refactor(editor): the self-test commands in a file per group instead of one file of 4200 lines

editormodeselftest.cpp keeps the dispatch, the list of the commands and the step; the groups go to
editormodeselftest{scene,sleepers,sweep,track,switch,join,signal,terrain,rails}.cpp, the sleeper commands (beams,
sharedzones, sleepersbg, beamsnear, sleepercheck) in a group of their own; the frame count and one_line shared through
editormodeselftest.h. The output of geomhash, sleepercheck, wings, space, guards, crossings and switches is the same on the
seven sceneries of the regression.

CMakeLists.txt

@@ -230,6 +230,15 @@ set(SOURCES
 "application/editormodesweep.cpp"
 "application/editormodeturntable.cpp"
 "application/editormodeselftest.cpp"
+"application/editormodeselftestscene.cpp"
+"application/editormodeselftestsleepers.cpp"
+"application/editormodeselftestsweep.cpp"
+"application/editormodeselftesttrack.cpp"
+"application/editormodeselftestswitch.cpp"
+"application/editormodeselftestjoin.cpp"
+"application/editormodeselftestsignal.cpp"
+"application/editormodeselftestterrain.cpp"
+"application/editormodeselftestrails.cpp"
 "application/scriptedinput.cpp"
 "input/editormouseinput.cpp"
 "application/editoruilayer.cpp"

application/editormode.h

@@ -2052,6 +2052,7 @@ class editor_mode : public application_mode, private editor_track::observer
 		pause
 	};
 	selftest_result selftest_scene(std::string const &command, std::istringstream &words);
+	selftest_result selftest_sleepers(std::string const &command, std::istringstream &words);
 	selftest_result selftest_sweep(std::string const &command, std::istringstream &words);
 	selftest_result selftest_track(std::string const &command, std::istringstream &words);
 	selftest_result selftest_switch(std::string const &command, std::istringstream &words);

application/editormodeselftest.h

@@ -0,0 +1,33 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#pragma once
+
+#include <algorithm>
+#include <cstddef>
+#include <string>
+
+// what the groups of the self-test commands share, each group in a file of its own
+namespace editor_selftest
+{
+
+// frames gone through the selftest, for the measurements of perf
+inline std::size_t &frames()
+{
+	static std::size_t count{0};
+	return count;
+}
+
+inline std::string one_line(std::string Text)
+{
+	std::replace(Text.begin(), Text.end(), '\n', ';');
+	return Text;
+}
+
+} // namespace editor_selftest

application/editormodeselftestjoin.cpp

@@ -0,0 +1,398 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_join(std::string const &command, std::istringstream &words)
+{
+	if (command == "join" || command == "layto")
+	{
+		glm::dvec3 a{0.0};
+		glm::dvec3 b{0.0};
+		words >> a.x >> a.z >> b.x >> b.z;
+		auto const from{editor_track::find_free_end(nullptr, 1, a, 3.0, {})};
+		extend_tool tool;
+		if (from.track == nullptr || false == free_end(*from.track, from.point.path, from.point.kind == editor_track::point_kind::end, tool))
+		{
+			WriteLog("SELFTEST " + command + ": no free end at the first point");
+			return selftest_result::handled;
+		}
+		std::vector<segment_data> pieces;
+		std::string error;
+		double length{0.0};
+		if (command == "join")
+		{
+			double radius{0.0};
+			int variant{0};
+			int transitions{0};
+			words >> radius >> variant >> transitions;
+			auto const to{editor_track::find_free_end(nullptr, 1, b, 3.0, {from.track})};
+			if (to.track == nullptr)
+			{
+				WriteLog("SELFTEST join: no free end at the second point");
+				return selftest_result::handled;
+			}
+			m_join_radius = radius;
+			m_join_variant = variant;
+			m_lay.transitions = transitions != 0;
+			pieces = join_pieces(tool.track, from.point, tool.point, tool.direction, to, length, error);
+		}
+		else
+		{
+			int layout{0};
+			words >> layout >> m_lay.radius;
+			m_track_layout = static_cast<track_layout>(std::clamp(layout, 0, 3));
+			m_extend = tool;
+			m_extend.active = true;
+			m_extend.mouse = {b.x, tool.point.y, b.z};
+			m_extend.snap = {};
+			pieces = extend_pieces();
+			m_extend.active = false;
+		}
+		std::vector<TTrack *> created;
+		for (auto const &piece : pieces)
+			created.push_back(editor_track::create_path(*tool.track, piece));
+		editor_track::commit(created);
+		digitize_drawn(created);
+		if (false == created.empty())
+			push_track_snapshot({}, created);
+		char const *const kinds[]{"none", "straight", "arc", "curve", "reverse curve", "free curve"};
+		auto const &join{m_join_last};
+		WriteLog(format("SELFTEST %s: %s, %zu paths, R %.1f m, cant %.0f mm, transitions %.1f m, V %.0f km/h, variants %d%s", command.c_str(), kinds[static_cast<int>(join.kind)], pieces.size(), join.radius, join.cant,
+		                join.transition, join.speed, join.variants, error.empty() ? "" : (", " + error).c_str()));
+		auto heading{tool.direction};
+		glm::dvec3 previous{tool.point};
+		for (auto const *track : created)
+		{
+			auto const &path{track->m_paths.front()};
+			geometry::bezier const curve{path};
+			auto const begin{glm::normalize(geometry::plan_of(curve.first(0.0)))};
+			auto const finish{glm::normalize(geometry::plan_of(curve.first(1.0)))};
+			WriteLog(format("SELFTEST %s path %s: L %.2f m, R %.1f m, rolls %.2f %.2f, kink %.4f deg, step %.4f m", command.c_str(), track->name().c_str(), curve.plan_length(), static_cast<double>(path.radius),
+			                static_cast<double>(path.rolls[0]), static_cast<double>(path.rolls[1]), glm::degrees(std::abs(geometry::signed_angle(heading, begin))), glm::distance(previous, path.points[segment_data::point::start])));
+			heading = finish;
+			previous = path.points[segment_data::point::end];
+		}
+		if (false == created.empty())
+			WriteLog(format("SELFTEST %s end: %.3f m from the target", command.c_str(), geometry::plan_distance(previous, b)));
+		return selftest_result::handled;
+	}
+	if (command == "tracktab")
+	{
+		std::string key;
+		words >> key;
+		for (auto const &mode : track_modes())
+			if (key == mode.key)
+				show_track_tab(mode.tab);
+		WriteLog(format("SELFTEST tracktab %s: %s", key.c_str(), track_mode_name().c_str()));
+		return selftest_result::handled;
+	}
+	if (command == "laychain")
+	{
+		int layout{0};
+		words >> layout >> m_lay.radius;
+		m_track_layout = static_cast<track_layout>(std::clamp(layout, 0, 3));
+		m_lay.active = true;
+		lay_cancel();
+		auto const report = [&](std::string const &Step) {
+			auto const *start{m_lay.start.track};
+			WriteLog(format("SELFTEST laychain %s: chain %zu, points %zu, start %s%s at %.2f %.2f, history %zu, status %s", Step.c_str(), m_lay.chain.size(), m_lay.points.size(), start != nullptr ? start->name().c_str() : "-", start != nullptr && start->m_editorremoved ? " (removed)" : "",
+			                m_lay.points.empty() ? 0.0 : m_lay.points.front().x, m_lay.points.empty() ? 0.0 : m_lay.points.front().z, m_history.size(), m_lay.status.c_str()));
+		};
+		for (std::string word; words >> word;)
+		{
+			if (word == "b")
+				lay_back();
+			else if (word == "u")
+				undo_last();
+			else if (word == "r")
+				redo_last();
+			else
+			{
+				glm::dvec3 point{std::strtod(word.c_str(), nullptr), 5000.0, 0.0};
+				words >> point.z;
+				std::vector<char> found;
+				auto const ground{ground_heights({point}, true, &found)};
+				point.y = found[0] != 0 ? ground[0] : m_lay.points.empty() ? 0.0 : m_lay.points.back().y;
+				m_lay.mouse_snap = editor_track::find_free_end(nullptr, 1, point, 3.0, {});
+				m_lay.mouse = m_lay.mouse_snap.track != nullptr ? point : lay_bed(point);
+				lay_click();
+				word += format(" %.1f", point.z);
+			}
+			report(word);
+		}
+		lay_cancel();
+		return selftest_result::handled;
+	}
+	if (command == "layclicks")
+	{
+		int layout{0};
+		words >> layout >> m_lay.radius;
+		m_track_layout = static_cast<track_layout>(std::clamp(layout, 0, 3));
+		auto const active{m_lay.active};
+		m_lay.active = true;
+		lay_cancel();
+		auto const before{m_history.size()};
+		for (glm::dvec3 point{0.0}; words >> point.x >> point.z;)
+		{
+			point.y = 5000.0;
+			std::vector<char> found;
+			auto const ground{ground_heights({point}, true, &found)};
+			point.y = found[0] != 0 ? ground[0] : m_lay.points.empty() ? 0.0 : m_lay.points.back().y;
+			m_lay.mouse_snap = editor_track::find_free_end(nullptr, 1, point, 3.0, {});
+			m_lay.mouse = m_lay.mouse_snap.track != nullptr ? point : lay_bed(point);
+			WriteLog(format("SELFTEST layclicks ground %.3f, track %.3f", point.y, m_lay.mouse.y));
+			lay_click();
+			WriteLog(format("SELFTEST layclicks %.1f %.1f: %s", point.x, point.z, m_lay.status.c_str()));
+		}
+		lay_cancel();
+		m_lay.active = active;
+		glm::dvec2 heading{0.0};
+		glm::dvec3 previous{0.0};
+		double slope{0.0};
+		bool first{true};
+		double hanging{0.0};
+		double buried{0.0};
+		int paths{0};
+		for (auto step{before}; step < m_history.size(); ++step)
+			for (auto const *track : m_history[step].created)
+			{
+				auto const &path{track->m_paths.front()};
+				geometry::bezier const curve{path};
+				auto const begin{glm::normalize(geometry::plan_of(curve.first(0.0)))};
+				auto const &a{path.points[segment_data::point::start]};
+				auto const &b{path.points[segment_data::point::end]};
+				auto const rise = [](glm::dvec3 const &Tangent) { return Tangent.y / std::max(1e-9, glm::length(geometry::plan_of(Tangent))); };
+				WriteLog(format("SELFTEST layclicks path %s: %.2f %.2f -> %.2f %.2f, L %.2f m, R %.1f m, kink %.4f deg, step %.4f m, y %.3f -> %.3f, grade %.2f -> %.2f permille, grade break %.3f permille", track->name().c_str(), a.x, a.z, b.x, b.z, curve.plan_length(), static_cast<double>(path.radius),
+				                first ? 0.0 : glm::degrees(std::abs(geometry::signed_angle(heading, begin))), first ? 0.0 : glm::distance(previous, a), a.y, b.y, 1000.0 * rise(curve.first(0.0)), 1000.0 * rise(curve.first(1.0)),
+				                first ? 0.0 : 1000.0 * std::abs(rise(curve.first(0.0)) - slope)));
+				slope = rise(curve.first(1.0));
+				heading = glm::normalize(geometry::plan_of(curve.first(1.0)));
