Multiline SpriteKit Label

Adds support via an extension to lay out text on multiple lines in an SKLabelNode

SpriteKit is the 2D game development framework for Apple platforms: macOS, iOS, tvOS, and watchOS. In SpriteKit, you use an SKLabelNode to add text to the scene. However, SKLabelNode does not support multiline strings. Since SKLabelNode's functionality is limited, you can use this extension to solve the problem. Just add newline characters, "\n", in the String whereever you want a line break.

Here's the solution in Swift 3:

extension SKLabelNode {
  func multilined() -> SKLabelNode {
    let substrings: [String] = self.text!.components(separatedBy: "\n")
    return substrings.enumerated().reduce(SKLabelNode()) {
      let label = SKLabelNode(fontNamed: self.fontName)
      label.text = $1.element
      label.fontColor = self.fontColor
      label.fontSize = self.fontSize
      label.position = self.position
      label.horizontalAlignmentMode = self.horizontalAlignmentMode
      label.verticalAlignmentMode = self.verticalAlignmentMode
      let y = CGFloat($1.offset - substrings.count / 2) * self.fontSize
      label.position = CGPoint(x: 0, y: -y)
      $0.addChild(label)
      return $0
    }
  }
}

Here's how you use it:

let text = "hot dogs\ncold beer\nteam jerseys"
let singleLineMessage = SKLabelNode()
singleLineMessage.fontSize = min(size.width, size.height) /
  CGFloat(text.components(separatedBy: "\n").count) // Fill the screen
singleLineMessage.verticalAlignmentMode = .center // Keep the origin in the center
singleLineMessage.text = text
let message = singleLineMessage.multilined()
message.position = CGPoint(x: frame.midX, y: frame.midY)
message.zPosition = 1001  // On top of all other nodes
addChild(message)

Download this project to try it out. Build and run the iOS app scheme. You'll see the multiline SKLabelNode displayed in the simulator.