Fantasy-Map-Generator/procedural/src/engine/support/features_external.md

External Dependencies for features.js

The refactored features.js module requires the following external dependencies to be imported:

Module Dependencies

Lakes module

• Functions used:
  • Lakes.getHeight(feature) - Calculate height for lake features
  • Lakes.getName(feature) - Generate names for lake features

Utility Functions Required

The following utility functions need to be passed via the utils parameter:

Core Utilities

• INT8_MAX - Maximum value for Int8 arrays
• rn(value) - Rounding function
• isLand(cellId) - Check if a cell is land
• isWater(cellId) - Check if a cell is water
• dist2(point1, point2) - Calculate squared distance between two points
• clipPoly(vertices) - Clip polygon vertices
• unique(array) - Remove duplicates from array
• createTypedArray({maxValue, length}) - Create appropriately typed array
• connectVertices({vertices, startingVertex, ofSameType, closeRing}) - Connect vertices to form paths

D3.js Integration

• d3.polygonArea(points) - Calculate polygon area (accessed via utils.d3.polygonArea)

Configuration Dependencies

The following configuration values need to be passed via the config parameter:

Timing and Randomization

• TIME - Boolean flag to enable/disable timing logs
• seed - Random seed value for reproducible generation
• aleaPRNG - Pseudo-random number generator function

Module Integration

The module should be imported and used as follows:

import { markupGrid, markupPack, specify } from './features.js';
import { Lakes } from './lakes.js';

// Usage example
const updatedGrid = markupGrid(grid, config, utils);
const updatedPack = markupPack(pack, grid, config, utils, { Lakes });
const finalPack = specify(updatedPack, grid, { Lakes });