UIScreenBase LoadScreen(UIScreenType screenType)
{
string fileName;
m_prefabFiles.TryGetValue(screenType, out fileName);
if (fileName == null)
{
Debug.LogError("Attempting to load screen '" + screenType.ToString() + "' which does not exist in UIManagerData!");
return(null);
}
UIScreenBase prefab = Resources.Load <UIScreenBase>(fileName);
if (prefab == null)
{
Debug.LogError("Could not load the ui prefab file: " + fileName);
return(null);
}
UIScreenBase screen = GameObject.Instantiate(prefab) as UIScreenBase;
GameObject go = screen.gameObject;
go.transform.SetParent(gameObject.transform);
go.SetActive(true);
return(screen);
}
int IncrementScreenPanelDepth(UIScreenBase screen, int increment)
{
int maxPanelDepth = 0;
int minPanelDepth = 0;
Canvas[] canvases = screen.gameObject.GetComponentsInChildren <Canvas>();
for (int i = 0; i < canvases.Length; ++i)
{
int depth = canvases[i].sortingOrder;
maxPanelDepth = System.Math.Max(maxPanelDepth, depth);
minPanelDepth = System.Math.Min(minPanelDepth, depth);
}
// if there are negative panel depths all the panels need to be moved forward
// enough to ensure that the negative are on top
if (minPanelDepth < 0)
{
increment += System.Math.Abs(minPanelDepth);
}
for (int i = 0; i < canvases.Length; ++i)
{
canvases[i].sortingOrder += increment;
}
return(maxPanelDepth + increment + 1);
}
public UIScreenBase SetTransitionScreen(UIScreenType screenType, UIScreenArgs args)
{
if (m_transitionScreen != null)
{
m_transitionScreen.ReleaseResources();
m_transitionScreen.transform.parent = null;
m_transitionScreen.gameObject.SetActive(false);
GameObject.Destroy(m_transitionScreen.gameObject);
}
if (screenType == UIScreenType.None)
{
m_transitionScreen = null;
return(null);
}
m_transitionScreen = LoadScreen(screenType) as UIScreenBase;
if (m_transitionScreen == null)
{
return(null);
}
IncrementScreenPanelDepth(m_transitionScreen, m_transitionPanelDepth);
m_transitionScreen.Initialize(args);
return(m_transitionScreen);
}
public UIScreenBase SetHUD(UIScreenType screenType, UIScreenArgs args)
{
if (m_hud != null)
{
m_hud.ReleaseResources();
m_hud.transform.parent = null;
m_hud.gameObject.SetActive(false);
GameObject.Destroy(m_hud.gameObject);
}
if (screenType == UIScreenType.None)
{
m_hud = null;
return(null);
}
m_hud = LoadScreen(screenType);
if (m_hud == null)
{
return(null);
}
m_hud.Initialize(args);
return(m_hud);
}
public void PopAllButTopScreen()
{
if (m_screenStack.Count <= 1)
{
return;
}
UIScreenBase topScreen = m_screenStack.Peek();
m_screenStack.Pop();
PopAllScreens();
m_screenStack.Push(topScreen);
}
public void PopScreen()
{
if (m_screenStack.Count == 0)
{
return;
}
UIScreenBase old = m_screenStack.Peek();
m_screenStack.Pop();
old.ReleaseResources();
old.transform.SetParent(null);
GameObject.Destroy(old.gameObject);
}
public UIScreenBase PushScreen(UIScreenType screenType, UIScreenArgs args)
{
UIScreenBase screen = LoadScreen(screenType);
if (screen == null)
{
return(null);
}
m_currentPanelDepth = IncrementScreenPanelDepth(screen, m_currentPanelDepth);
m_screenStack.Push(screen);
screen.Initialize(args);
return(screen);
}
public void HidePreviousScreen()
{
if (m_screenStack.Count <= 1)
{
return;
}
UIScreenBase topScreen = m_screenStack.Peek();
m_screenStack.Pop();
UIScreenBase previousScreen = m_screenStack.Peek();
previousScreen.Hide();
m_screenStack.Push(topScreen);
}