+				previous = b;
+				first = false;
+				auto const count{std::max(1, static_cast<int>(std::ceil(curve.plan_length() / 2.0)))};
+				for (int k = 0; k <= count; ++k)
+				{
+					auto const t{curve.parameter(curve.plan_length() * k / count)};
+					auto const target{bed_heights({curve.point(t) + glm::dvec3{0.0, 50.0, 0.0}}, {geometry::plan_of(curve.first(t))}, track).front()};
+					if (std::isnan(target))
+						continue;
+					hanging = std::max(hanging, curve.point(t).y - target);
+					buried = std::max(buried, target - curve.point(t).y);
+				}
+				++paths;
+			}
+		WriteLog(format("SELFTEST layclicks %d paths, ballast foot over the ground up to %.3f m, under it up to %.3f m", paths, hanging, buried));
+		return selftest_result::handled;
+	}
+	if (command == "joints")
+	{
+		std::vector<glm::dvec3> points;
+		for (glm::dvec3 point{0.0}; words >> point.x >> point.z;)
+			points.push_back(point);
+		auto const scope{m_joints.scope};
+		m_joints.scope = 1;
+		joints_start();
+		while (m_joints.next < m_joints.queue.size())
+			joints_step();
+		m_joints.scope = scope;
+		char const *const kinds[]{"gap", "step", "kink", "cant jump", "grade break", "free end"};
+		int around{0};
+		for (auto const &issue : m_joints.issues)
+		{
+			if (false == points.empty() && issue.type == joint_issue::kind::open)
+				continue;
+			if (false == points.empty() && std::none_of(points.begin(), points.end(), [&](glm::dvec3 const &Point) { return geometry::plan_distance(Point, issue.position) < 5.0; }))
+				continue;
+			++around;
+			WriteLog(format("SELFTEST joints: %s %.3f at %.1f %.1f, %s / %s", kinds[static_cast<int>(issue.type)], issue.value, issue.position.x, issue.position.z, issue.track != nullptr ? issue.track->name().c_str() : "-",
+			                issue.other != nullptr ? issue.other->name().c_str() : "-"));
+		}
+		WriteLog(format("SELFTEST joints: %d issues around the points, %zu in all", around, m_joints.issues.size()));
+		return selftest_result::handled;
+	}
+	if (command == "gizmo")
+	{
+		std::string action;
+		words >> action;
+		auto *track{selected_track()};
+		if (track == nullptr)
+		{
+			WriteLog("SELFTEST gizmo: nothing selected");
+			return selftest_result::handled;
+		}
+		if (action == "set")
+		{
+			m_track_set.clear();
+			for (std::string name; words >> name;)
+				if (auto *each{simulation::Paths.find(name)}; each != nullptr)
+					m_track_set.push_back(each);
+			m_track_set_pivot = track_set_centre();
+			WriteLog(format("SELFTEST gizmo set: %zu tracks, centre %.3f %.3f", m_track_set.size(), m_track_set_pivot.x, m_track_set_pivot.z));
+		}
+		else if (action == "setturn")
+		{
+			double degrees{0.0};
+			words >> degrees;
+			if (track_set_begin(true))
+			{
+				track_set_turn(glm::radians(degrees));
+				track_set_end();
+			}
+		}
+		else if (action == "op")
+		{
+			std::string operation;
+			words >> operation;
+			choose_work_area(work_area::tracks);
+			m_gizmo_op = operation == "rotate" ? gizmo_operation::rotate : operation == "scale" ? gizmo_operation::scale : gizmo_operation::translate;
+			int path{-1};
+			std::string kind;
+			words >> path >> kind;
+			m_track_point = {};
+			if (path >= 0)
+				m_track_point = {path, kind == "c1" ? editor_track::point_kind::control1 : kind == "c2" ? editor_track::point_kind::control2 : kind == "end" ? editor_track::point_kind::end : editor_track::point_kind::start};
+		}
+		else if (action == "begin")
+		{
+			std::string operation;
+			std::string kind;
+			int path{-1};
+			words >> operation >> path >> kind;
+			m_track_point = {};
+			if (path >= 0)
+				m_track_point = {path, kind == "c1" ? editor_track::point_kind::control1 : kind == "c2" ? editor_track::point_kind::control2 : kind == "end" ? editor_track::point_kind::end : editor_track::point_kind::start};
+			auto const wanted{operation == "rotate" ? gizmo_operation::rotate : operation == "scale" ? gizmo_operation::scale : gizmo_operation::translate};
+			auto const previous{m_gizmo_op};
+			m_gizmo_op = wanted;
+			auto const chosen{track_gizmo_operation(*track, m_track_point.valid())};
+			m_gizmo_op = previous;
+			track_gizmo_begin(*track, m_track_point.valid(), chosen);
+			WriteLog(format("SELFTEST gizmo begin %s: %s, %zu tracks dragged, %zu joints, %zu partners%s", operation.c_str(), chosen == gizmo_operation::rotate ? "rotate" : chosen == gizmo_operation::scale ? "scale" : "translate", m_track_drag.size(), m_track_joints.size(),
+			                m_track_gizmo_drag.partners.size(), m_track_gizmo_drag.fixed != glm::dvec3{} ? ", fixed direction" : ""));
+		}
+		else if (action == "turn")
+		{
+			double degrees{0.0};
+			std::string axis{"y"};
+			words >> degrees >> axis;
+			m_track_gizmo_drag.ring = axis == "x" ? 0 : axis == "z" ? 2 : 1;
+			track_gizmo_turn(*track, m_track_gizmo_drag.ring, glm::radians(degrees));
+			track_gizmo_switches(*track);
+			WriteLog(format("SELFTEST gizmo turn %s: %s", axis.c_str(), track_readout().c_str()));
+		}
+		else if (action == "length")
+		{
+			double length{0.0};
+			words >> length;
+			track_gizmo_length(*track, length);
+			track_gizmo_switches(*track);
+			WriteLog(format("SELFTEST gizmo length %.3f of %.3f, %zu pieces", m_track_gizmo_drag.stretch, m_track_gizmo_drag.length, m_track_gizmo_drag.pieces));
+		}
+		else if (action == "control")
+		{
+			glm::dvec3 control{0.0};
+			words >> control.x >> control.y >> control.z;
+			track_gizmo_control(*track, control);
+			track_gizmo_switches(*track);
+		}
+		else if (action == "offset")
+		{
+			glm::dvec3 offset{0.0};
+			words >> offset.x >> offset.y >> offset.z;
+			if (m_track_point.valid())
+			{
+				track_gizmo_point(*track, editor_track::point_position(*track, m_track_point) + offset);
+			}
+			else
+			{
+				editor_track::translate(*track, offset);
+				editor_track::follow(*track, m_track_joints);
+			}
+			track_gizmo_switches(*track);
+			m_track_dirty = true;
+		}
+		else if (action == "end")
+			track_gizmo_end(*track);
+		else if (action == "show")
+		{
+			std::vector<TTrack *> shown{track};
+			for (auto *neighbour : editor_track::neighbours(*track))
+				shown.push_back(neighbour);
+			WriteLog(format("SELFTEST gizmo %s prev %s next %s", track->name().c_str(), track->trPrev != nullptr ? track->trPrev->name().c_str() : "-", track->trNext != nullptr ? track->trNext->name().c_str() : "-"));
+			for (auto *each : shown)
+				for (int i = 0; i < static_cast<int>(each->m_paths.size()); ++i)
+				{
+					auto const &path{each->m_paths[i]};
+					auto const &a{path.points[segment_data::point::start]};
+					auto const &b{path.points[segment_data::point::end]};
+					auto const &c1{path.points[segment_data::point::control1]};
+					auto const &c2{path.points[segment_data::point::control2]};
+					WriteLog(format("SELFTEST gizmo path %s[%d] %.3f %.3f %.3f -> %.3f %.3f %.3f, c1 %.3f %.3f %.3f, c2 %.3f %.3f %.3f, L %.3f, R %.1f, rolls %.2f %.2f", each->name().c_str(), i, a.x, a.y, a.z, b.x, b.y, b.z, c1.x, c1.y, c1.z, c2.x, c2.y, c2.z,
+					                geometry::bezier{path}.plan_length(), path.radius, path.rolls[0], path.rolls[1]));
+				}
+			for (int i = 0; i < static_cast<int>(track->m_paths.size()); ++i)
+				for (auto const kind : {editor_track::point_kind::start, editor_track::point_kind::end})
+				{
+					geometry::bezier const own{track->m_paths[i]};
+					bool const start{kind == editor_track::point_kind::start};
+					auto const out{start ? -own.first(0.0) : own.first(1.0)};
+					for (auto const &partner : editor_track::partners(*track, {i, kind}))
+					{
+						geometry::bezier const theirs{partner.first->m_paths[partner.second.path]};
+						auto const in{partner.second.kind == editor_track::point_kind::start ? theirs.first(0.0) : -theirs.first(1.0)};
+						auto const angle{glm::degrees(std::acos(std::clamp(glm::dot(glm::normalize(out), glm::normalize(in)), -1.0, 1.0)))};
+						auto const gap{glm::distance(editor_track::point_position(*track, {i, kind}), editor_track::point_position(*partner.first, partner.second))};
+						WriteLog(format("SELFTEST gizmo joint %s[%d].%s - %s[%d]: kink %.4f deg, gap %.4f m", track->name().c_str(), i, start ? "start" : "end", partner.first->name().c_str(), partner.second.path, angle, gap));
+					}
+				}
+		}
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftestscene.cpp

@@ -0,0 +1,567 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_scene(std::string const &command, std::istringstream &words)
+{
+	auto &test{m_selftest};
+	if (command == "camera")
+	{
+		glm::dvec3 from;
+		glm::dvec3 to;
+		words >> from.x >> from.y >> from.z >> to.x >> to.y >> to.z;
+		auto const look{glm::normalize(to - from)};
+		Camera.Pos = from;
+		Camera.Angle = glm::vec3(static_cast<float>(std::asin(std::clamp(look.y, -1.0, 1.0))), static_cast<float>(std::atan2(-look.x, -look.z)), 0.0f);
+		Global.pCamera = Camera;
+		m_focus_active = false;
+		return selftest_result::handled;
+	}
+	if (command == "zoom")
+	{
+		float factor{1.0f};
+		words >> factor;
+		Global.ZoomFactor = std::max(factor, 0.01f);
+		return selftest_result::handled;
+	}
+	if (command == "selectat")
+	{
+		glm::dvec3 point{0.0};
+		words >> point.x >> point.z;
+		TTrack *nearest{nullptr};
+		double distance{1e9};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->m_paths.empty())
+				continue;
+			auto const d{geometry::plan_distance(editor_track::point_at(*track, editor_track::nearest_parameter(*track, point)), point)};
+			if (d < distance)
+			{
+				distance = d;
+				nearest = track;
+			}
+		}
+		m_node = distance < 3.0 ? nearest : nullptr;
+		m_track_point = {};
+		ui()->set_node(m_node);
+		WriteLog(format("SELFTEST selectat %.1f %.1f: %s", point.x, point.z, m_node != nullptr ? m_node->name().c_str() : "nothing"));
+		return selftest_result::handled;
+	}
+	if (command == "select")
+	{
+		std::string name;
+		words >> name;
+		m_node = simulation::Paths.find(name);
+		m_track_point = {};
+		ui()->set_node(m_node);
+		WriteLog("SELFTEST select " + name + (m_node != nullptr ? "" : ": no such track"));
