Day 13 - Part 2

Day13/Day13.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Diagnostics;
 using System.IO;
 using System.Linq;
 
@@ -7,13 +8,15 @@ namespace Advent
 {
     public static class Day13
     {
+        private static Dictionary<Tuple<long, long>, long> _tiles;
+
         public static void Execute()
         {
-            var lines = File.ReadAllLines(@".\Day13\input.txt");
+            var lines = File.ReadAllLines(@".\Day13\input2.txt");
 
-            var game = new IntcodeComputer(lines[0], 0);
+            var game = new IntcodeComputer(lines[0], 0, OnInput);
 
-            var tiles = new Dictionary<Tuple<long, long>, long>();
+            _tiles = new Dictionary<Tuple<long, long>, long>();
 
             while (!game.Halted)
             {
@@ -21,10 +24,78 @@ namespace Advent
                 var y = game.Execute(0);
                 var tile = game.Execute(0);
 
-                tiles[new Tuple<long, long>(x, y)] = tile;
+                _tiles[new Tuple<long, long>(x, y)] = tile;
             }
 
-            Console.WriteLine(tiles.Values.Count(t => t == 2));
+            var score = _tiles[new Tuple<long, long>(-1, 0)];
+
+            Console.WriteLine(score);
+
+            //Console.WriteLine(_tiles.Values.Count(t => t == 2));
+        }
+
+        private static long OnInput()
+        {
+            //DrawScreen(_tiles);
+
+            var ballPos = _tiles.First(t => t.Value == 4);
+            var paddlePos = _tiles.First(t => t.Value == 3);
+
+            if (ballPos.Key.Item1 > paddlePos.Key.Item1)
+                return 1;
+
+            if (ballPos.Key.Item1 < paddlePos.Key.Item1)
+                return -1;
+
+            return 0;
+
+            //Console.WriteLine();
+            //Console.WriteLine();
+            //Console.Write("Input: ");
+
+            //var key = Console.ReadKey();
+
+            //if (key.Key == ConsoleKey.LeftArrow)
+            //    return -1;
+
+            //if (key.Key == ConsoleKey.RightArrow)
+            //    return 1;
+
+            //return 0;
+        }
+
+        private static void DrawScreen(Dictionary<Tuple<long, long>, long> tiles)
+        {
+            foreach (var tile in tiles)
+            {
+                if (tile.Key.Item1 == -1 && tile.Key.Item2 == 0)
+                {
+                    Debug.WriteLine($"Score: {tile.Value}");
+                    continue;
+                }
+
+                Console.SetCursorPosition((int)tile.Key.Item1, (int)tile.Key.Item2);
+
+                var c = ' ';
+
+                switch (tile.Value)
+                {
+                    case 1:
+                        c = 'W';
+                        break;
+                    case 2:
+                        c = 'B';
+                        break;
+                    case 3:
+                        c = 'P';
+                        break;
+                    case 4:
+                        c = 'O';
+                        break;
+                }
+
+                Console.Write(c);
+            }
         }
     }
 }