qt5base-lts/examples/widgets/animation/sub-attaq/boat.cpp
Sergio Ahumada 48e0c4df23 Update copyright year in Digia's license headers
Change-Id: Ic804938fc352291d011800d21e549c10acac66fb
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
2013-01-18 09:07:35 +01:00

273 lines
9.9 KiB
C++

/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** 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 Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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.
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** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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
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** $QT_END_LICENSE$
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****************************************************************************/
//Own
#include "boat.h"
#include "boat_p.h"
#include "bomb.h"
#include "pixmapitem.h"
#include "graphicsscene.h"
#include "animationmanager.h"
#include "qanimationstate.h"
//Qt
#include <QtCore/QPropertyAnimation>
#include <QtCore/QStateMachine>
#include <QtCore/QHistoryState>
#include <QtCore/QFinalState>
#include <QtCore/QState>
#include <QtCore/QSequentialAnimationGroup>
static QAbstractAnimation *setupDestroyAnimation(Boat *boat)
{
QSequentialAnimationGroup *group = new QSequentialAnimationGroup(boat);
for (int i = 1; i <= 4; i++) {
PixmapItem *step = new PixmapItem(QString("explosion/boat/step%1").arg(i),GraphicsScene::Big, boat);
step->setZValue(6);
step->setOpacity(0);
//fade-in
QPropertyAnimation *anim = new QPropertyAnimation(step, "opacity");
anim->setEndValue(1);
anim->setDuration(100);
group->insertAnimation(i-1, anim);
//and then fade-out
QPropertyAnimation *anim2 = new QPropertyAnimation(step, "opacity");
anim2->setEndValue(0);
anim2->setDuration(100);
group->addAnimation(anim2);
}
AnimationManager::self()->registerAnimation(group);
return group;
}
Boat::Boat() : PixmapItem(QString("boat"), GraphicsScene::Big),
speed(0), bombsAlreadyLaunched(0), direction(Boat::None), movementAnimation(0)
{
setZValue(4);
setFlags(QGraphicsItem::ItemIsFocusable);
//The movement animation used to animate the boat
movementAnimation = new QPropertyAnimation(this, "pos");
//The destroy animation used to explode the boat
destroyAnimation = setupDestroyAnimation(this);
//We setup the state machine of the boat
machine = new QStateMachine(this);
QState *moving = new QState(machine);
StopState *stopState = new StopState(this, moving);
machine->setInitialState(moving);
moving->setInitialState(stopState);
MoveStateRight *moveStateRight = new MoveStateRight(this, moving);
MoveStateLeft *moveStateLeft = new MoveStateLeft(this, moving);
LaunchStateRight *launchStateRight = new LaunchStateRight(this, machine);
LaunchStateLeft *launchStateLeft = new LaunchStateLeft(this, machine);
//then setup the transitions for the rightMove state
KeyStopTransition *leftStopRight = new KeyStopTransition(this, QEvent::KeyPress, Qt::Key_Left);
leftStopRight->setTargetState(stopState);
KeyMoveTransition *leftMoveRight = new KeyMoveTransition(this, QEvent::KeyPress, Qt::Key_Left);
leftMoveRight->setTargetState(moveStateRight);
KeyMoveTransition *rightMoveRight = new KeyMoveTransition(this, QEvent::KeyPress, Qt::Key_Right);
rightMoveRight->setTargetState(moveStateRight);
KeyMoveTransition *rightMoveStop = new KeyMoveTransition(this, QEvent::KeyPress, Qt::Key_Right);
rightMoveStop->setTargetState(moveStateRight);
//then setup the transitions for the leftMove state
KeyStopTransition *rightStopLeft = new KeyStopTransition(this, QEvent::KeyPress, Qt::Key_Right);
rightStopLeft->setTargetState(stopState);
KeyMoveTransition *rightMoveLeft = new KeyMoveTransition(this, QEvent::KeyPress, Qt::Key_Right);
rightMoveLeft->setTargetState(moveStateLeft);
KeyMoveTransition *leftMoveLeft = new KeyMoveTransition(this, QEvent::KeyPress,Qt::Key_Left);
leftMoveLeft->setTargetState(moveStateLeft);
KeyMoveTransition *leftMoveStop = new KeyMoveTransition(this, QEvent::KeyPress,Qt::Key_Left);
leftMoveStop->setTargetState(moveStateLeft);