+		return selftest_result::handled;
+	}
+	if (command == "perf")
+	{
+		// the frames drawn and the time gone since the last perf, with the timings and the counts the renderer keeps
+		std::string label;
+		words >> label;
+		static auto last{std::chrono::steady_clock::now()};
+		static std::size_t lastframe{0};
+		auto const now{std::chrono::steady_clock::now()};
+		auto const frames{editor_selftest::frames() - lastframe};
+		auto const elapsed{std::chrono::duration<double, std::milli>(now - last).count()};
+		WriteLog(format("SELFTEST perf %s: %zu frames, %.3f ms per frame | %s | %s", label.c_str(), frames, frames > 0 ? elapsed / frames : 0.0, editor_selftest::one_line(GfxRenderer->info_times()).c_str(), editor_selftest::one_line(GfxRenderer->info_stats()).c_str()));
+		last = now;
+		lastframe = editor_selftest::frames();
+		return selftest_result::handled;
+	}
+	if (command == "rebuildall")
+	{
+		// the geometry of every path made anew, as the editor does it after a change, timed
+		auto const start{std::chrono::steady_clock::now()};
+		auto count{0};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved)
+				continue;
+			auto &section{simulation::Region->section(track->location())};
+			if (false == section.m_geometrycreated)
+				continue;
+			track->rebuild_geometry(section.m_geometrybank);
+			++count;
+		}
+		WriteLog(format("SELFTEST rebuildall: %d paths in %.1f ms", count, std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - start).count()));
+		// the sleepers laid again on all the tracks, which the renderer otherwise does as they come in sight, timed by section
+		std::map<scene::basic_section const *, double> sectiontimes;
+		auto laidcount{0};
+		std::size_t parts{0};
+		auto laytime{0.0};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || false == track->m_sleepers3d.active)
+				continue;
+			auto const laystart{std::chrono::steady_clock::now()};
+			track_sleepers::lay(*track);
+			auto const took{std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - laystart).count()};
+			laytime += took;
+			sectiontimes[&simulation::Region->section(track->location())] += took;
+			++laidcount;
+			for (auto const &instances : track->m_sleepers3d.instances)
+				parts += instances.size();
+		}
+		auto slowest{0.0};
+		for (auto const &sectiontime : sectiontimes)
+			slowest = std::max(slowest, sectiontime.second);
+		WriteLog(format("SELFTEST rebuildall sleepers3d: %d tracks laid in %.1f ms, %zu parts; %zu sections, %.2f ms per section, %.2f ms the slowest", laidcount, laytime, parts, sectiontimes.size(),
+		    (sectiontimes.empty() ? 0.0 : laytime / sectiontimes.size()), slowest));
+		return selftest_result::handled;
+	}
+	if (command == "frames")
+	{
+		std::string name;
+		double from{0.0};
+		double to{0.0};
+		double step{0.1};
+		words >> name >> from >> to >> step;
+		auto *sweep{simulation::Sweeps.find(name)};
+		if (sweep == nullptr)
+			return selftest_result::handled;
+		auto const side{sweep->definition().lateral >= 0.0 ? 1 : 0};
+		if (step <= 0.0)
+			return selftest_result::handled;
+		for (int i = 0; from + i * step <= to + 1e-9; ++i)
+		{
+			auto const station{from + i * step};
+			auto const at{sweep->frame_at(station)};
+			WriteLog(format("SELFTEST frame %s %.2f: %.3f %.3f %.3f widening %.4f cant %.4f setback %.4f", name.c_str(), station, at.position.x, at.position.y, at.position.z, at.widening[side], at.cant[side], sweep->setback(at)));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "weather")
+	{
+		auto const &time{simulation::Time.data()};
+		WriteLog(format("SELFTEST weather: %02d:%02d, fog end %.0f m, overcast %.2f", time.wHour, time.wMinute, Global.fFogEnd, Global.Overcast));
+		return selftest_result::handled;
+	}
+	if (command == "projtest")
+	{
+		screen_projection const projection;
+		for (std::size_t i = 0; i < m_sweep.outline.size() && i < 45; i += 4)
+		{
+			ImVec2 screen;
+			auto const shown{projection.project(m_sweep.outline[i], screen)};
+			auto const clip{projection.clip(m_sweep.outline[i])};
+			WriteLog(format("SELFTEST proj %zu: %.1f %.1f %.1f -> %d %.0f %.0f w %.2f", i, m_sweep.outline[i].x, m_sweep.outline[i].y, m_sweep.outline[i].z, shown ? 1 : 0, screen.x, screen.y, clip.w));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "newscenery")
+	{
+		WriteLog(restart_for_new_scenery() ? "SELFTEST newscenery: started" : "SELFTEST newscenery: failed");
+		return selftest_result::pause;
+	}
+	if (command == "vehicles")
+	{
+		for (auto *vehicle : simulation::Vehicles.sequence())
+		{
+			if (vehicle == nullptr)
+				continue;
+			auto const head{vehicle->HeadPosition()};
+			auto const front{vehicle->VectorFront()};
+			auto const coupler = [&](int const End) {
+				auto const &coupler{vehicle->MoverParameters->Couplers[End]};
+				return coupler.Connected != nullptr ? coupler.Connected->Name + "/" + std::to_string(coupler.CouplingFlag) : std::string{"-"};
+			};
+			WriteLog(format("SELFTEST vehicle %s head %.2f %.2f front %.2f %.2f dir %d coupler0 %s coupler1 %s", vehicle->name().c_str(), head.x, head.z, front.x, front.z, vehicle->iDirection, coupler(0).c_str(), coupler(1).c_str()));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "mouseat")
+	{
+		glm::dvec3 at{0.0};
+		words >> at.x >> at.y >> at.z;
+		ImVec2 projected;
+		if (false == screen_projection{}.project(at, projected))
+		{
+			WriteLog("SELFTEST mouseat: behind the camera");
+			return selftest_result::handled;
+		}
+		test.input.mouse_to(glm::dvec2{projected.x, projected.y});
+		WriteLog(format("SELFTEST mouse %.0f %.0f", projected.x, projected.y));
+		return selftest_result::handled;
+	}
+	if (command == "glide")
+	{
+		glm::dvec3 at{0.0};
+		int steps{8};
+		int every{2};
+		std::string shots;
+		words >> at.x >> at.y >> at.z >> steps >> every >> shots;
+		ImVec2 projected;
+		if (false == screen_projection{}.project(at, projected))
+			return selftest_result::handled;
+		glm::dvec2 const from{test.input.mouse().value_or(glm::dvec2{projected.x, projected.y})};
+		glm::dvec2 const to{projected.x, projected.y};
+		std::vector<std::string> expanded;
+		for (int step = 1; step <= std::max(1, steps); ++step)
+		{
+			auto const t{static_cast<double>(step) / std::max(1, steps)};
+			auto const eased{t * t * (3.0 - 2.0 * t)};
+			auto const point{glm::mix(from, to, eased)};
+			expanded.push_back(format("mouse %.1f %.1f", point.x, point.y));
+			expanded.push_back("wait " + std::to_string(std::max(1, every)));
+			if (shots == "shot")
+				expanded.push_back("screenshot");
+		}
+		test.lines.insert(test.lines.begin() + static_cast<std::ptrdiff_t>(test.next), expanded.begin(), expanded.end());
+		return selftest_result::handled;
+	}
+	if (test.input.dispatch(command, words))
+		return selftest_result::handled;
+	if (command == "screenshot")
+	{
+		Application.queue_screenshot();
+		test.wait = 3;
+		return selftest_result::pause;
+	}
+	if (command == "save")
+	{
+		save();
+		return selftest_result::handled;
+	}
+	if (command == "ortho")
+	{
+		float extent{0.0f};
+		words >> extent;
+		choose_work_area(work_area::tracks);
+		if (Global.EditorOrtho == extent < 0.0f)
+			toggle_ortho();
+		if (extent > 0.0f)
+			Global.EditorOrthoExtent = std::clamp(extent, 5.0f, 50000.0f);
+		WriteLog(format("SELFTEST ortho extent %.0f", Global.EditorOrthoExtent));
+		return selftest_result::handled;
+	}
+	if (command == "mapstate")
+	{
+		auto const marked{scene::Layers.empty() ? std::vector<std::string>{} : scene::Layers.marked(scene::layer_handle{1}, "//$o")};
+		WriteLog(format("SELFTEST mapstate orthophoto %d top %d extent %.0f mark %s camera %.1f %.1f %.1f", m_orthophoto.enabled() ? 1 : 0, Global.EditorOrtho ? 1 : 0, Global.EditorOrthoExtent, marked.empty() ? "-" : marked.front().c_str(), Camera.Pos.x, Camera.Pos.y, Camera.Pos.z));
+		return selftest_result::handled;
+	}
+	if (command == "trainset")
+	{
+		std::string name;
+		std::string vehicle;
+		std::string skin;
+		int facing{1};
+		words >> name >> vehicle >> skin >> facing >> m_vehicle.velocity;
+		auto *track{simulation::Paths.find(name)};
+		if (track == nullptr)
+			return selftest_result::handled;
+		auto desc{std::make_shared<ui::vehicle_desc>()};
+		desc->path = vehicle;
+		auto set{std::make_shared<ui::skin_set>()};
+		set->skin = skin;
+		m_vehicle.consist.clear();
+		m_vehicle.vehicle = desc;
+		m_vehicle.skin = set;
+		vehicle_start(*track, geometry::bezier{track->m_paths.front()}.point(0.5));
+		m_vehicle.facing = facing;
+		auto const placed{vehicle_place()};
+		WriteLog(format("SELFTEST trainset %s placed %d pending %d: %s", name.c_str(), placed ? 1 : 0, static_cast<int>(m_vehicle.trainsets.size()), m_vehicle.status.c_str()));
+		return selftest_result::handled;
+	}
+	if (command == "selectmodel")
+	{
+		glm::dvec3 point{0.0};
+		words >> point.x >> point.z;
+		TAnimModel *nearest{nullptr};
+		auto best{50.0};
+		for (auto *model : simulation::Instances.sequence())
+		{
+			if (model == nullptr)
+				continue;
+			auto const distance{glm::length(glm::dvec2{model->location().x - point.x, model->location().z - point.z})};
+			if (distance < best)
+			{
+				best = distance;
+				nearest = model;
+			}
+		}
+		m_node = nearest;
+		select_include(0);
+		ui()->set_node(m_node);
+		WriteLog("SELFTEST selectmodel: " + (nearest != nullptr ? format("%s at %.2f %.2f %.2f", nearest->name().c_str(), nearest->location().x, nearest->location().y, nearest->location().z) : std::string{"none"}));
+		return selftest_result::handled;
+	}
+	if (command == "addmodel")
+	{
+		glm::dvec3 point{0.0};
+		words >> point.x >> point.z;
+		TAnimModel *nearest{nullptr};
+		auto best{50.0};
+		for (auto *model : simulation::Instances.sequence())
+		{
+			if (model == nullptr)
+				continue;
+			auto const distance{glm::length(glm::dvec2{model->location().x - point.x, model->location().z - point.z})};
+			if (distance < best)
+			{
+				best = distance;
+				nearest = model;
+			}
+		}
+		select_node(nearest, true);
