<?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>states.cpp Example File | Qt Widgets 5.12.2</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 >states.cpp Example File</td></tr></table><table class="buildversion"><tr> <td id="buildversion" width="100%" align="right"><a href="qtwidgets-index.html">Qt 5.12.2 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">states.cpp Example File</h1> <span class="subtitle">animation/sub-attaq/states.cpp</span> <!-- $$$animation/sub-attaq/states.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 "states.h"</span> <span class="preprocessor">#include "graphicsscene.h"</span> <span class="preprocessor">#include "boat.h"</span> <span class="preprocessor">#include "submarine.h"</span> <span class="preprocessor">#include "torpedo.h"</span> <span class="preprocessor">#include "animationmanager.h"</span> <span class="preprocessor">#include "progressitem.h"</span> <span class="preprocessor">#include "textinformationitem.h"</span> <span class="comment">//Qt</span> <span class="preprocessor">#include <QtWidgets/QMessageBox></span> <span class="preprocessor">#include <QtWidgets/QGraphicsView></span> <span class="preprocessor">#include <QtCore/QStateMachine></span> <span class="preprocessor">#include <QtWidgets/QKeyEventTransition></span> <span class="preprocessor">#include <QtCore/QFinalState></span> <span class="preprocessor">#include <QtCore/QRandomGenerator></span> PlayState<span class="operator">::</span>PlayState(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> scene(scene)<span class="operator">,</span> machine(<span class="number">0</span>)<span class="operator">,</span> currentLevel(<span class="number">0</span>)<span class="operator">,</span> score(<span class="number">0</span>) { } PlayState<span class="operator">::</span><span class="operator">~</span>PlayState() { <span class="keyword">delete</span> machine; } <span class="type">void</span> PlayState<span class="operator">::</span>onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { <span class="comment">//We are now playing?</span> <span class="keyword">if</span> (machine) { machine<span class="operator">-</span><span class="operator">></span>stop(); <span class="comment">//we hide the information</span> scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>hide(); scene<span class="operator">-</span><span class="operator">></span>clearScene(); currentLevel <span class="operator">=</span> <span class="number">0</span>; score <span class="operator">=</span> <span class="number">0</span>; <span class="keyword">delete</span> machine; } machine <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span>; <span class="comment">//This state is when player is playing</span> LevelState <span class="operator">*</span>levelState <span class="operator">=</span> <span class="keyword">new</span> LevelState(scene<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> machine); <span class="comment">//This state is when the player is actually playing but the game is not paused</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>playingState <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(levelState); levelState<span class="operator">-</span><span class="operator">></span>setInitialState(playingState); <span class="comment">//This state is when the game is paused</span> PauseState <span class="operator">*</span>pauseState <span class="operator">=</span> <span class="keyword">new</span> PauseState(scene<span class="operator">,</span> levelState); <span class="comment">//We have one view, it receive the key press event</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> <span class="operator">*</span>pressPplay <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(scene<span class="operator">-</span><span class="operator">></span>views()<span class="operator">.</span>at(<span class="number">0</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_P); pressPplay<span class="operator">-</span><span class="operator">></span>setTargetState(pauseState); <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span> <span class="operator">*</span>pressPpause <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qkeyeventtransition.html">QKeyEventTransition</a></span>(scene<span class="operator">-</span><span class="operator">></span>views()<span class="operator">.</span>at(<span class="number">0</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_P); pressPpause<span class="operator">-</span><span class="operator">></span>setTargetState(playingState); <span class="comment">//Pause "P" is triggered, the player pause the game</span> playingState<span class="operator">-</span><span class="operator">></span>addTransition(pressPplay); <span class="comment">//To get back playing when the game has been paused</span> pauseState<span class="operator">-</span><span class="operator">></span>addTransition(pressPpause); <span class="comment">//This state is when player have lost</span> LostState <span class="operator">*</span>lostState <span class="operator">=</span> <span class="keyword">new</span> LostState(scene<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> machine); <span