void StarChangedHandler(object sender, StarChangedEventArgs e)
{
if (e.Removed)
{
StarControl starControl = _stars[e.StarThatChanged];
_stars.Remove(e.StarThatChanged);
_fadedStars.Add(starControl);
starControl.FadeOut();
}
else
{
StarControl newStar;
if (_stars.ContainsKey(e.StarThatChanged))
{
newStar = _stars[e.StarThatChanged];
}
else
{
newStar = new StarControl();
_stars[e.StarThatChanged] = newStar;
newStar.FadeIn();
BeeStarHelper.SendToBack(newStar);
_sprites.Add(newStar);
}
BeeStarHelper.SetCanvasLocation(
newStar, e.StarThatChanged.Location.X, e.StarThatChanged.Location.Y);
}
}
void StarChangedHandler(object sender, StarChangedEventArgs e)
{
StarControl starControl = null;
if (_stars.ContainsKey(e.StarThatChanged))
{
starControl = _stars[e.StarThatChanged];
}
if (e.Removed && starControl != null)
{
_fadedStars.Add(starControl);
_stars.Remove(e.StarThatChanged);
starControl.FadeOut();
return;
}
else if (starControl == null)
{
starControl = new StarControl();
if (_stars.ContainsKey(e.StarThatChanged))
{
_stars[e.StarThatChanged] = starControl;
}
else
{
_stars.Add(e.StarThatChanged, starControl);
}
_sprites.Add(starControl);
starControl.FadeIn();
BeeStarHelper.SendToBack(starControl);
}
BeeStarHelper.SetCanvasLocation(starControl, e.StarThatChanged.Location.X, e.StarThatChanged.Location.Y);
}
private void _model_StarChanged(object sender, StarChangedEventArgs e)
{
if (e.Removed && _stars.ContainsKey(e.StarThatChanged))
{
StarControl starRemoved = _stars[e.StarThatChanged];
_fadedStars.Add(starRemoved);
_stars.Remove(e.StarThatChanged);
starRemoved.FadeOut();
}
else
{
StarControl starToBeShown;
if (_stars.ContainsKey(e.StarThatChanged))
{
starToBeShown = _stars[e.StarThatChanged];
}
else
{
starToBeShown = new StarControl();
starToBeShown.FadeIn();
_sprites.Add(starToBeShown);
BeeStarHelper.SentToBack(starToBeShown);
}
BeeStarHelper.SetCanvasLocation(starToBeShown, e.StarThatChanged.Location.X, e.StarThatChanged.Location.Y);
}
}
private void StarChangedHandler(object sender, StarChangedEventArgs e)
{
if (_stars.ContainsKey(e.StarThatChanged))
{
if (e.Removed)
{
_fadedStars.Add(_stars[e.StarThatChanged]);
_stars[e.StarThatChanged].FadeOut();
_stars.Remove(e.StarThatChanged);
}
else
{
BeeStarHelper.SetCanvasLocation(_stars[e.StarThatChanged], e.StarThatChanged.Location.X, e.StarThatChanged.Location.Y);
}
}
else
{
StarControl newStarControl = new StarControl();
newStarControl.FadeIn();
_stars.Add(e.StarThatChanged, newStarControl);
_sprites.Add(newStarControl);
BeeStarHelper.SendToBack(newStarControl);
BeeStarHelper.SetCanvasLocation(newStarControl, e.StarThatChanged.Location.X, e.StarThatChanged.Location.Y);
}
}
private void BeeMovedHandler(object sender, BeeMovedEventArgs e)
{
if (_bees.ContainsKey(e.BeeThatMoved))
{
BeeStarHelper.MoveElementOnCanvas(_bees[e.BeeThatMoved], e.X, e.Y);
}
else
{
AnimatedImage newAnimatedImage = BeeStarHelper.BeeFactory(e.BeeThatMoved.Width, e.BeeThatMoved.Height, TimeSpan.FromMilliseconds(20));
BeeStarHelper.SetCanvasLocation(newAnimatedImage, e.X, e.Y);
_bees[e.BeeThatMoved] = newAnimatedImage;
_sprites.Add(newAnimatedImage);
}
}
void BeeMovedHandler(object sender, BeeMovedEventArgs e)
{
if (!_bees.ContainsKey(e.BeeThatMoved))
{
AnimatedImage beeControl = BeeStarHelper.BeeFactory(e.BeeThatMoved.Width, e.BeeThatMoved.Height, TimeSpan.FromMilliseconds(20));
BeeStarHelper.SetCanvasLocation(beeControl, e.X, e.Y);
_bees[e.BeeThatMoved] = beeControl;
_sprites.Add(beeControl);
}
else
{
AnimatedImage beeImageMoved = _bees[e.BeeThatMoved];
BeeStarHelper.MoveElementOnCanvas(beeImageMoved, e.X, e.Y);