+		WriteLog("SELFTEST addmodel: " + (nearest != nullptr ? format("%s at %.2f %.2f %.2f", nearest->name().c_str(), nearest->location().x, nearest->location().y, nearest->location().z) : std::string{"none"}));
+		return selftest_result::handled;
+	}
+	if (command == "selection")
+	{
+		std::string text;
+		for (auto *node : selection_with_groups())
+			text += format(" [%s %.2f %.2f %.2f group %d]", node->name().c_str(), node->location().x, node->location().y, node->location().z, static_cast<int>(node->group()));
+		WriteLog("SELFTEST selection:" + text);
+		return selftest_result::handled;
+	}
+	if (command == "moveselection" && m_node != nullptr)
+	{
+		glm::dvec3 offset{0.0};
+		words >> offset.x >> offset.y >> offset.z;
+		selection_snapshots(EditorSnapshot::Action::Move);
+		auto const before{m_node->location()};
+		m_editor.translate(m_node, before + offset, true);
+		selection_follow(m_node->location() - before, glm::vec3(0.0f), m_node->location());
+		return selftest_result::handled;
+	}
+	if (command == "turnselection" && m_node != nullptr)
+	{
+		float degrees{0.0f};
+		words >> degrees;
+		selection_snapshots(EditorSnapshot::Action::Rotate);
+		glm::vec3 const turned{0.0f, degrees, 0.0f};
+		m_editor.rotate(m_node, turned, 0.0f);
+		selection_follow(glm::dvec3(0.0), turned, m_node->location());
+		return selftest_result::handled;
+	}
+	if (command == "copy")
+	{
+		copy_selection();
+		return selftest_result::handled;
+	}
+	if (command == "paste")
+	{
+		glm::dvec3 point{0.0};
+		words >> point.x >> point.y >> point.z;
+		paste_clipboard(point);
+		return selftest_result::handled;
+	}
+	if (command == "group")
+	{
+		group_selection();
+		return selftest_result::handled;
+	}
+	if (command == "ungroup")
+	{
+		ungroup_selection();
+		return selftest_result::handled;
+	}
+	if (command == "drop")
+	{
+		drop_selection_to_ground();
+		return selftest_result::handled;
+	}
+	if (command == "delete")
+	{
+		delete_selected();
+		return selftest_result::handled;
+	}
+	if (command == "selectinclude")
+	{
+		glm::dvec3 point{0.0};
+		words >> point.x >> point.z;
+		scene::instance_handle nearest{0};
+		auto best{50.0};
+		m_node = nullptr;
+		for (scene::instance_handle instance = 1; instance <= scene::Layers.instance_count(); ++instance)
+		{
+			if (false == scene::Layers.removable(instance))
+				continue;
+			select_include(instance);
+			bend_source source;
+			if (false == bend_source_of_selection(source))
+				continue;
+			auto const at{glm::dvec3(source.transform[3])};
+			auto const distance{glm::length(glm::dvec2{at.x - point.x, at.z - point.z})};
+			if (distance < best)
+			{
+				best = distance;
+				nearest = instance;
+			}
+		}
+		select_include(nearest);
+		WriteLog("SELFTEST selectinclude: " + (nearest != 0 ? *scene::Layers.instance(nearest).file : std::string{"none"}));
+		return selftest_result::handled;
+	}
+	if (command == "modelbox")
+	{
+		auto *model{dynamic_cast<TAnimModel *>(m_node)};
+		bend_source source;
+		if (model == nullptr || false == bend_source_of_selection(source))
+		{
+			WriteLog("SELFTEST modelbox: no model selected");
+			return selftest_result::handled;
+		}
+		scene::node_data data;
+		sweep_node probe{data};
+		sweep_node::state state;
+		state.model = source.file;
+		state.skin = source.skin;
+		state.scale = source.scale;
+		probe.define(state);
+		glm::dvec3 boxlow{std::numeric_limits<double>::max()};
+		glm::dvec3 boxhigh{-std::numeric_limits<double>::max()};
+		for (auto const &item : probe.items())
+		{
+			auto const transform{source.transform * glm::scale(glm::dmat4(1.0), source.scale) * item.transform};
+			std::vector<TSubModel *> pending{item.model->GetSMRoot()};
+			while (false == pending.empty())
+			{
+				auto *submodel{pending.back()};
+				pending.pop_back();
+				for (; submodel != nullptr; submodel = submodel->Next)
+				{
+					if (submodel->Child != nullptr)
+						pending.push_back(submodel->Child);
+					if (submodel->eType != GL_TRIANGLES || submodel->fSquareMinDist > 0.f || (submodel->m_geometry.handle.bank == 0 && submodel->m_geometry.handle.chunk == 0))
+						continue;
+					glm::dmat4 local{1.0};
+					for (auto *parent = submodel; parent != nullptr; parent = parent->Parent)
+						if ((parent->iFlags & 0xC000) != 0 && parent->GetMatrix() != nullptr)
+							local = glm::dmat4(glm::make_mat4(parent->GetMatrix()->readArray())) * local;
+					for (auto const &vertex : GfxRenderer->Vertices(submodel->m_geometry.handle))
+					{
+						auto const world{glm::dvec3(transform * local * glm::dvec4(glm::dvec3(vertex.position), 1.0))};
+						boxlow = glm::min(boxlow, world);
+						boxhigh = glm::max(boxhigh, world);
+					}
+				}
+			}
+		}
+		WriteLog(format("SELFTEST modelbox: %.2f %.2f %.2f - %.2f %.2f %.2f", boxlow.x, boxlow.y, boxlow.z, boxhigh.x, boxhigh.y, boxhigh.z));
+		return selftest_result::handled;
+	}
+	if (command == "key")
+	{
+		std::string key;
+		std::string action;
+		std::string mods;
+		words >> key >> action >> mods;
+		if (key == "RMB")
+			m_input.mouse.button(GLFW_MOUSE_BUTTON_RIGHT, action == "press" ? GLFW_PRESS : GLFW_RELEASE);
+		else
+		{
+			auto const code{key == "S" ? GLFW_KEY_S : key == "W" ? GLFW_KEY_W : key == "CTRL" ? GLFW_KEY_LEFT_CONTROL : 0};
+			on_key(code, 0, action == "press" ? GLFW_PRESS : GLFW_RELEASE, mods == "ctrl" ? GLFW_MOD_CONTROL : 0);
+		}
+		WriteLog(format("SELFTEST key %s %s %s: camera %.2f %.2f %.2f, key S %d, right button %d", key.c_str(), action.c_str(), mods.c_str(), Camera.Pos.x, Camera.Pos.y, Camera.Pos.z, static_cast<int>(input::keys[GLFW_KEY_S]), m_input.mouse.button(GLFW_MOUSE_BUTTON_RIGHT)));
+		return selftest_result::handled;
+	}
+	if (command == "event")
+	{
+		std::string name;
+		words >> name;
+		auto *event{simulation::Events.FindEvent(name)};
+		if (event != nullptr)
+			simulation::Events.AddToQuery(event, nullptr);
+		WriteLog("SELFTEST event " + name + (event != nullptr ? " queued" : ": no such event"));
+		return selftest_result::handled;
+	}
+	if (command == "memcell")
+	{
+		std::string name;
+		words >> name;
+		auto *cell{simulation::Memory.find(name)};
+		WriteLog("SELFTEST memcell " + name + (cell != nullptr ? format(": %s %.1f %.1f", cell->Text().c_str(), cell->Value1(), cell->Value2()) : std::string{": none"}));
+		return selftest_result::handled;
+	}
+	if (command == "newscenerypopup")
+	{
+		m_newscenery_asked = true;
+		return selftest_result::handled;
+	}
+	if (command == "openscenerypopup")
+	{
+		m_openscenery_asked = true;
+		std::snprintf(m_openscenery_search, sizeof(m_openscenery_search), "%s", "zz_");
+		return selftest_result::handled;
+	}
+	if (command == "openscenery")
+	{
+		std::string name;
+		words >> name;
+		WriteLog(restart_editor(name) ? "SELFTEST openscenery: started " + name : "SELFTEST openscenery: failed");
+		return selftest_result::handled;
+	}
+	if (command == "undo")
+	{
+		undo_last();
+		WriteLog("SELFTEST undo");
+		return selftest_result::handled;
+	}
+	if (command == "redo")
+	{
+		redo_last();
+		WriteLog("SELFTEST redo");
+		return selftest_result::handled;
+	}
+	if (command == "log")
+	{
+		std::string text;
+		std::getline(words, text);
+		WriteLog("SELFTEST" + text);
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftestsignal.cpp

@@ -0,0 +1,201 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_signal(std::string const &command, std::istringstream &words)
+{
+	if (command == "signal" || command == "signalmove" || command == "signaldelete" || command == "signalrename" || command == "signalprobe")
+	{
+		std::map<std::string, std::string> values;
+		std::string pair;
+		while (words >> pair)
+		{
+			auto const equals{pair.find('=')};
+			if (equals != std::string::npos)
+				values[pair.substr(0, equals)] = pair.substr(equals + 1);
+		}
+		show_track_tab(track_tab::signals);
+		signal_refresh(true);
+		auto &tool{m_signal};
+		auto const standing_named = [&](std::string const &Name) -> signal_standing const * {
+			auto const found{std::find_if(tool.standing.begin(), tool.standing.end(), [&](signal_standing const &Standing) { return Standing.name == Name; })};
+			return found != tool.standing.end() ? &*found : nullptr;
+		};
+		auto const spot_on = [&](signal_template const &Template, int const Facing, int const Side, signal_spot &Spot) {
+			auto *track{simulation::Paths.find(values["track"])};
+			if (track == nullptr)
+				return false;
+			auto const path{values.count("path") ? std::stoi(values["path"]) : 0};
+			auto const at{values.count("at") ? std::stod(values["at"]) : 0.5};
+			geometry::bezier const curve{track->m_paths[std::clamp(path, 0, static_cast<int>(track->m_paths.size()) - 1)]};
+			return signal_spot_at(*track, path, curve.point(at), curve.point(at), Facing, Side, Template, Spot);
+		};
+		if (command == "signal")
+		{
+			auto const *item{signal_template_of(values["file"])};
+			if (item == nullptr)
+			{
+				WriteLog("SELFTEST signal: no signal template " + values["file"]);
+				return selftest_result::handled;
+			}
+			for (int k = 0; k < static_cast<int>(tool.templates.size()); ++k)
+				if (&tool.templates[k] == item)
+				{
+					static char const *const kinds[] = {"main", "block", "warning", "shunt", "stop", "substitute", "repeater"};
+					for (int i = 0; i < 7; ++i)
+						if (item->kind == kinds[i])
+						{
+							tool.kind = i;
+							tool.chosen[i] = k;
+						}
+				}
+			if (values.count("name"))
+				std::snprintf(tool.name, sizeof(tool.name), "%s", values["name"].c_str());
+			if (values.count("plate"))
+				std::snprintf(tool.plate, sizeof(tool.plate), "%s", values["plate"].c_str());
+			auto const side{values["side"] == "left" ? -1 : 1};
+			auto const facing{values["facing"] == "along" ? 1 : values["facing"] == "against" ? -1 : 0};
+			signal_spot spot;
+			if (false == spot_on(*signal_armed(), facing, side, spot))
+			{
+				WriteLog("SELFTEST signal: no such track " + values["track"]);
+				return selftest_result::handled;
+			}
+			auto const placed{signal_place(spot, *signal_armed())};
