qt5base-lts/examples/animation/sub-attaq/graphicsscene.cpp
Jason McDonald 629d6eda5c Update contact information in license headers.
Replace Nokia contact email address with Qt Project website.

Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415
Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
2012-01-23 04:04:33 +01:00

283 lines
9.7 KiB
C++

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: http://www.qt-project.org/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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:
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** $QT_END_LICENSE$
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****************************************************************************/
//Own
#include "graphicsscene.h"
#include "states.h"
#include "boat.h"
#include "submarine.h"
#include "torpedo.h"
#include "bomb.h"
#include "pixmapitem.h"
#include "animationmanager.h"
#include "qanimationstate.h"
#include "progressitem.h"
#include "textinformationitem.h"
//Qt
#include <QtCore/QPropertyAnimation>
#include <QtCore/QSequentialAnimationGroup>
#include <QtCore/QParallelAnimationGroup>
#include <QtCore/QStateMachine>
#include <QtCore/QFinalState>
#include <QtCore/QPauseAnimation>
#include <QtWidgets/QAction>
#include <QtCore/QDir>
#include <QtWidgets/QApplication>
#include <QtWidgets/QMessageBox>
#include <QtWidgets/QGraphicsView>
#include <QtWidgets/QGraphicsSceneMouseEvent>
#include <QtCore/QXmlStreamReader>
GraphicsScene::GraphicsScene(int x, int y, int width, int height, Mode mode)
: QGraphicsScene(x , y, width, height), mode(mode), boat(new Boat)
{
PixmapItem *backgroundItem = new PixmapItem(QString("background"),mode);
backgroundItem->setZValue(1);
backgroundItem->setPos(0,0);
addItem(backgroundItem);
PixmapItem *surfaceItem = new PixmapItem(QString("surface"),mode);
surfaceItem->setZValue(3);
surfaceItem->setPos(0,sealLevel() - surfaceItem->boundingRect().height()/2);
addItem(surfaceItem);
//The item that display score and level
progressItem = new ProgressItem(backgroundItem);
textInformationItem = new TextInformationItem(backgroundItem);
textInformationItem->hide();
//We create the boat
addItem(boat);
boat->setPos(this->width()/2, sealLevel() - boat->size().height());
boat->hide();
//parse the xml that contain all data of the game
QXmlStreamReader reader;
QFile file(":data.xml");
file.open(QIODevice::ReadOnly);
reader.setDevice(&file);
LevelDescription currentLevel;
while (!reader.atEnd()) {
reader.readNext();
if (reader.tokenType() == QXmlStreamReader::StartElement) {
if (reader.name() == "submarine") {
SubmarineDescription desc;
desc.name = reader.attributes().value("name").toString();
desc.points = reader.attributes().value("points").toString().toInt();
desc.type = reader.attributes().value("type").toString().toInt();
submarinesData.append(desc);
} else if (reader.name() == "level") {
currentLevel.id = reader.attributes().value("id").toString().toInt();
currentLevel.name = reader.attributes().value("name").toString();
} else if (reader.name() == "subinstance") {
currentLevel.submarines.append(qMakePair(reader.attributes().value("type").toString().toInt(), reader.attributes().value("nb").toString().toInt()));
}
} else if (reader.tokenType() == QXmlStreamReader::EndElement) {
if (reader.name() == "level") {
levelsData.insert(currentLevel.id, currentLevel);
currentLevel.submarines.clear();
}
}
}
}
qreal GraphicsScene::sealLevel() const
{
return (mode == Big) ? 220 : 160;
}
void GraphicsScene::setupScene(QAction *newAction, QAction *quitAction)
{
static const int nLetters = 10;
static struct {
char const *pix;
qreal initX, initY;
qreal destX, destY;
} logoData[nLetters] = {
{"s", -1000, -1000, 300, 150 },
{"u", -800, -1000, 350, 150 },
{"b", -600, -1000, 400, 120 },
{"dash", -400, -1000, 460, 150 },
{"a", 1000, 2000, 350, 250 },
{"t", 800, 2000, 400, 250 },
{"t2", 600, 2000, 430, 250 },
{"a2", 400, 2000, 465, 250 },
{"q", 200, 2000, 510, 250 },
{"excl", 0, 2000, 570, 220 } };