class="comment">//This state is when player have won</span> WinState <span class="operator">*</span>winState <span class="operator">=</span> <span class="keyword">new</span> WinState(scene<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> machine); <span class="comment">//The boat has been destroyed then the game is finished</span> levelState<span class="operator">-</span><span class="operator">></span>addTransition(scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">,</span> SIGNAL(boatExecutionFinished())<span class="operator">,</span>lostState); <span class="comment">//This transition check if we won or not</span> WinTransition <span class="operator">*</span>winTransition <span class="operator">=</span> <span class="keyword">new</span> WinTransition(scene<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> winState); <span class="comment">//The boat has been destroyed then the game is finished</span> levelState<span class="operator">-</span><span class="operator">></span>addTransition(winTransition); <span class="comment">//This state is an animation when the score changed</span> UpdateScoreState <span class="operator">*</span>scoreState <span class="operator">=</span> <span class="keyword">new</span> UpdateScoreState(levelState); <span class="comment">//This transition update the score when a submarine die</span> UpdateScoreTransition <span class="operator">*</span>scoreTransition <span class="operator">=</span> <span class="keyword">new</span> UpdateScoreTransition(scene<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> levelState); scoreTransition<span class="operator">-</span><span class="operator">></span>setTargetState(scoreState); <span class="comment">//The boat has been destroyed then the game is finished</span> playingState<span class="operator">-</span><span class="operator">></span>addTransition(scoreTransition); <span class="comment">//We go back to play state</span> scoreState<span class="operator">-</span><span class="operator">></span>addTransition(playingState); <span class="comment">//We start playing!!!</span> machine<span class="operator">-</span><span class="operator">></span>setInitialState(levelState); <span class="comment">//Final state</span> <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 transition is triggered when the player press space after completing a level</span> CustomSpaceTransition <span class="operator">*</span>spaceTransition <span class="operator">=</span> <span class="keyword">new</span> CustomSpaceTransition(scene<span class="operator">-</span><span class="operator">></span>views()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">,</span> <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_Space); spaceTransition<span class="operator">-</span><span class="operator">></span>setTargetState(levelState); winState<span class="operator">-</span><span class="operator">></span>addTransition(spaceTransition); <span class="comment">//We lost we should reach the final state</span> lostState<span class="operator">-</span><span class="operator">></span>addTransition(lostState<span class="operator">,</span> SIGNAL(finished())<span class="operator">,</span> final); machine<span class="operator">-</span><span class="operator">></span>start(); } LevelState<span class="operator">::</span>LevelState(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> PlayState <span class="operator">*</span>game<span class="operator">,</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> scene(scene)<span class="operator">,</span> game(game) { } <span class="type">void</span> LevelState<span class="operator">::</span>onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { initializeLevel(); } <span class="type">void</span> LevelState<span class="operator">::</span>initializeLevel() { <span class="comment">//we re-init the boat</span> scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setPos(scene<span class="operator">-</span><span class="operator">></span>width()<span class="operator">/</span><span class="number">2</span><span class="operator">,</span> scene<span class="operator">-</span><span class="operator">></span>sealLevel() <span class="operator">-</span> scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>height()); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(<span class="number">0</span>); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setCurrentDirection(Boat<span class="operator">::</span>None); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setBombsLaunched(<span class="number">0</span>); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>show(); scene<span class="operator">-</span><span class="operator">></span>setFocusItem(scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>OtherFocusReason); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>run(); scene<span class="operator">-</span><span class="operator">></span>progressItem<span class="operator">-</span><span class="operator">></span>setScore(game<span class="operator">-</span><span class="operator">></span>score); scene<span class="operator">-</span><span class="operator">></span>progressItem<span class="operator">-</span><span class="operator">></span>setLevel(game<span class="operator">-</span><span class="operator">></span>currentLevel <span class="operator">+</span> <span class="number">1</span>); GraphicsScene<span class="operator">::</span>LevelDescription currentLevelDescription <span class="operator">=</span> scene<span class="operator">-</span><span class="operator">></span>levelsData<span class="operator">.