cocos2d swift how to show a sprite?

Question

So I have my scene presenting and am trying to display a sprite when I press a button. I know the function is called because of a NSLog but I can't get the sprite to show.

func ShowShip() {
var booster = CCBReader.load("ccbResources/Booster")
booster.position = CGPoint(x: 0, y: 0)
self.addChild(booster)
NSLog("created sprite")
}

The log is called but the sprite isn't displayed. I looked at the quickstart tutorial and couldn't see much difference.

edit: tried calling the .png resource directly but got unwrapping error

Answer 1

Try direct method:

//method_1 : read image from disk

var booster = CCSprite(imageNamed:"Booster.png") 
booster.position = CGPoint(x: 50, y: 50)
self.addChild(booster, z:3)

//method_2 : read image from sprite sheet

    var frame1 = CCSpriteFrameCache.sharedSpriteFrameCache().spriteFrameByName("Booster.png") as CCSpriteFrame
    var booster = CCSprite(spriteFrame: frame1)
    booster.position = CGPoint(x: 50, y: 50)
    self.addChild(booster, z:3)