boggle-game-solver/dist/utils.js

Expansion of node-boggle-solver by adding multiple dictionary options.

const config = require('./config')

module.exports= {
  /**
  * Determines the size of the matrix
  * based on the number of characters passed in
  * A 0 (zero) is returned for an invalid size
  * eg. boggleSize(9) // 3
  * eg. boggleSize(10) // 0
  * @returns Number
  */
  boggleSize(size) {
    let counter = config.minSize;

    while(counter < size) {
      const matrixSize = counter * counter;

      if (matrixSize === size) {
        return counter;
      }

      counter += 1;
    }

    return 0;
  },

  /**
  * Checks if the target exists in source
  * Both are 2-d arrays e.g. arrayMatch([[0, 0]], [0, 0]); => true
  * @returns Boolean
  */
  arrayMatch(source, target) {
    return source.some((item) => {
      return item.every((x, index) => {
        return x === target[index];
      });
    });
  },

  getBoggleMatrix(size, letters) {
    const matrix = [];
    let counter = 0;

    [].reduce.call(letters, (acc, letter, index) => {
      counter += 1;
      acc.push(letter);

      if (counter === size) {
        matrix.push(acc);
        acc = [];
        counter = 0;
      }

      return acc;
    }, []);

    return matrix;
  },
};