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CLAUDE.md

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CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Life Saver is an artistic implementation of Conway's Game of Life built with SpriteKit. It has three targets:

  • Life Saver macOS - Companion desktop application
  • Life Saver Screensaver - macOS screensaver
  • Life Saver tvOS - Apple TV app

Build Commands

Open Life Saver.xcodeproj in Xcode, select a target, and build/run. No external dependencies required.

Architecture

Core Components (Shared/)

  • LifeScene.swift - Main SpriteKit scene managing the Game of Life grid, cell updates, and animations. Contains the core game rules (cells with >3 or <2 neighbors die; dead cells with exactly 3 neighbors become alive). Includes stasis detection and regeneration when population dies out.

  • LifeManager.swift - Configuration manager using delegate pattern to notify LifeScene of setting changes. Bridges between LifeDatabase and the scene.

  • LifeNode.swift - Individual cell sprite (SKSpriteNode subclass) with alive/dead state management and fade animations.

  • LifeDatabase.swift - UserDefaults wrapper for persistent settings storage.

  • LifePreset.swift - Defines color schemes and settings presets. Contains 20+ color presets (Santa Fe, Braineater, Meditation, etc.) and 5 settings presets for different size/speed configurations.

Utilities (Shared/Utilities/)

  • ToroidalMatrix.swift - Matrix data structure that wraps edges (toroidal topology), enabling efficient neighbor calculations for the Game of Life grid.

Platform-Specific Code

  • macOS/ - AppDelegate and ViewController for the desktop app
  • macOS Screensaver/ - LifeScreenSaverView (extends ScreenSaverView) and ConfigureSheetController for screensaver preferences
  • tvOS/ - View controllers and table view cells for Apple TV menu navigation