worked on lines saving

src/modules/stream/from_string.h

@@ -18,4 +18,10 @@ template <class T> static inline T from_string(const String &s)
 	ret = o;
 	return ret;
 }
+template <class T> static inline String to_string(const T &v)
+{
+	String tmp;
+	VariantWriter::write_to_string(v, tmp);
+	return tmp;
+}
 #endif

src/modules/stream/road_lines_editor.cpp

@@ -22,6 +22,7 @@ struct road_line {
 	int lanes;
 	int pattern;
 	int flags;
+	Dictionary metadata;
 };
 static HashMap<String, struct road_line> lines;
 static ImmediateGeometry *line_im = nullptr;
@@ -281,13 +282,14 @@ protected:
 			/* TODO: delete line */
 			break;
 		case 51:
-			/* TODO: point to cursor */
 			editor->set_point_to_cursor();
 			break;
 		case 52:
-			/* TODO: cursor to point */
 			editor->move_cursor_to_point();
 			break;
+		case 101:
+			editor->save_data();
+			break;
 		default:
 			print_line("menu option pressed: " + itos(id));
 		}
@@ -772,9 +774,8 @@ void RoadLinesEditor::load_data()
 		struct road_line rline;
 		Dictionary entry = json.get(key, Dictionary());
 		Array points = entry.get("points", Array());
-		Array indices;
-		if (entry.has("indices"))
-			indices = entry.get("indices", Array());
+		Array indices = entry.get("indices", Array());
+		rline.metadata = entry.get("metadata", Dictionary());
 		int lanes = entry.get("lanes", -1);
 		int pattern = entry.get("pattern", -1);
 		rline.pattern = pattern;
@@ -794,6 +795,46 @@ void RoadLinesEditor::load_data()
 		e = e->next();
 	}
 }
+void RoadLinesEditor::save_data()
+{
+	// TODO: implement
+	int i;
+	ConfigFile config;
+	Error result = config.load("res://config/stream.conf");
+	ERR_FAIL_COND_MSG(result != OK, "Failed to load config");
+	String road_lines_path = config.get_value("road", "road_lines_path");
+	String road_lines_json =
+		FileAccess::get_file_as_string(road_lines_path);
+	Dictionary output;
+	List<String> keys;
+	lines.get_key_list(&keys);
+	List<String>::Element *e = keys.front();
+	while (e) {
+		Dictionary pvalues;
+		Array points, indices;
+		points.resize(lines[e->get()].points.size());
+		for (i = 0; i < (int)lines[e->get()].points.size(); i++)
+			points[i] = to_string(lines[e->get()].points[i]);
+		indices.resize(lines[e->get()].indices.size());
+		for (i = 0; i < (int)lines[e->get()].indices.size(); i++)
+			indices[i] = lines[e->get()].indices[i];
+		pvalues["points"] = points;
+		pvalues["indices"] = indices;
+		pvalues["metadata"] = lines[e->get()].metadata;
+		pvalues["lanes"] = lines[e->get()].lanes;
+		pvalues["pattern"] = lines[e->get()].pattern;
+		output[e->get()] = pvalues;
+		e = e->next();
+	}
+	print_line(JSON::print(output, "\t", false));
+	Error err;
+	FileAccess *fd = FileAccess::open(road_lines_path + ".n",
+					  FileAccess::WRITE, &err);
+	if (err == OK) {
+		fd->store_string(JSON::print(output, "\t", false));
+		fd->close();
+	}
+}
 template <class T> T *RoadLinesEditor::get_as_node(const String &path)
 {
 	Node *node = scene()->get_node(NodePath(path));

src/modules/stream/road_lines_editor.h

@@ -38,6 +38,7 @@ public:
 	void set_line_index(int index);
 	void line_list_filter_changed(const String &text);
 	template <class T> T *get_as_node(const String &path);
+	void save_data();
 
 protected:
 	void activate();