QSequentialAnimationGroup * lettersGroupMoving = new QSequentialAnimationGroup(this);
QParallelAnimationGroup * lettersGroupFading = new QParallelAnimationGroup(this);
for (int i = 0; i < nLetters; ++i) {
PixmapItem *logo = new PixmapItem(QLatin1String(":/logo-") + logoData[i].pix, this);
logo->setPos(logoData[i].initX, logoData[i].initY);
logo->setZValue(i + 3);
//creation of the animations for moving letters
QPropertyAnimation *moveAnim = new QPropertyAnimation(logo, "pos", lettersGroupMoving);
moveAnim->setEndValue(QPointF(logoData[i].destX, logoData[i].destY));
moveAnim->setDuration(200);
moveAnim->setEasingCurve(QEasingCurve::OutElastic);
lettersGroupMoving->addPause(50);
//creation of the animations for fading out the letters
QPropertyAnimation *fadeAnim = new QPropertyAnimation(logo, "opacity", lettersGroupFading);
fadeAnim->setDuration(800);
fadeAnim->setEndValue(0);
fadeAnim->setEasingCurve(QEasingCurve::OutQuad);
}
QStateMachine *machine = new QStateMachine(this);
//This state is when the player is playing
PlayState *gameState = new PlayState(this, machine);
//Final state
QFinalState *final = new QFinalState(machine);
//Animation when the player enter in the game
QAnimationState *lettersMovingState = new QAnimationState(machine);
lettersMovingState->setAnimation(lettersGroupMoving);
//Animation when the welcome screen disappear
QAnimationState *lettersFadingState = new QAnimationState(machine);
lettersFadingState->setAnimation(lettersGroupFading);
//if new game then we fade out the welcome screen and start playing
lettersMovingState->addTransition(newAction, SIGNAL(triggered()), lettersFadingState);
lettersFadingState->addTransition(lettersFadingState, SIGNAL(animationFinished()), gameState);
//New Game is triggered then player start playing
gameState->addTransition(newAction, SIGNAL(triggered()), gameState);
//Wanna quit, then connect to CTRL+Q
gameState->addTransition(quitAction, SIGNAL(triggered()), final);
lettersMovingState->addTransition(quitAction, SIGNAL(triggered()), final);
//Welcome screen is the initial state
machine->setInitialState(lettersMovingState);
machine->start();
//We reach the final state, then we quit
connect(machine, SIGNAL(finished()), qApp, SLOT(quit()));
}
void GraphicsScene::addItem(Bomb *bomb)
{
bombs.insert(bomb);
connect(bomb,SIGNAL(bombExecutionFinished()),this, SLOT(onBombExecutionFinished()));
QGraphicsScene::addItem(bomb);
}
void GraphicsScene::addItem(Torpedo *torpedo)
{
torpedos.insert(torpedo);
connect(torpedo,SIGNAL(torpedoExecutionFinished()),this, SLOT(onTorpedoExecutionFinished()));
QGraphicsScene::addItem(torpedo);
}
void GraphicsScene::addItem(SubMarine *submarine)
{
submarines.insert(submarine);
connect(submarine,SIGNAL(subMarineExecutionFinished()),this, SLOT(onSubMarineExecutionFinished()));
QGraphicsScene::addItem(submarine);
}
void GraphicsScene::addItem(QGraphicsItem *item)
{
QGraphicsScene::addItem(item);
}
void GraphicsScene::onBombExecutionFinished()
{
Bomb *bomb = qobject_cast<Bomb *>(sender());
bombs.remove(bomb);
bomb->deleteLater();
if (boat)
boat->setBombsLaunched(boat->bombsLaunched() - 1);
}
void GraphicsScene::onTorpedoExecutionFinished()
{
Torpedo *torpedo = qobject_cast<Torpedo *>(sender());
torpedos.remove(torpedo);
torpedo->deleteLater();
}
void GraphicsScene::onSubMarineExecutionFinished()
{
SubMarine *submarine = qobject_cast<SubMarine *>(sender());
submarines.remove(submarine);
if (submarines.count() == 0)
emit allSubMarineDestroyed(submarine->points());
else
emit subMarineDestroyed(submarine->points());
submarine->deleteLater();
}
void GraphicsScene::clearScene()
{
foreach (SubMarine *sub, submarines) {
sub->destroy();
sub->deleteLater();
}
foreach (Torpedo *torpedo, torpedos) {
torpedo->destroy();
torpedo->deleteLater();
}
foreach (Bomb *bomb, bombs) {
bomb->destroy();
bomb->deleteLater();
}
submarines.clear();
bombs.clear();
torpedos.clear();
AnimationManager::self()->unregisterAllAnimations();
boat->stop();
boat->hide();
boat->setEnabled(true);
}