#### Minesweeper

O
```/*
* Author: IcarusTheFly (https://github.com/IcarusTheFly)
* Minesweeper explanation can be found in: https://en.wikipedia.org/wiki/Minesweeper_(video_game)
* This function will take a rectangular matrix filled with boolean values - the value for a cell
* with a mine will be true, otherwise it will be false.
* As a result it will return a rectangular matrix where each cell will have an integer that
* counts all the mines in the adjacent cells
* Two cells should share at least one corner to be considered adjacent
*/

/**
* @function minesweeper
* @description It counts the amount of mines surrounding every cell and returns a formatted matrix
* @param {boolean[][]} matrix
* @returns {number[][]} Matrix of numbers with the amount of mines surrounding each cell
*/

export const minesweeper = (matrix) => {
const arrResult = []
for (let x = 0; x < matrix.length; x++) {
const arrLine = []
for (let y = 0; y < matrix[x].length; y++) {
let minesInCell = 0
for (let xi = x - 1; xi <= x + 1; xi++) {
if (matrix[xi] !== undefined) {
for (let yi = y - 1; yi <= y + 1; yi++) {
if ((xi !== x || yi !== y) && matrix[xi][yi] === true) {
minesInCell++
}
}
}
}
arrLine.push(minesInCell)
}
arrResult.push(arrLine)
}
return arrResult
}
```  