From 9ac24ee0fa0d5e58250530fa3e94bd1427be5281 Mon Sep 17 00:00:00 2001
From: Aelita4 <kontakt@mikorosa.pl>
Date: Sat, 10 Dec 2022 17:38:47 +0100
Subject: [PATCH] 10_2

---
 day10/index.js | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/day10/index.js b/day10/index.js
index 76319c8..b2f6fa8 100644
--- a/day10/index.js
+++ b/day10/index.js
@@ -2,9 +2,17 @@ import { readFileSync } from "fs";
 
 const input = readFileSync("instructions.txt", "utf-8");
 
+let display = "";
+
+function drawCRT(cycle, pointer) {
+    if((cycle - 1) % 40 === 0) display += "\n"
+
+    if(Math.abs(((cycle - 1) % 40) - pointer) <= 1) display += "#";
+    else display += ".";
+}
+
 let xRegister = 1;
 let cycle = 0;
-let strengthSum = 0;
 
 input.split('\n').forEach(line => {
     const instruction = line.split(' ');
@@ -12,17 +20,18 @@ input.split('\n').forEach(line => {
     switch(instruction[0]) {
         case "noop":
             cycle++;
-            if((cycle + 20) % 40 === 0) strengthSum += (cycle * xRegister);
+            drawCRT(cycle, xRegister);
             break;
         case "addx":
             cycle++;
-            if((cycle + 20) % 40 === 0) strengthSum += (cycle * xRegister);
+            drawCRT(cycle, xRegister);
             cycle++;
-            
-            if((cycle + 20) % 40 === 0) strengthSum += (cycle * xRegister);
+            drawCRT(cycle, xRegister);
             xRegister += parseInt(instruction[1]);
             break;
     }
+
+
 });
 
-console.log(strengthSum)
\ No newline at end of file
+console.log(display)
\ No newline at end of file