}
}
private void BeeMovedHandler(object sender, BeeMovedEventArgs e)
{
if (_bees.ContainsKey(e.BeeThatMoved))
{
BeeStarHelper.MoveElememtOnCanvas(_bees[e.BeeThatMoved], e.X, e.Y);
}
else
{
int newBeeSize = _random.Next(50, 100);
AnimatedImage newBeeImage = BeeStarHelper.BeeFactory(newBeeSize, newBeeSize, TimeSpan.FromMilliseconds(50));
BeeStarHelper.SetCanvasLocation(newBeeImage, e.X, e.Y);
_bees.Add(e.BeeThatMoved, newBeeImage);
_sprites.Add(newBeeImage);
}
}
private void _model_BeeMoved(object sender, BeeMovedEventArgs e)
{
if (!_bees.ContainsKey(e.BeeThatMoved) || (_bees.ContainsKey(e.BeeThatMoved) && _bees[e.BeeThatMoved] == null))
{
AnimatedImage image =
BeeStarHelper.BeeFactory(e.BeeThatMoved.Width, e.BeeThatMoved.Height,
TimeSpan.FromMilliseconds(50));
BeeStarHelper.SetCanvasLocation(image, e.X, e.Y);
_bees.Add(e.BeeThatMoved, image);
_sprites.Add(image);
}
else
{
AnimatedImage imageToMove = _bees[e.BeeThatMoved];
BeeStarHelper.MoveElementOnCanvas(imageToMove, e.X, e.Y);
}
}
void StarChangedHandler(object sender, StarChangedEventArgs e)
{
// The _stars dictionary works just like the _bees one, except that it maps Star objects
// to their corresponding StarControl controls. The EventArgs contains references to
// the Star object (which has a Location property) and a Boolean to tell you if the star
// was removed. If it is then we want it to fade out, so remove it from _stars, add it
// to _fadedStars, and call its FadeOut() method (it'll be removed from _sprites the next
// time the Update() method is called, which is why we set the timer’s tick interval to
// be greater than the StarControl's fade out animation).
if (e.Removed)
{
StarControl starControl = _stars[e.StarThatChanged];
_stars.Remove(e.StarThatChanged);
_fadedStars.Add(starControl);
starControl.FadeOut();
}
//
// If the star is not being removed, then check to see if _stars contains it - if so, get
// the StarControl reference; if not, you'll need to create a new StarControl, fade it in,
// add it to _sprites, and send it to back so the bees can fly in front of it. Then set
// the canvas location for the StarControl.
else
{
StarControl starControl;
if (!_stars.ContainsKey(e.StarThatChanged))
{
starControl = new StarControl();
_stars.Add(e.StarThatChanged, starControl);
starControl.FadeIn();
starControl.Rotate(e.StarThatChanged.Rotating);
_sprites.Add(starControl);
BeeStarHelper.SendToBack(starControl);
}
else
{
starControl = _stars[e.StarThatChanged];
}
BeeStarHelper.SetCanvasLocation(starControl, e.StarThatChanged.Location.X, e.StarThatChanged.Location.Y);
}
}
void BeeMovedHandler(object sender, BeeMovedEventArgs e)
{
// The _bees dictionary maps Bee objects in the Model to AnimatedImage controls
// in the view. When a bee is moved, the BeeViewModel fires its BeeMoved event to
// tell anyone listening which bee moved and its new location. If the _bees
// dictionary doesn't already contain an AnimatedImage control for the bee, it needs
// to create a new one, set its canvas location, and update both _bees and _sprites.
// If the _bees dictionary already has it, then we just need to look up the corresponding
// AnimatedImage control and move it on the canvas to its new location with an animation.
if (!_bees.ContainsKey(e.BeeThatMoved))
{
AnimatedImage beeControl = BeeStarHelper.BeeFactory(e.BeeThatMoved.Width, e.BeeThatMoved.Height, TimeSpan.FromMilliseconds(20));
BeeStarHelper.SetCanvasLocation(beeControl, e.X, e.Y);
_bees[e.BeeThatMoved] = beeControl;
_sprites.Add(beeControl);
}
else
{
BeeStarHelper.MoveElementOnCanvas(_bees[e.BeeThatMoved], e.X, e.Y);
}
}