1 files changed, 21 insertions, 2 deletions

diff --git a/src/core/inventory.h b/src/core/inventory.h
index c924683..c715116 100644
--- a/src/core/inventory.h
+++ b/src/core/inventory.h
@@ -55,12 +55,31 @@ public:
 	  */
 	 Item *find(const Info *info);
 	 
-	 inline Items &items() {
+	inline Items &items() {
 		 return inventory_items;
 	};
+
+	/**
+	 * @brief return the timestamp
+	 */
+	inline const unsigned long timestamp() const {
+		return inventory_timestamp;
+	}
+	
+	/**
+	 * @brief set the timestamp
+	 */
+	 void set_timestamp(const unsigned long timestamp);
+	 
+	/**
+	 * @brief set the timestamp to the current game time
+	 */	 
+	 void mark();
 	 
 private:
-	Items						inventory_items;
+	Items			inventory_items;
+	// timestamp when inventory was last updated
+	unsigned long 		inventory_timestamp;
 };
 
 } // namsepace core