diff options
Diffstat (limited to 'examples/statemachine')
38 files changed, 3207 insertions, 0 deletions
diff --git a/examples/statemachine/README b/examples/statemachine/README new file mode 100644 index 0000000..2879e67 --- /dev/null +++ b/examples/statemachine/README @@ -0,0 +1,36 @@ +Qt is provided with a powerful hierchical finite state machine through +the Qt State Machine classes. + +The example launcher provided with Qt can be used to explore each of the +examples in this directory. + +Documentation for these examples can be found via the Tutorial and Examples +link in the main Qt documentation. + + +Finding the Qt Examples and Demos launcher +========================================== + +On Windows: + +The launcher can be accessed via the Windows Start menu. Select the menu +entry entitled "Qt Examples and Demos" entry in the submenu containing +the Qt tools. + +On Mac OS X: + +For the binary distribution, the qtdemo executable is installed in the +/Developer/Applications/Qt directory. For the source distribution, it is +installed alongside the other Qt tools on the path specified when Qt is +configured. + +On Unix/Linux: + +The qtdemo executable is installed alongside the other Qt tools on the path +specified when Qt is configured. + +On all platforms: + +The source code for the launcher can be found in the demos/qtdemo directory +in the Qt package. This example is built at the same time as the Qt libraries, +tools, examples, and demonstrations. diff --git a/examples/statemachine/eventtransitions/eventtransitions.pro b/examples/statemachine/eventtransitions/eventtransitions.pro new file mode 100644 index 0000000..7e92cf2 --- /dev/null +++ b/examples/statemachine/eventtransitions/eventtransitions.pro @@ -0,0 +1,7 @@ +SOURCES = main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/eventtransitions +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS eventtransitions.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/eventtransitions +INSTALLS += target sources diff --git a/examples/statemachine/eventtransitions/main.cpp b/examples/statemachine/eventtransitions/main.cpp new file mode 100644 index 0000000..aba0c73 --- /dev/null +++ b/examples/statemachine/eventtransitions/main.cpp @@ -0,0 +1,116 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#ifdef QT_STATEMACHINE_SOLUTION +#include <qstatemachine.h> +#include <qstate.h> +#include <qeventtransition.h> +#endif + +//! [0] +class Window : public QWidget +{ +public: + Window(QWidget *parent = 0) + : QWidget(parent) + { + QPushButton *button = new QPushButton(this); + button->setGeometry(QRect(100, 100, 100, 100)); +//! [0] + +//! [1] + QStateMachine *machine = new QStateMachine(this); + + QState *s1 = new QState(); + s1->assignProperty(button, "text", "Outside"); + + QState *s2 = new QState(); + s2->assignProperty(button, "text", "Inside"); +//! [1] + +//! [2] + QEventTransition *enterTransition = new QEventTransition(button, QEvent::Enter); + enterTransition->setTargetState(s2); + s1->addTransition(enterTransition); +//! [2] + +//! [3] + QEventTransition *leaveTransition = new QEventTransition(button, QEvent::Leave); + leaveTransition->setTargetState(s1); + s2->addTransition(leaveTransition); +//! [3] + +//! [4] + QState *s3 = new QState(); + s3->assignProperty(button, "text", "Pressing..."); + + QEventTransition *pressTransition = new QEventTransition(button, QEvent::MouseButtonPress); + pressTransition->setTargetState(s3); + s2->addTransition(pressTransition); + + QEventTransition *releaseTransition = new QEventTransition(button, QEvent::MouseButtonRelease); + releaseTransition->setTargetState(s2); + s3->addTransition(releaseTransition); +//! [4] + +//! [5] + machine->addState(s1); + machine->addState(s2); + machine->addState(s3); + + machine->setInitialState(s1); + machine->start(); + } +}; +//! [5] + +//! [6] +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + Window window; + window.resize(300, 300); + window.show(); + + return app.exec(); +} +//! [6] diff --git a/examples/statemachine/factorial/factorial.pro b/examples/statemachine/factorial/factorial.pro new file mode 100644 index 0000000..14a6833 --- /dev/null +++ b/examples/statemachine/factorial/factorial.pro @@ -0,0 +1,11 @@ +QT = core +win32: CONFIG += console +mac:CONFIG -= app_bundle + +SOURCES += main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/factorial +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS factorial.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/factorial +INSTALLS += target sources diff --git a/examples/statemachine/factorial/main.cpp b/examples/statemachine/factorial/main.cpp new file mode 100644 index 0000000..1065eb8 --- /dev/null +++ b/examples/statemachine/factorial/main.cpp @@ -0,0 +1,182 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore> +#include <stdio.h> +#ifdef QT_STATEMACHINE_SOLUTION +#include <qstatemachine.h> +#include <qstate.h> +#include <qsignaltransition.h> +#include <qfinalstate.h> +#endif + +//! [0] +class Factorial : public QObject +{ + Q_OBJECT + Q_PROPERTY(int x READ x WRITE setX) + Q_PROPERTY(int fac READ fac WRITE setFac) +public: + Factorial(QObject *parent = 0) + : QObject(parent), m_x(-1), m_fac(1) + { + } + + int x() const + { + return m_x; + } + + void setX(int x) + { + if (x == m_x) + return; + m_x = x; + emit xChanged(x); + } + + int fac() const + { + return m_fac; + } + + void setFac(int fac) + { + m_fac = fac; + } + +Q_SIGNALS: + void xChanged(int value); + +private: + int m_x; + int m_fac; +}; +//! [0] + +//! [1] +class FactorialLoopTransition : public QSignalTransition +{ +public: + FactorialLoopTransition(Factorial *fact) + : QSignalTransition(fact, SIGNAL(xChanged(int))), m_fact(fact) + {} + + virtual bool eventTest(QEvent *e) + { + if (!QSignalTransition::eventTest(e)) + return false; + QSignalEvent *se = static_cast<QSignalEvent*>(e); + return se->arguments().at(0).toInt() > 1; + } + + virtual void onTransition(QEvent *e) + { + QSignalEvent *se = static_cast<QSignalEvent*>(e); + int x = se->arguments().at(0).toInt(); + int fac = m_fact->property("fac").toInt(); + m_fact->setProperty("fac", x * fac); + m_fact->setProperty("x", x - 1); + } + +private: + Factorial *m_fact; +}; +//! [1] + +//! [2] +class FactorialDoneTransition : public QSignalTransition +{ +public: + FactorialDoneTransition(Factorial *fact) + : QSignalTransition(fact, SIGNAL(xChanged(int))), m_fact(fact) + {} + + virtual bool eventTest(QEvent *e) + { + if (!QSignalTransition::eventTest(e)) + return false; + QSignalEvent *se = static_cast<QSignalEvent*>(e); + return se->arguments().at(0).toInt() <= 1; + } + + virtual void onTransition(QEvent *) + { + fprintf(stdout, "%d\n", m_fact->property("fac").toInt()); + } + +private: + Factorial *m_fact; +}; +//! [2] + +//! [3] +int main(int argc, char **argv) +{ + QCoreApplication app(argc, argv); + Factorial factorial; + QStateMachine machine; +//! [3] + +//! [4] + QState *compute = new QState(machine.rootState()); + compute->assignProperty(&factorial, "fac", 1); + compute->assignProperty(&factorial, "x", 6); + compute->addTransition(new FactorialLoopTransition(&factorial)); +//! [4] + +//! [5] + QFinalState *done = new QFinalState(machine.rootState()); + FactorialDoneTransition *doneTransition = new FactorialDoneTransition(&factorial); + doneTransition->setTargetState(done); + compute->addTransition(doneTransition); +//! [5] + +//! [6] + machine.setInitialState(compute); + QObject::connect(&machine, SIGNAL(finished()), &app, SLOT(quit())); + machine.start(); + + return app.exec(); +} +//! [6] + +#include "main.moc" diff --git a/examples/statemachine/pingpong/main.cpp b/examples/statemachine/pingpong/main.cpp new file mode 100644 index 0000000..331627e --- /dev/null +++ b/examples/statemachine/pingpong/main.cpp @@ -0,0 +1,145 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtCore> +#include <stdio.h> +#ifdef QT_STATEMACHINE_SOLUTION +#include <qstate.h> +#include <qstatemachine.h> +#include <qabstracttransition.h> +#endif + +//! [0] +class PingEvent : public QEvent +{ +public: + PingEvent() : QEvent(QEvent::Type(QEvent::User+2)) + {} +}; + +class PongEvent : public QEvent +{ +public: + PongEvent() : QEvent(QEvent::Type(QEvent::User+3)) + {} +}; +//! [0] + +//! [1] +class Pinger : public QState +{ +public: + Pinger(QState *parent) + : QState(parent) {} + +protected: + virtual void onEntry(QEvent *) + { + machine()->postEvent(new PingEvent()); + fprintf(stdout, "ping?