keyword">static</span> <span class="keyword">const</span> <span class="type">int</span> MAX_BOMB <span class="operator">=</span> <span class="number">5</span>; <span class="comment">//These transtion test if we have to stop the boat (i.e current speed is 1)</span> <span class="keyword">class</span> KeyStopTransition : <span class="keyword">public</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> { <span class="keyword">public</span>: KeyStopTransition(Boat <span class="operator">*</span>b<span class="operator">,</span> <span class="type"><a href="qevent.html">QEvent</a></span><span class="operator">::</span>Type t<span class="operator">,</span> <span class="type">int</span> k) : <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(b<span class="operator">,</span> t<span class="operator">,</span> k)<span class="operator">,</span> boat(b)<span class="operator">,</span> key(k) { } <span class="keyword">protected</span>: <span class="keyword">virtual</span> <span class="type">bool</span> eventTest(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>event) { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="keyword">return</span> (boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">=</span><span class="operator">=</span> <span class="number">1</span>); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; <span class="type">int</span> key; }; <span class="comment">//These transtion test if we have to move the boat (i.e current speed was 0 or another value)</span> <span class="keyword">class</span> KeyMoveTransition : <span class="keyword">public</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> { <span class="keyword">public</span>: KeyMoveTransition(Boat <span class="operator">*</span>b<span class="operator">,</span> <span class="type"><a href="qevent.html">QEvent</a></span><span class="operator">::</span>Type t<span class="operator">,</span> <span class="type">int</span> k) : <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(b<span class="operator">,</span> t<span class="operator">,</span> k)<span class="operator">,</span> boat(b)<span class="operator">,</span> key(k) { } <span class="keyword">protected</span>: <span class="keyword">virtual</span> <span class="type">bool</span> eventTest(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>event) { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="keyword">return</span> (boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>); } <span class="type">void</span> onTransition(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>) { <span class="comment">//We decrease the speed if needed</span> <span class="keyword">if</span> (key <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Left <span class="operator">&</span><span class="operator">&</span> boat<span class="operator">-</span><span class="operator">></span>currentDirection() <span class="operator">=</span><span class="operator">=</span> Boat<span class="operator">::</span>Right) boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">-</span> <span class="number">1</span>); <span class="keyword">else</span> <span class="keyword">if</span> (key <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Key_Right <span class="operator">&</span><span class="operator">&</span> boat<span class="operator">-</span><span class="operator">></span>currentDirection() <span class="operator">=</span><span class="operator">=</span> Boat<span class="operator">::</span>Left) boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">-</span> <span class="number">1</span>); <span class="keyword">else</span> <span class="keyword">if</span> (boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator"><</span> <span class="number">3</span>) boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(boat<span class="operator">-</span><span class="operator">></span>currentSpeed() <span class="operator">+</span> <span class="number">1</span>); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; <span class="type">int</span> key; }; <span class="comment">//This transition trigger the bombs launch</span> <span class="keyword">class</span> KeyLaunchTransition : <span class="keyword">public</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> { <span class="keyword">public</span>: KeyLaunchTransition(Boat <span class="operator">*</span>boat<span class="operator">,</span> <span class="type"><a href="qevent.html">QEvent</a></span><span class="operator">::</span>Type type<span class="operator">,</span> <span class="type">int</span> key) : <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(boat<span class="operator">,</span> type<span class="operator">,</span> key)<span class="operator">,</span> boat(boat)<span class="operator">,</span> key(key) { } <span class="keyword">protected</span>: <span class="keyword">virtual</span> <span class="type">bool</span> eventTest(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>event) { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="comment">//We have enough bomb?