Mana-Loop/docs/specs/attunements/attunement-system-spec.md

Attunement System — Design Spec

Describes the three-attunement class system: Enchanter, Invoker, and Fabricator. Covers slot assignments, unlock conditions, leveling, regen/conversion scaling, discipline pool gating, and interaction with mana conversion and the incursion system.

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1. Objective

Attunements are class-like specializations that gate access to discipline pools and unique capabilities. A player can have multiple attunements active simultaneously, each contributing raw mana regen and (for Enchanter and Fabricator) automatic mana conversion. Attunements level up independently through attunement-specific XP sources, scaling their regen and conversion rates exponentially.

Design goals:

• Three distinct attunements with unique identities and roles
• Attunements unlock over time, expanding the player's options
• Leveling provides meaningful exponential scaling without being mandatory
• Discipline pool access is gated behind attunement unlock status
• Invoker's lack of primary mana creates a distinct pact-dependent playstyle

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2. The Three Attunements

2.1 Enchanter (Right Hand) — Starting Attunement

Property	Value
ID	enchanter
Slot	rightHand
Icon	✨
Color	#1ABC9C (Teal)
Primary Mana	transference
Raw Mana Regen	+0.5/hour (base)
Conversion Rate	0.2 raw→transference/hour (base)
Unlock	Starting (unlocked by default)
Capabilities	['enchanting']
Skill Categories	['enchant', 'effectResearch']

Disciplines: 10 disciplines across 4 files (core: 4, utility: 2, spells: 3, special: 1)

2.2 Invoker (Chest) — Locked

Property	Value
ID	invoker
Slot	chest
Icon	💜
Color	#9B59B6 (Purple)
Primary Mana	None (gains elemental mana from pacts)
Raw Mana Regen	+0.3/hour (base)
Conversion Rate	None (0 at all levels)
Unlock	Defeat first Guardian
Capabilities	['pacts', 'guardianPowers', 'elementalMastery']
Skill Categories	['invocation', 'pact']

Disciplines: 2 disciplines

2.3 Fabricator (Left Hand) — Locked

Property	Value
ID	fabricator
Slot	leftHand
Icon	⚒️
Color	#F4A261 (Earth)
Primary Mana	earth
Raw Mana Regen	+0.4/hour (base)
Conversion Rate	0.25 raw→earth/hour (base)
Unlock	Prove crafting worth
Capabilities	['golemCrafting', 'gearCrafting', 'earthShaping']
Skill Categories	['fabrication', 'golemancy']

Disciplines: 5 disciplines

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3. Unlock Conditions

Attunement	Condition	Implementation
Enchanter	Starting	Present in initial state: { active: true, level: 1, experience: 0 }
Invoker	Defeat first Guardian	Descriptive: "Defeat your first guardian and choose the path of the Invoker"
Fabricator	Prove crafting worth	Descriptive: "Prove your worth as a crafter"

Unlocking is performed via debugUnlockAttunement(attunementId) in the store, which initializes the attunement at { active: true, level: 1, experience: 0 }. The conditions are currently descriptive strings rather than hard-coded mechanical checks.

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4. Attunement Leveling

4.1 XP Thresholds

Level 1: 0 XP (starting)
Level 2: 1,000 XP
Level ≥ 3: Math.floor(1000 * Math.pow(2, level - 2) * 1.25)

Level	XP Threshold	Cumulative XP
1	0	0
2	1,000	1,000
3	2,500	3,500
4	5,000	8,500
5	10,000	18,500
6	20,000	38,500
7	40,000	78,500
8	80,000	158,500
9	160,000	318,500
10	320,000	638,500

Max Level: MAX_ATTUNEMENT_LEVEL = 10

4.2 Level-Up Mechanism

addAttunementXP(attunementId, amount):
  state.experience += amount
  while state.experience >= xpForNextLevel && level < MAX:
    state.experience -= xpForNextLevel
    level += 1
    log("Attunement leveled up!")

