synthesis/PROGRESS.md

Synthesis — Development Progress

Last updated: 2026-02-12
Current phase: Phase 10 ✅ → Schools Complete

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Completed

Phase 0: Project Setup ✅

• Game Design Document (synthesis-gdd.md)
• Engine analysis and tech stack selection (engine-analysis.md)
• npm project + dependencies (Phaser 3, bitECS, TypeScript, Vite, Vitest)
• TypeScript strict config
• Vite config (HMR, chunk splitting)
• Phaser config (1280x720, pixel-art, arcade physics, top-down)
• BootScene with title screen
• Cursor rules (6 rules: project context, agent workflow, ECS, chemistry, Phaser, data)
• Implementation plan (IMPLEMENTATION-PLAN.md)
• Progress tracking (this file)

Phase 1: Chemistry Engine ✅

• 1.1 Types and interfaces (src/chemistry/types.ts)
• 1.2 Element data — 20 real elements (src/data/elements.json)
• 1.3 Element registry with lookup by symbol/number (src/chemistry/elements.ts)
• 1.4 Reaction engine — O(1) lookup, condition checking, failure reasons (src/chemistry/engine.ts)
• 1.5 Reaction data — 34 real reactions (src/data/reactions.json)
• 1.6 Compound data — 25 compounds with game effects (src/data/compounds.json)
• 1.7 Unit tests — 35 passing (tests/chemistry.test.ts)

Phase 2: ECS Foundation ✅

• 2.1 World setup — bitECS world + time tracking (src/ecs/world.ts)
• 2.2 Core components — Position, Velocity, SpriteRef, Health, ChemicalComposition (src/ecs/components.ts)
• 2.3 Movement system — velocity-based + bounce (src/ecs/systems/movement.ts)
• 2.4 Phaser ↔ bitECS sync bridge — polling-based, creates/destroys/syncs sprites (src/ecs/bridge.ts)
• 2.5 Entity factory — createGameEntity/removeGameEntity (src/ecs/factory.ts)
• 2.6 Health/damage system — damage, healing, death detection (src/ecs/systems/health.ts)
• 2.7 Visual test — 20 colored circles bouncing at 60fps, GameScene (src/scenes/GameScene.ts)
• Unit tests — 39 passing (tests/ecs.test.ts)

Phase 3: World Generation ✅

• 3.1 Tilemap system — canvas tileset with per-pixel variation + Phaser tilemap (src/world/tilemap.ts)
• 3.2 Biome data — Catalytic Wastes: 8 tile types (src/data/biomes.json)
• 3.3 Noise generation — simplex-noise, seeded PRNG (mulberry32), deterministic (src/world/noise.ts)
• 3.4 World generator — elevation noise → base terrain, detail noise → overlays (src/world/generator.ts)
• 3.5 Resource placement — geysers on acid-shallow zones, mineral veins on ground (src/world/generator.ts)
• 3.6 Camera — WASD movement, mouse wheel zoom (0.5x–3x), bounds clamping (src/world/camera.ts)
• 3.7 Minimap — canvas-based 160x160 overview, viewport indicator, border (src/world/minimap.ts)
• Unit tests — 21 passing (tests/world.test.ts)

Phase 4: Player Systems ✅

• 4.1 Player entity + WASD controller (src/player/input.ts, src/player/collision.ts, src/player/spawn.ts, src/player/factory.ts)
• 4.2 Inventory — weight-based, element stacking, AMU mass from registries (src/player/inventory.ts)
• 4.3 Element collection from world objects — resource entities, proximity interaction, E key (src/player/interaction.ts, src/world/resources.ts)
• 4.4 Crafting — chemistry engine integration, inventory consume/produce, condition checking (src/player/crafting.ts)
• 4.5 Projectile system — throw elements toward mouse, lifetime + tile collision (src/player/projectile.ts)
• 4.6 Quick slots — 4 hotkeys, auto-assign on pickup, active slot for throw (src/player/quickslots.ts)
• 4.7 HUD — UIScene overlay: health bar, quick slots, inventory info, controls hint (src/scenes/UIScene.ts)
• Unit tests — 39 player + 28 inventory + 12 interaction + 11 crafting + 13 projectile + 15 quickslots + 8 UI = 126 tests (222 total)

