no overlap requirement

Assets/Escape Room Engine/Engine/Requirements/No Overlap.asset

@@ -0,0 +1,14 @@
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+  m_Name: No Overlap
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Assets/Escape Room Engine/Engine/Requirements/No Overlap.asset.meta

@@ -0,0 +1,8 @@
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Assets/Escape Room Engine/Engine/Scripts/Engine.cs

@@ -111,7 +111,7 @@ namespace Escape_Room_Engine.Engine.Scripts
             }
             
             // orient puzzle
-            HashSet<Orientation> orientationCandidates = Module.EveryOrientation;
+            var orientationCandidates = Module.EveryOrientation;
             Logger.Log($"orientation candidatesA: {string.Join(",", orientationCandidates.ToList().ConvertAll(c => c.ToString()))}", LogType.RequirementResolution);
             puzzle._description.RequirementsOfType<OrientationRequirement>().ForEach(requirement =>
                 orientationCandidates.IntersectWith(requirement.OrientationCandidates(puzzle, space)));

Assets/Escape Room Engine/Engine/Scripts/Requirements/NoOverlap.cs

@@ -0,0 +1,19 @@
+using System.Collections.Generic;
+using Escape_Room_Engine.Engine.Scripts.Modules;
+using UnityEngine;
+
+namespace Escape_Room_Engine.Engine.Scripts.Requirements
+{
+    [CreateAssetMenu(menuName = "Requirements/No Overlap")]
+    public class NoOverlap : PlacementRequirement
+    {
+        public override IEnumerable<Vector2Int> PlacementCandidates(Module module, Space space)
+        {
+            var edgePositions = space.rrDimensions.EveryPosition;
+            
+            space.Modules.ForEach(m => edgePositions.Remove(m.SrPosition));
+
+            return edgePositions;
+        }
+    }
+}

Assets/Escape Room Engine/Engine/Scripts/Requirements/NoOverlap.cs.meta

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Assets/Escape Room Engine/Engine/Scripts/Requirements/OrientationRequirement.cs

@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using Escape_Room_Engine.Engine.Scripts.Modules;
-using UnityEngine;
 
 namespace Escape_Room_Engine.Engine.Scripts.Requirements
 {

Assets/Escape Room Engine/Engine/Scripts/Space.cs

@@ -10,9 +10,9 @@ namespace Escape_Room_Engine.Engine.Scripts
         /// The room relative (<i>RR</i>) dimensions of this space.
         /// </summary>
         internal readonly Dimensions rrDimensions;
+        internal List<Module> Modules { get; } = new(2);
         
         private GameObject _spaceObject;
-        private List<Module> _modules = new(2);
 
         internal Space(Dimensions rrDimensions, Passage entrance)
         {
@@ -26,7 +26,7 @@ namespace Escape_Room_Engine.Engine.Scripts
 
         internal void AddModule(Module module)
         {
-            _modules.Add(module);
+            Modules.Add(module);
         }
 
         internal void InstantiateSpace(Transform parent, string name)
@@ -42,7 +42,7 @@ namespace Escape_Room_Engine.Engine.Scripts
             meshRenderer.material = Engine.DefaultEngine.roomMaterial;
             
             // instantiate all modules inside this space
-            _modules.ForEach(module => module.InstantiateModule(_spaceObject.transform));
+            Modules.ForEach(module => module.InstantiateModule(_spaceObject.transform));
         }
 
         /// <summary>

Assets/Scenes/TestScene.unity

@@ -1233,8 +1233,8 @@ MonoBehaviour:
   m_Name: 
   m_EditorClassIdentifier: 
   roomMaterial: {fileID: 2100000, guid: 39e2ed014eda5d6408c16fbf0fa80781, type: 2}
-  minPuzzleCount: 1
+  minPuzzleCount: 2
-  maxPuzzleCount: 1
+  maxPuzzleCount: 5
   minRoomSize: {x: 3, y: 3}
   playSpace: {x: 4, y: 6}
   genericModule: {fileID: 11400000, guid: cba85a4318ad4750860b84245d9685c4, type: 2}