+			WriteLog(format("SELFTEST signal %s: %s", placed ? "placed" : "failed", tool.status.c_str()));
+		}
+		else if (command == "signalmove")
+		{
+			auto const *standing{standing_named(values["name"])};
+			auto const *item{standing != nullptr ? signal_template_of(standing->include.file) : nullptr};
+			if (item == nullptr)
+			{
+				WriteLog("SELFTEST signalmove: no signal " + values["name"]);
+				return selftest_result::handled;
+			}
+			auto const yaw{glm::radians(standing->include.yaw + 180.0)};
+			glm::dvec2 const travel{std::sin(yaw), std::cos(yaw)};
+			signal_spot probe;
+			if (false == spot_on(*item, 1, 1, probe))
+			{
+				WriteLog("SELFTEST signalmove: no such track " + values["track"]);
+				return selftest_result::handled;
+			}
+			auto const facing{glm::dot(probe.travel, travel) >= 0.0 ? 1 : -1};
+			auto const sideoftravel{glm::dot(geometry::plan_of(standing->include.location) - geometry::plan_of(standing->spot.axis), glm::dvec2{-travel.y, travel.x}) >= 0.0 ? 1 : -1};
+			signal_select(standing->include.instance);
+			tool.moving = true;
+			tool.moved_valid = spot_on(*item, facing, sideoftravel * facing, tool.moved);
+			tool.pressed = {-1000.f, -1000.f};
+			signal_release();
+			WriteLog("SELFTEST signalmove: " + tool.status);
+		}
+		else if (command == "signaldelete")
+		{
+			auto const *standing{standing_named(values["name"])};
+			auto const deleted{standing != nullptr && signal_delete(standing->include.instance)};
+			WriteLog(std::string{"SELFTEST signaldelete "} + values["name"] + (deleted ? ": removed with its event" : ": not removed by the signal tool"));
+		}
+		else if (command == "signalrename")
+		{
+			auto const *standing{standing_named(values["name"])};
+			if (standing == nullptr)
+			{
+				WriteLog("SELFTEST signalrename: no signal " + values["name"]);
+				return selftest_result::handled;
+			}
+			select_include(standing->include.instance);
+			m_include.values[0] = values["to"];
+			apply_include();
+			m_include_gesture = false;
+			WriteLog("SELFTEST signalrename " + values["name"] + " -> " + values["to"]);
+		}
+		else
+		{
+			signal_refresh(true);
+			WriteLog(format("SELFTEST signalprobe: %zu signals", tool.standing.size()));
+			for (auto const &standing : tool.standing)
+			{
+				std::string where{"not read"};
+				if (standing.track != nullptr)
+				{
+					auto const &curve{standing.track->m_paths.front()};
+					geometry::bezier const bez{curve};
+					auto best{std::numeric_limits<double>::max()};
+					double parameter{0.0};
+					for (int k = 0; k <= 1024; ++k)
+					{
+						auto const d{geometry::plan_distance(bez.point(k / 1024.0), standing.include.location)};
+						if (d < best)
+						{
+							best = d;
+							parameter = k / 1024.0;
+						}
+					}
+					auto const axis{bez.point(parameter)};
+					auto tangent{bez.first(parameter)};
+					glm::dvec2 travel{tangent.x, tangent.z};
+					travel = glm::normalize(travel) * (standing.list == 1 ? -1.0 : 1.0);
+					glm::dvec2 const offset{standing.include.location.x - axis.x, standing.include.location.z - axis.z};
+					auto const cross{travel.x * offset.y - travel.y * offset.x};
+					auto heading{glm::degrees(std::atan2(travel.x, travel.y))};
+					auto turn{std::fmod(standing.include.yaw - heading + 720.0, 360.0)};
+					auto const &list{editor_track::events(*standing.track, standing.list)};
+					auto const bound{std::any_of(list.begin(), list.end(), [&](auto const &Event) { return Event.second != nullptr && ToLower(Event.first) == ToLower(standing.read); })};
+					where = std::string{bound ? "bound, " : "unbound, "} + format("%s of %s, %.3f m from the axis, %s of the trains, %.3f m over the axis, model turned %.1f deg from the travel", editor_track::event_keyword(standing.list), standing.track->name().c_str(), glm::length(offset), cross > 0.0 ? "right" : "left",
+					               standing.include.location.y - axis.y, turn);
+				}
+				WriteLog(format("SELFTEST signalprobe %s %s at %.3f %.3f %.3f yaw %.2f read %s: %s", standing.name.c_str(), standing.include.file.c_str(), standing.include.location.x, standing.include.location.y, standing.include.location.z, standing.include.yaw,
+				                standing.read.empty() ? "-" : standing.read.c_str(), where.c_str()));
+			}
+		}
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftestsleepers.cpp

@@ -0,0 +1,164 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+#include "world/TrackSleepers.h"
+
+editor_mode::selftest_result editor_mode::selftest_sleepers(std::string const &command, std::istringstream &words)
+{
+	if (command == "beams")
+	{
+		// the beams the track lays, between two distances along it: their middles, lengths and the way they lie square to
+		std::string name;
+		double from{-1e9}, to{1e9};
+		words >> name >> from >> to;
+		auto *track{simulation::Paths.find(name)};
+		if (track == nullptr || false == track->m_sleepers3d.active)
+		{
+			WriteLog("SELFTEST beams: no track with beams " + name);
+			return selftest_result::handled;
+		}
+		std::string text;
+		for (auto const &beam : track_sleepers::place(*track))
+		{
+			auto const middle{0.5 * (beam.from + beam.to)};
+			if (middle.z < from || middle.z > to)
+				continue;
+			text += format(" [%.2f %.2f L%.2f a%.2f%s]", middle.x, middle.z, glm::length(beam.to - beam.from), glm::degrees(std::atan2(beam.along.x, beam.along.z)), beam.plain ? " p" : "");
+		}
+		WriteLog("SELFTEST beams " + name + ":" + text);
+		return selftest_result::handled;
+	}
+	if (command == "sharedzones")
+	{
+		// how far the timbers shared with other tracks reach along the paths of the track and of the tracks joined to its ends
+		std::string name;
+		words >> name;
+		auto *track{simulation::Paths.find(name)};
+		if (track == nullptr)
+		{
+			WriteLog("SELFTEST sharedzones: no track " + name);
+			return selftest_result::handled;
+		}
+		auto const zones_text = [](TTrack const &Track, int const Path) {
+			std::string text;
+			for (auto const &zone : track_sleepers::shared_zones(Track, Path))
+				text += format(" %.2f..%.2f", zone.first, zone.second);
+			return text.empty() ? std::string{" none"} : text;
+		};
+		auto const paths{track->eType == tt_Switch ? 2 : 1};
+		for (int path = 0; path < paths; ++path)
+		{
+			auto const length{track->eType == tt_Switch ? track->SwitchExtension->Segments[path]->GetLength() : track->Segment->GetLength()};
+			WriteLog(format("SELFTEST sharedzones %s path %d (%.2f m):%s", name.c_str(), path, length, zones_text(*track, path).c_str()));
+			// the track going on from the end of the path, and how far past the end the shared timbers reach along it
+			auto *next{track->eType == tt_Switch ? track->SwitchExtension->pNexts[path] : track->trNext};
+			if (next == nullptr || next->eType != tt_Normal || next->Segment == nullptr)
+				continue;
+			glm::dvec3 end, start, unused;
+			glm::vec3 angles;
+			(track->eType == tt_Switch ? track->SwitchExtension->Segments[path] : track->Segment)->RaPositionGet(length, end, angles);
+			next->Segment->RaPositionGet(0.0, start, angles);
+			auto const fromstart{glm::length(start - end) < 0.1};
+			auto past{0.0};
+			for (auto const &zone : track_sleepers::shared_zones(*next, 0))
+			{
+				if (fromstart && zone.first < 0.05)
+					past = zone.second;
+				else if (false == fromstart && zone.second > next->Segment->GetLength() - 0.05)
+					past = next->Segment->GetLength() - zone.first;
+			}
+			WriteLog(format("SELFTEST sharedzones %s path %d goes on into %s:%s; shared timbers reach %.2f m past the end", name.c_str(), path, next->name().c_str(), zones_text(*next, 0).c_str(), past));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "sleepersbg")
+	{
+		// the sleepers worked out in the background as in the simulation, to see they come out the same, or back to as they're needed
+		int on{1};
+		words >> on;
+		track_sleepers::lay_in_background(on != 0);
+		for (auto *track : simulation::Paths.sequence())
+			if (track != nullptr)
+				track->m_sleepers3d.dirty = true;
+		track_sleepers::unsettle_around(*simulation::Paths.sequence().front());
+		WriteLog(format("SELFTEST sleepersbg %d", on));
+		return selftest_result::handled;
+	}
+	if (command == "beamsnear")
+	{
+		double x{0.0}, z{0.0}, radius{3.0};
+		words >> x >> z >> radius;
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || false == track->m_sleepers3d.active)
+				continue;
+			for (auto const &beam : track_sleepers::place(*track))
+			{
+				auto const middle{0.5 * (beam.from + beam.to)};
+				if (glm::length(glm::dvec2{middle.x - x, middle.z - z}) > radius)
+					continue;
+				WriteLog(format("SELFTEST beam %s: %.2f %.2f -> %.2f %.2f, %.2f m, along %.1f deg%s", track->name().c_str(), beam.from.x, beam.from.z, beam.to.x, beam.to.z, glm::length(beam.to - beam.from), glm::degrees(std::atan2(beam.along.x, beam.along.z)), beam.plain ? " plain" : ""));
+			}
+		}
+		return selftest_result::handled;
+	}
+	if (command == "sleepercheck")
+	{
+		auto const start{std::chrono::steady_clock::now()};
+		auto const result{track_sleepers::check()};
+		WriteLog(format("SELFTEST sleepercheck: %zu beams, %zu overlaps, %zu gaps, %zu bare rails, %zu too long (longest %.2f m), widest spacing %.2f m at %s; %zu shared off one plane, %zu switch panels off one plane, %zu ends clipped, %zu beams dropped, slowest cluster %.1f ms of %zu tracks; digest %016llx; in %.1f ms",
+		    result.beams, result.overlaps, result.gaps, result.bare, result.toolong, result.longest, result.widest, result.widestat.c_str(), result.offplane, result.panels, result.clipped, result.dropped, result.slowest, result.biggest, static_cast<unsigned long long>(result.digest),
+		    std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - start).count()));
+		for (auto const &example : result.examples)
+			WriteLog("SELFTEST sleepercheck " + example);
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftestsweep.cpp

@@ -0,0 +1,429 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_sweep(std::string const &command, std::istringstream &words)
+{