Phase 5: Creatures & Ecology ✅

• 5.1 Creature data — 3 species: Crystallids, Acidophiles, Reagents (src/data/creatures.json)
• 5.2 AI behavior — FSM: idle → wander → feed → flee → attack (src/creatures/ai.ts)
• 5.3 Metabolism — energy drain, feeding from resources, starvation damage (src/creatures/metabolism.ts)
• 5.4 Population dynamics — counting, reproduction, initial spawning (src/creatures/population.ts)
• 5.5 Life cycle — egg → youth → mature → aging → natural death (src/creatures/lifecycle.ts)
• 5.6 Interaction — projectile collision (armor), observation, creature→player melee (src/creatures/interaction.ts)
• 5.7 Ecosystem test — populations fluctuate, don't die out (tests/ecosystem.test.ts)
• 5.8 GameScene integration — all creature systems in update loop, debug overlay
• ECS components: Creature, AI, Metabolism, LifeCycle (src/ecs/components.ts)
• Species registry with string/numeric ID lookup (src/creatures/types.ts)
• Creature factory (src/creatures/factory.ts)
• Unit tests — 51 creature + 16 interaction + 5 ecosystem = 72 tests (293 total)

Phase 6: Run Cycle ✅

• 6.1 Spore Cradle — CradleScene: school selection UI, floating spore particles, meta display (src/scenes/CradleScene.ts)
• 6.2 Death trigger — player death → camera fade → DeathScene transition (src/scenes/GameScene.ts)
• 6.3 Death animation — body decomposes into real elements (65% O, 18% C, 10% H...), element labels, Mycelium threads absorbing particles (src/scenes/DeathScene.ts)
• 6.4 Moment Between — WebGL Mandelbrot/Julia hybrid shader with morphing + zoom, canvas fallback for non-WebGL (src/scenes/FractalScene.ts)
• 6.5 Meta-progression — Codex (permanent knowledge), spores (currency), run history, IndexedDB persistence (src/run/meta.ts, src/run/persistence.ts)
• 6.6 Run phases — state machine: Awakening → Exploration → Escalation → Crisis → Resolution, auto-advance on timers (src/run/state.ts)
• 6.7 Escalation — creature speed/aggro/damage multipliers, reaction instability, environmental damage at high entropy (src/run/escalation.ts)
• 6.8 Crisis: Chemical Plague — chain reaction poisons atmosphere, progressive player damage, toxic green tint overlay, CaO neutralization mechanics (src/run/crisis.ts)
• 6.9 School: Alchemist — starting kit (H×5, O×5, C×3, Na×3, S×2, Fe×2), chemical equilibrium principle (src/data/schools.json)
• Scene flow: BootScene → CradleScene → GameScene → DeathScene → FractalScene → CradleScene (full loop verified)
• Texture cleanup for multi-run support (tilemap + minimap textures removed before recreation)
• Unit tests — 42 run-cycle + 14 escalation = 56 tests (349 total)

Phase 7: Mycelium ✅

• 7.1 Mycelium Graph — persistent knowledge network (nodes, edges, deposit/strengthen/query) (src/mycelium/graph.ts)
• 7.2 Fungal Nodes — ECS entities on world map, glowing bioluminescent spots, pulsing animation (src/mycelium/nodes.ts)
• 7.3 Knowledge Recording — deposit run discoveries into Mycelium (auto on death + manual at nodes) (src/mycelium/knowledge.ts)
• 7.4 Knowledge Extraction — memory flashes from past runs, weighted by node strength, Russian text templates (src/mycelium/knowledge.ts)
• 7.5 Mycosis — visual distortion (tint overlay) on prolonged fungal node contact, reveals hidden info at threshold (src/mycelium/mycosis.ts)
• 7.6 Spore Shop — Cradle integration: spend spores for starting bonuses (extra health, elements, knowledge boost) (src/mycelium/shop.ts)
• ECS component: FungalNode (nodeIndex, glowPhase, interactRange) (src/ecs/components.ts)
• Data: mycelium config, spore bonuses, memory templates (src/data/mycelium.json)
• MetaState extended with MyceliumGraphData, IndexedDB persistence updated
• GameScene integration: node spawning, glow rendering, E-key interaction, mycosis overlay, memory flash display
• CradleScene integration: spore shop UI, Mycelium stats display, purchased effects passed to GameScene
• Unit tests — 36 passing (tests/mycelium.test.ts) (385 total)

