How to get app's ViewController on MacOS target

cocos2d-x C++
1

Hi,

I’d like to add GameCenter to my game.
For that, I need an access to the game’s viewcontroller.

I successfully did it on iOS doing that

GKMatchmakerViewController* mmvc = [[GKMatchmakerViewController alloc] initWithMatchRequest:request];
_mainViewController = [[[UIApplication sharedApplication] keyWindow] rootViewController];
[_mainViewController presentViewController:mmvc animated:YES completion:nil];

But now, I don’t know how to do the same on MacOS.
I have a GKMatchmakerViewController that I need to present.

Any idea on how to do that using cocos2d-x (>= 3.6)?
Thanks

2

Ok, finally found some time to try to do this.

For those interested, here’s how to create a valid (empty) NSViewController on MacOS (required for some GameCenter features):

First, you create a custom NSViewController class:

#if CC_TARGET_PLATFORM == CC_PLATFORM_MAC
@interface MyMainViewController : NSViewController
@end
@implementation MyMainViewController
-(void)loadView
{
	self.view = [[NSView alloc] init];
}
@end
#endif /* !MAC */

Then you initialize a “_mainViewController” variable of type NSViewController (UIViewController on iOS):

#if CC_TARGET_PLATFORM == CC_PLATFORM_IOS
		_mainViewController = [[[UIApplication sharedApplication] keyWindow] rootViewController];
#else
		_mainViewController = [[MyMainViewController alloc] init];
		auto mainWindow = [[NSApplication sharedApplication] mainWindow];
		[mainWindow.contentView addSubview:_mainViewController.view];
		_mainViewController.view.frame = ((NSView*)mainWindow.contentView).bounds;
#endif

Finally when you need to prevent a viewcontroller, use your “_mainViewController” variable, like for creation a multiplayer games:

	GKMatchmakerViewController* mmvc = [[GKMatchmakerViewController alloc] initWithMatchRequest:request];
	mmvc.matchmakerDelegate = self;	
#if CC_TARGET_PLATFORM == CC_PLATFORM_IOS
	[_mainViewController presentViewController:mmvc animated:YES completion:nil];
#else
	[_mainViewController presentViewControllerAsModalWindow:mmvc];
#endif

Hope this will help some ppl wanting to create games using GameCenter on both iOS and MacOS!

kiki