Family Day update

Task/Conways-Game-of-Life/JavaScript/conways-game-of-life-4.js

@@ -0,0 +1,70 @@
+const alive = 1;
+const dead = 0;
+
+const conwaysGameOfLife = (game) => {
+  const newGame = []
+  for (let y = 0; y < game.length; y += 1) {
+    const newRow = []
+    for (let x = 0; x < game[y].length; x += 1) {
+      const cell = game[y][x];
+      const prevX = x > 0 ? x - 1 : x;
+      const nextX = x < game[y].length - 1 ? x + 2 : x + 1;
+      const counter =
+        (game[y - 1] ? game[y - 1].slice(prevX, nextX).reduce((acc, v) => acc + v) : 0) +
+        (game[y][x - 1] || 0) + (game[y][x + 1] || 0) +
+        (game[y + 1] ? game[y + 1].slice(prevX, nextX).reduce((acc, v) => acc + v) : 0)
+      cell === alive
+        ? counter > 1 && counter <= 3
+          ? newRow.push(alive)
+          : newRow.push(dead)
+        : counter === 3
+          ? newRow.push(alive)
+          : newRow.push(dead)
+    }
+    newGame.push(newRow)
+  }
+  return newGame
+}
+
+const generateGame = (height, width) => {
+  return Array.from({ length: height }, (v, k) => (
+    Array.from({ length: width}, (v, k) => {
+      return (Math.random() * 100 | 0) < 50 ? dead : alive
+    })
+  ))
+}
+
+const output = (game) =>{
+  process.stdout.write('\033c');
+  let screen = '';
+  for (let i = 0; i < game.length; i += 1) {
+    screen += game[i].join('')
+    screen += '\n'
+  }
+  console.log(screen)
+}
+
+const setup = ((game) => {
+  return () => {
+    setInterval(() => {
+    output(game)
+    const newGame = conwaysGameOfLife(game)
+    game = newGame
+    }, 1000)
+  }
+})
+
+// for random game
+// const game = generateGame(10, 10)
+
+// glider test
+const game = [
+  [0,0,0,0,0,0,0,0,0,0],
+  [0,0,1,0,0,0,0,0,0,0],
+  [0,0,0,1,0,0,0,0,0,0],
+  [0,1,1,1,0,0,0,0,0,0],
+  [0,0,0,0,0,0,0,0,0,0],
+  [0,0,0,0,0,0,0,0,0,0]
+];
+const run = setup(game);
+run()