| public Activity ( bool firstTimeCalled ) : void | ||
| firstTimeCalled | bool | |
| Результат | void | |
private static Screen LoadScreen(string screen, Layer layerToLoadScreenOn, bool addToManagers, bool makeCurrentScreen)
{
mNextScreenLayer = layerToLoadScreenOn;
Screen newScreen = null;
Type typeOfScreen = MainAssembly.GetType(screen);
if (typeOfScreen == null)
{
throw new System.ArgumentException("There is no " + screen + " class defined in your project or linked assemblies.");
}
if (screen != null && screen != "")
{
#if XBOX360
newScreen = (Screen)Activator.CreateInstance(typeOfScreen);
#else
newScreen = (Screen)Activator.CreateInstance(typeOfScreen, new object[0]);
#endif
}
if (newScreen != null)
{
FlatRedBall.Input.InputManager.CurrentFrameInputSuspended = true;
if (addToManagers)
{
// We do this so that new Screens are the CurrentScreen in Activity.
// This is useful in custom logic.
if (makeCurrentScreen)
{
mCurrentScreen = newScreen;
}
newScreen.Initialize(addToManagers);
newScreen.ApplyRestartVariables();
}
mSuppressStatePush = false;
nextCallback?.Invoke(newScreen);
nextCallback = null;
if (addToManagers)
{
newScreen.Activity(true);
newScreen.ActivityCallCount++;
}
}
return(newScreen);
}
/// <summary>
/// Calls activity on the current screen and checks to see if screen
/// activity is finished. If activity is finished, the current Screen's
/// NextScreen is loaded.
/// </summary>
#endregion
public static void Activity()
{
if (mCurrentScreen == null)
{
return;
}
mCurrentScreen.Activity(false);
mCurrentScreen.ActivityCallCount++;
if (mCurrentScreen.ActivityCallCount == 2 && mWasFixedTimeStep.HasValue)
{
#if !FRB_MDX
FlatRedBallServices.Game.IsFixedTimeStep = mWasFixedTimeStep.Value;
TimeManager.TimeFactor = mLastTimeFactor.Value;
#endif
}
if (mCurrentScreen.IsActivityFinished)
{
string type = mCurrentScreen.NextScreen;
Screen asyncLoadedScreen = mCurrentScreen.mNextScreenToLoadAsync;
mWasFixedTimeStep = FlatRedBallServices.Game.IsFixedTimeStep;
mLastTimeFactor = TimeManager.TimeFactor;
FlatRedBallServices.Game.IsFixedTimeStep = false;
TimeManager.TimeFactor = 0;
GuiManager.Cursor.IgnoreInputThisFrame = true;
mCurrentScreen.Destroy();
// check to see if there is any leftover data
CheckAndWarnIfNotEmpty();
// Let's perform a GC here.
GC.Collect();
// Not sure why this started to freeze on Android in the automated test project
// on April 22, 2015. I'm commenting it out because I don't think we need to wait
// for finalizers, and we can just continue on. Maybe try to bring the code back
// on Android in the future too.
// March 16, 2017 - Desktop GL too, not sure why...
#if !ANDROID && !DESKTOP_GL
GC.WaitForPendingFinalizers();
#endif
if (asyncLoadedScreen == null)
{
// Loads the Screen, suspends input for one frame, and
// calls Activity on the Screen.
// The Activity call is required for objects like SpriteGrids
// which need to be managed internally.
// No need to assign mCurrentScreen - this is done by the 4th argument "true"
//mCurrentScreen =
LoadScreen(type, null, true, true);
}
else
{
mCurrentScreen = asyncLoadedScreen;
nextCallback?.Invoke(mCurrentScreen);
nextCallback = null;
mCurrentScreen.AddToManagers();
mCurrentScreen.Activity(true);
mCurrentScreen.ActivityCallCount++;
}
mNumberOfFramesSinceLastScreenLoad = 0;
}
else
{
mNumberOfFramesSinceLastScreenLoad++;
}
}