requirements foundation

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

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+using System.Collections.Generic;
+using Escape_Room_Engine.Engine.Scripts.Modules;
+using UnityEngine;
+
+namespace Escape_Room_Engine.Engine.Scripts.Requirements
+{
+    [CreateAssetMenu(menuName = "Requirements/Place Along Space Edges")]
+    public class PlaceAlongSpaceEdges : PlacementRequirement
+    {
+        public override HashSet<Vector2Int> PlacementCandidates(Module module, Space space)
+        {
+            var edgePositions = new HashSet<Vector2Int>();
+            
+            for (var x = 0; x < space.rrDimensions.width; x++)
+            {
+                edgePositions.Add(new Vector2Int(x, 0));
+                edgePositions.Add(new Vector2Int(x, space.rrDimensions.length));
+            }
+            for (var z = 0; z < space.rrDimensions.length; z++)
+            {
+                edgePositions.Add(new Vector2Int(0, z));
+                edgePositions.Add(new Vector2Int(space.rrDimensions.width, z));
+            }
+
+            return edgePositions;
+        }
+    }
+}