このエラーがコードに表示される理由がわかりません:
func torpedoDidCollideWithAlien(torpedo:SKSpriteNode, alien:SKSpriteNode){
print("HIT")
torpedo.removeFromParent()
alien.removeFromParent()
var aliensDestroyed = 0
aliensDestroyed += 1
if (aliensDestroyed > 10){ //Transition to GameOver or Success
let transition:SKTransition = SKTransition.flipHorizontalWithDuration(0.5)
let gameOverScene:SKScene = GameOverScene(size: self.size, won: true)
self.view?.presentScene(gameOverScene, transition: transition)
}
エラーは次の行にあります。
let transition:SKTransition = SKTransition.flipHorizontalWithDuration(0.5) //'Will never be executed'