//set all screens back to their original state
public static void ResumeAll()
{
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.Overridable)
{
foundScreen.State = foundScreen.LastState;
}
}
}
//Find if a screen is loaded
public static bool Find(string name)
{
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (name == foundScreen.Name)
{
return(true);
}
}
return(false);
}
//remove a screen
public static void RemoveScreen(string screen)
{
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.Name == screen)
{
foundScreen.Remove();
break;
}
}
}
//Manually set the state of a screen from another screen
public static void SetState(ScreenState State, string name)
{
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (name.Equals(foundScreen.Name))
{
foundScreen.State = State;
foundScreen.OnStateChange();
}
}
}
//Manually set the state of a screen from another screen
public static void SetActive(string id)
{
BaseScreen nextScreen = Find(id);
if (nextScreen != null)
{
if (currentScreen != null)
{
currentScreen.Unload();
}
currentScreen = nextScreen;
currentScreen.Load();
}
}
//set all screens to frozen if overridable, exception for focused screen
public static void FreezeAll(string exception)
{
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.Name != exception)
{
if (foundScreen.Overridable)
{
foundScreen.LastState = foundScreen.State;
foundScreen.State = ScreenState.Frozen;
}
}
}
}
//MURDER all screens, option to force if overridable doesn't matter(ex. game over), also option for exception so you don't delete all your screens
public static void KillAll(bool force, string exception)
{
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.Name != exception)
{
if (force)
{
foundScreen.State = ScreenState.Shutdown;
}
else
{
if (foundScreen.Overridable)
{
foundScreen.State = ScreenState.Shutdown;
}
}
}
}
}
public static void PollInput()
{
MouseState mouseState = Mouse.GetState();
if (mouseState.LeftButton == ButtonState.Pressed && !lmbClicked)
{
lmbClicked = true;
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.State == ScreenState.Active)
{
foundScreen.OnClick(true, mouseState.X, mouseState.Y);
}
}
}
else if (mouseState.LeftButton != ButtonState.Pressed && lmbClicked)
{
lmbClicked = false;
}
if (mouseState.RightButton == ButtonState.Pressed && !rmbClicked)
{
rmbClicked = true;
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.State == ScreenState.Active)
{
foundScreen.OnClick(false, mouseState.X, mouseState.Y);
}
}
}
else if (mouseState.RightButton != ButtonState.Pressed && rmbClicked)
{
rmbClicked = false;
}
}
//Add a new screen
public static void AddScreen(BaseScreen screen)
{
Screens.Add(screen);
}
//Add a new screen
public static void RegisterScreen(BaseScreen screen)
{
Screens.Add(screen);
}
public void Update()
{
//We iterate backwards here so that we can remove from the list more intuitvley and avoid concurent modifications.
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
if (foundScreen.State == ScreenState.Shutdown)
{
Screens.RemoveAt(i);
}
else
{
foundScreen.Focused = false;
}
}
//Find the screen to focus on
if (Screens.Count > 0)
{
for (int i = 0; i < Screens.Count; i++)
{
if (Screens[i].GrabFocus)
{
Screens[i].Focused = true;
break;
}
}
}
PollInput();
//Update the appropriate screens
for (int i = Screens.Count() - 1; i >= 0; i--)
{
BaseScreen foundScreen = Screens[i];
switch (foundScreen.State)
{
case ScreenState.Active:
foundScreen.Update();
foundScreen.HandleInput();
break;
case ScreenState.Frozen:
foundScreen.Update();
break;
case ScreenState.Background:
foundScreen.Update();
break;
case ScreenState.Hiding:
foundScreen.Update();
foundScreen.HandleInput();
break;
case ScreenState.Paused:
foundScreen.HandleInput();
break;
}
}
}
