/****************************************************************************+
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**+
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the QtCore module of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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//Own+
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#include "bomb.h"+
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#include "submarine.h"+
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#include "pixmapitem.h"+
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#include "animationmanager.h"+
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#include "qanimationstate.h"+
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+
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//Qt+
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#include <QtCore/QSequentialAnimationGroup>+
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#include <QtCore/QPropertyAnimation>+
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#include <QtCore/QStateMachine>+
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#include <QtCore/QFinalState>+
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+
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Bomb::Bomb() : PixmapItem(QString("bomb"), GraphicsScene::Big)+
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{+
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    setZValue(2);+
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}+
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+
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void Bomb::launch(Bomb::Direction direction)+
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{+
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    QSequentialAnimationGroup *launchAnimation = new QSequentialAnimationGroup;+
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    AnimationManager::self()->registerAnimation(launchAnimation);+
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    qreal delta = direction == Right ? 20 : - 20;+
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    QPropertyAnimation *anim = new QPropertyAnimation(this, "pos");+
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    anim->setEndValue(QPointF(x() + delta,y() - 20));+
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    anim->setDuration(150);+
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    launchAnimation->addAnimation(anim);+
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    anim = new QPropertyAnimation(this, "pos");+
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    anim->setEndValue(QPointF(x() + delta*2, y() ));+
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    anim->setDuration(150);+
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    launchAnimation->addAnimation(anim);+
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    anim = new QPropertyAnimation(this, "pos");+
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    anim->setEndValue(QPointF(x() + delta*2,scene()->height()));+
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    anim->setDuration(y()/2*60);+
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    launchAnimation->addAnimation(anim);+
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    connect(anim,SIGNAL(valueChanged(const QVariant &)),this,SLOT(onAnimationLaunchValueChanged(const QVariant &)));+
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    connect(this, SIGNAL(bombExploded()), launchAnimation, SLOT(stop()));+
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    //We setup the state machine of the bomb+
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    QStateMachine *machine = new QStateMachine(this);+
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+
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    //This state is when the launch animation is playing+
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    QAnimationState *launched = new QAnimationState(machine);+
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    launched->setAnimation(launchAnimation);+
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+
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    //End+
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    QFinalState *final = new QFinalState(machine);+
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+
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    machine->setInitialState(launched);+
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+
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    //### Add a nice animation when the bomb is destroyed+
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    launched->addTransition(this, SIGNAL(bombExploded()),final);+
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+
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    //If the animation is finished, then we move to the final state+
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    launched->addTransition(launched, SIGNAL(animationFinished()), final);+
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+
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    //The machine has finished to be executed, then the boat is dead+
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    connect(machine,SIGNAL(finished()),this, SIGNAL(bombExecutionFinished()));+
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+
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    machine->start();+
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+
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}+
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+
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void Bomb::onAnimationLaunchValueChanged(const QVariant &)+
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{+
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    foreach (QGraphicsItem * item , collidingItems(Qt::IntersectsItemBoundingRect)) {+
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        if (item->type() == SubMarine::Type) {+
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            SubMarine *s = static_cast<SubMarine *>(item);+
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            destroy();+
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            s->destroy();+
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        }+
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    }+
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}+
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+
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void Bomb::destroy()+
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{+
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    emit bombExploded();+
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}+
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