PuzzleGame/DungeonMapGenerator/DungeonMapGenerator/Room.cs

using System;
using System.Collections.Generic;
using System.Linq;
using Newtonsoft.Json;
using Newtonsoft.Json.Converters;

namespace DungeonMapGenerator
{
    public enum RoomSide
    {
        Top,
        Bottom,
        Left,
        Right
    }
    [JsonConverter(typeof(StringEnumConverter))]
    public enum RoomType
    {
        Normal,
        Entrance,
        Monster,
        Boss
    }
    
    public class Room
    {
        private static int _nextId = 1;
        
        public RoomType TypeOfRoom { get; set; }
        public int Height { get; set; }
        public int Width { get; set; }
        public Point PositionOfTopLeft { get; set; }
        public int Id { get; set; }
        
        [JsonProperty("AdjacentRoomIds")]
        private HashSet<int> _adjacentRoomIds = new HashSet<int>();
        private readonly Dictionary<RoomSide, List<Room>> _adjacentRoomsBySide = new Dictionary<RoomSide, List<Room>>();

        public Room()
        {
            
        }
        
        public Room(RoomType roomType, int width, int height, Point positionOfTopLeft)
        {
            Id = _nextId++;
            TypeOfRoom = roomType;
            Width = width;
            Height = height;
            PositionOfTopLeft = positionOfTopLeft;
        }

        public void AddAdjacentRoomId(int id)
        {
            _adjacentRoomIds.Add(id);
        }

        public HashSet<int> GetAdjacentRoomIds()
        {
            return new HashSet<int>(_adjacentRoomIds);
        }

        public List<Point> GetPointsInRoom()
        {
            List<Point> points = new List<Point>();
            for (int i = 0; i < Width; i++)
            {
                for (int j = 0; j < Height; j++)
                {
                    points.Add(new Point(PositionOfTopLeft.X + i, PositionOfTopLeft.Y + j));
                }
            }

            return points;
        }

        public bool ContainsPoint(Point point)
        {
            return GetPointsInRoom().Any(p => p.Equals(point));
        }

        public int GetDistanceToRoom(Room other)
        {
            Point centerOfRoom = GetCenterOfRoom();
            Point centerOfOther = other.GetCenterOfRoom();
            return centerOfRoom.ManhattanDistance(centerOfOther);
        }

        public Point GetCenterOfRoom()
        {
            return new Point(PositionOfTopLeft.X + Width / 2, PositionOfTopLeft.Y + Height / 2);
        }
        
        public void AddAdjacentRoomBySide(Room room, RoomSide side)
        {
            if (!_adjacentRoomsBySide.ContainsKey(side))
            {
                _adjacentRoomsBySide[side] = new List<Room>();
            }

            // Prevent duplicates
            if (!_adjacentRoomsBySide[side].Contains(room))
            {
                _adjacentRoomsBySide[side].Add(room);
                room.AddAdjacentRoomBySide(this, GetOppositeSide(side)); // Ensure bidirectional linkage
            }
        }

        public IEnumerable<Room> GetAdjacentRooms()
        {
            return _adjacentRoomsBySide.Values.SelectMany(roomList => roomList);
        }

        public Dictionary<RoomSide, List<Room>> GetAdjacentRoomsDict()
        {
            return new Dictionary<RoomSide, List<Room>>(_adjacentRoomsBySide);
        }
        
        public List<(Point, RoomSide)> GetAdjacentPoints()
        {
            var adjacentPoints = new List<(Point, RoomSide)>();

            int x = PositionOfTopLeft.X;
            int y = PositionOfTopLeft.Y;
            int width = Width;
            int height = Height;

            // Add points to the left and right of the room
            for (int i = 0; i < height; i++)
            {
                adjacentPoints.Add((new Point(x - 1, y + i), RoomSide.Left));
                adjacentPoints.Add((new Point(x + width, y + i), RoomSide.Right));
            }

            // Add points above and below the room
            for (int i = 0; i < width; i++)
            {
                adjacentPoints.Add((new Point(x + i, y - 1), RoomSide.Top));
                adjacentPoints.Add((new Point(x + i, y + height), RoomSide.Bottom));
            }

            return adjacentPoints;
        }

        // Helper method to get the opposite side
        private RoomSide GetOppositeSide(RoomSide side)
        {
            switch (side)
            {
                case RoomSide.Top:
                    return RoomSide.Bottom;
                case RoomSide.Bottom:
                    return RoomSide.Top;
                case RoomSide.Left:
                    return RoomSide.Right;
                case RoomSide.Right:
                    return RoomSide.Left;
                default:
                    throw new ArgumentException("Invalid RoomSide", nameof(side));
            }
        }
    }
}