SpaceCat in Swift

Hi László , thank you for the code, but i have some problems running the code, i was wondering if you can update the code. because i can't follow the course using swift. my abilities are not so good. so, your code will help me so much. Thank you.

Hi!

Yes, there have been some changes in the language and SDK since then that break the code, most notably the way enums are handled as well as physicsBody now being an optional. I've updated the code on the newfeatures branch (which is the original code with some additions), you can check that, and accomodate the changes. Can't promise to update the main version though, it's a bit behind.

Hi man, just a little favor, can you check this function.

func moveTowarsPosition(position:CGPoint){ // slope = (y3 - y1) / (x3 - x1) var slope = (position.y - self.position.y) / (position.x - self.position.x)

    var offscreenX:Float


    if (position.x <= self.position.x) {
        offscreenX = -10
    } else {

        offscreenX = self.parent.frame.size.width + 10
    }

   let offscreenY = slope * offscreenX - slope * self.position.x + self.position.y
    let offscreenY = slope * offscreenX - slope * self.position.x + self.position.y

    let pointOffScreen = CGPointMake(offscreenX, offscreenY)

    let distanceA = pointOffScreen.y - self.position.y
    let distanceB = pointOffScreen.x - self.position.x

    let distanceC = sqrt(pow(distanceA, 2) + pow(distanceB, 2))


    //distance = speed * time
    // time = distance / speed
    var time:Float = distanceC / 100


    let moveProjectile = SKAction.moveTo(pointOffScreen, duration: NSTimeInterval(time))
    self.runAction(moveProjectile)



}

im having trouble and the problem says "SKNode doesn't have a member named 'frame'" im lost u.U sorry to butter you

Hi!

The parent property is also an optional now, so you have to unwrap it:

offscreenX = self.parent!.frame.size.width + 10

Note the exclamation mark (!) after parent.

Sorry to butter you again Lászsió, but i am almost finish the game and im having some trouble at the end. this line. ("Self.node() as HudNode")... is when adding the HUD...

class HudNode: SKNode {

var lives : NSInteger = MaxLives
var score : NSInteger = 0

}

extension HudNode { class func hudAtPosition(position:CGPoint, frame:CGRect) -> HudNode { let hud = self.node() as HudNode

it says node() is unavailable use object construction SKNode.

Again Thank you so much.

Just simply create a new instance instead like: ``` let hud = HudNode()

HEY! I DON´T KNOW HOW TO THANK YOU! it works!!

Thank you man!!! ur awesome ;)!

how do you learn so much about all of this?

Dedication :) (also I'm a professional developer for 9 years now)

Well its a pleasure to meet you. im just starting on programming. and thanks for all ur help. are you nick walter?