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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//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;
}
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