/// <summary>
/// Since layer (and scene) opacity is broken this implements a workaround for a creating a fading transition.
/// </summary>
/// <param name="guiLayer1"></param>
/// <param name="guiLayer2"></param>
public static void TransitionFadingFromTo(MyLayer guiLayer1, MyLayer guiLayer2, MyLayer layer1, MyLayer layer2, float duration)
{
var fadeNode = new CCDrawNode();
var bigRect = new CCRect(-100000000, -100000000, 1000000000, 1000000000);
fadeNode.BlendFunc = CCBlendFunc.NonPremultiplied;
fadeNode.DrawRect(bigRect, CCColor4B.Transparent);
guiLayer1.AddChild(fadeNode, int.MaxValue);
void FadeIn(float prog, float du)
{
fadeNode.Clear(); fadeNode.DrawRect(bigRect, new CCColor4B(0f, 0f, 0f, prog));
}
void FadeOut(float prog, float du)
{
fadeNode.Clear(); fadeNode.DrawRect(bigRect, new CCColor4B(0f, 0f, 0f, 1 - prog));
}
fadeNode.AddAction(new CCSequence(new CCCallFiniteTimeFunc(duration / 2, FadeIn),
Constants.oS != Constants.OS.WINDOWS ?
new CCCallFunc(() =>
{
var director = layer1.Director;
var scene = director.RunningScene;
var gv = scene.GameView;
fadeNode.RemoveFromParent();
// the following are attempts at fixing the memory leak (which all mostly failed)
// created by the fact that layers are not released for some reason
layer1.RemoveAllListeners();
guiLayer1.RemoveAllListeners();
layer1.RemoveEventListeners();
guiLayer1.RemoveEventListeners();
layer1.RemoveFromParent();
guiLayer1.RemoveFromParent();
layer1.Clear();
guiLayer1.Clear();
layer1.Cleanup();
guiLayer1.Cleanup();
layer1.Dispose();
guiLayer1.Dispose();
scene.RemoveAllListeners();
scene.RemoveAllChildren();
scene.StopAllActions();
scene.UnscheduleAll();
scene.RemoveFromParent();
scene.Cleanup();
scene.Dispose();
var scene2 = new CCScene(gv);
scene2.AddLayer(guiLayer2);
scene2.AddLayer(layer2, int.MinValue);
guiLayer2.AddChild(fadeNode, int.MaxValue);
director.ResetSceneStack();
director.ReplaceScene(scene2);
fadeNode.AddAction(new CCSequence(new CCCallFiniteTimeFunc(duration / 2, FadeOut),
new CCRemoveSelf()));
})
:
new CCCallFunc(() =>
{
// this part is how it needs to be done in order to work on the old CocosSharp version
//where GameView.Get fails (i.e. the DX-version)
layer1.RemoveAllListeners();
guiLayer1.RemoveAllListeners();
var parent = layer1.Parent;
layer1.RemoveFromParent();
guiLayer1.RemoveFromParent();
parent.AddChild(guiLayer2);
parent.AddChild(layer2, int.MinValue);
fadeNode.RemoveFromParent();
guiLayer2.AddChild(fadeNode, int.MaxValue);
fadeNode.AddAction(new CCSequence(new CCCallFiniteTimeFunc(duration / 2, FadeOut),
new CCRemoveSelf()));
})
));
}
