/// <summary>
/// Allows the screen to handle user input. Unlike Update, this method
/// is only called when the screen is active, and not when some other
/// screen has taken the focus.
/// </summary>
public virtual void HandleInput(InputState input)
{
}
/// <summary>
/// Responds to user input, changing the selected entry and accepting
/// or cancelling the menu.
/// </summary>
///
public override void HandleInput(InputState input)
{
TouchCollection touchState = TouchPanel.GetState();
bool touchDetected = false;
Vector2 touchPosition = new Vector2();
//interpert touch screen presses
foreach (TouchLocation location in touchState)
{
switch (location.State)
{
case TouchLocationState.Pressed:
touchDetected = true;
touchPosition = location.Position;
break;
case TouchLocationState.Moved:
break;
case TouchLocationState.Released:
break;
}
}
if (touchDetected)
{
foreach (MenuEntry menuEntry in menuEntries)
{
Rectangle touchRect = new Rectangle((int)touchPosition.X - 5, (int)touchPosition.Y - 5,
10, 10);
if (menuEntry.EntryPosition.Intersects(touchRect))
menuEntry.OnSelectEntry();
}
}
// Move to the previous menu entry?
if (input.MenuUp)
{
selectedEntry--;
if (selectedEntry < 0)
selectedEntry = menuEntries.Count - 1;
}
// Move to the next menu entry?
if (input.MenuDown)
{
selectedEntry++;
if (selectedEntry >= menuEntries.Count)
selectedEntry = 0;
}
// Accept or cancel the menu?
if (input.MenuSelect)
{
OnSelectEntry(selectedEntry);
}
else if (input.MenuCancel)
{
OnCancel();
}
}