UISwipeGestureRecognizer executes in an if/else statement when it should not - ios

Question

I am attempting to run an action in iOS 7 Sprite Kit when the user swipes the left half of the screen.
To accomplish this I created a for loop waiting for touch events and, on touch, there is an if statement that checks to see if the touch location is less than half of the view's bounds. The if statement itself is executing properly (the else half returns the proper NSLog if the touch is initiated on the right half of the screen). The action triggered by the UISwipeGestureRecognizer, however, is called regardless of where the touch is initiated. I have included a code sample below.
Is there is a reason this is not working as expected?
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[super touchesBegan:touches withEvent:event];
for (UITouch *touch in touches) {
CGPoint touchLocation = [touch locationInView:self.view];
NSLog(#"Touch location: %f, %f",touchLocation.x,touchLocation.y);
if (touchLocation.x<self.view.bounds.size.width/2) {
UISwipeGestureRecognizer *swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:(self) action:#selector(screenSwipedRight)];
swipeRight.numberOfTouchesRequired = 1;
swipeRight.direction=UISwipeGestureRecognizerDirectionRight;
[self.view addGestureRecognizer:(swipeRight)];
UISwipeGestureRecognizer *swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:(self) action:#selector(screenSwipedLeft)];
swipeLeft.numberOfTouchesRequired = 1;
swipeLeft.direction=UISwipeGestureRecognizerDirectionLeft;
[self.view addGestureRecognizer:(swipeLeft)];
UISwipeGestureRecognizer *swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:(self) action:#selector(screenSwipedUp)];
swipeUp.numberOfTouchesRequired = 1;
swipeUp.direction=UISwipeGestureRecognizerDirectionUp;
[self.view addGestureRecognizer:(swipeUp)];
}
else {
NSLog(#"Touches were on the right!");
}
}
}
-(void)screenSwipedRight
{
CGFloat percentToRight = 1-(self.playerOne.position.x / self.view.bounds.size.width);
NSTimeInterval timeToRight = self.horizontalRunSpeed * percentToRight;
NSLog(#"Percent to right = %f",percentToRight);
NSLog(#"Time to right = %f",timeToRight);
SKAction *moveNodeRight = [SKAction moveToX:self.view.bounds.size.width-self.playerOne.size.width duration:timeToRight];
[self.playerOne runAction:[SKAction sequence:#[moveNodeRight]]];
}

Answer 1

Is there is a reason this is not working as expected?
Yes. You are adding a new set of swipe gesture recognizers any time any touch begins on the left half of the screen. You are never removing them. You are never restricting the conditions for the gesture recognizer to begin.
This should fix your issue:
Delete your implementation of touchesBegan:withEvent:.
Add your gesture recognizers in viewDidLoad.
Set delegate = self for all of the gesture recognizers.
Add this code:
- (BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer {
CGPoint touchLocation = [touch locationInView:self.view];
NSLog(#"Touch location: %f, %f",touchLocation.x,touchLocation.y);
BOOL shouldBegin = (touchLocation.x < self.view.bounds.size.width / 2);
return shouldBegin;
}