cocos2d swipe detection

cocos2swipedetection.m

#import "cocos2d.h"
#import "MyLayer.h"

// register those in MyLayer.h
//CGPoint startLocation;
// CGPoint endLocation;


@implementation MyLayer

- (void)registerWithTouchDispatcher
{
	[[CCDirector sharedDirector].touchDispatcher addTargetedDelegate:self priority:-1 swallowsTouches:YES];
}

-(void)unregisterWithTouchDispatcher
{
    [[CCDirector sharedDirector].touchDispatcher removeDelegate:self];
}

-(void) cleanup
{
    [super cleanup];
    [self unregisterWithTouchDispatcher];
}

- (BOOL)ccTouchBegan:(UITouch *)touch withEvent:(UIEvent *)event
{
    CGPoint touchLocation = [touch locationInView: [touch view]];
    touchLocation = [[CCDirector sharedDirector] convertToGL: touchLocation];
    touchLocation = [self convertToNodeSpace:touchLocation];
    
    startLocation = touchLocation;

    // tell cocos2d that we want to receive (and swallow) the touches
    return YES;
}

-(void) ccTouchEnded:(UITouch *)touch withEvent:(UIEvent *)event {
    CGPoint touchLocation = [touch locationInView: [touch view]];
    touchLocation = [[CCDirector sharedDirector] convertToGL: touchLocation];
    touchLocation = [self convertToNodeSpace:touchLocation];
    endLocation = touchLocation;
    
    // Compare difference in distance
    if (abs(startLocation.y - endLocation.y) > 100 || abs(startLocation.x - endLocation.x) > 100 ) {
        // we have a swipe
    }
}
@end