<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE html> <html lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>boat.cpp Example File | Qt Widgets 5.12.6</title> <link rel="stylesheet" type="text/css" href="style/offline-simple.css" /> <script type="text/javascript"> document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css"); // loading style sheet breaks anchors that were jumped to before // so force jumping to anchor again setTimeout(function() { var anchor = location.hash; // need to jump to different anchor first (e.g. none) location.hash = "#"; setTimeout(function() { location.hash = anchor; }, 0); }, 0); </script> </head> <body> <div class="header" id="qtdocheader"> <div class="main"> <div class="main-rounded"> <div class="navigationbar"> <table><tr> <td >Qt 5.12</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-animation-sub-attaq-example.html">Sub-Attaq</a></td><td >boat.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.6 Reference Documentation</a></td> </tr></table> </div> </div> <div class="content"> <div class="line"> <div class="content mainContent"> <div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div> <h1 class="title">boat.cpp Example File</h1> <span class="subtitle">animation/sub-attaq/boat.cpp</span> <!-- $$$animation/sub-attaq/boat.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/</span> <span class="comment">//Own</span> <span class="preprocessor">#include "boat.h"</span> <span class="preprocessor">#include "boat_p.h"</span> <span class="preprocessor">#include "bomb.h"</span> <span class="preprocessor">#include "pixmapitem.h"</span> <span class="preprocessor">#include "graphicsscene.h"</span> <span class="preprocessor">#include "animationmanager.h"</span> <span class="preprocessor">#include "qanimationstate.h"</span> <span class="comment">//Qt</span> <span class="preprocessor">#include <QtCore/QPropertyAnimation></span> <span class="preprocessor">#include <QtCore/QStateMachine></span> <span class="preprocessor">#include <QtCore/QHistoryState></span> <span class="preprocessor">#include <QtCore/QFinalState></span> <span class="preprocessor">#include <QtCore/QState></span> <span class="preprocessor">#include <QtCore/QSequentialAnimationGroup></span> <span class="keyword">static</span> <span class="type"><a href="../qtcore/qabstractanimation.html">QAbstractAnimation</a></span> <span class="operator">*</span>setupDestroyAnimation(Boat <span class="operator">*</span>boat) { <span class="type"><a href="../qtcore/qsequentialanimationgroup.html">QSequentialAnimationGroup</a></span> <span class="operator">*</span>group <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qsequentialanimationgroup.html">QSequentialAnimationGroup</a></span>(boat); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">1</span>; i <span class="operator"><</span><span class="operator">=</span> <span class="number">4</span>; i<span class="operator">+</span><span class="operator">+</span>) { PixmapItem <span class="operator">*</span>step <span class="operator">=</span> <span class="keyword">new</span> PixmapItem(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"explosion/boat/step%1"</span>)<span class="operator">.</span>arg(i)<span class="operator">,</span>GraphicsScene<span class="operator">::</span>Big<span class="operator">,</span> boat); step<span class="operator">-</span><span class="operator">></span>setZValue(<span class="number">6</span>); step<span class="operator">-</span><span class="operator">></span>setOpacity(<span class="number">0</span>); <span class="comment">//fade-in</span> <span class="type"><a href="../qtcore/qpropertyanimation.html">QPropertyAnimation</a></span> <span class="operator">*</span>anim <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qpropertyanimation.html">QPropertyAnimation</a></span>(step<span class="operator">,</span> <span class="string">"opacity"</span>); anim<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="number">1</span>); anim<span class="operator">-</span><span class="operator">></span>setDuration(<span class="number">100</span>); group<span class="operator">-</span><span class="operator">></span>insertAnimation(i<span class="operator">-</span><span class="number">1</span><span class="operator">,</span> anim); <span class="comment">//and then fade-out</span> <span class="type"><a href="../qtcore/qpropertyanimation.html">QPropertyAnimation</a></span> <span class="operator">*</span>anim2 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qpropertyanimation.html">QPropertyAnimation</a></span>(step<span class="operator">,</span> <span class="string">"opacity"</span>); anim2<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="number">0</span>); anim2<span class="operator">-</span><span class="operator">></span>setDuration(<span class="number">100</span>); group<span class="operator">-</span><span class="operator">></span>addAnimation(anim2); } AnimationManager<span class="operator">::</span>self()<span class="operator">-</span><span class="operator">></span>registerAnimation(group); <span class="keyword">return</span> group; } Boat<span class="operator">::</span>Boat() : PixmapItem(<span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"boat"</span>)<span class="operator">,</span> GraphicsScene<span class="operator">::</span>Big)<span class="operator">,</span> speed(<span class="number">0</span>)<span class="operator">,</span> bombsAlreadyLaunched(<span class="number">0</span>)<span