SpriteNode animation is failing - swift

Question

I have been trying to have a sprite with more than one texture so that it looks as if it was moving. I was looking at other questions and nothing they have done has fixed my issue, this is my code:
var textures = [SKTexture]()
for x in 0...2 {
let texture = SKTexture(imageNamed: "peng_" + String(x))
textures.append(texture)
print("pen_" + String(x))
}
let pen = SKSpriteNode(imageNamed: "peng_0")
self.addChild(pen)
let action = SKAction.animate(withNormalTextures: textures, timePerFrame: 0.1, resize: false, restore: true)
pen.run(SKAction.repeatForever(action))
When I run the simulation, the sprite stays still with the "peng_0" texture, but I want it to iterate the other textures every 0.1s
Does anyone know what am I doing wrong, thanks.

Answer 1

Here you go set your code like this
var array = ["R1", "R2", "R3", "R4", "R5", "R6", "R7", "R8"]
var textures:[SKTexture] = []
for i in 0 ..< array.count{
let texture: SKTexture = SKTexture(imageNamed: array[i])
textures.insert(texture, at:i)
}
let pen = SKSpriteNode(imageNamed: "R1")
self.addChild(pen)
let animation = SKAction.animate(with: textures, timePerFrame: 8/60, resize: true , restore:false )
pen.run = SKAction.repeatForever(animation)