Fantasy-Map-Generator/procedural/docs/Data_Mismatch_Task_Activity.md

Data Mismatch Task Activity Log

This file logs all completed activities for fixing data mismatches in the Fantasy Map Generator.

Task 1: Add Property Checks to All Modules

Status: Completed Date: 2025-08-05

Files Modified:

1. src/engine/modules/heightmap-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for graph object and graph.cells structure
• Check for config.heightmap.templateId
• Check for config.debug section

2. src/engine/modules/lakes.js

Changes made: Added property validation checks at the start of the detectCloseLakes function

• Check for pack.cells and pack.features structures
• Check for pack.cells.c (neighbors) and pack.cells.f (features)
• Check for heights array

3. src/engine/modules/burgs-and-states.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.culture from Cultures module
• Check for pack.cells.s (suitability) from Cell ranking
• Check for pack.cultures from Cultures module
• Check for config.statesNumber

4. src/engine/modules/cultures-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.s (suitability) from Cell ranking
• Check for config.culturesInput and config.culturesInSetNumber
• Check for config.debug section

5. src/engine/modules/biomes.js

Changes made: Added property validation checks at the start of the define function

• Check for pack.cells.h (heights) from heightmap processing
• Check for grid.cells.temp and grid.cells.prec from geography module
• Check for pack.cells.g (grid reference) from pack generation
• Check for config.debug section

6. src/engine/modules/features.js

Changes made: Added property validation checks to two functions:

• markupGrid function: Check for grid.cells.h (heights), grid.cells.c (neighbors), and config.debug
• markupPack function: Check for pack.cells.h (heights), pack.cells.c (neighbors), and grid.features

7. src/engine/modules/river-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.h (heights) from heightmap processing
• Check for pack.cells.t (distance field) from features module
• Check for pack.features from features module
• Check for modules.Lakes dependency
• Check for config.debug section

8. src/engine/modules/religions-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.culture from Cultures module
• Check for pack.cells.state from BurgsAndStates module
• Check for pack.cultures from Cultures module
• Check for config.religionsNumber
• Check for config.debug section

9. src/engine/modules/provinces-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.state from BurgsAndStates module
• Check for pack.cells.burg from BurgsAndStates module
• Check for pack.states from BurgsAndStates module
• Check for pack.burgs from BurgsAndStates module
• Check for config.debug section

10. src/engine/modules/routes-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.burg from BurgsAndStates module
• Check for pack.burgs from BurgsAndStates module
• Check for pack.cells.h (heights) from heightmap processing
• Check for pack.cells.t (distance field) from features module

11. src/engine/modules/military-generator.js

Changes made: Added property validation checks at the start of the generate function

• Check for pack.cells.state from BurgsAndStates module
• Check for pack.states from BurgsAndStates module
• Check for pack.burgs from BurgsAndStates module
• Check for config.debug section

Summary:

Added property validation checks to 11 critical engine modules. Each module now validates required dependencies and configuration sections at startup, providing clear error messages when properties are missing. This implements Fix 1 from the Data_Mismatch_Tasks.md plan - adding simple property checks to fail fast with helpful error messages.

All checks follow the pattern:

// Check required properties exist
if (!requiredProperty) {
  throw new Error("ModuleName requires requiredProperty from DependencyModule");
}

This ensures clear dependency tracking and early error detection when modules are called with missing prerequisites.

Task 2: Update Config Validator for Missing Fields

Status: Completed Date: 2025-08-05

Files Modified:

1. src/viewer/config-validator.js

Changes made: Added simple required fields validation as specified in the task

Functions added:

• validateRequiredFields(config, result) - Validates specific required fields for modules
• getCultureSetMax(culturesSet) - Helper function to get maximum cultures for culture sets

Required fields validated:

• cultures.culturesInSetNumber - Validates based on culturesSet maximum
• rivers.cellsCount - Validates against graph.cellsDesired or defaults to 10000

Implementation: Added simple check for missing fields with warnings that show what the default values would be.

Summary:

Updated the existing config validator to implement Fix 2 from the Data_Mismatch_Tasks.md plan by adding the specific required fields validation as shown in the task example. The validator now checks for missing cultures.culturesInSetNumber and rivers.cellsCount fields and provides warnings when they are missing.