Phase 8: First Archont — Ouroboros ✅

• 8.1 Ouroboros entity — Boss data JSON, BossData type, Boss ECS component, entity factory (src/boss/factory.ts, src/data/bosses.json)
• 8.2 Pattern mechanics — 4-phase cyclical AI: Coil → Spray → Lash → Digest, escalating difficulty (10% faster per cycle, caps at 5), regeneration + armor systems (src/boss/ai.ts)
• 8.3 Arena — circular generated room (21×21 tiles), acid pools, crystal walls, 4 mineral deposits, boss center / player south spawn (src/boss/arena.ts)
• 8.4 Multiple solutions — 3 real-chemistry victory paths: NaOH acid-base neutralization (3× dmg during Spray), direct damage during Digest vulnerability, Hg catalyst poisoning (permanently reduces regen+armor) (src/boss/victory.ts)
• 8.5 Reward — Archont's Memory lore entry in Codex, spore reward (100 base, +50% chemical, +100% catalytic), CodexEntry type extended with 'boss' (src/boss/reward.ts)
• BossArenaScene — full boss fight scene with phase-based attacks (Coil: chase, Spray: rotating acid projectiles, Lash: area sweep, Digest: immobile+vulnerable), boss health bar + phase indicator, victory/death handling (src/scenes/BossArenaScene.ts)
• GameScene integration — Resolution phase completion triggers arena transition, inventory/quickslots/health carried over
• Scene flow extended: GameScene → BossArenaScene → DeathScene (on death or victory)
• Unit tests — 70 passing (tests/boss.test.ts) (455 total)

Phase 9: Biome Expansion ✅

• 9.1 New elements — 20 additional real elements (Li, B, F, Ne, Ar, Ti, Cr, Mn, Co, Ni, As, Br, Ag, I, Ba, W, Pt, Pb, Bi, U) → 40 total
• 9.2 New compounds — 39 new compounds (acids, salts, oxides, organics) → 64 total
• 9.3 New reactions — 85 new reactions (synthesis, combustion, acid-base, redox, decomposition, replacement) → 119 total
• 9.4 Kinetic Mountains biome — physics/mechanics themed: chasms, gear floors, magnetic fields, steam vents, ore deposits
• 9.5 Verdant Forests biome — biology/ecology themed: bogs, toxic blooms, ancient trees, mycelium carpet, herb patches
• 9.6 Biome selection — CradleScene biome picker UI, biomeId passed to GameScene, generic world generator
• 9.7 New creatures — 6 species: Pendulums/Mechanoids/Resonators (mountains), Symbiotes/Mimics/Spore-bearers (forests)
• 9.8 World generator genericized — tile lookup by property (interactive/resource) instead of hardcoded names
• Chemistry types extended — actinide element category for Uranium
• Species types extended — biome field, SpeciesId enum expanded (0–8)
• GameScene filters creatures by selected biome
• Unit tests — 32 new tests (487 total)

Phase 10: Schools ✅

• 10.1 SchoolData type extended — bonuses, unlockCondition, ResolvedSchoolBonuses interface (src/run/types.ts)
• 10.2 3 new schools — Mechanic, Naturalist, Navigator with real science principles (src/data/schools.json)
• 10.3 School unlock system — data-driven conditions: elements_discovered, creatures_discovered, runs_completed (src/run/meta.ts)
• 10.4 School bonuses resolver — getSchoolBonuses() returns complete multiplier set with defaults (src/run/meta.ts)
• 10.5 Bonus integration — movement speed (Navigator), projectile damage (Mechanic), creature aggro range (Naturalist), reaction efficiency (Alchemist)
• 10.6 CradleScene updated — all 4 schools displayed, locked schools grayed out with lock icon + unlock hint, bonus indicators shown
• 10.7 System signatures updated — playerInputSystem, aiSystem, creatureProjectileSystem accept optional multiplier params
• Unit tests — 24 new tests (511 total): school data, unlock conditions (cumulative, multi-school, persistence), bonuses per school