class="operator">,</span> direction(Boat<span class="operator">::</span>None)<span class="operator">,</span> movementAnimation(<span class="number">0</span>) { setZValue(<span class="number">4</span>); setFlags(<span class="type"><a href="qgraphicsitem.html">QGraphicsItem</a></span><span class="operator">::</span>ItemIsFocusable); <span class="comment">//The movement animation used to animate the boat</span> movementAnimation <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qpropertyanimation.html">QPropertyAnimation</a></span>(<span class="keyword">this</span><span class="operator">,</span> <span class="string">"pos"</span>); <span class="comment">//The destroy animation used to explode the boat</span> destroyAnimation <span class="operator">=</span> setupDestroyAnimation(<span class="keyword">this</span>); <span class="comment">//We setup the state machine of the boat</span> machine <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span>(<span class="keyword">this</span>); <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>moving <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(machine); StopState <span class="operator">*</span>stopState <span class="operator">=</span> <span class="keyword">new</span> StopState(<span class="keyword">this</span><span class="operator">,</span> moving); machine<span class="operator">-</span><span class="operator">></span>setInitialState(moving); moving<span class="operator">-</span><span class="operator">></span>setInitialState(stopState); MoveStateRight <span class="operator">*</span>moveStateRight <span class="operator">=</span> <span class="keyword">new</span> MoveStateRight(<span class="keyword">this</span><span class="operator">,</span> moving); MoveStateLeft <span class="operator">*</span>moveStateLeft <span class="operator">=</span> <span class="keyword">new</span> MoveStateLeft(<span class="keyword">this</span><span class="operator">,</span> moving); LaunchStateRight <span class="operator">*</span>launchStateRight <span class="operator">=</span> <span class="keyword">new</span> LaunchStateRight(<span class="keyword">this</span><span class="operator">,</span> machine); LaunchStateLeft <span class="operator">*</span>launchStateLeft <span class="operator">=</span> <span class="keyword">new</span> LaunchStateLeft(<span class="keyword">this</span><span class="operator">,</span> machine); <span class="comment">//then setup the transitions for the rightMove state</span> KeyStopTransition <span class="operator">*</span>leftStopRight <span class="operator">=</span> <span class="keyword">new</span> KeyStopTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Left); leftStopRight<span class="operator">-</span><span class="operator">></span>setTargetState(stopState); KeyMoveTransition <span class="operator">*</span>leftMoveRight <span class="operator">=</span> <span class="keyword">new</span> KeyMoveTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Left); leftMoveRight<span class="operator">-</span><span class="operator">></span>setTargetState(moveStateRight); KeyMoveTransition <span class="operator">*</span>rightMoveRight <span class="operator">=</span> <span class="keyword">new</span> KeyMoveTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Right); rightMoveRight<span class="operator">-</span><span class="operator">></span>setTargetState(moveStateRight); KeyMoveTransition <span class="operator">*</span>rightMoveStop <span class="operator">=</span> <span class="keyword">new</span> KeyMoveTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Right); rightMoveStop<span class="operator">-</span><span class="operator">></span>setTargetState(moveStateRight); <span class="comment">//then setup the transitions for the leftMove state</span> KeyStopTransition <span class="operator">*</span>rightStopLeft <span class="operator">=</span> <span class="keyword">new</span> KeyStopTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Right); rightStopLeft<span class="operator">-</span><span class="operator">></span>setTargetState(stopState); KeyMoveTransition <span class="operator">*</span>rightMoveLeft <span class="operator">=</span> <span class="keyword">new</span> KeyMoveTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Right); rightMoveLeft<span class="operator">-</span><span class="operator">></span>setTargetState(moveStateLeft); KeyMoveTransition <span class="operator">*</span>leftMoveLeft <span class="operator">=</span> <span class="keyword">new</span> KeyMoveTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span><span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Left); leftMoveLeft<span class="operator">-</span><span class="operator">></span>setTargetState(moveStateLeft); KeyMoveTransition <span class="operator">*</span>leftMoveStop <span class="operator">=</span> <span class="keyword">new</span> KeyMoveTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span><span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Left); leftMoveStop<span class="operator">-</span><span class="operator">></span>setTargetState(moveStateLeft); <span class="comment">//We set up the right move state</span> moveStateRight<span class="operator">-</span><span class="operator">></span>addTransition(leftStopRight); moveStateRight<span class="operator">-</span><span class="operator">></span>addTransition(leftMoveRight); moveStateRight<span class="operator">-</span><span class="operator">></span>addTransition(rightMoveRight); stopState<span class="operator">-</span><span