swift spritekit : How to stop a runBlock?

Question

How can I stop all actions from a runBlock:

func slideShowControl () {


    let noObject = SKSpriteNode()
    noObject.name = "noObject"

    addChild(noObject)



    let block = SKAction.runBlock({

        self.slideShow(1)
        print("slide01")

        self.runAction(SKAction.waitForDuration(5), completion: {

            print("slide02")


        })

        self.runAction(SKAction.waitForDuration(8), completion: {

            print("slide03")

        })

        ...

        self.runAction(SKAction.waitForDuration(17), completion: {

            print("slide06")

        })

    })


    noObject.runAction(block, withKey: "stop")

self.slideShow(1) just present a button to send the key "stop", but the block continues to run and print. Is possible to stop this block?

noObject.removeActionForKey("stop")

Possible duplicate of [Stop SKAction that RepeatsForever - Sprite Kit](http://stackoverflow.com/questions/22037223/stop-skaction-that-repeatsforever-sprite-kit) — MikeJRamsey56, Aug 02 '16 at 00:51

Luca Angeletti · Accepted Answer · 2016-08-02T12:13:13.270

So you are naming an object "noObject" and an action "stop"? :)

Anyway, you should use a group and a few sequence actions.

The idea

This code

self.runAction(SKAction.waitForDuration(5), completion: {
    print("slide02")
})

can also be written this way

let action1 = SKAction.sequence([SKAction.waitForDuration(5), SKAction.runBlock { print("slide02") }])

Solution

Given a sprite

let sprite = SKSpriteNode()

and 4 actions

let action0 = SKAction.runBlock { print("slide01") }
let action1 = SKAction.sequence([SKAction.waitForDuration(5), SKAction.runBlock { print("slide02") }])
let action2 = SKAction.sequence([SKAction.waitForDuration(8), SKAction.runBlock { print("slide03") }])
let action3 = SKAction.sequence([SKAction.waitForDuration(6), SKAction.runBlock { print("slide06") }])

we can group the actions like this

let group = SKAction.group([action0, action1, action2, action3])

Now we can run the action with a key

sprite.runAction(group, withKey: "group")

and stop it

sprite.removeActionForKey("group")

swift spritekit : How to stop a runBlock?

1 Answers1

The idea

Solution