Trying to display a resume button after pausing the game scene on SpriteKit

Question

I’m working with Xcode 8 and Swift 3, trying to display a “Resume Game” button on my scene after pausing the game but since everything stops, I have not found a way to properly do so. I followed Mike's advice on this page “Tap To Resume” Pause text SpriteKit, but that didn't help.

When my pause button is tapped, it runs the pause function with the following code:

func pauseGame() {
    self.isPaused = true
    self.physicsWorld.speed = 0
    self.speed = 0.0
    self.scene?.view?.isPaused = true
}

It may seem a little overkill but that works. If I remove

self.scene?.view?.isPaused = true

from my pause function, I'm able to display the tap to Resume Button but I can still interact with some of the SpriteKit nodes in the scene. I'm working on a space shooter game so the user can still move the spceship and tap to fire although the bullets don't travel until I resume the scene.

I thought about adding a boolean "true" to the pause function and adding an IF statement to the firing and the moving above but that seems to me like complicating things a bit.

Any suggestions on how I can display the Resume button when pausing the scene?

Answer 1

For my next game I'm sure I'll give Nik's suggestion a try. As for my issue above, it worked by using the code shown below. The additional code is to dismiss the pause button as well. Now that this works I can maybe add a fadeIn and fadeOut actions to both buttons.

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    for touch: AnyObject in touches {

        let pointOfTouch = touch.location(in: self)

        let nodeUserTapped = atPoint(pointOfTouch)

        if nodeUserTapped.name == "PauseButton" {
            if (self.isPaused == false) {
                pauseGame()
            }
        }

        if nodeUserTapped.name == "ResumeButton" {
            if (self.isPaused == true) {
                resumeGame()
            }

        }
    }
}


// MARK: - pauseGame
func pauseGame() {
    self.isPaused = true
    currentGameState = gameState.pauseGame
    self.physicsWorld.speed = 0
    self.speed = 0.0
    if (backgroundMusicIsOn == true) {
        backingAudio.stop()
    }
    if resumeButton.isHidden == true {
        resumeButton.isHidden = false
    }
    if pauseButton.isHidden == false {
        pauseButton.isHidden = true
    }
}


// MARK: - resumeGame
func resumeGame() {
    self.isPaused = false
    currentGameState = gameState.inGame
    self.physicsWorld.speed = 1
    self.speed = 1.0
    if (backgroundMusicIsOn == true) {
        backingAudio.play()
    }
    if resumeButton.isHidden == false {
        resumeButton.isHidden = true
    }
    if pauseButton.isHidden == true {
        pauseButton.isHidden = false
    }
}