XP does not roll over beyond the threshold check — the threshold amount is subtracted and any remainder carries into the next level.

4.3 Regen and Conversion Rate Scaling

Both raw mana regen and conversion rate use the same exponential formula:

scaledValue = baseValue × 1.5^(level - 1)

Effective raw mana regen by level (per attunement):

Level	Enchanter (0.5)	Invoker (0.3)	Fabricator (0.4)
1	0.500/hr	0.300/hr	0.400/hr
2	0.750/hr	0.450/hr	0.600/hr
3	1.125/hr	0.675/hr	0.900/hr
4	1.688/hr	1.013/hr	1.350/hr
5	2.531/hr	1.519/hr	2.025/hr
6	3.797/hr	2.278/hr	3.038/hr
7	5.695/hr	3.417/hr	4.556/hr
8	8.543/hr	5.126/hr	6.834/hr
9	12.814/hr	7.689/hr	10.252/hr
10	19.221/hr	11.533/hr	15.377/hr

Effective conversion rate by level:

Level	Enchanter (0.2)	Fabricator (0.25)
1	0.200/hr	0.250/hr
2	0.300/hr	0.375/hr
3	0.450/hr	0.563/hr
4	0.675/hr	0.844/hr
5	1.013/hr	1.266/hr
6	1.519/hr	1.898/hr
7	2.278/hr	2.848/hr
8	3.417/hr	4.271/hr
9	5.126/hr	6.407/hr
10	7.689/hr	9.610/hr

Invoker has conversionRate = 0 at all levels — no auto-conversion.

Total regen = sum of baseRegen × 1.5^(level-1) across all active attunements. Total conversion drain = sum of baseConversionRate × 1.5^(level-1) across active attunements that have a non-zero conversion rate. This drain is applied to the raw mana pool.

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5. Attunement XP Gain Sources

5.1 Enchanting → Enchanter XP

calculateEnchantingXP(capacityUsed: number): number {
  return Math.max(1, Math.floor(capacityUsed / 10));
}

• 1 Enchanter XP per 10 capacity used (floored), minimum 1 XP per enchant.

5.2 Other Sources

The addAttunementXP(attunementId, amount) store action is the generic mechanism. Any system can call it to award XP to any attunement. In the codebase as-is, only enchanting has an explicit calculation function. Invoker and Fabricator XP gain is expected to be called from their respective systems (pact signing and item fabrication) but explicit calculation functions are not yet defined.

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6. Discipline Pool Gating

6.1 Skill Categories

Attunements gate discipline access through skill categories:

Category	Disciplines
Always available	mana, study, research
Enchanter	enchant, effectResearch
Invoker	invocation, pact
Fabricator	fabrication, golemancy

The function getAvailableSkillCategories() iterates all active attunements, collects their skillCategories into a Set, and returns the deduplicated array.

6.2 Discipline Pool Counts per Attunement

Attunement	File	Count
Enchanter Core	enchanter.ts	4
Enchanter Utility	enchanter-utility.ts	2
Enchanter Spells	enchanter-spells.ts	3
Enchanter Special	enchanter-special.ts	1
Invoker	invoker.ts	2
Fabricator	fabricator.ts	5
Attunement-gated total		17

The remaining 47 disciplines are available regardless of attunement status (base, elemental, elemental-regen, elemental-regen-advanced pools).