\n"); + } +}; +//! [1] + +//! [3] +class PongTransition : public QAbstractTransition +{ +public: + PongTransition() {} + +protected: + virtual bool eventTest(QEvent *e) { + return (e->type() == QEvent::User+3); + } + virtual void onTransition(QEvent *) + { + machine()->postEvent(new PingEvent(), 500); + fprintf(stdout, "ping?\n"); + } +}; +//! [3] + +//! [2] +class PingTransition : public QAbstractTransition +{ +public: + PingTransition() {} + +protected: + virtual bool eventTest(QEvent *e) { + return (e->type() == QEvent::User+2); + } + virtual void onTransition(QEvent *) + { + machine()->postEvent(new PongEvent(), 500); + fprintf(stdout, "pong!\n"); + } +}; +//! [2] + +//! [4] +int main(int argc, char **argv) +{ + QCoreApplication app(argc, argv); + + QStateMachine machine; + QState *group = new QState(QState::ParallelStates); + group->setObjectName("group"); +//! [4] + +//! [5] + Pinger *pinger = new Pinger(group); + pinger->setObjectName("pinger"); + pinger->addTransition(new PongTransition()); + + QState *ponger = new QState(group); + ponger->setObjectName("ponger"); + ponger->addTransition(new PingTransition()); +//! [5] + +//! [6] + machine.addState(group); + machine.setInitialState(group); + machine.start(); + + return app.exec(); +} +//! [6] diff --git a/examples/statemachine/pingpong/pingpong.pro b/examples/statemachine/pingpong/pingpong.pro new file mode 100644 index 0000000..42eab6c --- /dev/null +++ b/examples/statemachine/pingpong/pingpong.pro @@ -0,0 +1,11 @@ +QT = core +win32: CONFIG += console +mac:CONFIG -= app_bundle + +SOURCES = main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/pingpong +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS pingpong.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/pingpong +INSTALLS += target sources diff --git a/examples/statemachine/statemachine.pro b/examples/statemachine/statemachine.pro new file mode 100644 index 0000000..5074a3c --- /dev/null +++ b/examples/statemachine/statemachine.pro @@ -0,0 +1,15 @@ +TEMPLATE = subdirs +SUBDIRS = \ + eventtransitions \ + factorial \ + pingpong \ + trafficlight \ + twowaybutton \ + tankgame \ + tankgameplugins + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS statemachine.pro README +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine +INSTALLS += target sources diff --git a/examples/statemachine/tankgame/gameitem.cpp b/examples/statemachine/tankgame/gameitem.cpp new file mode 100644 index 0000000..ad8b37c --- /dev/null +++ b/examples/statemachine/tankgame/gameitem.cpp @@ -0,0 +1,129 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "gameitem.h" + +#include <QGraphicsScene> +#include <QDebug> + +GameItem::GameItem(QObject *parent) : QObject(parent) +{ +} + +QPointF GameItem::tryMove(const QPointF &requestedPosition, QLineF *collidedLine, + QGraphicsItem **collidedItem) const +{ + QLineF movementPath(pos(), requestedPosition); + + qreal cannonLength = 0.0; + { + QPointF p1 = boundingRect().center(); + QPointF p2 = QPointF(boundingRect().right() + 10.0, p1.y()); + + cannonLength = QLineF(mapToScene(p1), mapToScene(p2)).length(); + } + + movementPath.setLength(movementPath.length() + cannonLength); + + QRectF boundingRectPath(QPointF(qMin(movementPath.x1(), movementPath.x2()), qMin(movementPath.y1(), movementPath.y2())), + QPointF(qMax(movementPath.x1(), movementPath.x2()), qMax(movementPath.y1(), movementPath.y2()))); + + QList<QGraphicsItem *> itemsInRect = scene()->items(boundingRectPath, Qt::IntersectsItemBoundingRect); + + QPointF nextPoint = requestedPosition; + QRectF sceneRect = scene()->sceneRect(); + + foreach (QGraphicsItem *item, itemsInRect) { + if (item == static_cast<const QGraphicsItem *>(this)) + continue; + + QPolygonF mappedBoundingRect = item->mapToScene(item->boundingRect()); + for (int i=0; i<mappedBoundingRect.size(); ++i) { + QPointF p1 = mappedBoundingRect.at(i == 0 ? mappedBoundingRect.size()-1 : i-1); + QPointF p2 = mappedBoundingRect.at(i); + + QLineF rectLine(p1, p2); + QPointF intersectionPoint; + QLineF::IntersectType intersectType = movementPath.intersect(rectLine, &intersectionPoint); + + if (intersectType == QLineF::BoundedIntersection) { + movementPath.setP2(intersectionPoint); + movementPath.setLength(movementPath.length() - cannonLength); + nextPoint = movementPath.p2(); + + if (collidedLine != 0) + *collidedLine = rectLine; + + if (collidedItem != 0) + *collidedItem = item; + } + } + } + + + // Don't go outside of map + if (nextPoint.x() < sceneRect.left()) { + nextPoint.rx() = sceneRect.left(); + if (collidedLine != 0) + *collidedLine = QLineF(scene()->sceneRect().topLeft(), scene()->sceneRect().bottomLeft()); + } + + if (nextPoint.x() > sceneRect.right()) { + nextPoint.rx() = sceneRect.right(); + if (collidedLine != 0) + *collidedLine = QLineF(scene()->sceneRect().topRight(), scene()->sceneRect().bottomRight()); + } + + if (nextPoint.y() < sceneRect.top()) { + nextPoint.ry() = sceneRect.top(); + if (collidedLine != 0) + *collidedLine = QLineF(scene()->sceneRect().topLeft(), scene()->sceneRect().topRight()); + } + + if (nextPoint.y() > sceneRect.bottom()) { + nextPoint.ry() = sceneRect.bottom(); + if (collidedLine != 0) + *collidedLine = QLineF(scene()->sceneRect().bottomLeft(), scene()->sceneRect().bottomRight()); + } + + return nextPoint; +} + diff --git a/examples/statemachine/tankgame/gameitem.h b/examples/statemachine/tankgame/gameitem.h new file mode 100644 index 0000000..90b0a6c --- /dev/null +++ b/examples/statemachine/tankgame/gameitem.h @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GAMEITEM_H +#define GAMEITEM_H + +#include <QGraphicsItem> + +QT_BEGIN_NAMESPACE +class QLineF; +QT_END_NAMESPACE +class GameItem: public QObject, public QGraphicsItem +{ + Q_OBJECT +public: + enum { Type = UserType + 1 }; + int type() const { return Type; } + + GameItem(QObject *parent = 0); + + virtual void idle(qreal elapsed) = 0; + +protected: + QPointF tryMove(const QPointF &requestedPosition, QLineF *collidedLine = 0, + QGraphicsItem **collidedItem = 0) const; +}; + +#endif diff --git a/examples/statemachine/tankgame/gameovertransition.cpp b/examples/statemachine/tankgame/gameovertransition.cpp new file mode 100644 index 0000000..360e902 --- /dev/null +++ b/examples/statemachine/tankgame/gameovertransition.cpp @@ -0,0 +1,80 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "gameovertransition.h" +#include "tankitem.h" + +#include <QSignalEvent> +#include <QSignalMapper> + +GameOverTransition::GameOverTransition(QAbstractState *targetState) + : QSignalTransition(new QSignalMapper(), SIGNAL(mapped(QObject*))) +{ + setTargetState(targetState); + + QSignalMapper *mapper = qobject_cast<QSignalMapper *>(senderObject()); + mapper->setParent(this); +} + +void GameOverTransition::addTankItem(TankItem *tankItem) +{ + m_tankItems.append(tankItem); + + QSignalMapper *mapper = qobject_cast<QSignalMapper *>(senderObject()); + mapper->setMapping(tankItem, tankItem); + connect(tankItem, SIGNAL(aboutToBeDestroyed()), mapper, SLOT(map())); +} + +bool GameOverTransition::eventTest(QEvent *e) +{ + bool ret = QSignalTransition::eventTest(e); + + if (ret) { + QSignalEvent *signalEvent = static_cast<QSignalEvent *>(e); + QObject *sender = qvariant_cast<QObject *>(signalEvent->arguments().at(0)); + TankItem *tankItem = qobject_cast<TankItem *>(sender); + m_tankItems.removeAll(tankItem); + + return m_tankItems.size() <= 1; + } else { + return false; + } +} diff --git a/examples/statemachine/tankgame/gameovertransition.h b/examples/statemachine/tankgame/gameovertransition.h new file mode 100644 index 0000000..5e99a75 --- /dev/null +++ b/examples/statemachine/tankgame/gameovertransition.h @@ -0,0 +1,63 