+	if (command == "sweep")
+	{
+		std::map<std::string, std::string> values;
+		std::string pair;
+		while (words >> pair)
+		{
+			auto const equals{pair.find('=')};
+			if (equals != std::string::npos)
+				values[pair.substr(0, equals)] = pair.substr(equals + 1);
+		}
+		auto &tool{m_sweep};
+		auto const get = [&](char const *Key, std::string const &Default) { auto const found{values.find(Key)}; return found != values.end() ? found->second : Default; };
+		tool.edited = nullptr;
+		tool.curve_for = nullptr;
+		std::snprintf(tool.model, sizeof(tool.model), "%s", get("model", "").c_str());
+		tool.parameters.clear();
+		std::stringstream parameters(get("params", ""));
+		std::string parameter;
+		while (std::getline(parameters, parameter, ','))
+		{
+			tool.parameters.emplace_back();
+			std::snprintf(tool.parameters.back().data(), tool.parameters.back().size(), "%s", parameter.c_str());
+		}
+		tool.parameters_for = tool.model;
+		auto &settings{tool.settings};
+		settings.lateral = std::stod(get("lateral", "0"));
+		settings.height = std::stod(get("height", "0"));
+		auto const side{get("side", "origin")};
+		settings.side_anchor = side == "near" ? 1 : side == "far" ? 2 : side == "centre" ? 3 : 0;
+		auto const top{get("top", "origin")};
+		settings.height_anchor = top == "bottom" ? 1 : top == "top" ? 2 : top == "edge" ? 3 : 0;
+		settings.bend = get("mode", "bend") != "repeat";
+		settings.step = std::stod(get("step", "0"));
+		settings.widen = get("widen", "0") == "1";
+		settings.platform = get("platform", "0") == "1";
+		settings.face = get("face", "1") == "1";
+		settings.tilt = get("tilt", "0") == "1";
+		settings.from = std::stod(get("from", "0"));
+		settings.to = std::stod(get("to", "-1"));
+		auto const length{get("length", "all")};
+		tool.length_mode = length == "original" ? 0 : length == "all" ? 2 : 1;
+		if (tool.length_mode == 1)
+			tool.length = std::stod(length);
+		if (values.count("edge"))
+			EditorSettings.platform_edge(std::stod(values["edge"]));
+		tool.measured.clear();
+		tool.open = true;
+		sweep_curve();
+		sweep_measure();
+		if (values.count("widen"))
+			settings.widen = get("widen", "0") == "1";
+		if (values.count("platform"))
+			settings.platform = get("platform", "0") == "1";
+		if (get("create", "1") == "1")
+		{
+			sweep_create();
+			WriteLog("SELFTEST sweep: " + tool.status);
+		}
+		return selftest_result::handled;
+	}
+	if (command == "drag")
+	{
+		glm::dvec3 from{0.0};
+		glm::dvec3 to{0.0};
+		words >> from.x >> from.z >> to.x >> to.z;
+		m_sweep.open = true;
+		if (false == sweep_press_at(from, false))
+		{
+			WriteLog("SELFTEST drag: the press wasn't taken");
+			return selftest_result::handled;
+		}
+		sweep_drag_at(to);
+		sweep_release();
+		WriteLog("SELFTEST drag: " + m_sweep.status);
+		return selftest_result::handled;
+	}
+	if (command == "fouling")
+	{
+		std::map<std::string, std::string> values;
+		std::string pair;
+		while (words >> pair)
+		{
+			auto const equals{pair.find('=')};
+			if (equals != std::string::npos)
+				values[pair.substr(0, equals)] = pair.substr(equals + 1);
+		}
+		auto &tool{m_fouling};
+		if (values["show"] == "1")
+		{
+			show_track_tab(track_tab::lineside);
+			tool.expand = true;
+		}
+		tool.scope = std::stoi(values.count("scope") ? values["scope"] : "2");
+		tool.height_mode = values["mode"] == "ground" ? 0 : 1;
+		tool.height = std::stod(values.count("height") ? values["height"] : "0");
+		tool.dirty = true;
+		fouling_update();
+		WriteLog("SELFTEST fouling: " + tool.status);
+		int shown{0};
+		for (auto const &found : tool.found)
+			if (found.wrong && shown++ < 5)
+				WriteLog(format("SELFTEST fouling: %s %.2f m off, %+.3f m high", found.marker.file.c_str(), found.error, found.height_error));
+		if (values["place"] == "one")
+		{
+			// the first fouling point without a marker alone, as a click on it in the view
+			for (int index = 0; index < static_cast<int>(tool.points.size()); ++index)
+				if (tool.points[index].standing < 0)
+				{
+					fouling_place(index);
+					break;
+				}
+			tool.dirty = true;
+			fouling_update();
+			WriteLog("SELFTEST fouling one: " + tool.status);
+		}
+		if (values["place"] == "1")
+		{
+			fouling_place();
+			tool.dirty = true;
+			fouling_update();
+			WriteLog("SELFTEST fouling after placing: " + tool.status);
+		}
+		if (values["fix"] == "1")
+		{
+			fouling_fix();
+			tool.dirty = true;
+			fouling_update();
+			WriteLog("SELFTEST fouling after the fix: " + tool.status);
+		}
+		return selftest_result::handled;
+	}
+	if (command == "hekto")
+	{
+		std::map<std::string, std::string> values;
+		std::string pair;
+		while (words >> pair)
+		{
+			auto const equals{pair.find('=')};
+			if (equals != std::string::npos)
+				values[pair.substr(0, equals)] = pair.substr(equals + 1);
+		}
+		auto *track{simulation::Paths.find(values["track"])};
+		if (track == nullptr)
+		{
+			WriteLog("SELFTEST hekto: no such track");
+			return selftest_result::handled;
+		}
+		hekto_start(*track, track->m_paths.front().points[segment_data::point::start]);
+		auto &tool{m_hekto};
+		tool.dirty = true;
+		hekto_update();
+		if (values.count("km"))
+		{
+			tool.km = std::stod(values["km"]);
+			tool.growth = values["growth"] == "-1" ? -1 : 1;
+		}
+		tool.side = values["side"] == "alt" ? 0 : values["side"] == "left" ? -1 : 1;
+		tool.dirty = true;
+		hekto_update();
+		auto const missing{std::count_if(tool.posts.begin(), tool.posts.end(), [](hekto_post const &Post) { return Post.standing < 0; })};
+		WriteLog(format("SELFTEST hekto: km %.3f growth %d, %zu posts along %.0f m, %d to place, %zu standing. %s", tool.km, tool.growth, tool.posts.size(), tool.samples.empty() ? 0.0 : tool.samples.back().chainage, static_cast<int>(missing), tool.found.size(), tool.status.c_str()));
+		for (std::size_t i = 0; i < tool.posts.size() && i < 4; ++i)
+		{
+			auto const &post{tool.posts[i]};
+			double lateral;
+			glm::dvec3 const axis{editor_track::sampled_position(tool.samples, post.chainage)};
+			auto const direction{editor_track::sampled_position(tool.samples, post.chainage + 1.0) - axis};
+			glm::dvec2 const offset{post.position.x - axis.x, post.position.z - axis.z};
+			lateral = glm::length(offset);
+			auto const right{(direction.x * offset.y - direction.z * offset.x) * tool.growth >= 0.0};
+			WriteLog(format("SELFTEST hekto post %d.%d at %.1f m, %.2f m from the axis, %s of the growing kilometrage, at %.1f %.1f %.1f", post.hectometres / 10, post.hectometres % 10, post.chainage, lateral, right ? "right" : "left", post.position.x, post.position.y,
+			                post.position.z));
+		}
+		if (values["place"] == "1")
+		{
+			hekto_place();
+			WriteLog("SELFTEST hekto: " + tool.status);
+		}
+		return selftest_result::handled;
+	}
+	if (command == "spread")
+	{
+		std::string name;
+		words >> name >> m_spread.stop >> m_spread.reach;
+		if (auto *track{simulation::Paths.find(name)})
+		{
+			std::string names;
+			for (auto const *other : track_spread_from(*track))
+				names += ' ' + other->name();
+			WriteLog("SELFTEST spread " + name + ":" + names + " | prev " + (track->trPrev ? track->trPrev->name() : std::string{"-"}) + " next " + (track->trNext ? track->trNext->name() : std::string{"-"}));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "turntable")
+	{
+		glm::dvec3 centre{0.0};
+		double yaw{0.0};
+		words >> centre.x >> centre.y >> centre.z >> yaw;
+		turntable_place(centre, yaw);
+		for (double angle; words >> angle;)
+		{
+			m_turntable.heading = m_turntable.table_yaw + angle;
+			m_turntable.exit_length = 10.0;
+			track_intent intent;
+			intent.what = track_intent::kind::turntable_exit;
+			turntable_press(intent);
+		}
+		WriteLog("SELFTEST turntable: " + (m_turntable.error.empty() ? m_turntable.status : m_turntable.error));
+		return selftest_result::handled;
+	}
+	if (command == "bend" || command == "bendset")
+	{
+		std::map<std::string, std::string> values;
+		std::string pair;
+		while (words >> pair)
+		{
+			auto const equals{pair.find('=')};
+			if (equals != std::string::npos)
+				values[pair.substr(0, equals)] = pair.substr(equals + 1);
+		}
+		auto const vector = [](std::string Text) {
+			std::replace(Text.begin(), Text.end(), ',', ' ');
+			std::istringstream numbers(Text);
+			glm::dvec3 result{0.0};
+			numbers >> result.x >> result.y >> result.z;
+			return result;
+		};
+		auto const index = [](std::string const &Text, std::vector<std::string> const &Names) {
+			return static_cast<int>(std::find(Names.begin(), Names.end(), Text) - Names.begin());
+		};
+		auto &tool{m_bend};
+		auto const along{values.count("along") ? index(values["along"], {"start", "origin", "middle", "end", "point"}) : tool.along_anchor};
+		auto const side{values.count("side") ? index(values["side"], {"origin", "near", "far", "middle", "point"}) : tool.side_anchor};
+		auto const height{values.count("height") ? index(values["height"], {"origin", "bottom", "top", "edge", "point"}) : tool.height_anchor};
+		auto const point{values.count("point") ? vector(values["point"]) : tool.point};
+		if (command == "bend")
+		{
+			tool.edited = nullptr;
+			tool.along_anchor = along;
+			tool.side_anchor = side;
+			tool.height_anchor = height;
+			tool.point = point;
+			tool.axis = values.count("axis") ? index(values["axis"], {"auto", "z", "x"}) : 0;
+			tool.turned = values["turned"] == "1";
+			bend_source source;
+			if (false == bend_source_of_selection(source))
+			{
+				std::string reason;
+				auto const editable{m_node != nullptr && scene::Layers.editable(m_node, &reason)};
+				WriteLog(format("SELFTEST bend: nothing to bend (node %p template %d editable %d %s, instance %d)", static_cast<void *>(m_node), m_node != nullptr && m_node->from_template() ? 1 : 0, editable ? 1 : 0, reason.c_str(), static_cast<int>(m_instance)));
+				return selftest_result::handled;
+			}
+			tool.tracks_for = nullptr;
+			bend_find_tracks(glm::dvec3(source.transform[3]), source.model != nullptr ? static_cast<void const *>(source.model) : reinterpret_cast<void const *>(static_cast<std::uintptr_t>(source.instance)));
