title: Swift SpriteKit: Running two SKActions forever separately
body: <p>I am new to Swift and SpriteKit, and I have a small problem. I would like to spawn enemies once per second, while moving the player slightly once per frame. So I tried to create two separate SKActions. This is my code:</p>
  
  <pre><code>runAction(SKAction.repeatActionForever(
          SKAction.sequence([
              SKAction.runBlock(
                  addEnemy
              ),
              SKAction.waitForDuration(1.0)
          ])
      ))
  
  runAction(SKAction.repeatActionForever(
      SKAction.runBlock(
          movePlayer
      )
  ))
  </code></pre>
  
  <p>But when I run the above, neither action(s) happen. How would I fix this?</p>