From 57a5e0d8b99df7bc14e685e5d8c4495cc7eed5f3 Mon Sep 17 00:00:00 2001
From: Nat Lasseter <user@4574.co.uk>
Date: Sun, 8 Dec 2019 07:45:56 +0000
Subject: Day 08

---
 day08/part2 | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100755 day08/part2

(limited to 'day08/part2')

diff --git a/day08/part2 b/day08/part2
new file mode 100755
index 0000000..5d56a8c
--- /dev/null
+++ b/day08/part2
@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+
+W = 25
+T = 6
+
+input = $stdin.readlines[0].strip.chars.map(&:to_i)
+
+layers = input.each_slice(W * T).to_a
+
+image = layers.pop
+
+layers.reverse.each do |layer|
+  layer.each_index do |i|
+    case layer[i]
+    when 0
+      image[i] = 0
+    when 1
+      image[i] = 1
+    end
+  end
+end
+
+puts image.map{|p|p == 0 ? " " : "█"}.each_slice(W).map(&:join)
-- 
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