Lines are now communicated to uberclient

src/app.h

@@ -22,6 +22,7 @@ struct App{
 	int lineuid{0};
 
 	struct OfflineSim {
+		std::vector<cheap_line_type> lines_to_add;
 		std::vector<cheap_line_type> lines;
 		std::vector<cheap_ball_type> balls;
 	} offline_sim;
@@ -42,13 +43,14 @@ struct App{
 
 	void add_line(cheap_line_type const & line){
 		if(uberclient){
-			// write
+			offline_sim.lines_to_add.push_back(line);
 		} else {
 			add_line(AbstractLine{
 				to_FloatVec2(line.starting_point),
 				to_FloatVec2(line.end_point),
 				line.line_kind});
 		}
+		lines_changed();
 	}
 
 	void add_line(AbstractLine const & line){
@@ -56,6 +58,9 @@ struct App{
 		for(auto & l : line.calculate_lines()){
 			online_sim.sim.lines.push_back(l);
 		}
+	}
+
+	void lines_changed() {
 		for(auto & u : people_online){
 			u->update_lines = true;
 		}
@@ -88,6 +93,8 @@ struct App{
 		online_sim.lines.clear();
 		online_sim.sim.lines.clear();
 		online_sim.sim.balls.clear();
+
+		lines_changed();
 	}
 
 	void uberclient_disconnected(basic_websocket_info binfo){

src/main.cpp

@@ -80,11 +80,14 @@ websockets::TestProtocol<Empty> uberclient_protocol{
 	},
 	// write (will always come after receive)
 	[](Empty& user, basic_websocket_info) -> std::string{
-		static int i = 0;
+		if(app->offline_sim.lines_to_add.empty()) return "";
-		return std::to_string(i++);
+		auto it = app->offline_sim.lines_to_add.begin();
+		auto str = write_json(to_json(*it));
+		app->offline_sim.lines_to_add.erase(it);
+		return str;
 	},
 	// receive
-	[](Empty& user, std::string in, basic_websocket_info){
+	[](Empty& user, std::string in, basic_websocket_info binfo){
 		auto object = parse_json(in).getObject();
 		if(object.count("lines")){
 			app->offline_sim.lines.clear();
@@ -92,6 +95,7 @@ websockets::TestProtocol<Empty> uberclient_protocol{
 			for(auto&& js : lines.getArray()){
 				app->offline_sim.lines.push_back(from_json<cheap_line_type>(js));
 			}
+			app->lines_changed();
 		}
 		if(object.count("balls")){
 			app->offline_sim.balls.clear();
@@ -100,6 +104,10 @@ websockets::TestProtocol<Empty> uberclient_protocol{
 				app->offline_sim.balls.push_back(from_json<cheap_ball_type>(js));
 			}
 		}
+
+		if(!app->offline_sim.lines_to_add.empty()){
+			request_write(binfo);
+		}
 	}
 };
 

src/websockets.h

@@ -87,7 +87,7 @@ namespace websockets {
 		}
 		virtual int call(libwebsocket_context& context, libwebsocket& wsi, libwebsocket_callback_reasons reason, T& user, void *in, size_t len){
 			return 0;
-		};
+		}
 	};
 
 	struct basic_websocket_info{