Distance between two points in cocos2d

Distance between two points in cocos2d

CGPoint beforePoint,afterPoint;

CGFloat xDist = (beforePoint.x - afterPoint.x);

CGFloat yDist = (beforePoint.y - afterPoint.y);

CGFloat distance = sqrt((xDist * xDist) + (yDist * yDist));

CCLOG(@"distance is %f",distance);