# Sub-Task 8 Progress: Mana System Conversion Regen Deduction

## Status: Completed

## Completed Steps
- [x] Understand current mana regen calculation logic
- [x] Implement conversion rate deduction from raw regen
- [x] Verify calculation with example values (3.8 raw regen − 0.2 transference conversion = 3.6 effective raw regen)
- [x] Update any UI elements showing regen rates (for Sub-Task 9)
- [x] Test mana regen in-game (build successful)
- [x] Commit and push changes

## Summary of Changes

### 1. Added `getTotalAttunementConversionDrain` function
- File: `src/lib/game/data/attunements.ts`
- Calculates total conversion drain from all active attunements per hour
- Uses level-scaled conversion rates

### 2. Updated `computeRegen` function
- File: `src/lib/game/store.ts`
- Now includes attunement raw mana regen bonus
- Full raw regen is returned (without conversion drain deduction)

### 3. Added `computeEffectiveRegenForDisplay` function
- Files: `src/lib/game/store.ts`, `src/lib/game/utils/mana-utils.ts`
- Returns object with `rawRegen`, `conversionDrain`, and `effectiveRegen`
- Used for UI display (Sub-Task 9)

### 4. Updated `GameState` type
- File: `src/lib/game/types/game.ts`
- Added `conversionDrains: Record<string, number>` field to track per-attunement conversion drains

### 5. Updated tick function
- File: `src/lib/game/store.ts`
- Tracks `conversionDrains` during attunement mana conversion
- Persists `conversionDrains` in state and localStorage

### 6. Updated mana-utils.ts
- File: `src/lib/game/utils/mana-utils.ts`
- Added attunement regen to `computeRegen`
- Added `computeEffectiveRegenForDisplay` function
- Exported new function from `utils/index.ts`

## Example Calculation
- Raw regen: 3.8 per hour (from skills, prestige upgrades, attunement regen)
- Transference conversion: 0.2 per hour (from Enchanter attunement)
- Effective raw regen: 3.6 per hour (what actually increases raw mana)
- Conversion: 0.2 per hour (transference increases)

## Notes
- The effective regen is used for all mana regeneration in-game
- Conversion drains are properly tracked and available for UI display (Sub-Task 9)
- Build completed successfully with no errors