CODEWITHSUNDEEP
swiftanimationsprite-kittextures
gkolman
gkolman

Reputation: 189

How to toggle sprite kit animations on and off swift

Im creating a game and i am trying to implement a run animation on a character. The animation consists of 30 frames being ran at 30fps. the animation works fine however I'm having trouble looping the animation when walking, i have created a button linked with the hero movement however with the current coding when the button is held down the animation only loops the first frame and when the button is release the full animation is played. I have tried to implement a SKwaitForduration action but that did not work either and now I'm pretty stumped. Any help is good help lol I'm very new to animation

here is my soldierLegs class 

 import Foundation
 import SpriteKit


class AssassinLegs: SKSpriteNode {

let soldierLegs = SKSpriteNode(imageNamed: "RZ-AssassinLegs.png")
var runAction:SKAction?

var isJumping:Bool = false
var isFalling:Bool = false
var isRunning:Bool = true
var isAttacking:Bool = false

required init(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}

init (imageNamed:String) {

    let imageTexture = SKTexture(imageNamed: imageNamed)
    super.init(texture: imageTexture, color:SKColor.clearColor(), size: 
    imageTexture.size() )
    self.setUpRun()
}

func setUpRun() {

    let atlas = SKTextureAtlas (named: "RzAssassinLegs")

    var array = [String]()

    //or setup an array with exactly the sequential frames start from 1
    //was
    //  for var i=1; i <= 12; i++ {

    for i in 1 ... 30 {

        let nameString = String(format: "RzAssassinRun%i", i)
        array.append(nameString)

    }
    //create another array this time with SKTexture as the type 
    (textures being the .png images)
    var atlasTextures:[SKTexture] = []

    //was...
    //for (var i = 0; i < array.count; i++ ) {

    for i in 0 ..< array.count {

        let texture:SKTexture = atlas.textureNamed( array[i] )
        atlasTextures.insert(texture, atIndex:i)
    }

    let atlasAnimation = SKAction.animateWithTextures(atlasTextures,     
    timePerFrame: 1.0/30, resize: true , restore:false )

    runAction =  SKAction.repeatActionForever(atlasAnimation)

   // runAction = SKAction

}

func Run (){

    isFalling = false
    isRunning = true
    isJumping = false

    let runAnimationFinish = SKAction.waitForDuration(1)
    let runAnimationSequence = SKAction.sequence([runAction!, 
    runAnimationFinish])
    self.runAction(runAnimationSequence)

}

class GameScene: SKScene, SKPhysicsContactDelegate {

      func RightArrow () {
    rightArrow.position = CGPointMake(101, 33)
    rightArrow.size = CGSize (width: 50, height: 50)
    rightArrow.xScale = 1
    rightArrow.yScale = 1
    rightArrow.zPosition = 1

    self.addChild(rightArrow)
}

func heroMovementRight () {
    soldierLegs.Run()

    soldierLegs.position = CGPointMake(soldierLegs.position.x + 4.0, 
    soldierLegs.position.y)
    soldierTorso.position = CGPointMake(soldierTorso.position.x + 4.0, 
    soldierTorso.position.y)
}
        override func touchesBegan(touches: Set<UITouch>, withEvent 
        event:UIEvent?) {

    for touch in touches {

        let location = touch.locationInNode(self)
        let node = nodeAtPoint(location)
            if stickActive == false{ fireWeapon = false}
        if node == jumpArrow { if (canJump) {heroJumpMovement() } }
        if node == leftArrow {goLeft = true}
        if node == rightArrow {goRight = true}

        }
     override func touchesEnded(touches: Set<UITouch>, withEvent event: 
     UIEvent?) {

    goLeft = false
    goRight = false
    fireWeapon = false
    stickActive = false
 }
     override func update(currentTime: CFTimeInterval) {

    if goLeft {heroMovementLeft()}
    if goRight {heroMovementRight()}
    if heroJump {heroJumpMovement()}
}
}

Upvotes: 1

Views: 477

Answers (1)

Alessandro Ornano
Alessandro Ornano

Reputation: 35392

Seems your animation stuck due to multiple calls. You could check your animations everytime there are multiple reps:

For example:

if !self.actionForKeyIsRunning("rotate") {
            let rotate = SKAction.rotateToAngle(newAngle, duration: 0.2,shortestUnitArc: true)
            self.runAction(rotate,withKey: "rotate")
}

func actionForKeyIsRunning(key: String) -> Bool {
        return self.actionForKey(key) != nil ? true : false
}

Upvotes: 2

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