Multitouch in a CCLayer « cocos2d for iPhone

Multitouch in a CCLayer

(5 posts) (2 voices)

Tags:

Joshua Goossen
Member
I know that there are a lot of posts about multi touch, and I've looked at all of them, but after trying many suggestion I still can't get it to work.

I am simply trying to get my main layer to register multiple touches.

This is what I have done:

I setMultipleTouchEnabled: in the appDelegate's applicationDidFinishLaunching: method.
```
EAGLView *glView = [EAGLView viewWithFrame:[window bounds]
								   pixelFormat:kEAGLColorFormatRGB565	// kEAGLColorFormatRGBA8
								   depthFormat:0						// GL_DEPTH_COMPONENT16_OES
						];

   [glView setMultipleTouchEnabled:YES];

	// attach the openglView to the director
	[director setOpenGLView:glView];
```
I put this in the layer that I want to register multiple touches:
```
- (void)onEnter {

	[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:YES];
	[super onEnter];

}

- (void)onExit
{
	[[CCTouchDispatcher sharedDispatcher] removeDelegate:self];
	[super onExit];
}
```
I then used

- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event

and

- (void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event

With this setup it registers one touch at a time, but the multiple touch just does not work.
I just can't see what I am missing. I have looked everywhere and I just can't see what I am doing wrong.
It just seems to me that it should work.
Posted 1 year ago #

cocos
Member

Have you tried this:

- (void)onEnter {

	[[CCTouchDispatcher sharedDispatcher] addTargetedDelegate:self priority:0 swallowsTouches:NO];
	[super onEnter];

}

Posted 1 year ago #

Joshua Goossen
Member

I just tried that, but it has no effect.

Posted 1 year ago #
Joshua Goossen
Member

I just included:

CCLOG(@"multipleTouchEnabled: %i",[[CCDirector sharedDirector] openGLView].multipleTouchEnabled);

in ccTouchBegan: to check if for some reason it was not getting enabled in the appDelegate.

And it does return "multipleTouchEnabled: 1" so that is not the problem.

Posted 1 year ago #
Joshua Goossen
Member

I figured out that it was a weird bug caused by not putting my ads in the root viewController. It was hard to find because I had implemented the ads a while back and it all seemed to work fine until this. I only figured this out because I began commenting out code until the multiple touch worked.

Lesson: NEVER put ads in anything other than the root view controller.

Posted 1 year ago #

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