Task 3: Update Documentation with Property Timeline

Status: Completed Date: 2025-08-05

Files Modified:

1. docs/FMG Data Model.md

Changes made: Added comprehensive Property Availability Timeline section as specified in the task

New section added: "Property Availability Timeline"

• Grid Properties section: Documents when each grid property becomes available during generation
• Pack Properties section: Documents when each pack property becomes available during generation
• Module Execution Flow: Added mermaid flowchart diagram showing complete module execution sequence

Properties documented:

• Grid properties: cells.h, cells.f, cells.t, cells.temp, cells.prec
• Pack properties: cells.h, cells.f, cells.t, cells.fl, cells.r, cells.biome, cells.s, cells.pop, cells.culture, cells.burg, cells.state, cells.religion, cells.province

Mermaid diagram: Visual flowchart showing the complete generation pipeline from initial grid through all modules to final map data, with annotations showing what properties each module adds.

Summary:

Implemented Fix 3 from the Data_Mismatch_Tasks.md plan by adding the Property Availability Timeline section to the existing documentation. This addresses the "Pack/Grid structure differences" issue by clearly documenting when each property becomes available during the generation process.

The documentation now provides:

1. Clear reference for developers - Shows exactly when each property is available
2. Module dependency tracking - Visual flow shows which modules depend on others
3. Pack vs Grid clarification - Distinguishes between grid (coarse mesh) and pack (refined mesh) properties
4. Complete generation pipeline - Mermaid diagram shows the full execution flow from main.js

This helps developers understand data availability and prevents undefined reference errors by showing the exact timeline of when properties are added to the data structures.

Task 4: Add Requirement Comments to All Modules

Status: Completed Date: 2025-08-05

Files Modified:

1. src/engine/modules/heightmap-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: graph.cells, config.heightmap.templateId, config.debug
• PROVIDES: grid.cells.h (height values)

2. src/engine/modules/lakes.js

Changes made: Added JSDoc-style requirement comment block at the top of the detectCloseLakes function

• REQUIRES: pack.cells, pack.features, pack.cells.c, pack.cells.f, heights array
• PROVIDES: Updated pack.features with closed property

3. src/engine/modules/features.js

Changes made: Added JSDoc-style requirement comment blocks to both main functions

• markupGrid REQUIRES: grid.cells.h, grid.cells.c, config.debug
• markupGrid PROVIDES: grid.cells.f, grid.cells.t, grid.features
• markupPack REQUIRES: pack.cells.h, pack.cells.c, grid.features
• markupPack PROVIDES: pack.cells.f, pack.cells.t, pack.features

4. src/engine/modules/biomes.js

Changes made: Added JSDoc-style requirement comment block at the top of the define function

• REQUIRES: pack.cells.h, grid.cells.temp, grid.cells.prec, pack.cells.g, config.debug
• PROVIDES: pack.cells.biome

5. src/engine/modules/cultures-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.s, config.culturesInput, config.culturesInSetNumber
• PROVIDES: pack.cells.culture, pack.cultures

6. src/engine/modules/burgs-and-states.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.culture, pack.cells.s, pack.cultures, config.statesNumber
• PROVIDES: pack.burgs, pack.states, pack.cells.burg, pack.cells.state

7. src/engine/modules/river-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.h, pack.cells.t, pack.features, modules.Lakes, config.debug
• PROVIDES: pack.cells.fl, pack.cells.r, pack.cells.conf

8. src/engine/modules/religions-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.culture, pack.cells.state, pack.cultures, config.religionsNumber, config.debug
• PROVIDES: pack.cells.religion, pack.religions

9. src/engine/modules/provinces-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.state, pack.cells.burg, pack.states, pack.burgs, config.debug
• PROVIDES: pack.cells.province, pack.provinces

10. src/engine/modules/routes-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.burg, pack.burgs, pack.cells.h, pack.cells.t
• PROVIDES: pack.routes, pack.cells.routes

11. src/engine/modules/military-generator.js

Changes made: Added JSDoc-style requirement comment block at the top of the generate function

• REQUIRES: pack.cells.state, pack.states, pack.burgs, config.debug
• PROVIDES: pack.states[].military

Summary:

Implemented Fix 4 from the Data_Mismatch_Tasks.md plan by adding requirement comments to all 11 major engine modules. Each module now has clear JSDoc-style documentation at the top of its main function showing:

1. Self-documenting modules - Each module clearly states what it requires and provides
2. No runtime overhead - Comments are compile-time only and don't affect performance
3. Clear for developers - Easy to understand dependencies at a glance
4. Dependency tracking - Shows exact relationships between modules

The comment format follows the task specification:

/**
 * Module description
 *
 * REQUIRES:
 *   - dependency1 (from source module)
 *   - dependency2 (from source module)
 *
 * PROVIDES:
 *   - output1 (what this module adds)
 *   - output2 (what this module adds)
 */

This addresses the "Module dependencies" issue by making all dependencies explicit and self-documenting, complementing the runtime property checks from Task 1.