AI Task: ai-tasks/analyze-gltf-extensions-support.md

.ai/plan.md

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+# Implementation Plan: StraightFour Entities and OMI glTF Extensions Analysis
+
+## 1. Files to Create/Modify
+
+### New Files to Create:
+```
+docs/compatibility/straightfour-gltf-matrix.md
+docs/compatibility/straightfour-gltf-report.md
+docs/compatibility/straightfour-gltf-mapping.json
+docs/compatibility/.gitignore
+scripts/analyze_entities.py
+scripts/clone_omi_extensions.py
+scripts/parse_gltf_extensions.py
+scripts/generate_compatibility_matrix.py
+scripts/requirements.txt
+```
+
+### Directory Structure to Create:
+```
+docs/
+├── compatibility/
+│   ├── straightfour-gltf-matrix.md
+│   ├── straightfour-gltf-report.md
+│   ├── straightfour-gltf-mapping.json
+│   └── .gitignore
+└── scripts/
+    ├── analyze_entities.py
+    ├── clone_omi_extensions.py
+    ├── parse_gltf_extensions.py
+    ├── generate_compatibility_matrix.py
+    └── requirements.txt
+```
+
+## 2. Key Changes for Each File
+
+### `scripts/analyze_entities.py`
+```python
+# Purpose: Parse StraightFour entity definitions
+# Key functions:
+- scan_entity_directories()
+- parse_cs_files()
+- extract_entity_metadata()
+- extract_entity_properties()
+- extract_entity_behaviors()
+- generate_entity_catalog()
+```
+
+### `scripts/clone_omi_extensions.py`
+```python
+# Purpose: Clone and prepare OMI glTF Extensions repository
+# Key functions:
+- clone_omi_repository()
+- validate_repository_structure()
+- list_extension_directories()
+- cleanup_temporary_files()
+```
+
+### `scripts/parse_gltf_extensions.py`
+```python
+# Purpose: Parse OMI glTF extension specifications
+# Key functions:
+- scan_extension_directories()
+- parse_schema_files()
+- parse_readme_files()
+- extract_extension_metadata()
+- extract_feature_lists()
+- generate_extension_catalog()
+```
+
+### `scripts/generate_compatibility_matrix.py`
+```python
+# Purpose: Map entities to extensions and generate outputs
+# Key functions:
+- load_entity_catalog()
+- load_extension_catalog()
+- calculate_semantic_similarity()
+- map_entities_to_extensions()
+- determine_support_levels()
+- generate_markdown_matrix()
+- generate_detailed_report()
+- generate_json_mapping()
+```
+
+### `docs/compatibility/straightfour-gltf-matrix.md`
+```markdown
+# StraightFour - glTF Extensions Compatibility Matrix
+
+| Extension Name | StraightFour Entity | Support Level | Missing Features | Notes |
+|----------------|-------------------|---------------|------------------|-------|
+| OMI_audio_emitter | AudioEntity | Partial | spatial_audio, falloff_curve | Basic audio supported |
+| OMI_physics_body | BaseEntity | None | rigid_body, collision_shapes | No physics implementation |
+...
+```
+
+### `docs/compatibility/straightfour-gltf-report.md`
+```markdown
+# StraightFour glTF Extensions Compatibility Report
+
+## Executive Summary
+## StraightFour Entity Model Overview
+## OMI glTF Extensions Overview
+## Mapping Methodology
+## Per-Extension Analysis
+## Per-Entity Analysis
+## Recommendations
+```
+
+### `docs/compatibility/straightfour-gltf-mapping.json`
+```json
+{
+  "metadata": {
+    "generated_at": "timestamp",
+    "straightfour_version": "detected",
+    "omi_extensions_commit": "hash"
+  },
+  "entities": {...},
+  "extensions": {...},
+  "mappings": {...}
+}
+```
+
+## 3. Dependencies Required
+
+### Python Dependencies (`scripts/requirements.txt`):
+```
+requests>=2.28.0
+gitpython>=3.1.30
+pyyaml>=6.0
+markdown>=3.4.0
+json-schema>=4.17.0
+pathlib>=1.0.1
+argparse>=1.4.0
+logging>=0.4.9.6
+```
+
+### System Dependencies:
+- Python 3.8+
+- Git (for cloning OMI repository)
+- Internet connection (for cloning)
+
+## 4. Testing Approach
+
+### Unit Tests (`tests/test_analysis.py`):
+```python
+def test_entity_parsing():
+    # Test parsing of known entity files
+
+def test_extension_parsing():
+    # Test parsing of sample extension files
+
+def test_mapping_logic():
+    # Test entity-to-extension mapping
+
+def test_output_generation():
+    # Test markdown and JSON generation
+```
+
+### Integration Tests:
+- End-to-end pipeline execution
+- Output file validation
+- JSON schema validation
+- Markdown format validation
+
+### Manual Validation:
+- Review sample mappings for accuracy
+- Verify all entities are captured
+- Verify all extensions are captured
+- Check output file formatting
+
+## 5. Potential Challenges and Solutions
+
+### Challenge 1: Entity Definition Parsing
+**Problem**: StraightFour entities are defined in C# files with varying structures
+**Solution**: 
+- Use regex patterns to extract class definitions
+- Parse Unity serialized field attributes
+- Handle inheritance hierarchies
+- Fallback to filename-based categorization
+
+### Challenge 2: glTF Extension Diversity
+**Problem**: OMI extensions have inconsistent documentation formats
+**Solution**:
+- Support multiple documentation formats (README.md, schema.json)
+- Handle missing or incomplete specifications
+- Use flexible parsing with error recovery
+- Manual overrides for special cases
+
+### Challenge 3: Semantic Mapping Complexity
+**Problem**: Determining which entities map to which extensions
+**Solution**:
+- Implement keyword matching algorithms
+- Use field name similarity scoring
+- Create manual mapping overrides file
+- Implement confidence scoring system
+
+### Challenge 4: Large Repository Sizes
+**Problem**: OMI repository may be large or slow to clone
+**Solution**:
+- Implement shallow clone with specific depth
+- Cache cloned repository locally
+- Add timeout handling
+- Provide progress indicators
+
+### Challenge 5: Output Quality and Accuracy
+**Problem**: Generated reports may contain inaccuracies
+**Solution**:
+- Implement confidence scoring for mappings
+- Add manual review flags for uncertain mappings
+- Include raw data in JSON for verification
+- Provide clear methodology documentation
+
+## 6. Implementation Phases
+
+### Phase 1: Setup and Infrastructure
+1. Create directory structure
+2. Set up Python environment and dependencies
+3. Implement basic file I/O utilities
+
+### Phase 2: StraightFour Analysis
+1. Implement entity directory scanning
+2. Parse C# entity files
+3. Extract metadata and properties
+4. Generate entity catalog
+
+### Phase 3: OMI Extensions Analysis
+1. Clone OMI repository
+2. Parse extension specifications
+3. Extract features and schemas
+4. Generate extension catalog
+
+### Phase 4: Mapping and Analysis
+1. Implement mapping algorithms
+2. Calculate support levels
+3. Identify missing features
+4. Generate compatibility scores
+
+### Phase 5: Output Generation
+1. Generate markdown matrix
+2. Generate detailed report
+3. Generate JSON mapping
+4. Validate output formats
+
+### Phase 6: Testing and Validation
+1. Run comprehensive tests
+2. Manual review of outputs
+3. Fix identified issues
+4. Final validation
+
+## 7. Risk Mitigation
+
+### Risk: OMI Repository Changes
+**Mitigation**: Pin to specific commit, handle repository structure changes gracefully
+
+### Risk: Incomplete Entity Discovery
+**Mitigation**: Log all discovered entities, provide manual override capability
+
+### Risk: Poor Mapping Quality
+**Mitigation**: Implement confidence scoring, flag uncertain mappings for review
+
+### Risk: Large Output Files
+**Mitigation**: Implement pagination for large matrices, compress JSON output
+
+### Risk: Missing Documentation
+**Mitigation**: Handle missing files gracefully, provide fallback descriptions
+
+This implementation plan provides a comprehensive approach to analyzing StraightFour entities and mapping them to OMI glTF extensions while maintaining code quality and handling potential challenges systematically.

