Add dirty attribute on Mug

Assets/Prefabs/Characters/Tavernkeeper.prefab

@@ -165,4 +165,5 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: 5222b6d867fe67f4a973336825e0ee8c, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
-  speed: 5
+  mvt_speed: 5
+  action_dist: 1.5

Assets/Scripts/Mug.cs

@@ -7,7 +7,7 @@ using UnityEngine;
 public class Mug : MonoBehaviour, IGrabable
 {
     public int size = 1; //Size (1 or 2 hands) of the object
-    // bool dirty = false;
+    public bool dirty = false;
     public Consumable content= null; //new Consumable("beer",1,null);
 
     public void use()
@@ -38,6 +38,7 @@ public class Mug : MonoBehaviour, IGrabable
     public void consume() //Empty Mug of its Consumable
     {
         content=null;
+        dirty = true; //Used and dirty
     }
 
     // Start is called before the first frame update

Assets/Scripts/Workshop.cs

@@ -10,7 +10,9 @@ public class Workshop : MonoBehaviour
     public int product_value;
     public Sprite product_sprite;
     public float prepTime = 2.0f; //Time for preparation of product
-    protected int _stock = 5; //Stock of prodcut
+    protected int _stock = 5; //Stock of product
+
+    GameObject currentMug = null; //Mug currently stocked in workshop
 
     //Handle objects interactions w/ Workshop
     //Return wether the object is taken from tavernkeeper
@@ -19,7 +21,7 @@ public class Workshop : MonoBehaviour
         if(object_used != null && object_used.tag=="Mug")
         {
             Mug mug = object_used.GetComponent<Mug>();
-            if (mug!= null && mug.content is null && _stock>0)
+            if (mug!= null && mug.content is null && !mug.dirty && _stock>0) //Mug clean & empty + remaining stock in workshop
             {
                 Debug.Log(gameObject.name+" fill "+object_used.name+ " with "+product_name);
                 mug.fill(new Consumable(product_name,product_value,product_sprite));