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In Progress

None — Phase 10 complete

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Up Next: Phase 11+

(See IMPLEMENTATION-PLAN.md for Beyond Vertical Slice)

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Blockers

None

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Session Log

#	Date	Phase	Summary
1	2026-02-12	Phase 0	Project setup: GDD, engine analysis, npm init, Phaser config, BootScene, cursor rules, plan
2	2026-02-12	Phase 1	Chemistry engine: 20 elements, 25 compounds, 34 reactions, engine with O(1) lookup + educational failures, 35 tests passing
3	2026-02-12	Phase 2	ECS foundation: world + time, 5 components, movement + bounce + health systems, Phaser bridge (polling sync), entity factory, GameScene with 20 bouncing circles at 60fps, 39 tests passing
4	2026-02-12	Phase 3	World generation: simplex noise (seeded), 80x80 tilemap with 8 tile types, Catalytic Wastes biome, camera WASD+zoom, minimap with viewport indicator, 21 tests passing (95 total)
5	2026-02-12	Phase 4	Player systems: WASD movement + tile collision, weight-based inventory, resource collection, crafting via chemistry engine, projectile throw, 4 quick slots, UIScene HUD overlay (health bar, slots, inventory), 126 new tests (222 total)
6	2026-02-12	Phase 5	Creatures & Ecology: 3 species (Crystallid/Acidophile/Reagent), FSM AI (idle/wander/feed/flee/attack), metabolism (energy drain/feeding/starvation), life cycle (egg→youth→mature→aging→death), population dynamics, projectile-creature collision with armor, creature→player melee, ecosystem simulation test, 72 new tests (293 total)
7	2026-02-12	Phase 6	Run Cycle: full roguelike loop (Cradle→Game→Death→Fractal→Cradle), school selection (Alchemist), meta-progression (Codex/spores/IndexedDB), run phases with auto-advance, escalation effects (creature aggression/env damage), Chemical Plague crisis with neutralization, death animation (real body composition), WebGL fractal shader, 56 new tests (349 total)
8	2026-02-12	Phase 7	Mycelium: persistent knowledge graph (nodes/edges/strength), fungal node ECS entities with glow animation, knowledge deposit (auto on death + manual at nodes), memory flash extraction (weighted by strength, Russian templates), mycosis visual effect (tint overlay + reveal threshold), spore shop in Cradle (5 bonuses: health/elements/knowledge), MetaState+IndexedDB persistence updated, GameScene+CradleScene integration, 36 new tests (385 total)
9	2026-02-12	Phase 8	Ouroboros boss fight: 4-phase cyclical AI (Coil/Spray/Lash/Digest) with escalating difficulty, 3 chemistry-based victory paths (NaOH neutralization, direct damage, Hg catalyst poison), circular arena generator, BossArenaScene with attacks+collision+UI, Archont's Memory lore reward, CodexEntry extended, GameScene Resolution→arena trigger, 70 new tests (455 total)
10	2026-02-12	Phase 9	Biome expansion: +20 elements (40 total), +39 compounds (64 total), +85 reactions (119 total), 2 new biomes (Kinetic Mountains + Verdant Forests), biome selection in CradleScene, 6 new creature species (3 per new biome), generic world generator, 32 new tests (487 total)
11	2026-02-12	Phase 10	Schools: +3 schools (Mechanic/Naturalist/Navigator), data-driven unlock system (elements/creatures/runs), school bonuses (projectile dmg, movement speed, aggro range, reaction efficiency), CradleScene shows locked schools with hints, system multiplier params, 24 new tests (511 total)