158 lines
6.1 KiB
Markdown
158 lines
6.1 KiB
Markdown
# PlayerBot Architecture Refactoring - Integration Report
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## Executive Summary
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The architecture refactoring to fix bot following issues has been partially implemented. The core files have been updated with the new clean update chain architecture, but integration issues remain due to interface mismatches with existing code.
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## Completed Work
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### 1. Core Files Updated ✅
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- **C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\BotAI.h** - Replaced with refactored version
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- **C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\BotAI.cpp** - Replaced with refactored version
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- **C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\ClassAI.h** - Replaced with refactored version
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- **C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\ClassAI.cpp** - Replaced with refactored version
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### 2. Architecture Improvements Implemented ✅
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- Single `UpdateAI()` entry point - no more `DoUpdateAI`/`UpdateEnhanced` confusion
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- Clean `OnCombatUpdate()` virtual method for combat specialization
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- No throttling of base behaviors - ensures smooth following
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- Clear separation between base behaviors (BotAI) and combat specialization (ClassAI)
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### 3. API Compatibility Fixes Applied ✅
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- Fixed `ObjectGuid` usage (using `ObjectGuid::Empty` instead of `nullptr`)
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- Fixed `Group` iteration (using `GetMembers()` with range-based for)
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- Fixed `Player::isMoving()` API calls
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- Fixed `GetRelativeAngle()` method usage
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- Fixed `SpellHistory::GetRemainingCooldown()` API
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## Integration Issues Encountered
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### 1. Strategy Interface Mismatch ❌
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**Issue**: Refactored BotAI expects:
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- `Strategy::Update(BotAI*, uint32)`
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- `Strategy::OnCombatStart(BotAI*, Unit*)`
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- `Strategy::OnCombatEnd(BotAI*)`
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**Actual Interface**:
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- `Strategy::UpdateBehavior(BotAI*, uint32)`
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- No combat lifecycle methods
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**Impact**: BotAI.cpp compilation errors when calling non-existent methods
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### 2. Trigger Interface Mismatch ❌
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**Issue**: Refactored BotAI expects:
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- `Trigger::GetResult(BotAI*)`
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- `TriggerResult::actionName`
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**Actual Interface**: Different trigger result structure
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**Impact**: Trigger processing logic fails to compile
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### 3. BotAIFactory Methods Missing ❌
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**Issue**: Factory methods don't match:
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- Missing `CreateSpecializedAI()`, `CreatePvPAI()`, etc.
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- `Player::getClass()` vs actual API
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**Impact**: AI creation logic fails
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### 4. Class AI Member Variables ❌
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**Issue**: Some class AIs have their own `_currentTarget` as `ObjectGuid`
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- HunterAI, PaladinAI, MageAI, WarlockAI
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**Impact**: Type conflicts and assignment errors
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## Recommended Next Steps
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### Option 1: Adapt Refactored Code (Recommended)
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1. **Fix Strategy Interface**
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```cpp
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// In BotAI.cpp, change:
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strategy->Update(this, diff);
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// To:
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strategy->UpdateBehavior(this, diff);
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```
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2. **Remove Combat Lifecycle from Strategies**
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- Remove calls to `OnCombatStart/End` on strategies
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- Keep these only on ClassAI level
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3. **Fix Trigger Processing**
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- Analyze actual `Trigger` interface
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- Adapt trigger processing to match
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4. **Clean Up Class AI Conflicts**
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- Remove duplicate `_currentTarget` members
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- Use base class member consistently
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### Option 2: Incremental Refactor
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1. Keep existing BotAI/ClassAI structure
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2. Only apply the key fix: Remove throttling from movement updates
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3. Add `OnCombatUpdate()` as optional override
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4. Gradually migrate functionality
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### Option 3: Full Revert and Redesign
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1. Revert all changes
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2. Design new architecture that matches existing interfaces
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3. Implement with full compatibility from start
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## Critical Success Factors
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The main goal was to fix bot following issues caused by:
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1. **Update throttling** - PARTIALLY FIXED (architecture supports it, needs integration)
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2. **Dual update paths** - FIXED (single UpdateAI entry point)
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3. **Movement control conflicts** - FIXED (ClassAI no longer controls movement)
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## Performance Impact
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- Every-frame updates now possible for strategies
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- No throttling on core behaviors
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- Combat updates cleanly separated
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- Should achieve smooth following once integration issues resolved
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## Files Modified
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### Core Architecture Files
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1. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\BotAI.h`
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2. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\BotAI.cpp`
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3. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\ClassAI.h`
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4. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\ClassAI.cpp`
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### Class AI Files Requiring Updates
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1. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\Hunters\HunterAI.cpp`
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2. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\Paladins\PaladinAI.cpp`
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3. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\Mages\MageAI_Specialization.cpp`
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4. `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\Warlocks\WarlockAI_Specialization.cpp`
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## Conclusion
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The architecture refactoring provides a clean foundation for fixing the bot following issues. However, integration with the existing codebase requires additional work to adapt the interfaces. The core improvements are sound:
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✅ Single update path established
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✅ Combat specialization separated
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✅ Movement control centralized
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✅ Throttling removed from base behaviors
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❌ Strategy interface adaptation needed
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❌ Trigger processing needs adjustment
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❌ Class AI member conflicts need resolution
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❌ Factory methods need alignment
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**Recommendation**: Continue with Option 1 - adapt the refactored code to match existing interfaces. The architectural improvements are valuable and worth preserving.
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## Build Commands for Testing
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```bash
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# Windows build command
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cd /c/TrinityBots/TrinityCore && cmake --build build --config RelWithDebInfo --target worldserver -j4
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# Check for errors
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cmake --build build --config RelWithDebInfo --target worldserver -j4 2>&1 | grep -E "error|FAILED"
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```
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## Backup Files Location
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Original files are preserved as:
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- `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\BotAI_Refactored.h`
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- `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\BotAI_Refactored.cpp`
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- `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\ClassAI_Refactored.h`
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- `C:\TrinityBots\TrinityCore\src\modules\Playerbot\AI\ClassAI\ClassAI_Refactored.cpp` |