class="operator">></span>addTransition(rightMoveStop); <span class="comment">//We set up the left move state</span> moveStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(rightStopLeft); moveStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(leftMoveLeft); moveStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(rightMoveLeft); stopState<span class="operator">-</span><span class="operator">></span>addTransition(leftMoveStop); <span class="comment">//The animation is finished, it means we reached the border of the screen, the boat is stopped so we move to the stop state</span> moveStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(movementAnimation<span class="operator">,</span> SIGNAL(finished())<span class="operator">,</span> stopState); moveStateRight<span class="operator">-</span><span class="operator">></span>addTransition(movementAnimation<span class="operator">,</span> SIGNAL(finished())<span class="operator">,</span> stopState); <span class="comment">//We set up the keys for dropping bombs</span> KeyLaunchTransition <span class="operator">*</span>upFireLeft <span class="operator">=</span> <span class="keyword">new</span> KeyLaunchTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Up); upFireLeft<span class="operator">-</span><span class="operator">></span>setTargetState(launchStateRight); KeyLaunchTransition <span class="operator">*</span>upFireRight <span class="operator">=</span> <span class="keyword">new</span> KeyLaunchTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Up); upFireRight<span class="operator">-</span><span class="operator">></span>setTargetState(launchStateRight); KeyLaunchTransition <span class="operator">*</span>upFireStop <span class="operator">=</span> <span class="keyword">new</span> KeyLaunchTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Up); upFireStop<span class="operator">-</span><span class="operator">></span>setTargetState(launchStateRight); KeyLaunchTransition <span class="operator">*</span>downFireLeft <span class="operator">=</span> <span class="keyword">new</span> KeyLaunchTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Down); downFireLeft<span class="operator">-</span><span class="operator">></span>setTargetState(launchStateLeft); KeyLaunchTransition <span class="operator">*</span>downFireRight <span class="operator">=</span> <span class="keyword">new</span> KeyLaunchTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Down); downFireRight<span class="operator">-</span><span class="operator">></span>setTargetState(launchStateLeft); KeyLaunchTransition <span class="operator">*</span>downFireMove <span class="operator">=</span> <span class="keyword">new</span> KeyLaunchTransition(<span class="keyword">this</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>KeyPress<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Key_Down); downFireMove<span class="operator">-</span><span class="operator">></span>setTargetState(launchStateLeft); <span class="comment">//We set up transitions for fire up</span> moveStateRight<span class="operator">-</span><span class="operator">></span>addTransition(upFireRight); moveStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(upFireLeft); stopState<span class="operator">-</span><span class="operator">></span>addTransition(upFireStop); <span class="comment">//We set up transitions for fire down</span> moveStateRight<span class="operator">-</span><span class="operator">></span>addTransition(downFireRight); moveStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(downFireLeft); stopState<span class="operator">-</span><span class="operator">></span>addTransition(downFireMove); <span class="comment">//Finally the launch state should come back to its original state</span> <span class="type"><a href="../qtcore/qhistorystate.html">QHistoryState</a></span> <span class="operator">*</span>historyState <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qhistorystate.html">QHistoryState</a></span>(moving); launchStateLeft<span class="operator">-</span><span class="operator">></span>addTransition(historyState); launchStateRight<span class="operator">-</span><span class="operator">></span>addTransition(historyState); <span class="type"><a href="../qtcore/qfinalstate.html">QFinalState</a></span> <span class="operator">*</span>final <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qfinalstate.html">QFinalState</a></span>(machine); <span class="comment">//This state play the destroyed animation</span> <span class="type">QAnimationState</span> <span class="operator">*</span>destroyedState <span class="operator">=</span> <span class="keyword">new</span> <span class="type">QAnimationState</span>(machine); destroyedState<span class="operator">-</span><span class="operator">></span>setAnimation(destroyAnimation); <span class="comment">//Play a nice animation when the boat is destroyed</span> moving<span class="operator">-</span><span class="operator">></span>addTransition(<span class="keyword">this</span><span class="operator">,</span> SIGNAL(boatDestroyed())<span class="operator">,</span> destroyedState); <span class="comment">//Transition to final state when the destroyed animation is finished</span> destroyedState<span class="operator">-</span><span class="operator">></span>addTransition(destroyedState<span class="operator">,</span> SIGNAL(animationFinished())<span class="operator">,</span> final); <span class="comment">//The machine has finished to be executed, then the boat is