public override void Update(GameTime gameTime)
{
Input.Update();
ScreensToUpdate.Clear();
foreach (Screen current in Screens)
{
ScreensToUpdate.Add(current);
}
bool OtherScreenHasFocus = !base.Game.IsActive;
bool CoveredByOtherScreen = false;
while (ScreensToUpdate.Count > 0)
{
Screen screen = ScreensToUpdate[ScreensToUpdate.Count - 1];
ScreensToUpdate.RemoveAt(ScreensToUpdate.Count - 1);
screen.Update(gameTime, OtherScreenHasFocus, CoveredByOtherScreen, Input);
if (screen.ScreenState == ScreenState.TransitionOn || screen.ScreenState == ScreenState.Active)
{
if (!OtherScreenHasFocus)
{
OtherScreenHasFocus = true;
}
if (!screen.IsPopup)
{
CoveredByOtherScreen = true;
}
}
}
}
public void RemoveScreen(GameScreen screen)
{
if (IsInitialized)
{
screen.UnloadContent();
}
Screens.Remove(screen);
ScreensToUpdate.Remove(screen);
}
public void RemoveScreen(Screen screen)
{
bool isInitialized = Initialized;
if (isInitialized)
{
screen.UnloadContent();
}
Screens.Remove(screen);
ScreensToUpdate.Remove(screen);
}
/// <summary>
/// Allows the game to run logic such as updating the world,
/// checking for collisions, gathering input, and playing audio.
/// </summary>
/// <param name="gameTime">Provides a snapshot of timing values.</param>
protected override void Update(GameTime gameTime)
{
if (MediaPlayer.State != MediaState.Playing)
{
CurrentBackgroundSong++;
if (CurrentBackgroundSong > BackgroundSongs.Count - 1)
{
CurrentBackgroundSong = 0;
}
MediaPlayer.Play(BackgroundSongs[CurrentBackgroundSong]);
}
// Đọc Input
Input.Update();
ScreensToUpdate.Clear();
foreach (GameScreen screen in Screens)
{
ScreensToUpdate.Add(screen);
}
bool otherScreenHasFocus = !this.IsActive;
bool coveredByOtherScreen = false;
while (ScreensToUpdate.Count > 0)
{
GameScreen screen = ScreensToUpdate[ScreensToUpdate.Count - 1];
ScreensToUpdate.RemoveAt(ScreensToUpdate.Count - 1);
screen.Update(gameTime, otherScreenHasFocus, coveredByOtherScreen);
if (screen.ScreenState == ScreenState.TransitionOn ||
screen.ScreenState == ScreenState.Active)
{
if (!otherScreenHasFocus)
{
screen.HandleInput(Input);
otherScreenHasFocus = true;
}
if (!screen.IsPopup)
{
coveredByOtherScreen = true;
}
}
}
base.Update(gameTime);
}
public void Update(GameTime gameTime, IInputHandler input, bool otherWindowHasFocus)
{
//Make a copy of the master screen list, to avoid confusion if the process of updating one screen adds or removes others.
ScreensToUpdate.Clear();
//Update the top screen separate from all other screens.
if (null != TopScreen)
{
TopScreen.Update(gameTime, false, false);
input.HandleInput(TopScreen);
}
for (int i = 0; i < Screens.Count; i++)
{
ScreensToUpdate.Add(Screens[i]);
}
bool coveredByOtherScreen = false;
// Loop as long as there are screens waiting to be updated.
while (ScreensToUpdate.Count > 0)
{
// Pop the topmost screen off the waiting list.
var screen = ScreensToUpdate[ScreensToUpdate.Count - 1];
ScreensToUpdate.RemoveAt(ScreensToUpdate.Count - 1);
// Update the screen.
screen.Update(gameTime, otherWindowHasFocus, coveredByOtherScreen);
//If the screen is active, let it check the input
if (screen.IsActive)
{
input.HandleInput(screen);
//If this is a covering screen, let other screens know they are covered.
if (screen.CoverOtherScreens)
{
coveredByOtherScreen = true;
}
}
}
}
/// <summary>
/// Removes a screen from the screen stack
/// </summary>
public virtual void RemoveScreen(IScreen screen)
{
Screens.Remove(screen);
ScreensToUpdate.Remove(screen);
}