</span> <span class="keyword">return</span> (boat<span class="operator">-</span><span class="operator">></span>bombsLaunched() <span class="operator"><</span> MAX_BOMB); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; <span class="type">int</span> key; }; <span class="comment">//This state is describing when the boat is moving right</span> <span class="keyword">class</span> MoveStateRight : <span class="keyword">public</span> <span class="type"><a href="qstate.html">QState</a></span> { <span class="keyword">public</span>: MoveStateRight(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>) { boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>Right); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing when the boat is moving left</span> <span class="keyword">class</span> MoveStateLeft : <span class="keyword">public</span> <span class="type"><a href="qstate.html">QState</a></span> { <span class="keyword">public</span>: MoveStateLeft(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>) { boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>Left); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing when the boat is in a stand by position</span> <span class="keyword">class</span> StopState : <span class="keyword">public</span> <span class="type"><a href="qstate.html">QState</a></span> { <span class="keyword">public</span>: StopState(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>) { boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(<span class="number">0</span>); boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>None); boat<span class="operator">-</span><span class="operator">></span>updateBoatMovement(); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing the launch of the torpedo on the right</span> <span class="keyword">class</span> LaunchStateRight : <span class="keyword">public</span> <span class="type"><a href="qstate.html">QState</a></span> { <span class="keyword">public</span>: LaunchStateRight(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>) { Bomb <span class="operator">*</span>b <span class="operator">=</span> <span class="keyword">new</span> Bomb(); b<span class="operator">-</span><span class="operator">></span>setPos(boat<span class="operator">-</span><span class="operator">></span>x()<span class="operator">+</span>boat<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>width()<span class="operator">,</span>boat<span class="operator">-</span><span class="operator">></span>y()); GraphicsScene <span class="operator">*</span>scene <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span>GraphicsScene <span class="operator">*</span><span class="operator">></span>(boat<span class="operator">-</span><span class="operator">></span>scene()); scene<span class="operator">-</span><span class="operator">></span>addItem(b); b<span class="operator">-</span><span class="operator">></span>launch(Bomb<span class="operator">::</span>Right); boat<span class="operator">-</span><span class="operator">></span>setBombsLaunched(boat<span class="operator">-</span><span class="operator">></span>bombsLaunched() <span class="operator">+</span> <span class="number">1</span>); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="comment">//This state is describing the launch of the torpedo on the left</span> <span class="keyword">class</span> LaunchStateLeft : <span class="keyword">public</span> <span class="type"><a href="qstate.html">QState</a></span> { <span class="keyword">public</span>: LaunchStateLeft(Boat <span class="operator">*</span>boat<span class="operator">,</span><span class="type"><a href="qstate.html">QState</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>) : <span class="type"><a href="qstate.html">QState</a></span>(parent)<span class="operator">,</span> boat(boat) { } <span class="keyword">protected</span>: <span class="type">void</span> onEntry(<span class="type"><a href="qevent.html">QEvent</a></span> <span class="operator">*</span>) { Bomb <span class="operator">*</span>b <span class="operator">=</span> <span class="keyword">new</span> Bomb(); b<span class="operator">-</span><span class="operator">></span>setPos(boat<span class="operator">-</span><span class="operator">></span>x() <span class="operator">-</span> b<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>width()<span class="operator">,</span> boat<span class="operator">-</span><span class="operator">></span>y()); GraphicsScene <span class="operator">*</span>scene <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span>GraphicsScene <span class="operator">*</span><span class="operator">></span>(boat<span class="operator">-</span><span class="operator">></span>scene()); scene<span class="operator">-</span><span class="operator">></span>addItem(b); b<span class="operator">-</span><span class="operator">></span>launch(Bomb<span class="operator">::</span>Left); boat<span class="operator">-</span><span class="operator">></span>setBombsLaunched(boat<span class="operator">-</span><span class="operator">></span>bombsLaunched() <span class="operator">+</span> <span class="number">1</span>); } <span class="keyword">private</span>: Boat <span class="operator">*</span> boat; }; <span class="preprocessor">#endif // BOAT_P_H</span></pre> </div> <!-- @@@demos/sub-attaq/boat_p.h --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. 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