dead</span> connect(machine<span class="operator">,</span>SIGNAL(finished())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SIGNAL(boatExecutionFinished())); } <span class="type">void</span> Boat<span class="operator">::</span>run() { <span class="comment">//We register animations</span> AnimationManager<span class="operator">::</span>self()<span class="operator">-</span><span class="operator">></span>registerAnimation(movementAnimation); AnimationManager<span class="operator">::</span>self()<span class="operator">-</span><span class="operator">></span>registerAnimation(destroyAnimation); machine<span class="operator">-</span><span class="operator">></span>start(); } <span class="type">void</span> Boat<span class="operator">::</span>stop() { movementAnimation<span class="operator">-</span><span class="operator">></span>stop(); machine<span class="operator">-</span><span class="operator">></span>stop(); } <span class="type">void</span> Boat<span class="operator">::</span>updateBoatMovement() { <span class="keyword">if</span> (speed <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">|</span><span class="operator">|</span> direction <span class="operator">=</span><span class="operator">=</span> Boat<span class="operator">::</span>None) { movementAnimation<span class="operator">-</span><span class="operator">></span>stop(); <span class="keyword">return</span>; } movementAnimation<span class="operator">-</span><span class="operator">></span>stop(); <span class="keyword">if</span> (direction <span class="operator">=</span><span class="operator">=</span> Boat<span class="operator">::</span>Left) { movementAnimation<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(<span class="number">0</span><span class="operator">,</span>y())); movementAnimation<span class="operator">-</span><span class="operator">></span>setDuration(x()<span class="operator">/</span>speed<span class="operator">*</span><span class="number">15</span>); } <span class="keyword">else</span> <span class="comment">/*if (direction == Boat::Right)*/</span> { movementAnimation<span class="operator">-</span><span class="operator">></span>setEndValue(<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(scene()<span class="operator">-</span><span class="operator">></span>width()<span class="operator">-</span>size()<span class="operator">.</span>width()<span class="operator">,</span>y())); movementAnimation<span class="operator">-</span><span class="operator">></span>setDuration((scene()<span class="operator">-</span><span class="operator">></span>width()<span class="operator">-</span>size()<span class="operator">.</span>width()<span class="operator">-</span>x())<span class="operator">/</span>speed<span class="operator">*</span><span class="number">15</span>); } movementAnimation<span class="operator">-</span><span class="operator">></span>start(); } <span class="type">void</span> Boat<span class="operator">::</span>destroy() { movementAnimation<span class="operator">-</span><span class="operator">></span>stop(); <span class="keyword">emit</span> boatDestroyed(); } <span class="type">int</span> Boat<span class="operator">::</span>bombsLaunched() <span class="keyword">const</span> { <span class="keyword">return</span> bombsAlreadyLaunched; } <span class="type">void</span> Boat<span class="operator">::</span>setBombsLaunched(<span class="type">int</span> number) { <span class="keyword">if</span> (number <span class="operator">></span> MAX_BOMB) { <a href="../qtcore/qtglobal.html#qWarning">qWarning</a>(<span class="string">"Boat::setBombsLaunched : It impossible to launch that number of bombs"</span>); <span class="keyword">return</span>; } bombsAlreadyLaunched <span class="operator">=</span> number; } <span class="type">int</span> Boat<span class="operator">::</span>currentSpeed() <span class="keyword">const</span> { <span class="keyword">return</span> speed; } <span class="type">void</span> Boat<span class="operator">::</span>setCurrentSpeed(<span class="type">int</span> speed) { <span class="keyword">if</span> (speed <span class="operator">></span> <span class="number">3</span> <span class="operator">|</span><span class="operator">|</span> speed <span class="operator"><</span> <span class="number">0</span>) { <a href="../qtcore/qtglobal.html#qWarning">qWarning</a>(<span class="string">"Boat::setCurrentSpeed: The boat can't run on that speed"</span>); <span class="keyword">return</span>; } <span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>speed <span class="operator">=</span> speed; } <span class="keyword">enum</span> Boat<span class="operator">::</span>Movement Boat<span class="operator">::</span>currentDirection() <span class="keyword">const</span> { <span class="keyword">return</span> direction; } <span class="type">void</span> Boat<span class="operator">::</span>setCurrentDirection(Movement direction) { <span class="keyword">this</span><span class="operator">-</span><span class="operator">></span>direction <span class="operator">=</span> direction; } <span class="type">int</span> Boat<span class="operator">::</span>type() <span class="keyword">const</span> { <span class="keyword">return</span> Type; } </pre> </div> <!-- @@@animation/sub-attaq/boat.cpp --> </div> </div> </div> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2019 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.<br/> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br/> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. </p> </div> </body> </html>