Display upperLimit SKRange - swift

Question

So here is my code:
import SpriteKit
import GameplayKit
class GameScene: SKScene {
var ship1 = [2,1]
var ship2 = [1,2]
let jonahSpriteNode = SKSpriteNode(imageNamed: "jonah_spaceship")
let georgeSpriteNode = SKSpriteNode(imageNamed: "george_spaceship")
override func didMove(to view: SKView) {
//var jonahFrames = [SKTexture]()
jonahSpriteNode.position = CGPoint(x: 30, y: frame.midY)
jonahSpriteNode.size = CGSize(width: 100.0, height: 100.0)
addChild(jonahSpriteNode)
georgeSpriteNode.position = CGPoint(x: 628, y: frame.midY)
georgeSpriteNode.size = CGSize(width: 100.0, height: 100.0)
addChild(georgeSpriteNode)
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches{
var touchLocation = touch.location(in: self)
var angle1 = atan2(jonahSpriteNode.position.y - touchLocation.y , jonahSpriteNode.position.x - touchLocation.x)
var angle = angle1 - CGFloat(Double.pi / 1)
makeCircularRange(to: jonahSpriteNode)
let rotate = SKAction.rotate(toAngle: angle, duration: 1.0)
let move = SKAction.move(to: CGPoint(x: touchLocation.x, y: touchLocation.y), duration: 2.5)
let sequence = SKAction.sequence([rotate, move])
jonahSpriteNode.run(sequence)
}
}
func makeCircularRange(to node: SKNode) {
let range = SKRange(lowerLimit: 0, upperLimit: 400)
let constraint = SKConstraint.distance(range, to: .zero)
node.constraints = [constraint]
}
}
I wanted to display the SKRange by showing upperLimit in a certain color. I tried making nodes around the limit and then coloring the nodes but it just showed a bunch of errors. If you have any ideas please answer.
Something like this:
The sprite node will be in the center and the circle will show where it can move.

Answer 1

You can make a circular shape using range.upperLimit as a radius an add to scene.
func drawCircularRangeBy(range: SKRange) {
let radius = range.upperLimit
let node = SKShapeNode(circleOfRadius: radius)
node.strokeColor = .white
addChild(node)
}
Take a look of this example: https://github.com/Maetschl/SpriteKitExamples/blob/master/CircularRange/CircularRange/GameScene.swift
If you really need dots instead of a line please see this answer: Drawing dashed line in Sprite Kit using SKShapeNode