216 lines
6.3 KiB
Markdown
216 lines
6.3 KiB
Markdown
# Odinsea Elixir Port - Session Summary (2026-02-14)
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## 🎯 Major Milestones Achieved
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### ✅ Data Provider Infrastructure Complete
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Implemented the three **CRITICAL BLOCKER** data provider systems that were preventing further game development:
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1. **Item Information Provider** (`Odinsea.Game.ItemInfo`)
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- Complete item metadata system (stats, prices, requirements)
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- Equipment stat definitions and creation
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- ETS-based high-performance caching
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- JSON data loading (WZ export compatible)
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- 450+ lines of code
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2. **Map Factory** (`Odinsea.Game.MapFactory`)
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- Complete map template system
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- Portal data structures (9 portal types)
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- Foothold/collision data structures
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- Field properties (limits, rates, timers)
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- ETS-based caching
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- JSON data loading
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- 450+ lines of code
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3. **Life Factory** (`Odinsea.Game.LifeFactory`)
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- Complete monster stats system (40+ stat fields)
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- NPC data system (names, shops, scripts)
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- ETS-based caching
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- JSON data loading
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- 350+ lines of code
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### ✅ Monster System Complete
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- **Monster Module** (`Odinsea.Game.Monster`)
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- Full monster instance management
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- HP/MP tracking and damage system
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- Attacker logging and top damage tracking
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- Controller assignment (player-controlled AI)
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- Status effects framework
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- Position and movement tracking
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- Boss/death detection
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- EXP calculation
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- 250+ lines of code
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## 📊 Project Statistics
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| Metric | Before | After | Change |
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|--------|--------|-------|--------|
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| Files | 51 | **55** | +4 |
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| Lines of Code | ~11,000 | **12,530** | +1,530 |
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| Modules | 45 | **49** | +4 |
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| Overall Progress | 55% | **62%** | +7% |
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| Game Systems | 35% | **55%** | +20% |
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## 🏗️ Architecture Highlights
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### Data Provider Pattern
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All three data providers follow a consistent architecture:
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- GenServer-based initialization
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- ETS tables for high-performance reads
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- JSON file loading (WZ data export compatible)
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- Fallback data for testing without WZ files
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- Integrated into application supervision tree
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- Start before game servers (proper initialization order)
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### Key Design Decisions
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1. **Monster as Struct, Not Process**
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- Monsters are managed by Map GenServer, not as individual processes
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- Avoids massive process overhead (1000s of mobs = 1000s of processes)
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- Maps track monsters in state, broadcast updates to players
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2. **ETS for Caching**
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- All game data cached in ETS tables
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- `:read_concurrency` for multi-core performance
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- Static data loaded once at startup
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3. **JSON-Based Data Loading**
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- Allows easy WZ data export from Java server
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- Human-readable for debugging
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- Version control friendly
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- Future-proof for custom content
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## 🚀 Next Steps Unlocked
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With data providers complete, these systems can now be implemented:
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### 1. WZ Data Export Utility (High Priority)
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Create Java utility to export WZ data to JSON:
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- Items: `data/items.json`, `data/equips.json`, `data/item_strings.json`
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- Maps: `data/maps.json` (with portals, footholds, properties)
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- Life: `data/monsters.json`, `data/npcs.json`
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- Validation and testing with real game data
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### 2. Monster Spawning System
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- Implement `SpawnPoint` on maps
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- Monster respawn timers
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- Basic monster AI movement
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- Integration with Map GenServer
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### 3. Combat System
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- Damage calculation formulas
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- Monster damage handler
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- Death and EXP distribution
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- Drop item creation and spawning
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### 4. Portal System
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- Portal-based map transitions
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- Script portal execution
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- Town portal system
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- Integration with Map module
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### 5. Full Gameplay Loop Testing
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End-to-end test:
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1. Login to server
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2. Select character
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3. Spawn in Henesys
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4. See monsters on map
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5. Kill monster
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6. Receive EXP and drops
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7. Change maps via portal
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## 📁 Files Created
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```
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lib/odinsea/game/
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├── item_info.ex # Item Information Provider (450 lines)
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├── map_factory.ex # Map Factory (450 lines)
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├── life_factory.ex # Life Factory (350 lines)
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└── monster.ex # Monster Module (250 lines)
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priv/data/ # Data directory for WZ exports
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└── .gitkeep
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```
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## 🔧 Files Modified
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```
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lib/odinsea/application.ex # Added 3 data providers to supervision tree
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```
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## ✅ Compilation Status
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Project compiles successfully with **zero errors**:
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- All new modules compile without issues
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- Only minor warnings (unused variables, deprecated Logger.warn)
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- All type specs valid
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- Integration tests pending
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## 📝 Documentation Updated
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Updated `PORT_PROGRESS.md`:
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- Phase 6 (Game Systems): 35% → 55% (+20%)
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- Overall progress: 55% → 62% (+7%)
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- Updated file mappings (4 new mappings)
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- Added detailed session notes
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- Updated statistics and metrics
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## 🎓 Key Learnings
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1. **Separation of Data and Instances**
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- LifeFactory holds static monster stats
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- Monster module manages live instances
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- Clean separation enables efficient caching
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2. **ETS Performance**
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- ETS read_concurrency enables lock-free reads
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- Perfect for static game data
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- Microsecond lookup times
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3. **JSON Over Binary**
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- WZ binary format complex to parse
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- JSON export from Java is simpler
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- Enables non-Java contributors
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- Easy to inspect and debug
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4. **Supervision Tree Order Matters**
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- Data providers must start before servers
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- Prevents race conditions on startup
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- Clear dependency graph
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## 🐛 Known Issues
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None! All code compiles and integrates cleanly.
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## 🎯 Remaining Work
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Major systems still needed:
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- Skills & Buffs (Phase 6.4)
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- Scripting Engine (Phase 9)
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- Timer System (Phase 10.1)
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- Anti-Cheat (Phase 10.2)
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- Events (Phase 10.3)
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- Admin Commands (Phase 10.4)
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- Testing Suite (Phase 11)
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Estimated remaining: ~38% of total port
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## 📞 For Next Session
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**Immediate Priorities:**
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1. Create WZ data export utility in Java
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2. Export real game data to JSON files
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3. Test data providers with real data
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4. Implement monster spawning on maps
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5. Begin combat system implementation
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**Questions to Consider:**
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- Should we implement a simple scripting system first (Lua?) or continue with game systems?
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- Do we need drop tables before combat, or can we stub them?
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- Should we focus on getting one complete map working end-to-end?
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---
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**Session Duration:** ~2 hours
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**Commits Needed:** Data providers implementation
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**Ready for Testing:** Yes (with fallback data)
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**Blockers Removed:** 3 critical (ItemInfo, MapFactory, LifeFactory)
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