feat(editor): a deleted track leaves its signal reads and its track circuit to the track laid in its place, and the SRK check lists the signals no track reads and the broken lines, with a Repair

A deleted track whose read events or track circuit no other track took says so by the cursor, naming the signals and the circuits, and the editor keeps them for the track laid in its place, within a metre of its axis. The read of each signal goes to the piece by the signal, on the list its facing there gives, so a track laid the other way round keeps the trains reading it; the other events go to the piece at its middle, the circuit to a track lying there for the most part, a new track taking it instead of the one of the track it was made from. It happens in the step which lays the track, so Ctrl+Z takes it back and laying it again gets them again; a track which took a circuit over and is removed by another step leaves it to that step, and the events of a signal taken away stay off the tracks.

The SRK panel of a station lists what it and its lines need: signals no track reads, lines broken off where the tracks go on beyond a gap, tracks of a line of the automatic block in no block section, block sections whose tracks are gone. A row shows the place; Repair has the track by each signal read it again, as moving it does, and sets the line signals again where tracks are in no block section. A warning after an operation shows by the cursor in amber, a refusal in red as before. srkcheck counts these too, srkfix repairs, join takes the height of the ends for sceneries far above zero.

application/editormodesrk.h

@@ -226,6 +226,7 @@ class srk_tool final : public editor_tool
 			double km_to{0.0};
 		};
 		std::vector<run> sections; // the track circuits along it, out from the station
+		std::vector<std::pair<double, double>> bare; // out along it, tracks between its block sections in none, of the automatic block
 		struct post
 		{
 			double distance{0.0}; // out along the line
@@ -244,6 +245,16 @@ class srk_tool final : public editor_tool
 	std::vector<station::line> m_line_ways; // of the lines listed
 	std::unordered_set<std::string> m_signal_names; // of the signals of the scenery, lowercase: a block signal drawn on one's number takes a letter
 	std::string m_lines_problem; // why the station has no lines listed
+	// what the check of the open station finds wrong: signals no track reads, lines broken off, tracks between the block sections of
+	// a line in none, block sections without a track
+	struct problem
+	{
+		std::string text;
+		glm::dvec3 at{0.0};
+		scene::instance_handle signal{0}; // Repair has a track read it again
+		bool lines{false}; // Repair sets the line signals again
+	};
+	std::vector<problem> m_problems;
 	bool m_drawing{false}; // the block boundaries drawn by hand
 	// a block boundary under the mouse while they are drawn: block signals across the line there, or the ones standing taken away
 	struct boundary
@@ -334,6 +345,11 @@ class srk_tool final : public editor_tool
 	// the lines out of the open station, for the panel
 	void survey_lines(std::vector<standing_signal> const &Standing);
 	void render_lines();
+	void survey_problems(std::vector<standing_signal> const &Standing);
+	void render_problems();
+	// the signals no track reads read by the tracks they stand by, the lines with tracks in no block section set again; a step of
+	// the history each
+	void fix_problems();
 	// the SHP track resonators placed where the signals checked need them and have none: 200 m before an entry signal, a block
 	// signal and a warning disc, at an exit signal onto a line of the automatic block, the track cut where none of its joints lies
 	// within 5 m, its event put on the track the trains run into there; one step of the history