comment pass

Assets/Engine/Runtime/Placement.cs

@@ -5,6 +5,9 @@ using Range = EscapeRoomEngine.Engine.Runtime.Utilities.Range;
 
 namespace EscapeRoomEngine.Engine.Runtime
 {
+    /// <summary>
+    /// A placement defines the position, size and orientation of a module or space.
+    /// </summary>
     public struct Placement
     {
         /// <summary>
@@ -16,6 +19,9 @@ namespace EscapeRoomEngine.Engine.Runtime
         public Vector2Int size;
         public Orientation orientation;
         
+        /// <summary>
+        /// Return the bottom left corner position of the module.
+        /// </summary>
         public Vector3Int BottomLeft {
             get
             {