From 1214979d4dd5c01be8875718ba0457c88d783e0e Mon Sep 17 00:00:00 2001
From: kamoshi <18511281+kamoshi@users.noreply.github.com>
Date: Sun, 8 Dec 2019 08:31:40 +0100
Subject: [PATCH] Update worksheet8.sc

---
 2019/Scala/day08/worksheet8.sc | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/2019/Scala/day08/worksheet8.sc b/2019/Scala/day08/worksheet8.sc
index 1b59d68..ecd3508 100644
--- a/2019/Scala/day08/worksheet8.sc
+++ b/2019/Scala/day08/worksheet8.sc
@@ -1,8 +1,33 @@
 import kamlib.Reader
 
-val zeroes = Reader.readString("/input8.txt").toList.map(_.asDigit).grouped(150).toList.map(x => (x.foldLeft(0){(acc, elem) => if (elem==0) acc+1 else acc}, x))
-val minimum = zeroes.minBy(_._1)._2
+val minimum = Reader.readString("/input8.txt").toList
+  .map(_.asDigit).grouped(150).toList
+  .map(x => (x.foldLeft(0){(acc, elem) => if (elem==0) acc+1 else acc}, x))
+  .minBy(_._1)._2
 
 val ones = minimum.foldLeft(0){(acc, next) => if (next==1) acc+1 else acc}
 val twos = minimum.foldLeft(0){(acc, next) => if (next==2) acc+1 else acc}
 println(ones*twos)
+
+// =========== PART 2 =================== //
+
+val array = Reader.readString("/input8.txt").toArray.map(_.asDigit)
+val outputInts2 = Array.ofDim[Int](150)
+
+@scala.annotation.tailrec
+def determineColor(array: Array[Int], nextPointer: Int): Int =
+{
+  array(nextPointer) match
+  {
+    case 0 => 0
+    case 1 => 1
+    case 2 => determineColor(array, nextPointer+150)
+  }
+}
+
+for(i<-0 until 150)
+{
+  outputInts2(i) = determineColor(array, i)
+}
+
+outputInts2.map(x => if (x == 1) 'X' else '.').grouped(25).foreach(x => println(x.mkString))