qt-everywhere-src-5.14.1/qtbase/examples/widgets/animation/sub-attaq/boat.cpp - orbit - Git at Google

 /****************************************************************************
 **
 ** Copyright (C) 2016 The Qt Company Ltd.
 ** Contact: https://www.qt.io/licensing/
 **
 ** 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 https://www.qt.io/terms-conditions. For further
 ** information use the contact form at https://www.qt.io/contact-us.
 **
 ** 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 "boat.h"
 #include "boat_p.h"
 #include "bomb.h"
 #include "graphicsscene.h"
 #include "animationmanager.h"
 #include "qanimationstate.h"

 //Qt
 #include <QFinalState>
 #include <QHistoryState>
 #include <QPropertyAnimation>
 #include <QSequentialAnimationGroup>
 #include <QState>
 #include <QStateMachine>

 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)
 {
     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, &QAbstractAnimation::finished, stopState);
     moveStateRight->addTransition(movementAnimation, &QAbstractAnimation::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 *finalState = 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, &Boat::boatDestroyed, destroyedState);

     //Transition to final state when the destroyed animation is finished
     destroyedState->addTransition(destroyedState, &QAnimationState::animationFinished, finalState);

     //The machine has finished to be executed, then the boat is dead
     connect(machine, &QState::finished, this, &Boat::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;
 }
	/****************************************************************************
	**
	** Copyright (C) 2016 The Qt Company Ltd.
	** Contact: https://www.qt.io/licensing/
	**
	** 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 https://www.qt.io/terms-conditions. For further
	** information use the contact form at https://www.qt.io/contact-us.
	**
	** 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 "boat.h"
	#include "boat_p.h"
	#include "bomb.h"
	#include "graphicsscene.h"
	#include "animationmanager.h"
	#include "qanimationstate.h"

	//Qt
	#include <QFinalState>
	#include <QHistoryState>
	#include <QPropertyAnimation>
	#include <QSequentialAnimationGroup>
	#include <QState>
	#include <QStateMachine>

	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)
	{
	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, &QAbstractAnimation::finished, stopState);
	moveStateRight->addTransition(movementAnimation, &QAbstractAnimation::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 *finalState = 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, &Boat::boatDestroyed, destroyedState);

	//Transition to final state when the destroyed animation is finished
	destroyedState->addTransition(destroyedState, &QAnimationState::animationFinished, finalState);

	//The machine has finished to be executed, then the boat is dead
	connect(machine, &QState::finished, this, &Boat::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;
	}