NeonSwipe DX

NeonSwipe is a SpriteKit-based cyberpunk arcade snake featuring pure swipe controls and 30 progressive stages across 5 distinct worlds. ARCHITECTURE - Engine: SpriteKit with tick-interpolated motion at 60 fps - Controls: UISwipeGestureRecognizer (4 directions) — zero on-screen controls - Persistence: UserDefaults JSON-encoded GameProgress struct - Target: iPhone portrait only, iOS 17.0 minimum STAGE DESIGN - 30 stages: 5 worlds x 6 stages each - Worlds 1-2: Pure food-eating snake core - World 3: Obstacle blocks added procedurally - World 4: Mixed obstacles + increased food goal - World 5: Chasing AI enemy nodes (pathfinding via SKAction sequences) - World 6: Stationary turret nodes firing bullet projectiles SNAKE FORMS - 6 unique forms, one unlocked per world - Each form: distinct base color + particle emitter trail - Form selection persists across sessions SCORING - Per-stage star rating (1-3) based on score threshold - Best score and best time tracked independently - Stage clear flag persists indefinitely COMPLIANCE - Zero network calls, zero permissions - No IAP, no CloudKit, no App Groups - No third-party SDKs or analytics