1 files changed, 20 insertions, 4 deletions
diff --git a/src/core/item.h b/src/core/item.h
index 9c17dc9..e4e8507 100644
--- a/src/core/item.h
+++ b/src/core/item.h
@@ -39,24 +39,40 @@ public:
 	inline const long price() const {
 		return item_price;
 	}
+	
+	inline const unsigned long timestamp() const {
+		return item_timestamp;
+	}
 	  
 	/* ---- mutators ----------------------------------------------- */
 
 	/**
 	 * @brief set associated amount
 	 */
-	 void set_amount(const long amount);
+	void set_amount(const long amount);
+	 
+	void inc_amount(const long amount);
+	 
+	void dec_amount(const long amount);
 	 
-	 void inc_amount(const long amount);
+	void set_price(const long price);
 	 
-	 void dec_amount(const long amount);
+	void set_dirty();
+	
+	/* ---- serializers -------------------------------------------- */
 	 
-	 void set_price(const long price);
+	void serialize_server_update(std::ostream & os) const;
+
+	void receive_server_update(std::istream &is);
 	
 private:
+	void set_timestamp(const unsigned long timestamp);
+	
 	const Info		*item_info;
 	long			item_price;
 	long 			item_amount;
+	
+	unsigned long		item_timestamp;
 };
 
 } // namespace core