1 files changed, 107 insertions, 0 deletions
diff --git a/src/SceneChanger.cpp b/src/SceneChanger.cpp
new file mode 100644
index 0000000..2aa8b86
--- /dev/null
+++ b/src/SceneChanger.cpp
@@ -0,0 +1,107 @@
+#include "SceneChanger.h"
+#include "GameScene.h"
+#include "GameView.h"
+#include "GraphicsPixmapObject.h"
+
+#include <QTimer>
+#include <QParallelAnimationGroup>
+#include <QPropertyAnimation>
+
+SceneChanger::SceneChanger(QString name,  const QRectF &rect, GameView *parent) :
+    GameScene(name, parent)
+{
+    setSceneRect(rect);
+
+    m_anim = new QParallelAnimationGroup(this);
+    connect(m_anim, SIGNAL(finished()), this, SLOT(animationFinished()));
+    setDuration(500);
+
+    m_updateTimer = new QTimer(this);
+    connect(m_updateTimer, SIGNAL(timeout()), this, SLOT(update()));
+}
+
+void SceneChanger::updateLogic()
+{
+    advance();
+    update();
+}
+
+void SceneChanger::setDuration(int msecs)
+{
+    m_duration = msecs;
+}
+
+void SceneChanger::changeScene(GameScene *from, GameScene *to, bool rightToLeft)
+{
+    m_fromScene = from;
+    m_toScene = to;
+
+    int width = from->sceneRect().width();
+    int height = from->sceneRect().height();
+
+    clear();
+    m_anim->clear();
+
+    QPixmap from_pixmap(width, height);
+    QPixmap to_pixmap(width, height);
+
+    QPainter from_painter(&from_pixmap);
+    QPainter to_painter(&to_pixmap);
+
+    from->render(&from_painter);
+    to->render(&to_painter);
+
+    GraphicsPixmapObject *from_obj = new GraphicsPixmapObject(from_pixmap);
+    from_obj->setPos(0, 0);
+
+    GraphicsPixmapObject *to_obj = new GraphicsPixmapObject(to_pixmap);
+    to_obj->setPos(0, 0);
+
+    addItem(from_obj);
+    addItem(to_obj);
+
+    QPropertyAnimation *from_anim = new QPropertyAnimation(from_obj, "pos",
+                                                           this);
+
+    QPropertyAnimation *to_anim = new QPropertyAnimation(to_obj, "pos",
+                                                         this);
+
+    if( rightToLeft )
+    {
+        from_anim->setDuration(m_duration);
+        from_anim->setStartValue(QPointF(0.0, 0.0));
+        from_anim->setEndValue(QPointF(-(float)width, 0.0));
+        from_anim->setEasingCurve(QEasingCurve::OutCubic); //or OutBounce, OutQuint...
+
+        to_anim->setDuration(m_duration);
+        to_anim->setStartValue(QPointF((float)width, 0.0));
+        to_anim->setEndValue(QPointF(0.0, 0.0));
+        to_anim->setEasingCurve(QEasingCurve::OutCubic); //or OutBounce, OutQuint...
+    }
+    else
+    {
+        from_anim->setDuration(m_duration);
+        from_anim->setStartValue(QPointF(0.0, 0.0));
+        from_anim->setEndValue(QPointF((float)width, 0.0));
+        from_anim->setEasingCurve(QEasingCurve::OutCubic); //or OutBounce, OutQuint...
+
+        to_anim->setDuration(m_duration);
+        to_anim->setStartValue(QPointF(-(float)width, 0.0));
+        to_anim->setEndValue(QPointF(0.0, 0.0));
+        to_anim->setEasingCurve(QEasingCurve::OutCubic); //or OutBounce, OutQuint...
+
+    }
+    m_anim->addAnimation(from_anim);
+    m_anim->addAnimation(to_anim);
+
+    // Use a little more frequent update than normally
+    m_updateTimer->start(1000 / 100);
+    m_anim->start();
+}
+
+void SceneChanger::animationFinished()
+{
+    m_updateTimer->stop();
+
+    gameView()->showScene(m_toScene);
+}