How to handle sideways swipes - swift

Question

I am creating a game, where you control using swipes and I wanted to know if it is possible to handle sideways swipes using UIGestureRecodnizer?
If so how do I do it.
In other word:
Instead of having 4 directions, how do I get 8:
From up,down,right,left to upleft,upright,downright,downleft,up,down,right,left ?
Also how do can I properly differ between a double swipe and a two single swipes, does UIGestureRecognizer have an inbuilt timeout?

Answer 1

This could use some cleaning up but it works:
// a uiview that tracks touches in 8 directions when swiped
class TouchRecognizer: UIView{
// used for calculating degree between touches
var startTouch: CGPoint = CGPoint(x: 0, y: 0)
var endTouch: CGPoint = CGPoint(x: 0, y: 0)
// gets initial touch
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first!
let location = touch.location(in: self)
startTouch = location
}
// gets end touch, then checks angle
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first!
let location = touch.location(in: self)
endTouch = location
HandleSwipe()
}
// Gets The Degree between the two touches
func HandleSwipe(){
let p1 = startTouch
let p2 = endTouch
let center = CGPoint(x: (p1.x), y: (p1.y + 1))
let v1 = CGVector(dx: p1.x - center.x, dy: p1.y - center.y)
let v2 = CGVector(dx: p2.x - center.x, dy: p2.y - center.y)
let angle = atan2(v2.dy, v2.dx) - atan2(v1.dy, v1.dx)
let deg = angle * CGFloat(180.0 / .pi)
PrintDirection(degree: deg)
}
// uses the degree between touches to figure out the direction user swiped
func PrintDirection(degree: CGFloat){
// if needed, adjust degree angles for optimized swiping
if(degree < 30 && degree > -10){
print("Up")
}
else if(degree > 30 && degree < 60){
print("UpRight")
}
else if(degree > 75 && degree < 120){
print("Right")
}
else if(degree > 120 && degree < 150){
print("downRight")
}
else if(degree > 150 && degree < 210){
print("Down")
}
else if(degree > 210 && degree < 240){
print("downleft")
}
else if(degree > 240 && degree < 300){
print("Left")
}
else if(degree > 300 && degree < 360){
print("upLeft")
}
else if(degree < -30 && degree > -60){
print("upLeft")
}
else if(degree < -60){
print("left")
}
}
}