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef GAMEOVERTRANSITION_H +#define GAMEOVERTRANSITION_H + +#include <QSignalTransition> + +class TankItem; +class GameOverTransition: public QSignalTransition +{ + Q_OBJECT +public: + GameOverTransition(QAbstractState *targetState); + + void addTankItem(TankItem *tankItem); + +protected: + bool eventTest(QEvent *event); + +private: + QList<TankItem *> m_tankItems; +}; + +#endif diff --git a/examples/statemachine/tankgame/main.cpp b/examples/statemachine/tankgame/main.cpp new file mode 100644 index 0000000..185ad68 --- /dev/null +++ b/examples/statemachine/tankgame/main.cpp @@ -0,0 +1,53 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QApplication> +#include "mainwindow.h" + +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + + MainWindow mainWindow; + mainWindow.show(); + + return app.exec(); +} diff --git a/examples/statemachine/tankgame/mainwindow.cpp b/examples/statemachine/tankgame/mainwindow.cpp new file mode 100644 index 0000000..46e0db3 --- /dev/null +++ b/examples/statemachine/tankgame/mainwindow.cpp @@ -0,0 +1,342 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "mainwindow.h" +#include "tankitem.h" +#include "rocketitem.h" +#include "plugin.h" +#include "gameovertransition.h" + +#include <QStateMachine> +#include <QGraphicsView> +#include <QAction> +#include <QMenuBar> +#include <QState> +#include <QHistoryState> +#include <QTimer> +#include <QFileDialog> +#include <QPluginLoader> +#include <QApplication> +#include <QInputDialog> +#include <QMessageBox> + +MainWindow::MainWindow(QWidget *parent) + : QMainWindow(parent), m_scene(0), m_machine(0), m_runningState(0), m_started(false) +{ + init(); +} + +MainWindow::~MainWindow() +{ +} + +void MainWindow::addWall(const QRectF &wall) +{ + QGraphicsRectItem *item = new QGraphicsRectItem; + item->setRect(wall); + item->setBrush(Qt::darkGreen); + item->setPen(QPen(Qt::black, 0)); + + m_scene->addItem(item); +} + +void MainWindow::init() +{ + setWindowTitle("Pluggable Tank Game"); + + QGraphicsView *view = new QGraphicsView(this); + view->setRenderHints(QPainter::Antialiasing); + setCentralWidget(view); + + m_scene = new QGraphicsScene(this); + view->setScene(m_scene); + + QRectF sceneRect = QRectF(-200.0, -200.0, 400.0, 400.0); + m_scene->setSceneRect(sceneRect); + + { + TankItem *item = new TankItem(this); + + item->setPos(m_scene->sceneRect().topLeft() + QPointF(30.0, 30.0)); + item->setDirection(45.0); + item->setColor(Qt::red); + + m_spawns.append(item); + } + + { + TankItem *item = new TankItem(this); + + item->setPos(m_scene->sceneRect().topRight() + QPointF(-30.0, 30.0)); + item->setDirection(135.0); + item->setColor(Qt::green); + + m_spawns.append(item); + } + + { + TankItem *item = new TankItem(this); + + item->setPos(m_scene->sceneRect().bottomRight() + QPointF(-30.0, -30.0)); + item->setDirection(225.0); + item->setColor(Qt::blue); + + m_spawns.append(item); + } + + { + TankItem *item = new TankItem(this); + + item->setPos(m_scene->sceneRect().bottomLeft() + QPointF(30.0, -30.0)); + item->setDirection(315.0); + item->setColor(Qt::yellow); + + m_spawns.append(item); + } + + QPointF centerOfMap = sceneRect.center(); + + addWall(QRectF(centerOfMap + QPointF(-50.0, -60.0), centerOfMap + QPointF(50.0, -50.0))); + addWall(QRectF(centerOfMap - QPointF(-50.0, -60.0), centerOfMap - QPointF(50.0, -50.0))); + addWall(QRectF(centerOfMap + QPointF(-50.0, -50.0), centerOfMap + QPointF(-40.0, 50.0))); + addWall(QRectF(centerOfMap - QPointF(-50.0, -50.0), centerOfMap - QPointF(-40.0, 50.0))); + + addWall(QRectF(sceneRect.topLeft() + QPointF(sceneRect.width() / 2.0 - 5.0, -10.0), + sceneRect.topLeft() + QPointF(sceneRect.width() / 2.0 + 5.0, 100.0))); + addWall(QRectF(sceneRect.bottomLeft() + QPointF(sceneRect.width() / 2.0 - 5.0, 10.0), + sceneRect.bottomLeft() + QPointF(sceneRect.width() / 2.0 + 5.0, -100.0))); + addWall(QRectF(sceneRect.topLeft() + QPointF(-10.0, sceneRect.height() / 2.0 - 5.0), + sceneRect.topLeft() + QPointF(100.0, sceneRect.height() / 2.0 + 5.0))); + addWall(QRectF(sceneRect.topRight() + QPointF(10.0, sceneRect.height() / 2.0 - 5.0), + sceneRect.topRight() + QPointF(-100.0, sceneRect.height() / 2.0 + 5.0))); + + + QAction *addTankAction = menuBar()->addAction("&Add tank"); + QAction *runGameAction = menuBar()->addAction("&Run game"); + runGameAction->setObjectName("runGameAction"); + QAction *stopGameAction = menuBar()->addAction("&Stop game"); + menuBar()->addSeparator(); + QAction *quitAction = menuBar()->addAction("&Quit"); + + connect(addTankAction, SIGNAL(triggered()), this, SLOT(addTank())); + connect(quitAction, SIGNAL(triggered()), this, SLOT(close())); + + m_machine = new QStateMachine(this); + QState *stoppedState = new QState(m_machine->rootState()); + stoppedState->setObjectName("stoppedState"); + stoppedState->assignProperty(runGameAction, "enabled", true); + stoppedState->assignProperty(stopGameAction, "enabled", false); + stoppedState->assignProperty(this, "started", false); + m_machine->setInitialState(stoppedState); + +//! [5] + QState *spawnsAvailable = new QState(stoppedState); + spawnsAvailable->assignProperty(addTankAction, "enabled", true); + + QState *noSpawnsAvailable = new QState(stoppedState); + noSpawnsAvailable->assignProperty(addTankAction, "enabled", false); +//! [5] + spawnsAvailable->setObjectName("spawnsAvailable"); + noSpawnsAvailable->setObjectName("noSpawnsAvailable"); + + spawnsAvailable->addTransition(this, SIGNAL(mapFull()), noSpawnsAvailable); + +//! [3] + QHistoryState *hs = new QHistoryState(stoppedState); + hs->setDefaultState(spawnsAvailable); +//! [3] + hs->setObjectName("hs"); + + stoppedState->setInitialState(hs); + +//! [0] + m_runningState = new QState(QState::ParallelStates, m_machine->rootState()); +//! [0] + m_runningState->setObjectName("runningState"); + m_runningState->assignProperty(addTankAction, "enabled", false); + m_runningState->assignProperty(runGameAction, "enabled", false); + m_runningState->assignProperty(stopGameAction, "enabled", true); + + QState *gameOverState = new QState(m_machine->rootState()); + gameOverState->setObjectName("gameOverState"); + gameOverState->assignProperty(stopGameAction, "enabled", false); + connect(gameOverState, SIGNAL(entered()), this, SLOT(gameOver())); + + stoppedState->addTransition(runGameAction, SIGNAL(triggered()), m_runningState); + m_runningState->addTransition(stopGameAction, SIGNAL(triggered()), stoppedState); + + m_gameOverTransition = new GameOverTransition(gameOverState); + m_runningState->addTransition(m_gameOverTransition); + + QTimer *timer = new QTimer(this); + timer->setInterval(100); + connect(timer, SIGNAL(timeout()), this, SLOT(runStep())); + connect(m_runningState, SIGNAL(entered()), timer, SLOT(start())); + connect(m_runningState, SIGNAL(exited()), timer, SLOT(stop())); + + m_machine->start(); + m_time.start(); +} + +void MainWindow::runStep() +{ + if (!m_started) { + m_time.restart(); + m_started = true; + } else { + int elapsed = m_time.elapsed(); + if (elapsed > 0) { + m_time.restart(); + qreal elapsedSecs = elapsed / 1000.0; + QList<QGraphicsItem *> items = m_scene->items(); + foreach (QGraphicsItem *item, items) { + if (GameItem *gameItem = qgraphicsitem_cast<GameItem *>(item)) + gameItem->idle(elapsedSecs); + } + } + } +} + +void MainWindow::gameOver() +{ + QList<QGraphicsItem *> items = m_scene->items(); + + TankItem *lastTankStanding = 0; + foreach (QGraphicsItem *item, items) { + if (GameItem *gameItem = qgraphicsitem_cast<GameItem *>(item)) { + if ((lastTankStanding = qobject_cast<TankItem *>(gameItem)) != 0) + break; + } + } + + QMessageBox::information(this, "Game over!", + QString::fromLatin1("The tank played by '%1' has won!").arg(lastTankStanding->objectName())); +} + +void MainWindow::addRocket() +{ + TankItem *tankItem = qobject_cast<TankItem *>(sender()); + if (tankItem != 0) { + RocketItem *rocketItem = new RocketItem; + + QPointF s = tankItem->mapToScene(QPointF(tankItem->boundingRect().right() + 10.0, + tankItem->boundingRect().center().y())); + rocketItem->setPos(s); + rocketItem->setDirection(tankItem->direction()); + m_scene->addItem(rocketItem); + } +} + +void MainWindow::addTank() +{ + Q_ASSERT(!m_spawns.isEmpty()); + + QDir pluginsDir(qApp->applicationDirPath()); +#if defined(Q_OS_WIN) + if (pluginsDir.dirName().toLower() == "debug" || pluginsDir.dirName().toLower() == "release") + pluginsDir.cdUp(); +#elif defined(Q_OS_MAC) + if (pluginsDir.dirName() == "MacOS") { + pluginsDir.cdUp(); + pluginsDir.cdUp(); + pluginsDir.cdUp(); + } +#endif + + pluginsDir.cd("plugins"); + + QStringList itemNames; + QList<Plugin *> items; + foreach (QString fileName, pluginsDir.entryList(QDir::Files)) { + QPluginLoader loader(pluginsDir.absoluteFilePath(fileName)); + QObject *possiblePlugin = loader.instance(); + if (Plugin *plugin = qobject_cast<Plugin *>(possiblePlugin)) { + QString objectName = possiblePlugin->objectName(); + if (objectName.isEmpty()) + objectName = fileName; + + itemNames.append(objectName); + items.append(plugin); + } + } + + if (items.isEmpty()) { + QMessageBox::information(this, "No tank types found", "Please build the errorstateplugins directory"); + return; + } + + bool ok; +//! [1] + QString selectedName = QInputDialog::getItem(this, "Select a tank type", "Tank types", + itemNames, 0, false, &ok); +//! [1] + + if (ok && !selectedName.isEmpty()) { + int idx = itemNames.indexOf(selectedName); + if (Plugin *plugin = idx >= 0 ? items.at(idx) : 0) { + TankItem *tankItem = m_spawns.takeLast(); + tankItem->setObjectName(selectedName); + tankItem->setToolTip(selectedName); + m_scene->addItem(tankItem); + connect(tankItem, SIGNAL(cannonFired()), this, SLOT(addRocket())); + if (m_spawns.isEmpty()) + emit mapFull(); + + m_gameOverTransition->addTankItem(tankItem); + + QState *region = new QState(m_runningState); + region->setObjectName(QString::fromLatin1("region%1").arg(m_spawns.size())); +//! [2] + QState *pluginState = plugin->create(region, tankItem); +//! [2] + region->setInitialState(pluginState); + + // If the plugin has an error it is disabled +//! [4] + QState *errorState = new QState(region); + errorState->setObjectName(QString::fromLatin1("errorState%1").arg(m_spawns.size())); + errorState->assignProperty(tankItem, "enabled", false); + pluginState->setErrorState(errorState); +//! [4] + } + } +} + diff --git a/examples/statemachine/tankgame/mainwindow.h b/examples/statemachine/tankgame/mainwindow.h new file mode 100644 index 0000000..4ae8f7a --- /dev/null +++ b/examples/statemachine/tankgame/mainwindow.h @@ -0,0 +1,93 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef MAINWINDOW_H +#define MAINWINDOW_H + +#include <QMainWindow> +#include <QTime> + +QT_BEGIN_NAMESPACE +class QGraphicsScene; +class QStateMachine; +class QState; +QT_END_NAMESPACE +class GameOverTransition; +class TankItem; + +class MainWindow: public QMainWindow +{ + Q_OBJECT + Q_PROPERTY(bool started READ started WRITE setStarted) +public: + MainWindow(QWidget *parent = 0); + ~MainWindow(); + + void setStarted(bool b) { m_started = b; } + bool started() const { return m_started; } + +public slots: + void addTank(); + void addRocket(); + void runStep(); + void gameOver(); + +signals: + void mapFull(); + +private: + void init(); + void addWall(const QRectF &wall); + + QGraphicsScene *m_scene; + + QStateMachine *m_machine; + QState *m_runningState; + GameOverTransition *m_gameOverTransition; + + QList<TankItem *> m_spawns; + QTime m_time; + + bool m_started : 1; +}; + +#endif + diff --git a/examples/statemachine/tankgame/plugin.h b/examples/statemachine/tankgame/plugin.h new file mode 100644 index 0000000..ddd10b7 --- /dev/null +++ b/examples/statemachine/tankgame/plugin.h @@ -0,0 +1,62 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef PLUGIN_H +#define PLUGIN_H + +#include <QtPlugin> + +QT_BEGIN_NAMESPACE +class QState; +QT_END_NAMESPACE +class Plugin +{ +public: + virtual ~Plugin() {} + + virtual QState *create(QState *parentState, QObject *tank) = 0; +}; + +QT_BEGIN_NAMESPACE +Q_DECLARE_INTERFACE(Plugin, "TankPlugin") +QT_END_NAMESPACE + +#endif diff --git a/examples/statemachine/tankgame/rocketitem.cpp b/examples/statemachine/tankgame/rocketitem.cpp new file mode 100644 index 0000000..3ace8e8 --- /dev/null +++ b/examples/statemachine/tankgame/rocketitem.cpp @@ -0,0 +1,101 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "rocketitem.h" +#include "tankitem.h" + +#include <QPainter> +#include <QGraphicsScene> + +#include <math.h> + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +RocketItem::RocketItem(QObject *parent) + : GameItem(parent), m_direction(0.0), m_distance(300.0) +{ +} + +QRectF RocketItem::boundingRect() const +{ + return QRectF(-1.0, -1.0, 2.0, 2.0); +} + +void RocketItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) +{ + painter->setBrush(Qt::black); + painter->drawEllipse(boundingRect()); +} + +void RocketItem::idle(qreal elapsed) +{ + qreal dist = elapsed * speed(); + + m_distance -= dist; + if (m_distance < 0.0) { + scene()->removeItem(this); + delete this; + return; + } + + qreal a = m_direction * M_PI / 180.0; + + qreal yd = dist * sin(a); + qreal xd = dist * sin(M_PI / 2.0 - a); + + QPointF requestedPosition = pos() + QPointF(xd, yd); + QGraphicsItem *collidedItem = 0; + QPointF nextPosition = tryMove(requestedPosition, 0, &collidedItem); + if (requestedPosition == nextPosition) { + setPos(nextPosition); + } else { + if (GameItem *gameItem = qgraphicsitem_cast<GameItem *>(collidedItem)) { + TankItem *tankItem = qobject_cast<TankItem *>(gameItem); + if (tankItem != 0) + tankItem->hitByRocket(); + } + + scene()->removeItem(this); + delete this; + } +} diff --git a/examples/statemachine/tankgame/rocketitem.h b/examples/statemachine/tankgame/rocketitem.h new file mode 100644 index 0000000..31146a6 --- /dev/null +++ b/examples/statemachine/tankgame/rocketitem.h @@ -0,0 +1,66 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef ROCKETITEM_H +#define ROCKETITEM_H + +#include "gameitem.h" + +class RocketItem: public GameItem +{ + Q_OBJECT +public: + RocketItem(QObject *parent = 0); + + virtual void idle(qreal elapsed); + qreal speed() const { return 100.0; } + void setDirection(qreal direction) { m_direction = direction; } + +protected: + virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); + QRectF boundingRect() const; + +private: + qreal m_direction; + qreal m_distance; +}; + +#endif diff --git a/examples/statemachine/tankgame/tankgame.pro b/examples/statemachine/tankgame/tankgame.pro new file mode 100644 index 0000000..59415be --- /dev/null +++ b/examples/statemachine/tankgame/tankgame.pro @@ -0,0 +1,19 @@ +HEADERS += mainwindow.h \ + plugin.h \ + tankitem.h \ + rocketitem.h \ + gameitem.h \ + gameovertransition.h +SOURCES += main.cpp \ + mainwindow.cpp \ + tankitem.cpp \ + rocketitem.cpp \ + gameitem.cpp \ + gameovertransition.cpp +CONFIG += console + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgame +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS tankgame.