add: half baked

engine/schema/beacon.fbs

@@ -0,0 +1,53 @@
+namespace mmo.beacon;
+
+enum Verb:byte {
+    Join = 0,
+    Leave,
+    List
+}
+
+union Request {
+    JoinRequest,
+    LeaveRequest,
+    ListRequest
+}
+
+table Call {
+    request:Request;
+}
+
+table JoinRequest {
+    uid:string (required);
+    contact:string (required);
+    clock:long;
+}
+
+table LeaveRequest {
+    uid:string (required);
+}
+
+table ListRequest {}
+
+union Response {
+    JoinResponse,
+    LeaveResponse,
+    ListResponse
+}
+
+table CallResp {
+    response:Response;
+}
+
+table JoinResponse {}
+
+table LeaveResponse {}
+
+table ListResponse {
+    entities:[Entity];
+}
+
+table Entity {
+    uid:string (required);
+    // vector clock representing the state of this thing
+    clock:long;
+}