</span>value(game<span class="operator">-</span><span class="operator">></span>currentLevel); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> currentLevelDescription<span class="operator">.</span>submarines<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i ) { <span class="type"><a href="../qtcore/qpair.html">QPair</a></span><span class="operator"><</span><span class="type">int</span><span class="operator">,</span><span class="type">int</span><span class="operator">></span> subContent <span class="operator">=</span> currentLevelDescription<span class="operator">.</span>submarines<span class="operator">.</span>at(i); GraphicsScene<span class="operator">::</span>SubmarineDescription submarineDesc <span class="operator">=</span> scene<span class="operator">-</span><span class="operator">></span>submarinesData<span class="operator">.</span>at(subContent<span class="operator">.</span>first); <span class="keyword">for</span> (<span class="type">int</span> j <span class="operator">=</span> <span class="number">0</span>; j <span class="operator"><</span> subContent<span class="operator">.</span>second; <span class="operator">+</span><span class="operator">+</span>j ) { SubMarine <span class="operator">*</span>sub <span class="operator">=</span> <span class="keyword">new</span> SubMarine(submarineDesc<span class="operator">.</span>type<span class="operator">,</span> submarineDesc<span class="operator">.</span>name<span class="operator">,</span> submarineDesc<span class="operator">.</span>points); scene<span class="operator">-</span><span class="operator">></span>addItem(sub); <span class="type">int</span> random <span class="operator">=</span> <span class="type"><a href="../qtcore/qrandomgenerator.html">QRandomGenerator</a></span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">15</span>) <span class="operator">+</span> <span class="number">1</span>; <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> x <span class="operator">=</span> random <span class="operator">=</span><span class="operator">=</span> <span class="number">13</span> <span class="operator">|</span><span class="operator">|</span> random <span class="operator">=</span><span class="operator">=</span> <span class="number">5</span> <span class="operator">?</span> <span class="number">0</span> : scene<span class="operator">-</span><span class="operator">></span>width() <span class="operator">-</span> sub<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>width(); <span class="type"><a href="../qtcore/qtglobal.html#qreal-typedef">qreal</a></span> y <span class="operator">=</span> scene<span class="operator">-</span><span class="operator">></span>height() <span class="operator">-</span>(<span class="type"><a href="../qtcore/qrandomgenerator.html">QRandomGenerator</a></span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">150</span>) <span class="operator">+</span> <span class="number">1</span>) <span class="operator">-</span> sub<span class="operator">-</span><span class="operator">></span>size()<span class="operator">.</span>height(); sub<span class="operator">-</span><span class="operator">></span>setPos(x<span class="operator">,</span>y); sub<span class="operator">-</span><span class="operator">></span>setCurrentDirection(x <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span> <span class="operator">?</span> SubMarine<span class="operator">::</span>Right : SubMarine<span class="operator">::</span>Left); sub<span class="operator">-</span><span class="operator">></span>setCurrentSpeed(<span class="type"><a href="../qtcore/qrandomgenerator.html">QRandomGenerator</a></span><span class="operator">::</span>global()<span class="operator">-</span><span class="operator">></span>bounded(<span class="number">3</span>) <span class="operator">+</span> <span class="number">1</span>); } } } <span class="comment">/** Pause State */</span> PauseState<span class="operator">::</span>PauseState(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span>scene(scene) { } <span class="type">void</span> PauseState<span class="operator">::</span>onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { AnimationManager<span class="operator">::</span>self()<span class="operator">-</span><span class="operator">></span>pauseAll(); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">false</span>); } <span class="type">void</span> PauseState<span class="operator">::</span>onExit(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { AnimationManager<span class="operator">::</span>self()<span class="operator">-</span><span class="operator">></span>resumeAll(); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setEnabled(<span