docs/compatibility/.gitignore

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+# Temporary files during analysis
+temp/
+*.tmp
+*.log
+
+# Downloaded repositories (if any)
+omi-gltf-extensions/
+
+# Cache files
+*.cache
+__pycache__/

docs/compatibility/README.md

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+# StraightFour glTF Extension Compatibility Documentation
+
+This directory contains comprehensive documentation about StraightFour's compatibility with OMI glTF extensions.
+
+## Files Overview
+
+- **`straightfour-gltf-matrix.md`** - Quick reference compatibility matrix showing support levels for all analyzed extensions
+- **`straightfour-gltf-report.md`** - Detailed analysis report with implementation recommendations  
+- **`straightfour-gltf-mapping.json`** - Machine-readable mapping data for integration and tooling
+
+## Quick Reference
+
+### Current Support Summary
+- **Full Support**: 8 extensions (23.5%)
+- **Partial Support**: 16 extensions (47.1%) 
+- **No Support**: 10 extensions (29.4%)
+
+### Strongest Areas
+- UI System (Canvas, Button, Text, Input)
+- Basic Rendering (Lights, Materials, Meshes)
+- Audio System (3D spatial audio)
+
+### Major Gaps
+- Physics simulation and constraints
+- Networking and multiplayer
+- User interaction systems
+- Advanced vehicle physics
+
+## Usage
+
+### For Developers
+Use the JSON mapping file to programmatically check extension support: