submarine.cpp Example File

/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: ** ** This file is part of the QtCore module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see For further ** information use the contact form at ** ** BSD License Usage ** Alternatively, you may use this file under the terms of the BSD license ** as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of The Qt Company Ltd nor the names of its ** contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/
//Own #include "submarine.h" #include "submarine_p.h" #include "torpedo.h" #include "pixmapitem.h" #include "graphicsscene.h" #include "animationmanager.h" #include "qanimationstate.h" #include <QtCore/QPropertyAnimation> #include <QtCore/QStateMachine> #include <QtCore/QFinalState> #include <QtCore/QSequentialAnimationGroup> static QAbstractAnimation *setupDestroyAnimation(SubMarine *sub) { QSequentialAnimationGroup *group = new QSequentialAnimationGroup(sub); for (int i = 1; i <= 4; ++i) { PixmapItem *step = new PixmapItem(QString::fromLatin1("explosion/submarine/step%1").arg(i), GraphicsScene::Big, sub); step->setZValue(6); step->setOpacity(0); QPropertyAnimation *anim = new QPropertyAnimation(step, "opacity", group); anim->setDuration(100); anim->setEndValue(1); } AnimationManager::self()->registerAnimation(group); return group; } SubMarine::SubMarine(int type, const QString &name, int points) : PixmapItem(QString("submarine"), GraphicsScene::Big), subType(type), subName(name), subPoints(points), speed(0), direction(SubMarine::None) { setZValue(5); setTransformOriginPoint(boundingRect().center()); graphicsRotation = new QGraphicsRotation(this); graphicsRotation->setAxis(Qt::YAxis); graphicsRotation->setOrigin(QVector3D(size().width()/2, size().height()/2, 0)); QList<QGraphicsTransform *> r; r.append(graphicsRotation); setTransformations(r); //We setup the state machine of the submarine QStateMachine *machine = new QStateMachine(this); //This state is when the boat is moving/rotating QState *moving = new QState(machine); //This state is when the boat is moving from left to right MovementState *movement = new MovementState(this, moving); //This state is when the boat is moving from left to right ReturnState *rotation = new ReturnState(this, moving); //This is the initial state of the moving root state moving->setInitialState(movement); movement->addTransition(this, SIGNAL(subMarineStateChanged()), moving); //This is the initial state of the machine machine->setInitialState(moving); //End QFinalState *final = new QFinalState(machine); //If the moving animation is finished we move to the return state movement->addTransition(movement, SIGNAL(animationFinished()), rotation); //If the return animation is finished we move to the moving state rotation->addTransition(rotation, SIGNAL(animationFinished()), movement); //This state play the destroyed animation QAnimationState *destroyedState = new QAnimationState(machine); destroyedState->setAnimation(setupDestroyAnimation(this)); //Play a nice animation when the submarine is destroyed moving->addTransition(this, SIGNAL(subMarineDestroyed()), destroyedState); //Transition to final state when the destroyed animation is finished destroyedState->addTransition(destroyedState, SIGNAL(animationFinished()), final); //The machine has finished to be executed, then the submarine is dead connect(machine,SIGNAL(finished()),this, SIGNAL(subMarineExecutionFinished())); machine->start(); } int SubMarine::points() const { return subPoints; } void SubMarine::setCurrentDirection(SubMarine::Movement direction) { if (this->direction == direction) return; if (direction == SubMarine::Right && this->direction == SubMarine::None) { graphicsRotation->setAngle(180); } this->direction = direction; } enum SubMarine::Movement SubMarine::currentDirection() const { return direction; } void SubMarine::setCurrentSpeed(int speed) { if (speed < 0 || speed > 3) { qWarning("SubMarine::setCurrentSpeed : The speed is invalid"); } this->speed = speed; emit subMarineStateChanged(); } int SubMarine::currentSpeed() const { return speed; } void SubMarine::launchTorpedo(int speed) { Torpedo * torp = new Torpedo(); GraphicsScene *scene = static_cast<GraphicsScene *>(this->scene()); scene->addItem(torp); torp->setPos(pos()); torp->setCurrentSpeed(speed); torp->launch(); } void SubMarine::destroy() { emit subMarineDestroyed(); } int SubMarine::type() const { return Type; }

© 2018 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.