I want to do the credits screen for a game, but the credits consists in a series of images. I could not find a container that allowed me to insert multiple images and scroll them, so I created a ListBox with buttons in it. These buttons have only an image and are not clickable, so they act like just images. As far as putting the images in a container that allows me to scroll it, is already covered. The problem comes when I want them to autoscroll, I found around the web a series of autoscrolling a ListBox but nothing seem to fit into what I want to do.
Here is what i have:
Global variables for this class
GameTimer _timer = null;
int _currentIdx = 0;
int _elapsedTime;
const int TIMER_DELAY_IN_MILLIS = 1000;
When the application navigates into this page:
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
_elapsedTime = 0;
_timer = new GameTimer();
_timer.UpdateInterval = TimeSpan.FromTicks(333333);
_timer.Update += OnUpdate;
_timer.Start();
base.OnNavigatedTo(e);
}
When the application updates:
private void OnUpdate(object sender, GameTimerEventArgs e)
{
if (_elapsedTime > TIMER_DELAY_IN_MILLIS)
{
_elapsedTime -= TIMER_DELAY_IN_MILLIS;
Credits.UpdateLayout();
Credits.ScrollIntoView(Credits.Items[_currentIdx]);
System.Diagnostics.Debug.WriteLine("" + _currentIdx + " Update: " + e.ElapsedTime);
_currentIdx = ++_currentIdx % Credits.Items.Count;
}
_elapsedTime += e.ElapsedTime.Milliseconds;
}
As you can see, I do something like an update for this class and based on that the listbox scrolls to the button (view) that is in the next index of the list, however the scrolling I am trying to get is a smoother and more movie-like. I do not know if I am using the right container or if there is something bad with my algorithm, any kind of help would be very appreciated [:
