Index: common/Message.h
===================================================================
--- common/Message.h	(revision 46fa35a62917af23ef297a400a269cae1ec85a80)
+++ common/Message.h	(revision 4b4b15388441a80b24a21851a46d630f3b670e20)
@@ -13,4 +13,6 @@
 #define MSG_TYPE_DROP_FLAG     10
 #define MSG_TYPE_SCORE         11
+#define MSG_TYPE_START_ATTACK  12
+#define MSG_TYPE_ATTACK        13
 
 typedef struct