Vite + TypeScript + React 19 shell hosting a Phaser 4 game canvas,
structured as a Slay the Spire-style single-player deck-builder.
Architecture - strict core/render split:
- core/ holds all game rules as pure TypeScript with zero Phaser
imports, so the domain is deterministic and engine-agnostic:
- cards/ data-driven card model, library, and starter deck
- combat/ turn-based CombatEngine (energy, block, draw/discard/
exhaust piles, enemy intents) + enemy definitions
- run/ RunManager (deck/hp/gold) and seeded MapGenerator
- shared/rng seedable mulberry32 for reproducible runs
- game/ is the Phaser layer: it renders core state and forwards input
- scenes/ Menu -> Map -> Combat -> Reward -> GameOver
- components/ CardSprite, CombatantSprite, Button
- events/ typed EventBus bridging combat/run state to a React HUD
- config/ centralized scene keys, colors, fonts, layout constants
Playable loop: traverse a deterministic 10-node map, fight turn-based
card combat against enemies with telegraphed intents, pick a card
reward after each win, culminating in a boss.
Verified: npm run lint and npm run build pass.