How do I make a group of functions loop swift SpriteKit - swift

Question

My problem is I am trying to make all the bar6s to move down to the bottom of the screen, similar to flappy bird. I've done most of it, what I've done is make the bars go
down but I want to make it go on forever but only 5 bars go down how can I make it go on forever like regenerate or can you make a completion block in the function while you declare it.
Here is my code:
//
// PlaysScene.swift
// Pocket Rocket3
//
// Created by Lucas Farleigh on 27/11/2014.
// Copyright (c) 2014 Lucas Farleigh. All rights reserved.
//
import spriteKit
class PlayScene:SKScene {
//declaring the node in this scene!
let background = SKSpriteNode(imageNamed: "background")
let bar1 = SKSpriteNode(imageNamed:"bar1")
let bar2 = SKSpriteNode(imageNamed:"bar2")
let bar3 = SKSpriteNode(imageNamed:"bar3")
let bar4 = SKSpriteNode(imageNamed:"bar4")
let bar5 = SKSpriteNode(imageNamed:"bar5")
let bar6a = SKSpriteNode(imageNamed: "bar6")
let bar6b = SKSpriteNode(imageNamed: "bar6")
let bar6c = SKSpriteNode(imageNamed: "bar6")
let bar6d = SKSpriteNode(imageNamed: "bar6")
let bar6e = SKSpriteNode(imageNamed: "bar6")
let bar6f = SKSpriteNode(imageNamed: "bar6")
let bar6g = SKSpriteNode(imageNamed: "bar6")
let bar6h = SKSpriteNode(imageNamed: "bar6")
let bar6i = SKSpriteNode(imageNamed: "bar6")
let bar6j = SKSpriteNode(imageNamed: "bar6")
//making actions
override func didMoveToView(view: SKView) {
var check1 = false
var check2 = false
var check3 = false
var check4 = false
var check5 = false
var delayA = SKAction.waitForDuration(NSTimeInterval(1.5))
var delayB = SKAction.waitForDuration(NSTimeInterval(2))
var delayC = SKAction.waitForDuration(NSTimeInterval(4))
var delayD = SKAction.waitForDuration(NSTimeInterval(6))
var delayE = SKAction.waitForDuration(NSTimeInterval(8))
var actionmove = SKAction.moveToY(0, duration: 15)
var delay = SKAction.waitForDuration(NSTimeInterval(1.5))
var sequence = SKAction.sequence([ delay , actionmove])
var delchild = SKAction.removeFromParent()
func f1 () {
bar6a.position = CGPointMake(800 ,CGRectGetMaxY(self.frame))
bar6b.position = CGPointMake(1600,CGRectGetMaxY(self.frame))
check1 = false
bar6a.runAction(actionmove)
bar6b.runAction(actionmove,completion: {
self.bar6a.position = CGPointMake(800 ,CGRectGetMaxY(self.frame))
self.bar6b.position = CGPointMake(1600,CGRectGetMaxY(self.frame))
check1 = true
self.bar6a.runAction(actionmove)
self.bar6b.runAction(actionmove,completion: {
self.bar6a.removeFromParent()
self.bar6b.removeFromParent()
check1 = true
})
})
actionmove.timingMode = SKActionTimingMode.EaseOut
}
var sequence2 = SKAction.sequence([ delayB ,actionmove])
var sequence3 = SKAction.sequence([ delayC ,actionmove])
var sequence4 = SKAction.sequence([ delayD ,actionmove])
var sequence5 = SKAction.sequence([delayE , actionmove])
bar6a.xScale = 2.5
bar6b.xScale = 2.5
bar6c.xScale = 2.5
bar6d.xScale = 2.5
bar6e.xScale = 2.5
bar6f.xScale = 2.5
bar6g.xScale = 2.5
bar6h.xScale = 2.5
bar6i.xScale = 2.5
bar6j.xScale = 2.5
//making the actions
var num1 = 1
//making different delays
//sequence actions
addChild(bar6a)
addChild(bar6b)
addChild(bar6c)
addChild(bar6d)
addChild(bar6e)
addChild(bar6f)
addChild(bar6g)
addChild(bar6h)
addChild(bar6i)
addChild(bar6j)
//making the functions
func f2 () {
check2 = false
bar6c.position = CGPointMake(400 ,CGRectGetMaxY(self.frame))
bar6d.position = CGPointMake(1200,CGRectGetMaxY(self.frame))
bar6d.runAction(sequence2)
bar6c.runAction(sequence2, completion:{
self.bar6c.removeFromParent()
self.bar6d.removeFromParent()
check2 = true
})
bar6d.runAction(sequence2)
}
func f3 () {
check3 = false
bar6e.position = CGPointMake(600 ,CGRectGetMaxY(self.frame))
bar6f.position = CGPointMake(1400,CGRectGetMaxY(self.frame))
bar6e.runAction(sequence3,completion:{
self.bar6e.removeFromParent()
self.bar6f.removeFromParent()
check3 = true
})
bar6f.runAction(sequence3)
}
func f4 () {
check4 = false
bar6g.position = CGPointMake(700 ,CGRectGetMaxY(self.frame))
bar6h.position = CGPointMake( 1500,CGRectGetMaxY(self.frame))
bar6h.runAction(sequence4)
bar6g.runAction(sequence4,completion:{
self.bar6g.removeFromParent()
self.bar6h.removeFromParent()
check4 = true
})
}
func f5 () {
check5 = false
bar6i.position = CGPointMake(700 ,CGRectGetMaxY(self.frame))
bar6j.position = CGPointMake(1500 ,CGRectGetMaxY(self.frame))
bar6j.runAction(sequence5)
bar6i.runAction(sequence5,completion:{
check5 = true
self.bar6i.removeFromParent()
self.bar6j.removeFromParent()
})
}
f1()
f2()
f3()
f4()
f5()
//making the action repeat forever
var num2 = 1
bar1.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMaxY (self.frame))
bar2.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMaxY (self.frame))
bar3.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMaxY (self.frame))
bar4.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMaxY (self.frame))
bar5.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMaxY (self.frame))
bar1.xScale = 2.5
bar2.xScale = 2.5
bar3.xScale = 2.5
bar4.xScale = 2.5
bar5.xScale = 1.7
/*
bar1.runAction(sequence, completion: {
self.bar2.runAction(sequence, completion: {
self.bar3.runAction(sequence, completion:{
self.bar4.runAction(sequence, completion:{
self.bar5.runAction(sequence)
})
})
})
})*/
background.position = CGPointMake(CGRectGetMidX(self.frame),CGRectGetMidY(self.frame))
//doing the background stuff
background.yScale = 2.0
background.xScale = 3.0
addChild(background)
//doing the the bar stuff
if check1 == true{
f1()
}
}
override func touchesBegan(touches: NSSet, withEvent event: UIEvent) {
}
}

Answer 1

EDIT: I see that you are trying to do this similar to flappy bird now. I would suggest doing either an SKPhysicsNode with spritekit or attempting to use Cocos2d http://www.cocos2d-x.org/wiki/Physics