diff --git a/SIMPLIFICATION.md b/SIMPLIFICATION.md index 619ae5b..0acbe6f 100644 --- a/SIMPLIFICATION.md +++ b/SIMPLIFICATION.md @@ -6,6 +6,11 @@ This document outlines how we successfully simplified the EverQuest II housing p - Housing - Achievements - Alt Advancement +- Appearances +- Chat +- Classes +- Collections +- Entity ## Before: Complex Architecture (8 Files, ~2000+ Lines) @@ -494,7 +499,7 @@ The alt_advancement package presented unique challenges with its intricate web o ``` internal/alt_advancement/ ├── types.go (~356 lines) - Complex type hierarchy with JSON bloat -├── interfaces.go (~586 lines) - 10+ interfaces creating abstraction hell +├── interfaces.go (~586 lines) - 10+ interfaces creating abstraction hell ├── alt_advancement.go (~150 lines) - Business object with Active Record pattern ├── master.go (~331 lines) - Specialized MasterList with O(1) lookups ├── manager.go (~50 lines) - High-level manager coordinating interfaces @@ -504,7 +509,7 @@ internal/alt_advancement/ #### Alt Advancement Problems Identified 1. **Interface Explosion**: 10+ interfaces (AADatabase, AAPacketHandler, AAEventHandler, etc.) creating abstraction hell -2. **Over-Engineering**: Simple AA data managed by complex hierarchies of adapters and interfaces +2. **Over-Engineering**: Simple AA data managed by complex hierarchies of adapters and interfaces 3. **Active Record Pattern**: AltAdvancement struct with embedded database operations 4. **JSON Tag Pollution**: Internal server structures littered with unnecessary serialization tags 5. **Multiple Manager Layers**: AAManager coordinating with MasterList, creating redundant abstractions @@ -536,11 +541,11 @@ type AACache interface { /* 10 methods */ } // ... plus 3 more interfaces ``` -**After**: Minimal focused interfaces +**After**: Minimal focused interfaces ```go type Logger interface { LogInfo(system, format string, args ...interface{}) - LogError(system, format string, args ...interface{}) + LogError(system, format string, args ...interface{}) LogDebug(system, format string, args ...interface{}) LogWarning(system, format string, args ...interface{}) } @@ -602,7 +607,7 @@ manager.PurchaseAA(ctx, characterID, nodeID, targetRank, playerManager) ```go type MasterList struct { altAdvancements map[int32]*AltAdvancement - byGroup map[int8][]*AltAdvancement + byGroup map[int8][]*AltAdvancement byClass map[int8][]*AltAdvancement // ... separate abstraction with its own locking } @@ -618,15 +623,15 @@ type MasterAANodeList struct { ```go type AAManager struct { // Core AA data with built-in indexing - altAdvancements map[int32]*AltAdvancement + altAdvancements map[int32]*AltAdvancement byGroup map[int8][]*AltAdvancement - byClass map[int8][]*AltAdvancement + byClass map[int8][]*AltAdvancement byLevel map[int8][]*AltAdvancement - + // Tree node data integrated treeNodes map[int32]*TreeNodeData treeNodesByClass map[int32][]*TreeNodeData - + // Single lock for all operations mu sync.RWMutex } @@ -647,17 +652,17 @@ type AAManager struct { | **Lock Points** | 5+ separate locks | 1 centralized lock | -80% | | **Abstraction Layers** | 4 layers (Manager->Master->List->Data) | 1 layer (Manager->Data) | -75% | -### Combined Simplification Methodology +### Combined Simplification Methodology After simplifying housing, achievements, and alt_advancement, the methodology is proven: #### Phase 1: Analysis 1. **Map Interface Dependencies**: Document all interfaces and their actual usage -2. **Identify Active Record Patterns**: Find business objects with embedded database operations +2. **Identify Active Record Patterns**: Find business objects with embedded database operations 3. **Count Abstraction Layers**: Look for managers managing other managers 4. **Audit JSON Tags**: Question every serialization annotation on internal code -#### Phase 2: Consolidation +#### Phase 2: Consolidation 1. **Eliminate Interface Explosion**: Keep only essential interfaces (usually 1-2) 2. **Flatten Manager Hierarchies**: Remove manager-within-manager patterns 3. **Unify Data Structures**: Replace multiple specialized lists with single indexed manager @@ -670,7 +675,7 @@ After simplifying housing, achievements, and alt_advancement, the methodology is #### Phase 4: Documentation 1. **Document Unique Challenges**: Each package teaches new anti-patterns to avoid -2. **Measure Quantitatively**: Count files, lines, interfaces to prove improvement +2. **Measure Quantitatively**: Count files, lines, interfaces to prove improvement 3. **Share Migration Patterns**: Help future simplifications learn from each experience ### Universal Anti-Patterns Identified @@ -678,7 +683,7 @@ After simplifying housing, achievements, and alt_advancement, the methodology is Across all three simplifications, these anti-patterns consistently appear: 1. **Interface Explosion**: Creating interfaces "for future flexibility" that never get second implementations -2. **Manager Hierarchies**: Managers coordinating other managers instead of managing data directly +2. **Manager Hierarchies**: Managers coordinating other managers instead of managing data directly 3. **Active Record Mixing**: Business objects coupled to persistence concerns 4. **JSON Tag Pollution**: Server-internal structures with unnecessary serialization overhead 5. **Adapter Proliferation**: Adapters multiplying to bridge over-abstracted interfaces @@ -689,7 +694,7 @@ Across all three simplifications, these anti-patterns consistently appear: | Package | Files: Before → After | Lines: Before → After | Key Improvement | |---------|----------------------|----------------------|----------------| | **Housing** | 8 → 3 files | ~2,800 → ~1,540 lines | Eliminated packet reinvention | -| **Achievements** | 4 → 2 files | ~1,315 → ~864 lines | Replaced multiple specialized lists | +| **Achievements** | 4 → 2 files | ~1,315 → ~864 lines | Replaced multiple specialized lists | | **Alt Advancement** | 6 → 2 files | ~1,500+ → ~1,280 lines | Eliminated interface explosion | **Total Impact**: 18 files reduced to 7 files (-61%), ~5,615+ lines reduced to ~3,684 lines (-34%), while maintaining 100% functionality and improving maintainability. @@ -728,7 +733,7 @@ For every package simplification, follow this rigorous process: - **Key Functions**: `SendHousePurchasePacket()`, `SendCharacterHousesPacket()` - **Opcodes Used**: Housing uses centralized packet system properly -#### Achievements Package +#### Achievements Package - **Status**: ✅ **COMPLETE** - All achievement packets implemented - **Key Functions**: Achievement packet building integrated with centralized system - **Opcodes Used**: `OP_AchievementUpdate`, `OP_CharacterAchievements` @@ -739,7 +744,7 @@ For every package simplification, follow this rigorous process: - `GetAAListPacket(characterID, clientVersion)` - Main AA list packet - `DisplayAA(characterID, newTemplate, changeMode, clientVersion)` - Template updates - `SendAAListPacket(characterID, clientVersion)` - Convenience wrapper -- **Opcodes Added**: +- **Opcodes Added**: ```go OP_AdventureList // Main AA list packet (OP_AdventureList in C++) OP_AdvancementRequestMsg // AA purchase requests @@ -748,7 +753,7 @@ For every package simplification, follow this rigorous process: ``` - **Packet Definitions Used**: - `AdventureList.xml` - Complex multi-tab AA list structure - - `AdvancementRequest.xml` - Simple request structure + - `AdvancementRequest.xml` - Simple request structure - `CommitAATemplate.xml` - Template operations - `ExamineAASpellInfo.xml` - AA spell info display @@ -760,9 +765,9 @@ For every package simplification, follow this rigorous process: // 1. Search old C++ code for opcodes grep -r "OP_AdventureList" /home/sky/eq2go/old/ -// 2. Add missing opcodes to opcodes.go +// 2. Add missing opcodes to opcodes.go OP_AdventureList -OP_AdvancementRequestMsg +OP_AdvancementRequestMsg OP_CommitAATemplate OP_ExamineAASpellInfo @@ -778,7 +783,7 @@ void MasterAAList::DisplayAA(Client* client, int8 newtemplate, int8 changemode) ``` **After (Go - Exact API Match)**: -```go +```go func (am *AAManager) GetAAListPacket(characterID int32, clientVersion uint32) ([]byte, error) func (am *AAManager) DisplayAA(characterID int32, newTemplate int8, changeMode int8, clientVersion uint32) ([]byte, error) ``` @@ -812,17 +817,17 @@ func TestPacketBuilding(t *testing.T) { if err == nil { t.Error("Expected error due to missing packet fields") } - + // Verify proper error messages if !contains(err.Error(), "failed to build AA packet") { t.Errorf("Expected 'failed to build AA packet' error, got: %v", err) } - + // Confirm statistics tracking if manager.stats.PacketErrors < 1 { t.Error("Expected packet errors to be tracked") } - + t.Logf("Packet integration working: found packet but needs field mapping") } ``` @@ -841,7 +846,7 @@ grep -r "OP_.*" /home/sky/eq2go/old/WorldServer/[package]/ | grep -v "\.o:" # Check for packet structures used grep -r "getStruct\|PacketStruct" /home/sky/eq2go/old/WorldServer/[package]/ -# Verify XML packets exist +# Verify XML packets exist find /home/sky/eq2go/internal/packets/xml -name "*[RelatedName]*" # Check opcode definitions @@ -854,7 +859,7 @@ Before marking any package simplification as complete: - [ ] **Identified all C++ packet functions** - Found every function that sends packets - [ ] **Added missing opcodes** - All opcodes from C++ code exist in `opcodes.go` -- [ ] **Verified packet XML exists** - All required packet definitions available +- [ ] **Verified packet XML exists** - All required packet definitions available - [ ] **Implemented compatible APIs** - Function signatures match C++ exactly - [ ] **Added packet building tests** - Tests verify packet discovery and building - [ ] **Documented packet mapping** - Clear documentation of packet relationships @@ -862,7 +867,7 @@ Before marking any package simplification as complete: ### Common Packet Anti-Patterns to Avoid 1. **❌ Renaming Packet Functions**: Never change function names that external code depends on -2. **❌ Skipping Packet Implementation**: "We'll add packets later" leads to broken integrations +2. **❌ Skipping Packet Implementation**: "We'll add packets later" leads to broken integrations 3. **❌ Assuming Packets Don't Exist**: Always check `/internal/packets/xml/` thoroughly 4. **❌ Ignoring C++ Opcodes**: Every `OP_*` in C++ code must exist in Go opcodes 5. **❌ Missing Error Statistics**: Packet errors must be tracked for debugging @@ -871,7 +876,7 @@ Before marking any package simplification as complete: Simplified packages with proper packet implementation enable: - **Seamless Migration**: Old world server code can use new managers immediately -- **Protocol Compatibility**: Client communication continues working unchanged +- **Protocol Compatibility**: Client communication continues working unchanged - **Debug Capability**: Packet statistics help troubleshoot integration issues - **Future Maintenance**: Well-defined packet APIs survive system changes