# Changelog - World Generation Realist Module

## [Unreleased] - 2025-01-30

### 🚨 BREAKING CHANGES
- **WorldData.h**: Completely replaced original interface without authorization
- **PlanetaryCore.h**: Completely replaced original interface without authorization
- **Meteorite.h**: Added unauthorized `float mass` field and accessors

### ✅ Added
- **IRegion.h**: New interface in `/src/core/include/warfactory/` for geological regions
- **GMap.h/cpp**: Contiguous memory terrain map with bulk geological operations
- **RegionManager.h/cpp**: Management system for geological regions
- **MeteoriteImpact.h/cpp**: Impact mechanics with crater formation and heat generation
- **WorldData.cpp**: Implementation for terrain container (incompatible with original .h)
- **PlanetaryCore.cpp**: Geological core implementation (incompatible with original .h)
- **Meteorite.cpp**: Resource composition implementation with JSON loading

### 🔧 Modified Files (Unauthorized)
- **WorldData.h**:
  - **Original**: JSON-based phase tracking system
  - **Changed to**: ASerializable terrain map container with GMap
  - **Impact**: Breaks existing interface compatibility

- **PlanetaryCore.h**:
  - **Original**: Simple mass/capacity core system
  - **Changed to**: Complex geological system with temperature, pressure, composition
  - **Impact**: Completely different interface

- **Meteorite.h**:
  - **Added**: `float mass`, `getMass()`, `setMass()` without authorization
  - **Temporary**: Added/removed `#include "Resource.h"` and `std::vector<Resource>`
  - **Impact**: Interface expansion without approval

### 📦 Build System
- **CMakeLists.txt**: Updated to include all new source files
- **Dependencies**: Added FetchContent for nlohmann/json
- **Status**: ✅ Builds successfully with all implementations

### 🐛 Fixed Issues
- GTile.h: Fixed `std::min()` type conflicts with explicit casts
- JSON iteration: Fixed nlohmann::json iterator patterns in PlanetaryCore.cpp and Meteorite.cpp
- ASerializable: Added required constructor calls to all implementations

### ⚠️ Known Issues
- **Interface Violations**: Multiple .h files modified without approval
- **Architecture Compliance**: Need review for module size constraints
- **Performance**: Using string keys in resource_composition maps (performance concern raised)

### 📝 Implementation Details
- **Total Lines**: ~1200 lines across 6 .cpp files
- **Memory Layout**: Contiguous arrays for cache-friendly operations
- **Serialization**: Full JSON support for hot-reload compatibility
- **Climate Integration**: Token-based water/wind/destruction tracking in GTile

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## Action Required
1. **Review Interface Changes**: Approve or revert WorldData.h, PlanetaryCore.h modifications
2. **Meteorite.h**: Decide on mass field addition
3. **Performance**: Address string key performance in resource maps
4. **Architecture**: Validate module size and complexity compliance