puzzle flow

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

@@ -1,12 +1,57 @@
-using UnityEngine;
+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 enum PuzzleEventType
+    {
+        Reset, Solved
+    }
+    
+    public delegate void PuzzleEventHandler(PuzzleModule source, PuzzleEventType e);
+    
     public class PuzzleModule : Module
     {
+        internal event PuzzleEventHandler PuzzleEvent;
+
+        internal bool Solved
+        {
+            get => _solved;
+            private set
+            {
+                var type =
+                    !_solved && value ? Some<PuzzleEventType>.Of(PuzzleEventType.Solved)
+                    : _solved && value ? Some<PuzzleEventType>.Of(PuzzleEventType.Reset)
+                    : None<PuzzleEventType>.New();
+                _solved = value;
+                type.Match(some: OnPuzzleEvent);
+            }
+        }
+        
+        private bool _solved;
+        
         internal PuzzleModule(Space space, PuzzleModuleDescription description) : base(space, description)
         {
             srDimensions.Size = Vector2Int.one; // TODO: larger modules
         }
+
+        protected virtual void OnPuzzleEvent(PuzzleEventType type)
+        {
+            Logger.Log($"{this} has been {type}", LogType.PuzzleFlow);
+            
+            PuzzleEvent?.Invoke(this, type);
+        }
+
+        public void Solve()
+        {
+            Solved = true;
+        }
+
+        public override string ToString()
+        {
+            return $"Puzzle module ({(Solved ? "" : "not ")}solved)";
+        }
     }
 }