+			tool.track = values.count("track") ? std::stoi(values["track"]) : 0;
+			if (values.count("pick"))
+				bend_pick(vector(values["pick"]));
+			if (tool.tracks.empty())
+			{
+				WriteLog("SELFTEST bend: no track nearby");
+				return selftest_result::handled;
+			}
+			sweep_node::state state;
+			std::vector<TTrack *> tracks;
+			bend_definition(source, *tool.tracks[tool.track].first, state, tracks);
+			WriteLog(format("SELFTEST bend: track %s, %zu paths, anchor before %.3f %.3f %.3f, lateral %.3f height %.3f from %.3f to %.3f, axis %s flip %d; %s", tool.tracks[tool.track].first->name().c_str(), tracks.size(),
+			                tool.marker.x, tool.marker.y, tool.marker.z, state.lateral, state.height, state.from, state.to, state.along_x ? "x" : "z", state.flip ? 1 : 0, tool.status.c_str()));
+			if (values["go"] == "1")
+			{
+				bend_selection();
+				WriteLog("SELFTEST bend: " + tool.status);
+			}
+		}
+		else if (auto *sweep{tool.edited})
+		{
+			auto state{sweep->definition()};
+			tool.along_anchor = along;
+			if (side != tool.side_anchor || height != tool.height_anchor || point != tool.point)
+			{
+				tool.side_anchor = side;
+				tool.height_anchor = height;
+				tool.point = point;
+				bend_reanchor(state, side, height, point);
+			}
+			if (values.count("lateral"))
+				state.lateral = std::stod(values["lateral"]);
+			if (values.count("up"))
+				state.height = std::stod(values["up"]);
+			if (values.count("widen"))
+				state.widen = values["widen"] == "1";
+			if (values.count("pick"))
+			{
+				bend_pick(vector(values["pick"]));
+				state = sweep->definition();
+			}
+			if (values.count("length"))
+			{
+				bend_stretch(*sweep, bend_fixed(*sweep, state.point), std::stod(values["length"]), state.point, state);
+			}
+			bend_edit(state);
+			WriteLog("SELFTEST bendset done");
+		}
+		return selftest_result::handled;
+	}
+	if (command == "bendprobe")
+	{
+		auto *sweep{m_bend.edited};
+		if (sweep == nullptr)
+		{
+			WriteLog("SELFTEST bendprobe: nothing bent");
+			return selftest_result::handled;
+		}
+		glm::dvec3 low;
+		glm::dvec3 high;
+		glm::dvec3 shift;
+		sweep->bounds(low, high, shift);
+		auto const &state{sweep->definition()};
+		auto const marker{bend_marker(*sweep)};
+		glm::dvec3 boxlow{std::numeric_limits<double>::max()};
+		glm::dvec3 boxhigh{-std::numeric_limits<double>::max()};
+		std::size_t vertices{0};
+		for (auto const &shape : sweep->create_shapes())
+			for (auto const &vertex : shape.data().vertices)
+			{
+				boxlow = glm::min(boxlow, vertex.position);
+				boxhigh = glm::max(boxhigh, vertex.position);
+				++vertices;
+			}
+		WriteLog(format("SELFTEST bendprobe %s: stations %.3f - %.3f, along the reference line %.3f m, model %.3f m, lateral %.3f height %.3f anchors %d/%d point %.3f %.3f %.3f, marker %.3f %.3f %.3f, box %.2f %.2f %.2f - %.2f %.2f %.2f, %zu vertices, removed %d",
+		                sweep->name().c_str(), sweep->start(), sweep->end(), sweep->distance_at(sweep->end()) - sweep->distance_at(sweep->start()), high.x - low.x, state.lateral, state.height, state.side_anchor, state.height_anchor, state.point.x,
+		                state.point.y, state.point.z, marker.x, marker.y, marker.z, boxlow.x, boxlow.y, boxlow.z, boxhigh.x, boxhigh.y, boxhigh.z, vertices, sweep->m_editorremoved ? 1 : 0));
+		return selftest_result::handled;
+	}
+	if (command == "lineside")
+	{
+		std::string tab;
+		words >> tab;
+		show_track_tab(tab == "parallel" ? track_tab::parallel : track_tab::lineside);
+		(tab == "vehicle" ? m_vehicle.expand : tab == "hekto" ? m_hekto.expand : tab == "fouling" ? m_fouling.expand : m_parallel.expand) = true;
+		return selftest_result::handled;
+	}
+	if (command == "bendpanel")
+	{
+		ui()->expand_bend();
+		return selftest_result::handled;
+	}
+	if (command == "gauge")
+	{
+		std::string name;
+		words >> name;
+		if (auto *track{simulation::Paths.find(name)})
+		{
+			scan_gauge(*track);
+			WriteLog(format("SELFTEST gauge %s: %d hits", name.c_str(), static_cast<int>(m_gauge.line.hits.size())));
+			for (auto const &hit : m_gauge.line.hits)
+				WriteLog(format("SELFTEST gauge hit %s depth %.3f at %.2f %.2f %.2f", hit.model.c_str(), hit.depth, hit.point.x, hit.point.y, hit.point.z));
+		}
+		else
+			WriteLog("SELFTEST gauge " + name + ": no such track");
+		return selftest_result::handled;
+	}
+	if (command == "ttincludes")
+	{
+		std::string name;
+		words >> name;
+		auto const *track{simulation::Paths.find(name)};
+		WriteLog(format("SELFTEST ttincludes %s: track %s, includes %d", name.c_str(), track == nullptr ? "none" : track->m_editorremoved ? "removed" : "present",
+		                track != nullptr ? static_cast<int>(turntable_includes(*track).size()) : -1));
+		return selftest_result::handled;
+	}
+	if (command == "checkspans")
+	{
+		WriteLog("SELFTEST spans: " + scene::Layers.check_sources());
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftestswitch.cpp

@@ -0,0 +1,771 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_switch(std::string const &command, std::istringstream &words)
+{
+	if (command == "curvedswitch")
+	{
+		std::string name;
+		std::string label;
+		glm::dvec3 at{0.0};
+		glm::dvec3 toward{0.0};
+		words >> name >> at.x >> at.z >> toward.x >> toward.z >> label;
+		std::replace(label.begin(), label.end(), '_', ' ');
+		m_node = simulation::Paths.find(name);
+		ui()->set_node(m_node);
+		show_track_tab(track_tab::turnout);
+		arm_switch();
+		auto &tool{m_switch};
+		for (int i = 0; i < static_cast<int>(tool.templates.size()); ++i)
+			if (false == label.empty() && tool.templates[i].label.find(label) != std::string::npos)
+			{
+				tool.armed = i;
+				break;
+			}
+		m_cursor_override = at;
+		auto const started{start_switch_placement()};
+		m_cursor_override.reset();
+		if (false == started)
+		{
+			WriteLog("SELFTEST curvedswitch: not started, " + tool.status);
+			return selftest_result::handled;
+		}
+		tool.mouse = glm::dvec3{toward.x, tool.point.y, toward.z};
+		finish_switch_placement();
+		WriteLog("SELFTEST curvedswitch " + (tool.armed >= 0 ? tool.templates[tool.armed].label : std::string{}) + ": " + tool.status);
+		return selftest_result::handled;
+	}
+	if (command == "designer")
+	{
+		std::string list;
+		int index{0};
+		words >> list >> index;
+		auto &designer{m_switch_designer};
+		designer.open = list != "close";
+		designer.from_catalogue = list != "own";
+		designer.selected = index;
+		return selftest_result::handled;
+	}
+	if (command == "release")
+	{
+		m_switch.placing = false;
+		lay_cancel();
+		m_cursor_override.reset();
+		return selftest_result::handled;
+	}
+	if (command == "hover")
+	{
+		glm::dvec3 at{0.0};
+		if (words >> at.x >> at.z)
+			m_cursor_override = at;
+		else
+			m_cursor_override.reset();
+		return selftest_result::handled;
+	}
+	if (command == "layhold")
+	{
+		int layout{0};
+		words >> layout >> m_lay.radius;
+		m_track_layout = static_cast<track_layout>(std::clamp(layout, 0, 3));
+		m_lay.active = true;
+		lay_cancel();
+		std::vector<glm::dvec3> points;
+		for (glm::dvec3 point{0.0}; words >> point.x >> point.z;)
+			points.push_back(point);
+		for (std::size_t i = 0; i + 1 < points.size(); ++i)
+		{
+			auto point{points[i]};
+			point.y = 5000.0;
+			std::vector<char> found;
+			auto const ground{ground_heights({point}, true, &found)};
+			point.y = found[0] != 0 ? ground[0] : m_lay.points.empty() ? 0.0 : m_lay.points.back().y;
+			m_lay.mouse_snap = editor_track::find_free_end(nullptr, 1, point, 3.0, {});
+			m_lay.mouse = m_lay.mouse_snap.track != nullptr ? point : lay_bed(point);
+			lay_click();
+		}
+		if (false == points.empty())
+			m_cursor_override = points.back();
+		WriteLog("SELFTEST layhold: " + m_lay.status);
+		return selftest_result::handled;
+	}
+	if (command == "switchkind")
+	{
+		// what the switch tool places, as chosen in its panel: single, slip, crossing or connection with the kind of it
+		std::string word;
+		int sub{0};
+		words >> word >> sub;
+		auto const kind{word == "slip" ? switch_kind::slip : word == "crossing" ? switch_kind::crossing : word == "connection" ? switch_kind::connection : switch_kind::single};
+		m_switch.connection_kind = sub;
+		choose_switch_kind(kind);
+		WriteLog(format("SELFTEST switchkind %s: kind %d, connection %d, armed %d", word.c_str(), static_cast<int>(current_switch_kind()), m_switch.connection, m_switch.armed));
+		return selftest_result::handled;
+	}
+	if (command == "connection" || command == "connectionplan" || command == "connectionhold")
+	{
+		std::string kindword;
+		std::string label;
+		std::string second;
+		glm::dvec3 at{0.0};
+		glm::dvec3 toward{0.0};
+		words >> kindword >> at.x >> at.z >> toward.x >> toward.z >> label >> second;
+		connection::kind kind{connection::kind::crossover};
+		if (kindword != "single" && false == connection::parse(kindword, kind))
+		{
+			WriteLog("SELFTEST connection: unknown kind " + kindword);
+			return selftest_result::handled;
+		}
+		auto &tool{m_switch};
+		for (std::string key; words >> key;)
+		{
+			if (key == "radius")
+				words >> tool.connection_radius;
+			else if (key == "gap")
+				words >> tool.connection_gap;
+			else if (key == "together")
+				words >> tool.connection_together;
+			else if (key == "stub")
+				words >> tool.connection_stub;
+			else if (key == "spacings")
+			{
+				std::string value;
+				words >> value;
+				std::snprintf(tool.connection_spacings, sizeof(tool.connection_spacings), "%s", value.c_str());
+			}
+		}
+		show_track_tab(track_tab::turnout);
+		arm_switch();
+		auto const find = [&](std::string Label) {
+			std::replace(Label.begin(), Label.end(), '_', ' ');
+			for (int i = 0; i < static_cast<int>(tool.templates.size()); ++i)
+				if (false == Label.empty() && Label != "-" && false == tool.templates[i].double_slip && false == tool.templates[i].twofold() && tool.templates[i].label.find(Label) != std::string::npos)
+					return i;
