public override void Update(GameTime gameTime)
{
GameScreen screen = null;
try
{
var flag1 = usingGamePad;
usingGamePad = false;
for (var index = 0; index < input.CurrentGamePadStates.Length; ++index)
{
if (input.CurrentGamePadStates[index].IsConnected)
{
usingGamePad = true;
}
}
input.Update();
screensToUpdate.Clear();
foreach (var gameScreen in screens)
{
screensToUpdate.Add(gameScreen);
}
if (screensToUpdate.Count == 0)
{
foreach (var gameScreen in screens)
{
screensToUpdate.Add(gameScreen);
}
}
var otherScreenHasFocus = !Game.IsActive;
var coveredByOtherScreen = false;
var flag2 = false;
while (screensToUpdate.Count > 0)
{
screen = screensToUpdate[screensToUpdate.Count - 1];
screensToUpdate.RemoveAt(screensToUpdate.Count - 1);
if (!otherScreenHasFocus &&
(screen.ScreenState == ScreenState.TransitionOn || screen.ScreenState == ScreenState.Active))
{
if (flag1 != usingGamePad)
{
screen.inputMethodChanged(usingGamePad);
}
screen.HandleInput(input);
flag2 = true;
}
screen.Update(gameTime, otherScreenHasFocus, coveredByOtherScreen);
if (flag2)
{
otherScreenHasFocus = true;
}
if ((screen.ScreenState == ScreenState.TransitionOn || screen.ScreenState == ScreenState.Active) &&
!screen.IsPopup)
{
coveredByOtherScreen = true;
}
}
if (!TraceEnabled)
{
return;
}
TraceScreens();
}
catch (Exception ex)
{
if (screen == null)
{
return;
}
RemoveScreen(screen);
}
}
public void AddScreen(GameScreen screen)
{
AddScreen(screen, controllingPlayer);
}
public void AddScreen(GameScreen screen, PlayerIndex? controllingPlayer)
{
screen.ControllingPlayer = controllingPlayer;
screen.ScreenManager = this;
screen.IsExiting = false;
if (isInitialized)
screen.LoadContent();
screens.Add(screen);
}
public void RemoveScreen(GameScreen screen)
{
if (isInitialized)
screen.UnloadContent();
screens.Remove(screen);
screensToUpdate.Remove(screen);
if (screens.Count > 0)
return;
handleCriticalError();
}
public void AddScreen(GameScreen screen)
{
AddScreen(screen, controllingPlayer);
}