Detect long touch - cocos2d-iphone

Question

I need to detect long touch in the game the game I am trying to make.How can I do so?
Other problem I am facing is to limit simultaneous touches. i.e the sprite won't jump if user touches more than two times immedeatly one after other.
Also is their a way by which I can add touch duration factor to the height of jump the sprite makes?
Thanks

Answer 1

how do you grab your touches? I always use the following methods:
- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
- (void)ccTouchMoved:(UITouch *)touchx withEvent:(UIEvent *)event
- (void)ccTouchEnded:(UITouch *)touchx withEvent:(UIEvent *)event
And in these methods you may take total control over all touches. For example remember the time the touch started:
self.startTime = [NSDate date];
for an instance variable startTime, or to check if a touch belongs to a certain object:
CGRectContainsPoint(self.rect, [self convertTouchToNodeSpaceAR:touch]);
This way you can easily implement your touch logic the way you like it...
A good way to do this is - I find - to define all the required variables within the object of the game, like...
#interface Enemy : CCSprite <CCTargetedTouchDelegate> {
EnemyState state;
NSInteger enemyID;
NSDate *startTime;
NSDate *endTime;
UITouch *lastTouch;
ADDED TO SHOW CONCRETE EXAMPLE CODE FOR ccTouchBegan:
- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
D_DBG (#"ENEMY ID %i",self.enemyID);
//implement your logic if a touch for this enemy is allowed or not
if (![self.delegate touchIsAllowed: enemyID touch: touch]) return NO;
//if the enemy is untouched, then may be touched
if ((state == kEnemyStateUngrabbed) && (![self containsTouchLocation:touch] )) return NO;
state = kEnemyStateGrabbed;
self.startTime = [NSDate date];
[self.delegate informAboutEnemyStarted: self.enemyID startTime: self.startTime atPoint: self.position];
return YES;
}