class="keyword">true</span>); scene<span class="operator">-</span><span class="operator">></span>boat<span class="operator">-</span><span class="operator">></span>setFocus(); } <span class="comment">/** Lost State */</span> LostState<span class="operator">::</span>LostState(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> PlayState <span class="operator">*</span>game<span class="operator">,</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> scene(scene)<span class="operator">,</span> game(game) { } <span class="type">void</span> LostState<span class="operator">::</span>onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { <span class="comment">//The message to display</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> message <span class="operator">=</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"You lose on level %1. Your score is %2."</span>)<span class="operator">.</span>arg(game<span class="operator">-</span><span class="operator">></span>currentLevel<span class="operator">+</span><span class="number">1</span>)<span class="operator">.</span>arg(game<span class="operator">-</span><span class="operator">></span>score); <span class="comment">//We set the level back to 0</span> game<span class="operator">-</span><span class="operator">></span>currentLevel <span class="operator">=</span> <span class="number">0</span>; <span class="comment">//We set the score back to 0</span> game<span class="operator">-</span><span class="operator">></span>score <span class="operator">=</span> <span class="number">0</span>; <span class="comment">//We clear the scene</span> scene<span class="operator">-</span><span class="operator">></span>clearScene(); <span class="comment">//We inform the player</span> scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>setMessage(message); scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>show(); } <span class="type">void</span> LostState<span class="operator">::</span>onExit(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { <span class="comment">//we hide the information</span> scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>hide(); } <span class="comment">/** Win State */</span> WinState<span class="operator">::</span>WinState(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> PlayState <span class="operator">*</span>game<span class="operator">,</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent)<span class="operator">,</span> scene(scene)<span class="operator">,</span> game(game) { } <span class="type">void</span> WinState<span class="operator">::</span>onEntry(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { <span class="comment">//We clear the scene</span> scene<span class="operator">-</span><span class="operator">></span>clearScene(); <span class="type"><a href="../qtcore/qstring.html">QString</a></span> message; <span class="keyword">if</span> (scene<span class="operator">-</span><span class="operator">></span>levelsData<span class="operator">.</span>size() <span class="operator">-</span> <span class="number">1</span> <span class="operator">!</span><span class="operator">=</span> game<span class="operator">-</span><span class="operator">></span>currentLevel) { message <span class="operator">=</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"You win the level %1. Your score is %2.\nPress Space to continue."</span>)<span class="operator">.</span>arg(game<span class="operator">-</span><span class="operator">></span>currentLevel<span class="operator">+</span><span class="number">1</span>)<span class="operator">.</span>arg(game<span class="operator">-</span><span class="operator">></span>score); <span class="comment">//We increment the level number</span> game<span class="operator">-</span><span class="operator">></span>currentLevel<span class="operator">+</span><span class="operator">+</span>; } <span class="keyword">else</span> { message <span class="operator">=</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>(<span class="string">"You finish the game on level %1. Your score is %2."</span>)<span class="operator">.</span>arg(game<span class="operator">-</span><span class="operator">></span>currentLevel<span class="operator">+</span><span class="number">1</span>)<span class="operator">.</span>arg(game<span class="operator">-</span><span class="operator">></span>score); <span class="comment">//We set the level back to 0</span> game<span class="operator">-</span><span class="operator">></span>currentLevel <span class="operator">=</span> <span class="number">0</span>; <span class="comment">//We set the score back to 0</span> game<span class="operator">-</span><span class="operator">></span>score <span class="operator">=</span> <span class="number">0</span>; } <span class="comment">//We inform the player</span> scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>setMessage(message); scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>show(); } <span class="type">void</span> WinState<span class="operator">::</span>onExit(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>) { <span class="comment">//we hide the information</span> scene<span class="operator">-</span><span class="operator">></span>textInformationItem<span class="operator">-</span><span class="operator">></span>hide(); } <span class="comment">/** UpdateScore State */</span> UpdateScoreState<span class="operator">::</span>UpdateScoreState(<span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="../qtcore/qstate.html">QState</a></span>(parent) { } <span class="comment">/** Win transition */</span> UpdateScoreTransition<span class="operator">::</span>UpdateScoreTransition(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> PlayState <span class="operator">*</span>game<span class="operator">,</span> <span class="type"><a href="../qtcore/qabstractstate.html">QAbstractState</a></span> <span class="operator">*</span>target) : <span class="type"><a href="../qtcore/qsignaltransition.html">QSignalTransition</a></span>(scene<span class="operator">,</span>SIGNAL(subMarineDestroyed(<span class="type">int</span>)))<span class="operator">,</span> game(game)<span class="operator">,</span> scene(scene) { setTargetState(target); } bool UpdateScoreTransition<span class="operator">::</span>eventTest(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>event) { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="../qtcore/qsignaltransition.html">QSignalTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent <span class="operator">*</span>se <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent<span class="operator">*</span><span class="operator">></span>(event); game<span class="operator">-</span><span class="operator">></span>score <span class="operator">+</span><span class="operator">=</span> se<span class="operator">-</span><span class="operator">></span>arguments()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">.</span>toInt(); scene<span class="operator">-</span><span class="operator">></span>progressItem<span class="operator">-</span><span class="operator">></span>setScore(game<span class="operator">-</span><span class="operator">></span>score); <span class="keyword">return</span> <span class="keyword">true</span>; } <span class="comment">/** Win transition */</span> WinTransition<span class="operator">::</span>WinTransition(GraphicsScene <span class="operator">*</span>scene<span class="operator">,</span> PlayState <span class="operator">*</span>game<span class="operator">,</span> <span class="type"><a href="../qtcore/qabstractstate.html">QAbstractState</a></span> <span class="operator">*</span>target) : <span class="type"><a href="../qtcore/qsignaltransition.html">QSignalTransition</a></span>(scene<span class="operator">,</span>SIGNAL(allSubMarineDestroyed(<span class="type">int</span>)))<span class="operator">,</span> game(game)<span class="operator">,</span> scene(scene) { setTargetState(target); } bool WinTransition<span class="operator">::</span>eventTest(<span class="type"><a href="../qtcore/qevent.html">QEvent</a></span> <span class="operator">*</span>event) { <span class="keyword">if</span> (<span class="operator">!</span><span class="type"><a href="../qtcore/qsignaltransition.html">QSignalTransition</a></span><span class="operator">::</span>eventTest(event)) <span class="keyword">return</span> <span class="keyword">false</span>; <span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent <span class="operator">*</span>se <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span><span class="operator">::</span>SignalEvent<span class="operator">*</span><span class="operator">></span>(event); game<span class="operator">-</span><span class="operator">></span>score <span class="operator">+</span><span class="operator">=</span> se<span class="operator">-</span><span class="operator">></span>arguments()<span class="operator">.</span>at(<span class="number">0</span>)<span class="operator">.</span>toInt(); scene<span class="operator">-</span><span class="operator">></span>progressItem<span class="operator">-</span><span class="operator">></span>setScore(game<span class="operator">-</span><span class="operator">></span>score); <span class="keyword">return</span> <span class="keyword">true</span>; } <span class="comment">/** Space transition */</span> CustomSpaceTransition<span class="operator">::</span>CustomSpaceTransition(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget<span class="operator">,</span> PlayState <span class="operator">*</span>game<span class="operator">,</span> <span class="type"><a href="../qtcore/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>(widget<span class="operator">,</span> type<span class="operator">,</span> key)<span class="operator">,</span> game(game) { } bool CustomSpaceTransition<span class="operator">::</span>eventTest(<span class="type"><a href="../qtcore/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> (game<span class="operator">-</span><span class="operator">></span>currentLevel <span class="operator">!</span><span class="operator">=</span> <span class="number">0</span>); } </pre> </div> <!-- @@@animation/sub-attaq/states.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>