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mithril
Member
I've got a HUD element that I want to remain on screen as long as there's a finger touching the screen. I tried fading it out on the ccTouchesEnded event but it triggers even though I had 2 fingers on screen and then lifted 1.
Also tried checking [touches count] == 1 but then it won't trigger if I simultaneously remove multiple fingers.
Any ideas how to check how many touch points remain after the ccTouchesEnded event?
i'm not exactly sure but try
if ([touches count] == 1 || [touches count] == 0)
{
...code
}but what i do in my game is all the different touch options are used but just adjust a bool value on whether or not something is touching. i actually do the stuff in my update part
Which ccTouchesEnded ended are you checking? There are 2 different ways you can handle touches.
One method is to capture all of the touches in a layer if that layer returns a BOOL of YES, the other method is to create a touch handler and do all of the management yourself.
Hard to say for sure since you didn't post your code for your touch events.
Having to poke a guess at the solution perhaps what you want to do is create an array to monitor the touch hash, and then you can check your array to see how many touches your window currently has.
Then you can check your [array count] to see how many touches you have. Remember to remove objects from the array in the TouchesEnded, and add them in the begin.
mithril
Member
Could you elaborate on how I could "create an array to monitor the touch hash"?
I currently just have set up like this:
-(id)init {
if ((self = [super init])) {
...
isTouchEnabled = YES;
}
return self;
}
-(void)ccTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[miniMap fadeIn];
}
-(void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
[miniMap fadeOut];
}
robodude666
Member
Have an NSMutableArray or c-style array which stores all of your touches. Each touch has a has associated with it. The hash allows you to determine where a particular touch is, if it left the screen and if it moved. This hash can be found by accessing hash on the UITouch object.
You could do something fun like this.
- (void) ccTouchesBegan:(NSSet*)touches withEvent:(UIEvent*)event
{
NSSet *allTouches = [event allTouches];
for(UITouch* touch in allTouches)
{
NSUInteger touchHash = [touch hash];
// Add touchHash to allTouchHashesArray
}
}
- (void)ccTouchesEnded:(NSSet*)touches withEvent:(UIEvent*)event
{
for(UITouch *touch in touches)
{
if(this has exists in allTouchHashesArray)
//remove it FromAllTouchHashes
}
}You can do a similar thing for ccTouchesMoved to see where a particular touch went, etc.
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