View difference between Paste ID: LFfZ4m0j and xYkAQSTw

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
 namespace Digger
 {
 	public class Terrain : ICreature
 	{
 		public CreatureCommand Act(int x, int y)
 		{
 			return new CreatureCommand() { DeltaX = 0, DeltaY = 0 };
 		}
 
 		public bool DeadInConflict(ICreature conflictedObject)
 		{
 			return true;
 		}
 
 		public int GetDrawingPriority()
 		{
 			return 2;
 		}
 
 		public string GetImageFileName()
 		{
 			return "Terrain.png";
 		}
 	}
 
 	public class Player : ICreature
 	{
 		public static int X, Y = 0;
 		public static int LetX, LetY = 0;
 		public CreatureCommand Act(int x, int y)
 		{
 			X = x;
 			Y = y;
 			switch (Game.KeyPressed)
 			{
 				case System.Windows.Forms.Keys.Left:
 				LetY = 0;
 				LetX = -1;
 				break;
 
 				case System.Windows.Forms.Keys.Up:
 				LetY = -1;
 				LetX = 0;
 				break;
 
 				case System.Windows.Forms.Keys.Right:
 				LetY = 0;
 				LetX = 1;
 				break;
 
 				case System.Windows.Forms.Keys.Down:
 				LetY = 1;
 				LetX = 0;
 				break;
 
 				default:
 				Stay();
 				break;
 			}
 			if (!(x + LetX >= 0 && x + LetX < Game.MapWidth &&
 			y + LetY >= 0 && y + LetY < Game.MapHeight))
 				Stay();
 			if (Game.Map[x + LetX, y + LetY] != null)
 			{
 				if (Game.Map[x + LetX, y + LetY].ToString() == "Digger.Sack")
 					Stay();
 			}
 			return new CreatureCommand() { DeltaX = LetX, DeltaY = LetY };
 		}
 
 		public bool DeadInConflict(ICreature conflictedObject)
 		{
 			var neighbor = conflictedObject.ToString();
 			if (neighbor == "Digger.Gold")
 				Game.Scores += 10;
 			if (neighbor == "Digger.Sack" ||
 			neighbor == "Digger.Monster")
 			{
 				return true;
 			}
 			return false;
 		}
 
 		public int GetDrawingPriority()
 		{
 			return 1;
 		}
 
 		public string GetImageFileName()
 		{
 			return "Digger.png";
 		}
 
 		private static void Stay()
 		{
 			LetX = 0;
 			LetY = 0;
 		}
 	}
 
 	public class Sack : ICreature
 	{
 		private int counter = 0;
 		public static bool DeadlyForPlayer = false;
 
 		public CreatureCommand Act(int x, int y)
 		{
 			if (y < Game.MapHeight - 1)
 			{
 				var map = Game.Map[x, y + 1];
 				if (map == null ||
 					(counter > 0 && (map.ToString() == "Digger.Player" ||
 					map.ToString() == "Digger.Monster")))
 				{
 					counter++;
 					return Fall();
 				}
 			}
 
 			if (counter > 1)
 			{
 				counter = 0;
 				return new CreatureCommand() { DeltaX = 0, DeltaY = 0, TransformTo = new Gold() };
 			}
 			counter = 0;
 			return DoNothing();
 		}
 
 		public bool DeadInConflict(ICreature conflictedObject)
 		{
 			return false;
 		}
 
 		public int GetDrawingPriority()
 		{
 			return 5;
 		}
 
 		public string GetImageFileName()
 		{
 			return "Sack.png";
 		}
 
 		private CreatureCommand Fall()
 		{
 			return new CreatureCommand() { DeltaX = 0, DeltaY = 1 };
 		}
 
 		private CreatureCommand DoNothing()
 		{
 			return new CreatureCommand() { DeltaX = 0, DeltaY = 0 };
 		}
 	}
 
 	public class Gold : ICreature
 	{
 		public CreatureCommand Act(int x, int y)
 		{
 			return new CreatureCommand() { DeltaX = 0, DeltaY = 0 };
 		}
 
 		public bool DeadInConflict(ICreature conflictedObject)
 		{
 			var neighbor = conflictedObject.ToString();
 			return neighbor == "Digger.Player" || neighbor == "Digger.Monster";
 		}
 
 		public int GetDrawingPriority()
 		{
 			return 3;
 		}
 
 		public string GetImageFileName()
 		{
 			return "Gold.png";
 		}
 	}
 
 	public class Monster : ICreature
 	{
 		public CreatureCommand Act(int x, int y)
 		{
 			int dx = 0;
 			int dy = 0;
 
 			if (IsPlayerAlive())
 			{
 				if (Player.X == x)
 				{
 					if (Player.Y < y) dy = -1;
 					else if (Player.Y > y) dy = 1;
 				}
 
 				else if (Player.Y == y)
 				{
 					if (Player.X < x) dx = -1;
 					else if (Player.X > x) dx = 1;
 				}
 				else
 				{
 					if (Player.X < x) dx = -1;
 					else if (Player.X > x) dx = 1;
 				}
 			}
 			else return Stay();
 
 			if (!(x + dx >= 0 && x + dx < Game.MapWidth &&
 			y + dy >= 0 && y + dy < Game.MapHeight))
 				return Stay();
 
 			var map = Game.Map[x + dx, y + dy];
 			if (map != null)
 				if (map.ToString() == "Digger.Terrain" ||
 					map.ToString() == "Digger.Sack" ||
 					map.ToString() == "Digger.Monster")
 					return Stay();
 			return new CreatureCommand() { DeltaX = dx, DeltaY = dy };
 		}
 
 		public bool
 
 		DeadInConflict(ICreature conflictedObject)
 		{
 			var neighbor = conflictedObject.ToString();
 			return neighbor == "Digger.Sack" ||
 			neighbor == "Digger.Monster";
 		}
 
 		public int GetDrawingPriority()
 		{
 			return 0;
 		}
 
 		public string GetImageFileName()
 		{
 			return "Monster.png";
 		}
 
 		static private CreatureCommand Stay()
 		{
 			return new CreatureCommand() { DeltaX = 0, DeltaY = 0 };
 		}
 
 		static private bool IsPlayerAlive()
 		{
 			for (int i = 0; i < Game.MapWidth; i++)
 			for (int j = 0; j < Game.MapHeight; j++)
 			{
 				var map = Game.Map[i, j];
 				if (map != null)
 				{
 					if (map.ToString() == "Digger.Player")
 					{
 						Player.X = i;
 						Player.Y = j;
 						return true;
 					}
 				}
 			}
 			return false;
 		}
 	}
 }