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    41 

    42 //Own

    43 #include "bomb.h"

    44 #include "submarine.h"

    45 #include "pixmapitem.h"

    46 #include "animationmanager.h"

    47 #include "qanimationstate.h"

    48 

    49 //Qt

    50 #include <QtCore/QSequentialAnimationGroup>

    51 #include <QtCore/QPropertyAnimation>

    52 #include <QtCore/QStateMachine>

    53 #include <QtCore/QFinalState>

    54 

    55 Bomb::Bomb() : PixmapItem(QString("bomb"), GraphicsScene::Big)

    56 {

    57     setZValue(2);

    58 }

    59 

    60 void Bomb::launch(Bomb::Direction direction)

    61 {

    62     QSequentialAnimationGroup *launchAnimation = new QSequentialAnimationGroup;

    63     AnimationManager::self()->registerAnimation(launchAnimation);

    64     qreal delta = direction == Right ? 20 : - 20;

    65     QPropertyAnimation *anim = new QPropertyAnimation(this, "pos");

    66     anim->setEndValue(QPointF(x() + delta,y() - 20));

    67     anim->setDuration(150);

    68     launchAnimation->addAnimation(anim);

    69     anim = new QPropertyAnimation(this, "pos");

    70     anim->setEndValue(QPointF(x() + delta*2, y() ));

    71     anim->setDuration(150);

    72     launchAnimation->addAnimation(anim);

    73     anim = new QPropertyAnimation(this, "pos");

    74     anim->setEndValue(QPointF(x() + delta*2,scene()->height()));

    75     anim->setDuration(y()/2*60);

    76     launchAnimation->addAnimation(anim);

    77     connect(anim,SIGNAL(valueChanged(QVariant)),this,SLOT(onAnimationLaunchValueChanged(QVariant)));

    78     connect(this, SIGNAL(bombExploded()), launchAnimation, SLOT(stop()));

    79     //We setup the state machine of the bomb

    80     QStateMachine *machine = new QStateMachine(this);

    81 

    82     //This state is when the launch animation is playing

    83     QAnimationState *launched = new QAnimationState(machine);

    84     launched->setAnimation(launchAnimation);

    85 

    86     //End

    87     QFinalState *final = new QFinalState(machine);

    88 

    89     machine->setInitialState(launched);

    90 

    91     //### Add a nice animation when the bomb is destroyed

    92     launched->addTransition(this, SIGNAL(bombExploded()),final);

    93 

    94     //If the animation is finished, then we move to the final state

    95     launched->addTransition(launched, SIGNAL(animationFinished()), final);

    96 

    97     //The machine has finished to be executed, then the boat is dead

    98     connect(machine,SIGNAL(finished()),this, SIGNAL(bombExecutionFinished()));

    99 

   100     machine->start();

   101 

   102 }

   103 

   104 void Bomb::onAnimationLaunchValueChanged(const QVariant &)

   105 {

   106     foreach (QGraphicsItem * item , collidingItems(Qt::IntersectsItemBoundingRect)) {

   107         if (item->type() == SubMarine::Type) {

   108             SubMarine *s = static_cast<SubMarine *>(item);

   109             destroy();

   110             s->destroy();

   111         }

   112     }

   113 }

   114 

   115 void Bomb::destroy()

   116 {

   117     emit bombExploded();

   118 }