6.3 Capability Gating

Each attunement grants capabilities that unlock specific game systems:

Capability	System
enchanting	Enchantment Design/Prepare/Apply pipeline
pacts	Guardian pact signing and boon system
guardianPowers	Guardian power access
elementalMastery	Element mastery bonuses
golemCrafting	Golem summoning (Golemancy)
gearCrafting	Gear fabrication recipes
earthShaping	Earth mana shaping

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7. Mana Conversion Interaction

7.1 Conversion Flow

Each tick, the mana system:

1. Computes total raw regen (base + attunement regen + discipline bonus + equipment) × temporalEcho × meditationMultiplier
2. Subtracts incursion reduction: × (1 - incursionStrength)
3. Computes total conversion drain: sum of all active attunement conversion rates
4. Applies: rawMana += totalRegen - totalConversionDrain (per tick)
5. For each attunement with conversion: adds conversionRate × HOURS_PER_TICK to the target element

7.2 Invoker's Unique Position

The Invoker has no automatic conversion — conversionRate = 0. Instead, it gains elemental mana types exclusively by signing Guardian pacts. Each guardian's unlocksMana array is resolved through resolveMultiUnlockChain(element), which unlocks the guardian's element and all base components.

Example: Signing a Metal guardian (floor 90) unlocks fire, earth, and metal.

7.3 Conversion and Incursion

Incursion reduces net raw mana regeneration:

effectiveRegen = max(0, baseRegen × (1 - incursionStrength) × meditationMult - totalConversionPerTick)

As incursion strength approaches 95% (day 30), conversion drains can exceed regen, causing raw mana to decrease. Since conversion is contingent on available raw mana, attunement conversion effectively stalls during peak incursion if the raw pool is insufficient.

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8. Puzzle Room Interaction

From spire-climbing-spec.md §4.3, puzzle rooms appear on every 7th floor and have per-attunement variants:

Room Type	Description
enchanter_trial	Enchanter-themed puzzle challenge
fabricator_trial	Fabricator-themed puzzle challenge
invoker_trial	Invoker-themed puzzle challenge
hybrid_enchanter_fabricator	Dual attunement challenge
hybrid_enchanter_invoker	Dual attunement challenge
hybrid_fabricator_invoker	Dual attunement challenge

Progress scales at 1.5–2% per tick base, with attunement bonus of 2.5–3% per relevant attunement level.

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9. State Fields

interface AttunementState {
  id: string;
  active: boolean;
  level: number;        // 1–10
  experience: number;   // current XP toward next level
}

// Initial state (prestige):
attunements: {
  enchanter: { id: 'enchanter', active: true, level: 1, experience: 0 }
}

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10. Acceptance Criteria

#	Criterion
AC-1	Enchanter is the only active attunement at game start (level 1, 0 XP).
AC-2	Invoker and Fabricator are locked until unlocked; their unlock conditions are displayed in the Attunements tab.
AC-3	Attunement XP accumulates and triggers level-ups at the correct thresholds; each level requires the exact XP specified in the formula.
AC-4	Regen and conversion rates scale by 1.5^(level-1) — a level 10 Enchanter converts at 7.69 raw→transference/hour.
AC-5	Both raw regen and conversion from all active attunements are summed and applied each tick.
AC-6	Invoker has no automatic mana conversion at any level.
AC-7	Enchanting awards Enchanter XP at 1 per 10 capacity used (minimum 1).
AC-8	Attunement skill categories correctly gate discipline pool access — Enchanter disciplines require Enchanter to be active.
AC-9	Attunement tab shows unlocked/locked visual distinction, XP progress bar, level badge, and all attunement capabilities.
AC-10	Puzzle rooms on every 7th floor use per-attunement room types with the correct progress scaling.
AC-11	Incursion correctly reduces net raw mana regeneration, potentially stalling conversion at peak incursion.

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11. Files Reference

File	Role
src/lib/game/data/attunements.ts	Attunement definitions (the 3 attunements)
src/lib/game/stores/attunementStore.ts	Attunement state, leveling, XP, unlock
src/lib/game/types/attunements.ts	Attunement type definitions
src/components/game/tabs/AttunementsTab.tsx	Attunement UI display
src/lib/game/stores/manaStore.ts	Mana regen, conversion, incursion effects
docs/specs/spire-climbing-spec.md	Puzzle room types per attunement