/// <summary>
/// Allows each screen to run logic.
/// </summary>
public override void Update(GameTime gameTime)
{
UpdateTouchPanelSize();
// Read the keyboard and gamepad.
if (!SuppressInputUpdate)
{
_input.Update(gameTime);
}
SuppressInputUpdate = false;
// Make a copy of the master screen list, to avoid confusion if
// the process of updating one screen adds or removes others.
_tempScreensList.Clear();
foreach (GameScreen screen in _screens)
{
_tempScreensList.Add(screen);
}
bool otherScreenHasFocus = !Game.IsActive;
bool coveredByOtherScreen = false;
// Loop as long as there are screens waiting to be updated.
while (_tempScreensList.Count > 0)
{
// Pop the topmost screen off the waiting list.
GameScreen screen = _tempScreensList[_tempScreensList.Count - 1];
_tempScreensList.RemoveAt(_tempScreensList.Count - 1);
// Update the screen.
screen.Update(gameTime, otherScreenHasFocus, coveredByOtherScreen);
if (screen.ScreenState == ScreenState.TransitionOn ||
screen.ScreenState == ScreenState.Active)
{
// If this is the first active screen we came across,
// give it a chance to handle input.
if (!otherScreenHasFocus)
{
screen.HandleInput(gameTime, _input);
otherScreenHasFocus = true;
}
// If this is an active non-popup, inform any subsequent
// screens that they are covered by it.
if (!screen.IsPopup)
{
coveredByOtherScreen = true;
}
}
}
ScrollableGame.End();
// Print debug trace?
if (_traceEnabled)
{
TraceScreens();
}
}
public override void Update(GameTime gameTime)
{
if (!Enabled)
{
return;
}
bool scrollDrag = false;
if (_scroll != null)
{
_scroll.Update(gameTime);
scrollDrag = _scroll.Draging || _scroll.Hits;
}
if (!scrollDrag)
{
// Select for Drag
if (ScrollableGame.CheckLeftPressed(true))
{
if (_rect.Contains(ScrollableGame.MousePoint))
{
_draging = true;
_draggedDifInicial = _draggedDif = ScrollableGame.MousePos;
}
}
// Dragging
if (_draging && ScrollableGame.CheckLeftDown())
{
if (Horizontal)
{
var pos = ScrollableGame.MousePos.X - _draggedDif.X;
_draggedDif = ScrollableGame.MousePos;
PosDif -= (int)pos;
if (Math.Abs(ScrollableGame.MousePos.X - _draggedDifInicial.X) > 5)
{
Button.CancelClick = true;
}
var widthDif = ContentSize - Width;
if (widthDif <= 0 || PosDif < 0)
{
PosDif = 0;
}
else if (widthDif > 0 && PosDif > widthDif)
{
PosDif = widthDif;
}
if (widthDif > 0)
{
Percentage = PosDif / widthDif;
}
}
else
{
var pos = ScrollableGame.MousePos.Y - _draggedDif.Y;
_draggedDif = ScrollableGame.MousePos;
PosDif -= (int)pos;
if (Math.Abs(ScrollableGame.MousePos.Y - _draggedDifInicial.Y) > 5)
{
Button.CancelClick = true;
}
var heightDif = ContentSize - Height;
if (heightDif <= 0 || PosDif < 0)
{
PosDif = 0;
}
else if (heightDif > 0 && PosDif > heightDif)
{
PosDif = heightDif;
}
if (heightDif > 0)
{
Percentage = PosDif / heightDif;
}
}
}
// Drop
if (ScrollableGame.CheckLeftReleased()
#if SILVERLIGHT
|| !_rect.Contains(ScrollableGame.MousePoint)
#endif
)
{
_draging = false;
#if SILVERLIGHT
Microsoft.Xna.Framework.Input.Mouse.LeftButtonDown = false;
#endif
}
ScrollableGame.Begin(this);
if (_scrollable != null)
{
_scrollable.Update(gameTime);
}
ScrollableGame.End(this);
}
UpdateContentSize();
base.Update(gameTime);
}