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgame +INSTALLS += target sources diff --git a/examples/statemachine/tankgame/tankitem.cpp b/examples/statemachine/tankgame/tankitem.cpp new file mode 100644 index 0000000..393d65f --- /dev/null +++ b/examples/statemachine/tankgame/tankitem.cpp @@ -0,0 +1,302 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "tankitem.h" + +#include <QPainter> +#include <QGraphicsScene> +#include <QDebug> + +#include <math.h> + +#ifndef M_PI +#define M_PI 3.14159265358979323846 +#endif + +class Action +{ +public: + Action(TankItem *item) : m_item(item) + { + } + + TankItem *item() const { return m_item; } + void setItem(TankItem *item) { m_item = item; } + + virtual bool apply(qreal timeDelta) = 0; + +private: + TankItem *m_item; +}; + +class MoveAction: public Action +{ +public: + MoveAction(TankItem *item, qreal distance) + : Action(item), m_distance(distance) + { + m_reverse = m_distance < 0.0; + } + + bool apply(qreal timeDelta) + { + qreal dist = timeDelta * item()->speed() * (m_reverse ? -1.0 : 1.0); + + bool done = false; + if (qAbs(m_distance) < qAbs(dist)) { + done = true; + dist = m_distance; + } + m_distance -= dist; + + qreal a = item()->direction() * M_PI / 180.0; + + qreal yd = dist * sin(a); + qreal xd = dist * sin(M_PI / 2.0 - a); + + item()->setPos(item()->pos() + QPointF(xd, yd)); + return !done; + } + +private: + qreal m_distance; + bool m_reverse; +}; + +class TurnAction: public Action +{ +public: + TurnAction(TankItem *item, qreal distance) + : Action(item), m_distance(distance) + { + m_reverse = m_distance < 0.0; + } + + bool apply(qreal timeDelta) + { + qreal dist = timeDelta * item()->angularSpeed() * (m_reverse ? -1.0 : 1.0); + bool done = false; + if (qAbs(m_distance) < qAbs(dist)) { + done = true; + dist = m_distance; + } + m_distance -= dist; + + item()->setDirection(item()->direction() + dist); + return !done; + } + +private: + qreal m_distance; + bool m_reverse; +}; + +TankItem::TankItem(QObject *parent) + : GameItem(parent), m_currentAction(0), m_currentDirection(0.0), m_enabled(true) +{ + connect(this, SIGNAL(cannonFired()), this, SIGNAL(actionCompleted())); +} + +void TankItem::idle(qreal elapsed) +{ + if (m_enabled) { + if (m_currentAction != 0) { + if (!m_currentAction->apply(elapsed)) { + setAction(0); + emit actionCompleted(); + } + + QGraphicsItem *item = 0; + qreal distance = distanceToObstacle(&item); + if (TankItem *tankItem = qgraphicsitem_cast<TankItem *>(item)) + emit tankSpotted(tankItem->direction(), distance); + } + } +} + +void TankItem::hitByRocket() +{ + emit aboutToBeDestroyed(); + deleteLater(); +} + +void TankItem::setAction(Action *newAction) +{ + if (m_currentAction != 0) + delete m_currentAction; + + m_currentAction = newAction; +} + +void TankItem::fireCannon() +{ + emit cannonFired(); +} + +void TankItem::moveForwards(qreal length) +{ + setAction(new MoveAction(this, length)); +} + +void TankItem::moveBackwards(qreal length) +{ + setAction(new MoveAction(this, -length)); +} + +void TankItem::turn(qreal degrees) +{ + setAction(new TurnAction(this, degrees)); +} + +void TankItem::turnTo(qreal degrees) +{ + setAction(new TurnAction(this, degrees - direction())); +} + +void TankItem::stop() +{ + setAction(0); +} + +QVariant TankItem::itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value) +{ + if (change == ItemPositionChange && scene()) { + QPointF requestedPosition = value.toPointF(); + QLineF collidedLine; + QPointF nextPoint = tryMove(requestedPosition, &collidedLine); + if (nextPoint != requestedPosition) + emit collision(collidedLine); + return nextPoint; + } else { + return QGraphicsItem::itemChange(change, value); + } +} + + +void TankItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *, QWidget *) +{ + QRectF brect = boundingRect(); + + painter->setBrush(m_color); + painter->setPen(Qt::black); + + // body + painter->drawRect(brect.adjusted(0.0, 4.0, -2.0, -4.0)); + + // cannon + QRectF cannonBase = brect.adjusted(10.0, 6.0, -12.0, -6.0); + painter->drawEllipse(cannonBase); + + painter->drawRect(QRectF(QPointF(cannonBase.center().x(), cannonBase.center().y() - 2.0), + QPointF(brect.right(), cannonBase.center().y() + 2.0))); + + // left track + painter->setBrush(QBrush(Qt::black, Qt::VerPattern)); + QRectF leftTrackRect = QRectF(brect.topLeft(), QPointF(brect.right() - 2.0, brect.top() + 4.0)); + painter->fillRect(leftTrackRect, Qt::darkYellow); + painter->drawRect(leftTrackRect); + + // right track + QRectF rightTrackRect = QRectF(QPointF(brect.left(), brect.bottom() - 4.0), + QPointF(brect.right() - 2.0, brect.bottom())); + painter->fillRect(rightTrackRect, Qt::darkYellow); + painter->drawRect(rightTrackRect); + + if (!m_enabled) { + painter->setPen(QPen(Qt::red, 5)); + + painter->drawEllipse(brect); + + QPainterPath path; + path.addEllipse(brect); + painter->setClipPath(path); + painter->drawLine(brect.topRight(), brect.bottomLeft()); + } +} + +QRectF TankItem::boundingRect() const +{ + return QRectF(-20.0, -10.0, 40.0, 20.0); +} + +qreal TankItem::direction() const +{ + return m_currentDirection; +} + +void TankItem::setDirection(qreal newDirection) +{ + int fullRotations = int(newDirection) / 360; + newDirection -= fullRotations * 360.0; + + qreal diff = newDirection - m_currentDirection; + m_currentDirection = newDirection; + rotate(diff); +} + +qreal TankItem::distanceToObstacle(QGraphicsItem **obstacle) const +{ + qreal dist = sqrt(pow(scene()->sceneRect().width(), 2) + pow(scene()->sceneRect().height(), 2)); + + qreal a = m_currentDirection * M_PI / 180.0; + + qreal yd = dist * sin(a); + qreal xd = dist * sin(M_PI / 2.0 - a); + + QPointF requestedPosition = pos() + QPointF(xd, yd); + QGraphicsItem *collidedItem = 0; + QPointF nextPosition = tryMove(requestedPosition, 0, &collidedItem); + if (collidedItem != 0) { + if (obstacle != 0) + *obstacle = collidedItem; + + QPointF d = nextPosition - pos(); + return sqrt(pow(d.x(), 2) + pow(d.y(), 2)); + } else { + return 0.0; + } +} + +qreal TankItem::distanceToObstacle() const +{ + return distanceToObstacle(0); +} + diff --git a/examples/statemachine/tankgame/tankitem.h b/examples/statemachine/tankgame/tankitem.h new file mode 100644 index 0000000..942fca8 --- /dev/null +++ b/examples/statemachine/tankgame/tankitem.h @@ -0,0 +1,109 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef TANKITEM_H +#define TANKITEM_H + +#include "gameitem.h" + +#include <QColor> + +class Action; +class TankItem: public GameItem +{ + Q_OBJECT + Q_PROPERTY(bool enabled READ enabled WRITE setEnabled) + Q_PROPERTY(qreal direction READ direction WRITE turnTo) + Q_PROPERTY(qreal distanceToObstacle READ distanceToObstacle) +public: + TankItem(QObject *parent = 0); + + void setColor(const QColor &color) { m_color = color; } + QColor color() const { return m_color; } + + void idle(qreal elapsed); + void setDirection(qreal newDirection); + + qreal speed() const { return 90.0; } + qreal angularSpeed() const { return 90.0; } + + QRectF boundingRect() const; + + void hitByRocket(); + + void setEnabled(bool b) { m_enabled = b; } + bool enabled() const { return m_enabled; } + + qreal direction() const; + qreal distanceToObstacle() const; + qreal distanceToObstacle(QGraphicsItem **item) const; + +//! [0] +signals: + void tankSpotted(qreal direction, qreal distance); + void collision(const QLineF &collidedLine); + void actionCompleted(); + void cannonFired(); + void aboutToBeDestroyed(); + +public slots: + void moveForwards(qreal length = 10.0); + void moveBackwards(qreal length = 10.0); + void turn(qreal degrees = 30.0); + void turnTo(qreal degrees = 0.0); + void stop(); + void fireCannon(); +//! [0] + +protected: + virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget); + QVariant itemChange(QGraphicsItem::GraphicsItemChange change, const QVariant &value); + +private: + void setAction(Action *newAction); + + Action *m_currentAction; + qreal m_currentDirection; + QColor m_color; + bool m_enabled; +}; + +#endif diff --git a/examples/statemachine/tankgameplugins/random_ai/random_ai.pro b/examples/statemachine/tankgameplugins/random_ai/random_ai.pro new file mode 100644 index 0000000..5bc0b26 --- /dev/null +++ b/examples/statemachine/tankgameplugins/random_ai/random_ai.pro @@ -0,0 +1,13 @@ +TEMPLATE = lib +CONFIG += plugin +INCLUDEPATH += ../.. +HEADERS = random_ai_plugin.h +SOURCES = random_ai_plugin.cpp +TARGET = $$qtLibraryTarget(random_ai) +DESTDIR = ../../tankgame/plugins + +#! [0] +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgame/plugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS random_ai.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgameplugins/random_ai
