Index: demo

index.js

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+const {
+  lifeStep
+} = require('./src/life')
+
+const {
+  gridToArrs,
+  arrToPattern,
+  patternToBraille
+} = require('./src/braille')
+
+/* */
+
+const rnd = _ =>
+  (2 * Math.random()) | 0
+
+const randomGrid = (h, w) =>
+  Array(h).fill().map(_ =>
+    Array(w).fill().map(_ =>
+      rnd()))
+
+/* */
+
+process.stdout.write('\x1Bc')
+
+const { rows, columns } = process.stdout
+let grid = lifeStep(
+  randomGrid(rows * 4, columns * 2))
+
+setInterval(_ => {
+  const img = []
+    .concat(...gridToArrs(grid))
+    .map(arrToPattern)
+    .map(patternToBraille)
+    .join``
+
+  process.stdout.cursorTo(0, 0)
+  process.stdout.write(img)
+
+  grid = lifeStep(grid)
+}, 500)