//We set up the right move state
moveStateRight->addTransition(leftStopRight);
moveStateRight->addTransition(leftMoveRight);
moveStateRight->addTransition(rightMoveRight);
stopState->addTransition(rightMoveStop);
//We set up the left move state
moveStateLeft->addTransition(rightStopLeft);
moveStateLeft->addTransition(leftMoveLeft);
moveStateLeft->addTransition(rightMoveLeft);
stopState->addTransition(leftMoveStop);
//The animation is finished, it means we reached the border of the screen, the boat is stopped so we move to the stop state
moveStateLeft->addTransition(movementAnimation, SIGNAL(finished()), stopState);
moveStateRight->addTransition(movementAnimation, SIGNAL(finished()), stopState);
//We set up the keys for dropping bombs
KeyLaunchTransition *upFireLeft = new KeyLaunchTransition(this, QEvent::KeyPress, Qt::Key_Up);
upFireLeft->setTargetState(launchStateRight);
KeyLaunchTransition *upFireRight = new KeyLaunchTransition(this, QEvent::KeyPress, Qt::Key_Up);
upFireRight->setTargetState(launchStateRight);
KeyLaunchTransition *upFireStop = new KeyLaunchTransition(this, QEvent::KeyPress, Qt::Key_Up);
upFireStop->setTargetState(launchStateRight);
KeyLaunchTransition *downFireLeft = new KeyLaunchTransition(this, QEvent::KeyPress, Qt::Key_Down);
downFireLeft->setTargetState(launchStateLeft);
KeyLaunchTransition *downFireRight = new KeyLaunchTransition(this, QEvent::KeyPress, Qt::Key_Down);
downFireRight->setTargetState(launchStateLeft);
KeyLaunchTransition *downFireMove = new KeyLaunchTransition(this, QEvent::KeyPress, Qt::Key_Down);
downFireMove->setTargetState(launchStateLeft);
//We set up transitions for fire up
moveStateRight->addTransition(upFireRight);
moveStateLeft->addTransition(upFireLeft);
stopState->addTransition(upFireStop);
//We set up transitions for fire down
moveStateRight->addTransition(downFireRight);
moveStateLeft->addTransition(downFireLeft);
stopState->addTransition(downFireMove);
//Finally the launch state should come back to its original state
QHistoryState *historyState = new QHistoryState(moving);
launchStateLeft->addTransition(historyState);
launchStateRight->addTransition(historyState);
QFinalState *final = new QFinalState(machine);
//This state play the destroyed animation
QAnimationState *destroyedState = new QAnimationState(machine);
destroyedState->setAnimation(destroyAnimation);
//Play a nice animation when the boat is destroyed
moving->addTransition(this, SIGNAL(boatDestroyed()), 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 boat is dead
connect(machine,SIGNAL(finished()), this, SIGNAL(boatExecutionFinished()));
}
void Boat::run()
{
//We register animations
AnimationManager::self()->registerAnimation(movementAnimation);
AnimationManager::self()->registerAnimation(destroyAnimation);
machine->start();
}
void Boat::stop()
{
movementAnimation->stop();
machine->stop();
}
void Boat::updateBoatMovement()
{
if (speed == 0 || direction == Boat::None) {
movementAnimation->stop();
return;
}
movementAnimation->stop();
if (direction == Boat::Left) {
movementAnimation->setEndValue(QPointF(0,y()));
movementAnimation->setDuration(x()/speed*15);
}
else /*if (direction == Boat::Right)*/ {
movementAnimation->setEndValue(QPointF(scene()->width()-size().width(),y()));
movementAnimation->setDuration((scene()->width()-size().width()-x())/speed*15);
}
movementAnimation->start();
}
void Boat::destroy()
{
movementAnimation->stop();
emit boatDestroyed();
}
int Boat::bombsLaunched() const
{
return bombsAlreadyLaunched;
}
void Boat::setBombsLaunched(int number)
{
if (number > MAX_BOMB) {
qWarning("Boat::setBombsLaunched : It impossible to launch that number of bombs");
return;
}
bombsAlreadyLaunched = number;
}
int Boat::currentSpeed() const
{
return speed;
}
void Boat::setCurrentSpeed(int speed)
{
if (speed > 3 || speed < 0) {
qWarning("Boat::setCurrentSpeed: The boat can't run on that speed");
return;
}
this->speed = speed;
}
enum Boat::Movement Boat::currentDirection() const
{
return direction;
}
void Boat::setCurrentDirection(Movement direction)
{
this->direction = direction;
}
int Boat::type() const
{
return Type;
}