1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
const initialBoard = [
[0, 1, 0],
[0, 0, 1],
[1, 1, 1],
[0, 0, 0]
]
const getNextState = (board) => {
const rows = board.length
const cols = board[0].length
const countLiveNeighbors = (board, x, y) => {
return [-1, 0, 1].reduce((acc, dx) =>
acc + [-1, 0, 1].reduce((acc, dy) =>
(dx === 0 && dy === 0) || x + dx < 0 || y + dy < 0 || x + dx >= rows || y + dy >= cols ? acc : acc + board[x + dx][y + dy]
, 0)
, 0)
}
return board.map((row, x) =>
row.map((cell, y) => {
const liveNeighbors = countLiveNeighbors(board, x, y)
return (cell === 1 && (liveNeighbors === 2 || liveNeighbors === 3)) || (cell === 0 && liveNeighbors === 3) ? 1 : 0
})
)
}
const printBoard = (board) => {
console.clear()
console.log(board.map(row => row.join(' ')).join('\n'))
}
const runGame = async (initialBoard, generations) => {
let board = initialBoard
for (let i = 0; i < generations; i++) {
printBoard(board)
board = getNextState(board)
await new Promise(resolve => setTimeout(resolve, 500)) // wait before printing the next step.
}
}
runGame(initialBoard, 5)
|