\ No newline at end of file diff --git a/examples/statemachine/tankgameplugins/random_ai/random_ai_plugin.cpp b/examples/statemachine/tankgameplugins/random_ai/random_ai_plugin.cpp new file mode 100644 index 0000000..d360de9 --- /dev/null +++ b/examples/statemachine/tankgameplugins/random_ai/random_ai_plugin.cpp @@ -0,0 +1,79 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "random_ai_plugin.h" + +#include <QState> +#include <QtPlugin> + +#include <time.h> + +QState *RandomAiPlugin::create(QState *parentState, QObject *tank) +{ + qsrand(uint(time(NULL))); + + QState *topLevel = new QState(parentState); + + QState *selectNextActionState = new SelectActionState(topLevel); + topLevel->setInitialState(selectNextActionState); + + QState *fireState = new RandomDistanceState(topLevel); + connect(fireState, SIGNAL(distanceComputed(qreal)), tank, SLOT(fireCannon())); + selectNextActionState->addTransition(selectNextActionState, SIGNAL(fireSelected()), fireState); + + QState *moveForwardsState = new RandomDistanceState(topLevel); + connect(moveForwardsState, SIGNAL(distanceComputed(qreal)), tank, SLOT(moveForwards(qreal))); + selectNextActionState->addTransition(selectNextActionState, SIGNAL(moveForwardsSelected()), moveForwardsState); + + QState *moveBackwardsState = new RandomDistanceState(topLevel); + connect(moveBackwardsState, SIGNAL(distanceComputed(qreal)), tank, SLOT(moveBackwards(qreal))); + selectNextActionState->addTransition(selectNextActionState, SIGNAL(moveBackwardsSelected()), moveBackwardsState); + + QState *turnState = new RandomDistanceState(topLevel); + connect(turnState, SIGNAL(distanceComputed(qreal)), tank, SLOT(turn(qreal))); + selectNextActionState->addTransition(selectNextActionState, SIGNAL(turnSelected()), turnState); + + topLevel->addTransition(tank, SIGNAL(actionCompleted()), selectNextActionState); + + return topLevel; +} + +Q_EXPORT_PLUGIN2(random_ai, RandomAiPlugin) diff --git a/examples/statemachine/tankgameplugins/random_ai/random_ai_plugin.h b/examples/statemachine/tankgameplugins/random_ai/random_ai_plugin.h new file mode 100644 index 0000000..9faeeac --- /dev/null +++ b/examples/statemachine/tankgameplugins/random_ai/random_ai_plugin.h @@ -0,0 +1,105 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef RANDOM_AI_PLUGIN_H +#define RANDOM_AI_PLUGIN_H + +#include <QObject> +#include <QState> + +#include <tankgame/plugin.h> + +class SelectActionState: public QState +{ + Q_OBJECT +public: + SelectActionState(QState *parent = 0) : QState(parent) + { + } + +signals: + void fireSelected(); + void moveForwardsSelected(); + void moveBackwardsSelected(); + void turnSelected(); + +protected: + void onEntry(QEvent *) + { + int rand = qrand() % 4; + switch (rand) { + case 0: emit fireSelected(); break; + case 1: emit moveForwardsSelected(); break; + case 2: emit moveBackwardsSelected(); break; + case 3: emit turnSelected(); break; + }; + } +}; + +class RandomDistanceState: public QState +{ + Q_OBJECT +public: + RandomDistanceState(QState *parent = 0) : QState(parent) + { + } + +signals: + void distanceComputed(qreal distance); + +protected: + void onEntry(QEvent *) + { + emit distanceComputed(qreal(qrand() % 180)); + } +}; + +class RandomAiPlugin: public QObject, public Plugin +{ + Q_OBJECT + Q_INTERFACES(Plugin) +public: + RandomAiPlugin() { setObjectName("Random"); } + + virtual QState *create(QState *parentState, QObject *tank); +}; + +#endif // RANDOM_AI_PLUGIN_H diff --git a/examples/statemachine/tankgameplugins/seek_ai/seek_ai.cpp b/examples/statemachine/tankgameplugins/seek_ai/seek_ai.cpp new file mode 100644 index 0000000..6aae015 --- /dev/null +++ b/examples/statemachine/tankgameplugins/seek_ai/seek_ai.cpp @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "seek_ai.h" + +QState *SeekAi::create(QState *parentState, QObject *tank) +{ + QState *topLevel = new QState(parentState); + topLevel->setObjectName("topLevel"); + + QState *seek = new QState(topLevel); + seek->setObjectName("seek"); + topLevel->setInitialState(seek); + + QState *lookForNearestWall = new SearchState(tank, seek); + lookForNearestWall->setObjectName("lookForNearestWall"); + seek->setInitialState(lookForNearestWall); + + QState *driveToFirstObstacle = new QState(seek); + driveToFirstObstacle->setObjectName("driveToFirstObstacle"); + lookForNearestWall->addTransition(lookForNearestWall, SIGNAL(nearestObstacleStraightAhead()), + driveToFirstObstacle); + + QState *drive = new QState(driveToFirstObstacle); + drive->setObjectName("drive"); + driveToFirstObstacle->setInitialState(drive); + connect(drive, SIGNAL(entered()), tank, SLOT(moveForwards())); + connect(drive, SIGNAL(exited()), tank, SLOT(stop())); + + // Go in loop + QState *finishedDriving = new QState(driveToFirstObstacle); + finishedDriving->setObjectName("finishedDriving"); + drive->addTransition(tank, SIGNAL(actionCompleted()), finishedDriving); + finishedDriving->addTransition(drive); + + QState *turnTo = new QState(seek); + turnTo->setObjectName("turnTo"); + driveToFirstObstacle->addTransition(new CollisionTransition(tank, turnTo)); + + turnTo->addTransition(tank, SIGNAL(actionCompleted()), driveToFirstObstacle); + + ChaseState *chase = new ChaseState(tank, topLevel); + chase->setObjectName("chase"); + seek->addTransition(new TankSpottedTransition(tank, chase)); + chase->addTransition(chase, SIGNAL(finished()), driveToFirstObstacle); + chase->addTransition(new TankSpottedTransition(tank, chase)); + + return topLevel; +} + +Q_EXPORT_PLUGIN2(seek_ai, SeekAi) diff --git a/examples/statemachine/tankgameplugins/seek_ai/seek_ai.h b/examples/statemachine/tankgameplugins/seek_ai/seek_ai.h new file mode 100644 index 0000000..e44ad07 --- /dev/null +++ b/examples/statemachine/tankgameplugins/seek_ai/seek_ai.h @@ -0,0 +1,249 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SEEK_AI_H +#define SEEK_AI_H + +#include <tankgame/plugin.h> + +#include <QState> +#include <QFinalState> +#include <QSignalTransition> +#include <QSignalEvent> +#include <QVariant> +#include <QLineF> +#include <QDebug> + +class SearchState: public QState +{ + Q_OBJECT +public: + SearchState(QObject *tank, QState *parentState = 0) + : QState(parentState), + m_tank(tank), + m_distanceToTurn(360.0), + m_nearestDistance(-1.0), + m_directionOfNearestObstacle(0.0) + { + } + +public slots: + void turnAlittle() + { + qreal dist = m_tank->property("distanceToObstacle").toDouble(); + + if (m_nearestDistance < 0.0 || dist < m_nearestDistance) { + m_nearestDistance = dist; + m_directionOfNearestObstacle = m_tank->property("direction").toDouble(); + } + + m_distanceToTurn -= 10.0; + if (m_distanceToTurn < 0.0) { + disconnect(m_tank, SIGNAL(actionCompleted()), this, SLOT(turnAlittle())); + connect(m_tank, SIGNAL(actionCompleted()), this, SIGNAL(nearestObstacleStraightAhead())); + m_tank->setProperty("direction", m_directionOfNearestObstacle); + } + + qreal currentDirection = m_tank->property("direction").toDouble(); + m_tank->setProperty("direction", currentDirection + 10.0); + } + +signals: + void nearestObstacleStraightAhead(); + +protected: + void onEntry(QEvent *) + { + connect(m_tank, SIGNAL(actionCompleted()), this, SLOT(turnAlittle())); + turnAlittle(); + } + + void onExit(QEvent *) + { + disconnect(m_tank, SIGNAL(actionCompleted()), this, SLOT(turnAlittle())); + disconnect(m_tank, SIGNAL(actionCompleted()), this, SLOT(nearestObstacleStraightAhead())); + } + +private: + QObject *m_tank; + + qreal m_distanceToTurn; + qreal m_nearestDistance; + qreal m_directionOfNearestObstacle; +}; + +class CollisionTransition: public QSignalTransition +{ +public: + CollisionTransition(QObject *tank, QState *turnTo) + : QSignalTransition(tank, SIGNAL(collision(QLineF))), + m_tank(tank), + m_turnTo(turnTo) + { + setTargetState(turnTo); + } + +protected: + bool eventTest(QEvent *event) + { + bool b = QSignalTransition::eventTest(event); + if (b) { + QSignalEvent *se = static_cast<QSignalEvent *>(event); + m_lastLine = se->arguments().at(0).toLineF(); + } + return b; + } + + void onTransition(QEvent *) + { + qreal angleOfWall = m_lastLine.angle(); + + qreal newDirection; + if (qrand() % 2 == 0) + newDirection = angleOfWall; + else + newDirection = angleOfWall - 180.0; + + m_turnTo->assignProperty(m_tank, "direction", newDirection); + } + +private: + QLineF m_lastLine; + QObject *m_tank; + QState *m_turnTo; +}; + +class ChaseState: public QState +{ + class GoToLocationState: public QState + { + public: + GoToLocationState(QObject *tank, QState *parentState = 0) + : QState(parentState), m_tank(tank), m_distance(0.0) + { + } + + void setDistance(qreal distance) { m_distance = distance; } + + protected: + void onEntry() + { + QMetaObject::invokeMethod(m_tank, "moveForwards", Q_ARG(qreal, m_distance)); + } + + private: + QObject *m_tank; + qreal m_distance; + }; + +public: + ChaseState(QObject *tank, QState *parentState = 0) : QState(parentState), m_tank(tank) + { + QState *fireCannon = new QState(this); + fireCannon->setObjectName("fireCannon"); + connect(fireCannon, SIGNAL(entered()), tank, SLOT(fireCannon())); + setInitialState(fireCannon); + + m_goToLocation = new GoToLocationState(tank, this); + m_goToLocation->setObjectName("goToLocation"); + fireCannon->addTransition(tank, SIGNAL(actionCompleted()), m_goToLocation); + + m_turnToDirection = new QState(this); + m_turnToDirection->setObjectName("turnToDirection"); + m_goToLocation->addTransition(tank, SIGNAL(actionCompleted()), m_turnToDirection); + + QFinalState *finalState = new QFinalState(this); + finalState->setObjectName("finalState"); + m_turnToDirection->addTransition(tank, SIGNAL(actionCompleted()), finalState); + } + + void setDirection(qreal direction) + { + m_turnToDirection->assignProperty(m_tank, "direction", direction); + } + + void setDistance(qreal distance) + { + m_goToLocation->setDistance(distance); + } + +private: + QObject *m_tank; + GoToLocationState *m_goToLocation; + QState *m_turnToDirection; + +}; + +class TankSpottedTransition: public QSignalTransition +{ +public: + TankSpottedTransition(QObject *tank, ChaseState *target) : QSignalTransition(tank, SIGNAL(tankSpotted(qreal,qreal))), m_chase(target) + { + setTargetState(target); + } + +protected: + bool eventTest(QEvent *event) + { + bool b = QSignalTransition::eventTest(event); + if (b) { + QSignalEvent *se = static_cast<QSignalEvent *>(event); + m_chase->setDirection(se->arguments().at(0).toDouble()); + m_chase->setDistance(se->arguments().at(1).toDouble()); + } + return b; + } + +private: + ChaseState *m_chase; +}; + +class SeekAi: public QObject, public Plugin +{ + Q_OBJECT + Q_INTERFACES(Plugin) +public: + SeekAi() { setObjectName("Seek and destroy"); } + + virtual QState *create(QState *parentState, QObject *tank); +}; + +#endif diff --git a/examples/statemachine/tankgameplugins/seek_ai/seek_ai.pro b/examples/statemachine/tankgameplugins/seek_ai/seek_ai.pro new file mode 100644 index 0000000..0d8bf2e --- /dev/null +++ b/examples/statemachine/tankgameplugins/seek_ai/seek_ai.pro @@ -0,0 +1,13 @@ +TEMPLATE = lib +CONFIG += plugin +INCLUDEPATH += ../.. +HEADERS = seek_ai.h +SOURCES = seek_ai.cpp +TARGET = $$qtLibraryTarget(seek_ai) +DESTDIR = ../../tankgame/plugins + +#! [0] +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgame/plugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS seek_ai.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgameplugins/seek_ai
\ No newline at end of file diff --git a/examples/statemachine/tankgameplugins/spin_ai/spin_ai.cpp b/examples/statemachine/tankgameplugins/spin_ai/spin_ai.cpp new file mode 100644 index 0000000..581a6b2 --- /dev/null +++ b/examples/statemachine/tankgameplugins/spin_ai/spin_ai.cpp @@ -0,0 +1,70 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "spin_ai.h" + +#include <QtPlugin> + +QState *SpinAi::create(QState *parentState, QObject *tank) +{ + QState *topLevel = new QState(parentState); + QState *spinState = new SpinState(tank, topLevel); + topLevel->setInitialState(spinState); + + // When tank is spotted, fire two times and go back to spin state + QState *fireState = new QState(topLevel); + + QState *fireOnce = new QState(fireState); + fireState->setInitialState(fireOnce); + connect(fireOnce, SIGNAL(entered()), tank, SLOT(fireCannon())); + + QState *fireTwice = new QState(fireState); + connect(fireTwice, SIGNAL(entered()), tank, SLOT(fireCannon())); + + fireOnce->addTransition(tank, SIGNAL(actionCompleted()), fireTwice); + fireTwice->addTransition(tank, SIGNAL(actionCompleted()), spinState); + + spinState->addTransition(tank, SIGNAL(tankSpotted(qreal,qreal)), fireState); + + return topLevel; +} + +Q_EXPORT_PLUGIN2(spin_ai, SpinAi) diff --git a/examples/statemachine/tankgameplugins/spin_ai/spin_ai.h b/examples/statemachine/tankgameplugins/spin_ai/spin_ai.h new file mode 100644 index 0000000..652e8b8 --- /dev/null +++ b/examples/statemachine/tankgameplugins/spin_ai/spin_ai.h @@ -0,0 +1,92 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SPIN_AI_H +#define SPIN_AI_H + +#include <tankgame/plugin.h> + +#include <QObject> +#include <QState> +#include <QVariant> + +class SpinState: public QState +{ + Q_OBJECT +public: + SpinState(QObject *tank, QState *parent) : QState(parent), m_tank(tank) + { + } + +public slots: + void spin() + { + m_tank->setProperty("direction", m_tank->property("direction").toDouble() + 90.0); + } + +protected: + void onEntry(QEvent *) + { + connect(m_tank, SIGNAL(actionCompleted()), this, SLOT(spin())); + spin(); + } + + void onExit(QEvent *) + { + disconnect(m_tank, SIGNAL(actionCompleted()), this, SLOT(spin())); + } + +private: + QObject *m_tank; + +}; + +class SpinAi: public QObject, public Plugin +{ + Q_OBJECT + Q_INTERFACES(Plugin) +public: + SpinAi() { setObjectName("Spin and destroy"); } + + virtual QState *create(QState *parentState, QObject *tank); +}; + +#endif diff --git a/examples/statemachine/tankgameplugins/spin_ai/spin_ai.pro b/examples/statemachine/tankgameplugins/spin_ai/spin_ai.pro new file mode 100644 index 0000000..8ab4da0 --- /dev/null +++ b/examples/statemachine/tankgameplugins/spin_ai/spin_ai.pro @@ -0,0 +1,13 @@ +TEMPLATE = lib +CONFIG += plugin +INCLUDEPATH += ../.. +HEADERS = spin_ai.h +SOURCES = spin_ai.cpp +TARGET = $$qtLibraryTarget(spin_ai) +DESTDIR = ../../tankgame/plugins + +#! [0] +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgame/plugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS spin_ai.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgameplugins/spin_ai
\ No newline at end of file diff --git a/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.cpp b/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.cpp new file mode 100644 index 0000000..19137b2 --- /dev/null +++ b/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.cpp @@ -0,0 +1,70 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "spin_ai_with_error.h" + +#include <QtPlugin> + +QState *SpinAiWithError::create(QState *parentState, QObject *tank) +{ + QState *topLevel = new QState(parentState); + QState *spinState = new SpinState(tank, topLevel); + topLevel->setInitialState(spinState); + + // When tank is spotted, fire two times and go back to spin state + // (no initial state set for fireState will lead to run-time error in machine) + QState *fireState = new QState(topLevel); + + QState *fireOnce = new QState(fireState); + connect(fireOnce, SIGNAL(entered()), tank, SLOT(fireCannon())); + + QState *fireTwice = new QState(fireState); + connect(fireTwice, SIGNAL(entered()), tank, SLOT(fireCannon())); + + fireOnce->addTransition(tank, SIGNAL(actionCompleted()), fireTwice); + fireTwice->addTransition(tank, SIGNAL(actionCompleted()), spinState); + + spinState->addTransition(tank, SIGNAL(tankSpotted(qreal,qreal)), fireState); + + return topLevel; +} + +Q_EXPORT_PLUGIN2(spin_ai_with_error, SpinAiWithError) diff --git a/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.h b/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.h new file mode 100644 index 0000000..e040bf2 --- /dev/null +++ b/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.h @@ -0,0 +1,92 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SPIN_AI_WITH_ERROR_H +#define SPIN_AI_WITH_ERROR_H + +#include <tankgame/plugin.h> + +#include <QObject> +#include <QState> +#include <QVariant> + +class SpinState: public QState +{ + Q_OBJECT +public: + SpinState(QObject *tank, QState *parent) : QState(parent), m_tank(tank) + { + } + +public slots: + void spin() + { + m_tank->setProperty("direction", m_tank->property("direction").toDouble() + 90.0); + } + +protected: + void onEntry(QEvent *) + { + connect(m_tank, SIGNAL(actionCompleted()), this, SLOT(spin())); + spin(); + } + + void onExit(QEvent *) + { + disconnect(m_tank, SIGNAL(actionCompleted()), this, SLOT(spin())); + } + +private: + QObject *m_tank; + +}; + +class SpinAiWithError: public QObject, public Plugin +{ + Q_OBJECT + Q_INTERFACES(Plugin) +public: + SpinAiWithError() { setObjectName("Spin and destroy with runtime error in state machine"); } + + virtual QState *create(QState *parentState, QObject *tank); +}; + +#endif diff --git a/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.pro b/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.pro new file mode 100644 index 0000000..124cf98 --- /dev/null +++ b/examples/statemachine/tankgameplugins/spin_ai_with_error/spin_ai_with_error.pro @@ -0,0 +1,13 @@ +TEMPLATE = lib +CONFIG += plugin +INCLUDEPATH += ../.. +HEADERS = spin_ai_with_error.h +SOURCES = spin_ai_with_error.cpp +TARGET = $$qtLibraryTarget(spin_ai_with_error) +DESTDIR = ../../tankgame/plugins + +#! [0] +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgame/plugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS spin_ai_with_error.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgameplugins/spin_ai_with_error
\ No newline at end of file diff --git a/examples/statemachine/tankgameplugins/tankgameplugins.pro b/examples/statemachine/tankgameplugins/tankgameplugins.pro new file mode 100644 index 0000000..a098e03 --- /dev/null +++ b/examples/statemachine/tankgameplugins/tankgameplugins.pro @@ -0,0 +1,11 @@ +TEMPLATE = subdirs +SUBDIRS = random_ai \ + spin_ai_with_error \ + spin_ai \ + seek_ai + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgameplugins +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS tankgameplugins.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/tankgameplugins +INSTALLS += target sources diff --git a/examples/statemachine/trafficlight/main.cpp b/examples/statemachine/trafficlight/main.cpp new file mode 100644 index 0000000..8a46fff --- /dev/null +++ b/examples/statemachine/trafficlight/main.cpp @@ -0,0 +1,190 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#ifdef QT_STATEMACHINE_SOLUTION +#include <qstate.h> +#include <qstatemachine.h> +#include <qfinalstate.h> +#endif + +//! [0] +class LightWidget : public QWidget +{ + Q_OBJECT + Q_PROPERTY(bool on READ isOn WRITE setOn) +public: + LightWidget(const QColor &color, QWidget *parent = 0) + : QWidget(parent), m_color(color), m_on(false) {} + + bool isOn() const + { return m_on; } + void setOn(bool on) + { + if (on == m_on) + return; + m_on = on; + update(); + } + +public slots: + void turnOff() { setOn(false); } + void turnOn() { setOn(true); } + +protected: + virtual void paintEvent(QPaintEvent *) + { + if (!m_on) + return; + QPainter painter(this); + painter.setRenderHint(QPainter::Antialiasing); + painter.setBrush(m_color); + painter.drawEllipse(0, 0, width(), height()); + } + +private: + QColor m_color; + bool m_on; +}; +//! [0] + +//! [1] +class TrafficLightWidget : public QWidget +{ +public: + TrafficLightWidget(QWidget *parent = 0) + : QWidget(parent) + { + QVBoxLayout *vbox = new QVBoxLayout(this); + m_red = new LightWidget(Qt::red); + vbox->addWidget(m_red); + m_yellow = new LightWidget(Qt::yellow); + vbox->addWidget(m_yellow); + m_green = new LightWidget(Qt::green); + vbox->addWidget(m_green); + QPalette pal = palette(); + pal.setColor(QPalette::Background, Qt::black); + setPalette(pal); + setAutoFillBackground(true); + } + + LightWidget *redLight() const + { return m_red; } + LightWidget *yellowLight() const + { return m_yellow; } + LightWidget *greenLight() const + { return m_green; } + +private: + LightWidget *m_red; + LightWidget *m_yellow; + LightWidget *m_green; +}; +//! [1] + +//! [2] +QState *createLightState(LightWidget *light, int duration, QState *parent = 0) +{ + QState *lightState = new QState(parent); + QTimer *timer = new QTimer(lightState); + timer->setInterval(duration); + timer->setSingleShot(true); + QState *timing = new QState(lightState); + QObject::connect(timing, SIGNAL(entered()), light, SLOT(turnOn())); + QObject::connect(timing, SIGNAL(entered()), timer, SLOT(start())); + QObject::connect(timing, SIGNAL(exited()), light, SLOT(turnOff())); + QFinalState *done = new QFinalState(lightState); + timing->addTransition(timer, SIGNAL(timeout()), done); + lightState->setInitialState(timing); + return lightState; +} +//! [2] + +//! [3] +class TrafficLight : public QWidget +{ +public: + TrafficLight(QWidget *parent = 0) + : QWidget(parent) + { + QVBoxLayout *vbox = new QVBoxLayout(this); + TrafficLightWidget *widget = new TrafficLightWidget(); + vbox->addWidget(widget); + vbox->setMargin(0); + + QStateMachine *machine = new QStateMachine(this); + QState *redGoingYellow = createLightState(widget->redLight(), 3000); + redGoingYellow->setObjectName("redGoingYellow"); + QState *yellowGoingGreen = createLightState(widget->yellowLight(), 1000); + yellowGoingGreen->setObjectName("yellowGoingGreen"); + redGoingYellow->addTransition(redGoingYellow, SIGNAL(finished()), yellowGoingGreen); + QState *greenGoingYellow = createLightState(widget->greenLight(), 3000); + greenGoingYellow->setObjectName("greenGoingYellow"); + yellowGoingGreen->addTransition(yellowGoingGreen, SIGNAL(finished()), greenGoingYellow); + QState *yellowGoingRed = createLightState(widget->yellowLight(), 1000); + yellowGoingRed->setObjectName("yellowGoingRed"); + greenGoingYellow->addTransition(greenGoingYellow, SIGNAL(finished()), yellowGoingRed); + yellowGoingRed->addTransition(yellowGoingRed, SIGNAL(finished()), redGoingYellow); + + machine->addState(redGoingYellow); + machine->addState(yellowGoingGreen); + machine->addState(greenGoingYellow); + machine->addState(yellowGoingRed); + machine->setInitialState(redGoingYellow); + machine->start(); + } +}; +//! [3] + +//! [4] +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + + TrafficLight widget; + widget.resize(110, 300); + widget.show(); + + return app.exec(); +} +//! [4] + +#include "main.moc" diff --git a/examples/statemachine/trafficlight/trafficlight.pro b/examples/statemachine/trafficlight/trafficlight.pro new file mode 100644 index 0000000..684575a --- /dev/null +++ b/examples/statemachine/trafficlight/trafficlight.pro @@ -0,0 +1,7 @@ +SOURCES = main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/trafficlight +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS trafficlight.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/trafficlight +INSTALLS += target sources diff --git a/examples/statemachine/twowaybutton/main.cpp b/examples/statemachine/twowaybutton/main.cpp new file mode 100644 index 0000000..a2c6e45 --- /dev/null +++ b/examples/statemachine/twowaybutton/main.cpp @@ -0,0 +1,86 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtCore module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QtGui> +#ifdef QT_STATEMACHINE_SOLUTION +#include <qstate.h> +#include <qstatemachine.h> +#endif + +//! [0] +int main(int argc, char **argv) +{ + QApplication app(argc, argv); + QPushButton button; + QStateMachine machine; +//! [0] + +//! [1] + QState *off = new QState(); + off->assignProperty(&button, "text", "Off"); + off->setObjectName("off"); + + QState *on = new QState(); + on->setObjectName("on"); + on->assignProperty(&button, "text", "On"); +//! [1] + +//! [2] + off->addTransition(&button, SIGNAL(clicked()), on); + on->addTransition(&button, SIGNAL(clicked()), off); +//! [2] + +//! [3] + machine.addState(off); + machine.addState(on); +//! [3] + +//! [4] + machine.setInitialState(off); + machine.start(); +//! [4] + +//! [5] + button.resize(100, 50); + button.show(); + return app.exec(); +} +//! [5] diff --git a/examples/statemachine/twowaybutton/twowaybutton.pro b/examples/statemachine/twowaybutton/twowaybutton.pro new file mode 100644 index 0000000..f6cbc57 --- /dev/null +++ b/examples/statemachine/twowaybutton/twowaybutton.pro @@ -0,0 +1,7 @@ +SOURCES = main.cpp + +# install +target.path = $$[QT_INSTALL_EXAMPLES]/statemachine/twowaybutton +sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS twowaybutton.pro +sources.path = $$[QT_INSTALL_EXAMPLES]/statemachine/twowaybutton +INSTALLS += target sources |