@nichathan-gaming/map-generator/mapGenerator/primsGenerator/getNewIndexes.js

Creates and generates a 2 dimensional array with various path generation functions.

import assertIndex from "../helpers/assertIndex.js";
import getConnectedIndexes from "../helpers/getConnectedIndexes.js";
import mapGenerator from "../mapGenerator.js";
import { assertArray, assertInstanceOf } from "@nichathan-gaming/assertions";

/**
 * Gets new indexes based on the given index for Prims
 * @param {mapGenerator} map The current game map element
 * @param {[number, number]} searchIndex The index to use for new indexes
 * @param {T} baseValue A value that denotes a part of the map that cannot be walked on
 * @param {(a, b)=>boolean} equalityFunction A function to determine if 2 elements are equal
 * @returns {[number, number][]} A shuffled array of new indexes
 */
const getNewIndexes = (map, searchIndex, currentLocations, baseValue) => {
    assertInstanceOf(map, mapGenerator);
    assertIndex(searchIndex);
    assertArray(currentLocations);
    map.assertBasicType(baseValue);

    return getConnectedIndexes(map, searchIndex).filter(el=>{        
        return !currentLocations.includes(el) && !map.isValueAtIndexEqualToValue(el, baseValue);
    });
};

export default getNewIndexes;