Spritekit | Swift3 | Assigning a SKSpritenode in the level editor to a SKNode

Question

I have a SKSpritenode in the Level1.sks called "ballNode". This is loaded in the GameScene via.

ballNode = childNode(withName: "ballNode") as? SKSpriteNode
    ballNode?.physicsBody = SKPhysicsBody(circleOfRadius: (ballNode?.frame.size.width)! / 2)
    ballNode?.physicsBody!.categoryBitMask = PhysicsCategory.ballCategory
    ballNode?.physicsBody!.contactTestBitMask = PhysicsCategory.completeObjectNodeCategory

By default the ballNode has a parent of the scene. How can I add the ballNode to a SKNode called _gameNode?

_gameNode = SKNode()
self.addChild(_gameNode)

When I try to add the ballNode to the SKnode via code. It throws a error.

_gameNode.addChild(ballNode!)

Answer 1

Thanks to KnightOfDragon. The solution is

ballNode?.move(toParent: _gameNode)