How do I fix a random amount of for-loop? - arrays

Question

I am creating a game (space shooter) using SpriteKit. Currently adding animations to the game. When explosions spawn, the animation loops at an X number of times (its really random). Sometimes it will loop 3 times and sometimes up to 10 times. The screen ends up being filled up with meaningless explosion animations.
I used to have a simple fade in/fade out animation which was working fine, but have finally upgraded to something smoother. I introduced a for loop and it has given me this issue. i also tried using a while loop with no avail. I have tried using the animation without a sequence but that doesn't fix anything either.
func spawnExplosion(spawnPosition: CGPoint) {
var explosion = SKSpriteNode()
textureAtlas = SKTextureAtlas(named: "explosion")
for i in 1...textureAtlas.textureNames.count {
let name = "explosion\(i).png"
textureArray.append(SKTexture(imageNamed: name))
print(i)
}
explosion = SKSpriteNode(imageNamed: "explosion1.png" )
explosion.setScale(0.6)
explosion.position = spawnPosition
explosion.zPosition = 3
self.addChild(explosion)
print(textureAtlas.textureNames.count)
//explosion animation-action
let explosionAnimation = SKAction.repeat(SKAction.animate(with: textureArray, timePerFrame: 0.05), count: 1)
let delete = SKAction.removeFromParent()
let explosionSequence = SKAction.sequence([explosionSound, explosionAnimation, delete])
explosion.run(explosionSequence)
}
The expected result is, when the function is called, the animation should run through ONCE and delete itself. Instead, it runs once up to 10 or so times.

Answer 1

Thanks to #Knight0fDragon, I was able to fix this issue by making the texture array local within the function. Now each explosion has it's own instance.
func spawnExplosion(spawnPosition: CGPoint) {
var explosion = SKSpriteNode()
var textureAtlas = SKTextureAtlas()
var textureArray = [SKTexture]()
textureAtlas = SKTextureAtlas(named: "explosion")
for i in 1...textureAtlas.textureNames.count {
let name = "explosion\(i).png"
textureArray.append(SKTexture(imageNamed: name))
}
explosion = SKSpriteNode(imageNamed: "explosion1.png" )
explosion.setScale(0.6)
explosion.position = spawnPosition
explosion.zPosition = 3
self.addChild(explosion)
//explosion animation-action
let explosionAnimation = SKAction.repeat(SKAction.animate(with: textureArray, timePerFrame: 0.05), count: 1)
let delete = SKAction.removeFromParent()
let explosionSequence = SKAction.sequence([explosionSound, explosionAnimation, delete])
explosion.run(explosionSequence)
}