We still need to add the star power-up into the world. We can randomly spawn a star every 10 encounters to add some extra excitement. Follow these steps to add the star logic:
Add a new instance of the
Starclass as a constant on theGameSceneclass:let powerUpStar = Star()
Call the star's
spawnfunction, anywhere inside theGameScene didMoveToViewfunction:// Spawn the star, out of the way for now powerUpStar.spawn(world, position: CGPoint(x: -2000, y: - 2000))
Inside the
GameScene didSimulatePhysicsfunction, update your new encounter code as follows:// Check to see if we should set a new encounter: if player.position.x > nextEncounterSpawnPosition { encounterManager.placeNextEncounter( nextEncounterSpawnPosition) nextEncounterSpawnPosition += 1400 // Each encounter has a 10% chance to spawn a star: let starRoll = Int(arc4random_uniform(10)) if starRoll == 0 { if abs(player.position.x - powerUpStar.position.x) > 1200...