--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/QTfrontend/bgwidget.cpp	Thu Apr 23 13:54:25 2009 +0000
@@ -0,0 +1,139 @@
+/*
+ * Hedgewars, a free turn based strategy game
+ * Copyright (c) 2009 Kristian Lehmann <email@thexception.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ */
+
+#include "bgwidget.h"
+
+SpritePosition::SpritePosition(QWidget * parent, int sh)
+{
+	wParent = parent;
+	iSpriteHeight = sh;
+	reset();
+}
+
+SpritePosition::~SpritePosition()
+{
+}
+
+void SpritePosition::move()
+{
+	fX += fXMov;
+	fY += fYMov;
+	iAngle += 4;
+	if (iAngle >= 360) iAngle = 0;
+	if (fY > wParent->height()) reset();
+}
+
+void SpritePosition::reset()
+{
+	fY = -1 * iSpriteHeight;
+	fX = (qrand() % ((int)(wParent->width() * 1.5))) - wParent->width()/2;
+	fYMov = ((qrand() % 400)+300) / 100.0f;
+	fXMov = fYMov * 0.5f;
+	iAngle = qrand() % 360;
+}
+
+QPoint SpritePosition::pos()
+{
+	return QPoint((int)fX,(int)fY);
+}
+
+int SpritePosition::getAngle()
+{
+	return iAngle;
+}
+
+void SpritePosition::init()
+{
+	fY = qrand() % (wParent->height() + 1);
+	fX = qrand() % (wParent->width() + 1);
+}
+
+BGWidget::BGWidget(QWidget * parent) : QWidget(parent)
+{
+	sprite.load(":/res/Star.png");
+	
+	setAutoFillBackground(false);
+
+	for (int i = 0; i < SPRITE_MAX; i++) spritePositions[i] = new SpritePosition(this, sprite.height());
+	
+	for (int i = 0; i < 360; i++)
+	{
+		rotatedSprites[i] = new QImage(sprite.width(), sprite.height(), QImage::Format_ARGB32);
+		rotatedSprites[i]->fill(0);
+
+		QPoint translate(sprite.width()/2, sprite.height()/2);
+
+		QPainter p;
+		p.begin(rotatedSprites[i]);
+		p.setRenderHint(QPainter::Antialiasing);
+		p.setRenderHint(QPainter::SmoothPixmapTransform);
+		p.translate(translate.x(), translate.y());
+		p.rotate(i);
+		p.translate(-1*translate.x(), -1*translate.y());
+		p.drawImage(0, 0, sprite);
+
+	}
+
+	timerAnimation = new QTimer();
+	connect(timerAnimation, SIGNAL(timeout()), this, SLOT(animate()));
+	timerAnimation->setInterval(ANIMATION_INTERVAL);
+}
+
+BGWidget::~BGWidget()
+{
+	for (int i = 0; i < SPRITE_MAX; i++) delete spritePositions[i];
+	for (int i = 0; i < 360; i++) delete rotatedSprites[i];
+	delete timerAnimation;
+}
+
+void BGWidget::paintEvent(QPaintEvent *event)
+{
+	QPainter p;
+	p.begin(this);
+	//p.setRenderHint(QPainter::Antialiasing);
+	for (int i = 0; i < SPRITE_MAX; i++)
+	{
+		QPoint point = spritePositions[i]->pos();
+		p.drawImage(point.x(), point.y(), *rotatedSprites[spritePositions[i]->getAngle()]);
+	}
+	p.end();
+}
+
+void BGWidget::animate()
+{
+	repaint();
+	for (int i = 0; i < SPRITE_MAX; i++)
+	{
+		spritePositions[i]->move();
+	}
+}
+
+void BGWidget::startAnimation()
+{
+	timerAnimation->start();
+}
+
+void BGWidget::stopAnimation()
+{
+	timerAnimation->stop();
+}
+
+void BGWidget::init()
+{
+	for (int i = 0; i < SPRITE_MAX; i++) spritePositions[i]->init();
+}