connect multiple rooms with doors

Assets/Escape Room Engine/Engine/Scripts/Modules/DoorModule.cs

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+using UnityEngine;
+
+namespace Escape_Room_Engine.Engine.Scripts.Modules
+{
+    public enum DoorType
+    {
+        Entrance = ModuleType.DoorEntrance, Exit = ModuleType.DoorExit
+    }
+    
+    public class DoorModule : Module
+    {
+        public bool IsEntrance => IsType((ModuleType)DoorType.Entrance);
+        public bool IsExit => IsType((ModuleType)DoorType.Exit);
+        
+        internal DoorModule(DoorType type, Space space) : base(space)
+        {
+            types.Add((ModuleType)type);
+            srDimensions.Size = Vector2Int.one; // door always has size 1x1
+        }
+
+        public override string ToString()
+        {
+            return $"{(IsEntrance ? "Entrance" : IsExit ? "Exit" : "Unknown")} door";
+        }
+    }
+}

Assets/Escape Room Engine/Engine/Scripts/Modules/DoorModule.cs.meta

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+guid: 05af827f50ab469f952abbb62109877d
+timeCreated: 1667226128

Assets/Escape Room Engine/Engine/Scripts/Modules/Module.cs

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+using System;
+using System.Collections.Generic;
+using Escape_Room_Engine.Engine.Scripts.Utilities;
+using UnityEngine;
+using Logger = Escape_Room_Engine.Engine.Scripts.Utilities.Logger;
+using LogType = Escape_Room_Engine.Engine.Scripts.Utilities.LogType;
+
+namespace Escape_Room_Engine.Engine.Scripts.Modules
+{
+    public class Module
+    {
+        /// <summary>
+        /// Get the space relative (<i>SR</i>) position of this module.
+        /// </summary>
+        internal Vector2Int SrPosition => srDimensions.Position;
+        /// <summary>
+        /// Get the room relative (<i>RR</i>) position of this module.
+        /// </summary>
+        internal Vector2Int RrPosition => space.ToRoomRelative(SrPosition);
+
+        internal readonly Space space;
+        
+        protected GameObject _moduleObject;
+        protected readonly List<ModuleType> types = new();
+        /// <summary>
+        /// The space relative (<i>SR</i>) dimensions of this module.
+        /// </summary>
+        protected Dimensions srDimensions;
+
+        internal Module(Space space)
+        {
+            this.space = space;
+        }
+
+        internal bool IsType(ModuleType type)
+        {
+            return types.Contains(type);
+        }
+
+        
+        /// <summary>
+        /// Place this module with a position relative to the room.
+        /// </summary>
+        /// <param name="rrPosition">The room relative (<i>RR</i>) position of this module. Must be inside the space dimensions.</param>
+        /// <exception cref="Exception">If the position is not inside the space dimensions.</exception>
+        internal void PlaceRoomRelative(Vector2Int rrPosition) => Place(space.ToSpaceRelative(rrPosition));
+        /// <summary>
+        /// Place this module with a position relative to the space it is in.
+        /// </summary>
+        /// <param name="srPosition">The space relative (<i>SR</i>) position of this module. Must be inside the space dimensions.</param>
+        /// <exception cref="Exception">If the position is not inside the space dimensions.</exception>
+        internal void Place(Vector2Int srPosition) {
+            if (space != null && !srPosition.IsInsideRelative(space.rrDimensions))
+            {
+                throw new Exception($"Trying to place {this} at {srPosition}, which is outside space dimensions {space.rrDimensions}.");
+            }
+            
+            srDimensions.Position = srPosition;
+            
+            Logger.Log($"{this} has been placed at {srPosition} (SR)", LogType.ModulePlacement);
+        }
+
+        public override string ToString()
+        {
+            return $"Module ({string.Join(',', types.ConvertAll(type => type.ToString()))})";
+        }
+    }
+}

Assets/Escape Room Engine/Engine/Scripts/Modules/Module.cs.meta

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+guid: bef95c0b6e3be5847939fffa4294f99f
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
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Assets/Escape Room Engine/Engine/Scripts/Modules/ModuleType.cs

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+namespace Escape_Room_Engine.Engine.Scripts.Modules
+{
+    public enum ModuleType
+    {
+        DoorEntrance, DoorExit, // door types
+    }
+}

Assets/Escape Room Engine/Engine/Scripts/Modules/ModuleType.cs.meta

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+fileFormatVersion: 2
+guid: 602fa211234b4068bca5ff38a2f9593f
+timeCreated: 1667230405