+			return -1;
+		};
+		auto const first{find(label)};
+		if (first < 0)
+		{
+			WriteLog("SELFTEST connection: no template " + label);
+			return selftest_result::handled;
+		}
+		tool.armed = first;
+		tool.connection_second = find(second);
+		tool.connection = kindword == "single" ? -1 : static_cast<int>(kind);
+		auto const line{straight_near(at, {}, 3.0)};
+		if (line.tracks.empty())
+		{
+			WriteLog("SELFTEST connection: no straight at the start");
+			return selftest_result::handled;
+		}
+		m_node = line.tracks.front();
+		ui()->set_node(m_node);
+		m_cursor_override = at;
+		auto const started{start_switch_placement()};
+		m_cursor_override.reset();
+		if (false == started)
+		{
+			WriteLog("SELFTEST connection: not started, " + tool.status);
+			return selftest_result::handled;
+		}
+		tool.mouse = glm::dvec3{toward.x, tool.point.y, toward.z};
+		if (command == "connectionhold")
+		{
+			m_cursor_override = toward;
+			WriteLog("SELFTEST connectionhold: " + tool.status);
+			return selftest_result::handled;
+		}
+		connection::request request;
+		connection::result plan;
+		auto const valid{plan_connection(request, plan)};
+		WriteLog("SELFTEST connection " + kindword + ": " + (valid ? connection_readout(plan) : "invalid, " + plan.error));
+		for (auto const &entry : plan.switches)
+		{
+			auto const &start{entry.paths[0].points[segment_data::point::start]};
+			auto const &end{entry.paths[1].points[segment_data::point::end]};
+			WriteLog(format("SELFTEST connection switch on %d at %.3f, forward %d side %d%s: %.3f %.3f %.3f -> branch end %.3f %.3f %.3f", entry.line, entry.along, entry.forward, entry.side, entry.second ? " (second)" : "", start.x, start.y, start.z, end.x, end.y,
+			                end.z));
+		}
+		for (auto const &insert : plan.inserts)
+		{
+			auto const &start{insert.points[segment_data::point::start]};
+			auto const &end{insert.points[segment_data::point::end]};
+			WriteLog(format("SELFTEST connection insert %.3f %.3f %.3f -> %.3f %.3f %.3f, %.3f m, R %.1f", start.x, start.y, start.z, end.x, end.y, end.z, geometry::bezier{insert}.plan_length(), std::abs(insert.radius)));
+		}
+		if (command == "connectionplan" || false == valid)
+		{
+			tool.placing = false;
+			return selftest_result::handled;
+		}
+		insert_connection();
+		WriteLog("SELFTEST connection built: " + tool.status);
+		for (auto const &entry : switch_store::records())
+			if (entry.kind == "connection")
+			{
+				std::string parts;
+				for (auto const &part : entry.parts)
+					parts += ' ' + part;
+				WriteLog(format("SELFTEST connection record %s %s: spacing %.3f, insert %.3f, parts%s", entry.type.c_str(), entry.name.c_str(), entry.a, entry.b, parts.c_str()));
+			}
+		return selftest_result::handled;
+	}
+	if (command == "conecheck")
+	{
+		std::string name;
+		words >> name;
+		auto *track{simulation::Paths.find(name)};
+		if (track == nullptr || track->m_paths.size() < 2)
+		{
+			WriteLog("SELFTEST conecheck: no switch " + name);
+			return selftest_result::handled;
+		}
+		geometry::bezier const main{track->m_paths[0]};
+		geometry::bezier const other{track->m_paths[1]};
+		std::string text;
+		for (int i = 1; i <= 8; ++i)
+		{
+			auto const t{i * 0.125};
+			auto const point{other.point(t)};
+			double best{std::numeric_limits<double>::max()};
+			double along{0.0};
+			for (int k = 0; k <= 2000; ++k)
+				if (auto const distance{geometry::plan_distance(main.point(k / 2000.0), point)}; distance < best)
+				{
+					best = distance;
+					along = k / 2000.0;
+				}
+			auto const base{main.point(along)};
+			auto const direction{glm::normalize(geometry::plan_of(main.first(along)))};
+			auto const lateral{(point.x - base.x) * -direction.y + (point.z - base.z) * direction.x};
+			auto const &path{track->m_paths[0]};
+			auto const roll{glm::radians(path.rolls[0] + (path.rolls[1] - path.rolls[0]) * along)};
+			auto const tangent{main.first(along)};
+			auto const beyond{(point.x - base.x) * direction.x + (point.z - base.z) * direction.y};
+			auto const cone{base.y + beyond * tangent.y / glm::length(geometry::plan_of(tangent)) - lateral * std::tan(roll)};
+			text += format(" [t %.3f off %.3f dy %.4f]", t, lateral, point.y - cone);
+		}
+		WriteLog("SELFTEST conecheck " + name + ":" + text);
+		return selftest_result::handled;
+	}
+	if (command == "throw")
+	{
+		std::string name;
+		int state{0};
+		words >> name >> state;
+		auto *track{simulation::Paths.find(name)};
+		if (track != nullptr && track->eType == tt_Switch)
+		{
+			track->Switch(state, 0.f, 0.f);
+			// the blades go over at once, the editor doesn't run the animations of the switches
+			track->SwitchExtension->fOffset = track->SwitchExtension->fDesiredOffset;
+			track->RaAnimate();
+		}
+		WriteLog(format("SELFTEST throw %s %d%s", name.c_str(), state, track != nullptr && track->eType == tt_Switch ? "" : ": no such switch"));
+		return selftest_result::handled;
+	}
+	if (command == "switchdrive")
+	{
+		int index{-1};
+		int side{0};
+		words >> index >> side;
+		scan_switch_drives();
+		m_switch.drive = index;
+		m_switch.drive_side = side;
+		WriteLog("SELFTEST switchdrive: " + (index >= 0 && index < static_cast<int>(m_switch.drives.size()) ? m_switch.drives[index].name : std::string{"none"}));
+		return selftest_result::handled;
+	}
+	if (command == "drivechoice")
+	{
+		int index{-1};
+		int side{0};
+		words >> index >> side;
+		scan_switch_drives();
+		m_switch.drive = index;
+		m_switch.drive_side = side;
+		m_switch.status.clear();
+		auto *track{selected_track()};
+		if (track != nullptr && track->eType == tt_Switch && false == track->m_editorremoved)
+			apply_switch_drive_choice(*track);
+		WriteLog("SELFTEST drivechoice: " + (track != nullptr ? track->name() : std::string{"no switch"}) + ", " + m_switch.status);
+		return selftest_result::handled;
+	}
+	if (command == "drives")
+	{
+		std::string name;
+		words >> name;
+		scan_switch_drives();
+		std::string files;
+		for (auto const &standing : standing_templates([](std::string const &File) { return File.find("napedy/") != std::string::npos; }))
+			if (false == standing.values.empty() && standing.values[0] == name)
+			{
+				files += " " + standing.file;
+				for (std::size_t i = 1; i < standing.values.size(); ++i)
+					files += (i == 1 ? " (" : " ") + standing.values[i] + (i + 1 == standing.values.size() ? ")" : "");
+			}
+		for (scene::instance_handle handle = 1; handle <= scene::Layers.instance_count(); ++handle)
+			if (scene::Layers.tracked(handle) && scene::Layers.instance(handle).file != nullptr && scene::Layers.instance(handle).file->find("napedy") != std::string::npos)
+				files += format(" [%d %s removed %d dead %d]", static_cast<int>(handle), scene::Layers.instance(handle).file->c_str(), scene::Layers.instance(handle).removed ? 1 : 0, scene::Layers.instance(handle).dead ? 1 : 0);
+		WriteLog("SELFTEST drives " + name + ": chosen " + (m_switch.drive >= 0 ? m_switch.drives[m_switch.drive].name : std::string{"none"}) + ", side " + std::to_string(m_switch.drive_side) + ", standing" + files + ", steps " + std::to_string(m_history.size()));
+		return selftest_result::handled;
+	}
+	if (command == "driveflip")
+	{
+		std::string name;
+		words >> name;
+		auto *track{simulation::Paths.find(name)};
+		auto const done{track != nullptr && flip_switch_drive(*track)};
+		WriteLog("SELFTEST driveflip " + name + ": " + (done ? "done " : "failed ") + m_switch.status);
+		return selftest_result::handled;
+	}
+	if (command == "driveput" || command == "drivefamily")
+	{
+		std::string name;
+		int family{-1};
+		words >> name >> family;
+		auto *track{simulation::Paths.find(name)};
+		auto const done{track != nullptr && (command == "driveput" ? place_switch_drive(*track) : replace_switch_drive(*track, family, false))};
+		WriteLog("SELFTEST " + command + " " + name + ": " + (done ? "done " : "failed ") + m_switch.status);
+		return selftest_result::handled;
+	}
+	if (command == "drivetilt")
+	{
+		std::string name;
+		words >> name;
+		auto *model{simulation::Instances.find(name)};
+		auto *track{simulation::Paths.find(name.substr(0, name.find('_')))};
+		if (model == nullptr || track == nullptr)
+		{
+			WriteLog("SELFTEST drivetilt: no " + name);
+			return selftest_result::handled;
+		}
+		auto const &path{track->m_paths[0]};
+		auto const transform{glm::dmat3(model->rotation_scale())};
+		auto const across{transform * glm::dvec3{1.0, 0.0, 0.0}};
+		auto const forward{transform * glm::dvec3{0.0, 0.0, 1.0}};
+		auto const direction{glm::normalize(glm::dvec2{forward.x, forward.z})};
+		auto const lateral{across.x * -direction.y + across.z * direction.x};
+		auto const cone{-lateral * std::tan(glm::radians(static_cast<double>(path.rolls[0])))};
+		auto const control{path.points[segment_data::point::control1]};
+		auto const grade{control.y / std::hypot(control.x, control.z)};
+		WriteLog(format("SELFTEST drivetilt %s: angles %.3f %.3f %.3f, +x rises %.4f (cone %.4f), +z rises %.4f (grade %.4f), origin %.3f %.3f %.3f, points %.3f", name.c_str(), model->Angles().x, model->Angles().y, model->Angles().z, across.y, cone, forward.y, grade,
+		                model->location().x, model->location().y, model->location().z, path.points[segment_data::point::start].y));
+		return selftest_result::handled;
+	}
+	if (command == "switchplace" || command == "switchcurve" || command == "slipplace")
+	{
+		std::string label;
+		glm::dvec3 point{0.0};
+		int direction{1};
+		int side{1};
+		words >> label >> point.x >> point.z >> direction >> side;
+		std::replace(label.begin(), label.end(), '_', ' ');
+		auto &tool{m_switch};
+		tool.templates = editor_track::standard_switch_templates();
+		tool.collected = true;
+		tool.armed = -1;
+		for (int i = 0; i < static_cast<int>(tool.templates.size()); ++i)
+			if (tool.templates[i].label.rfind(label, 0) == 0)
+			{
+				tool.armed = i;
+				break;
+			}
+		TTrack *nearest{nullptr};
+		double distance{1e9};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+				continue;
+			auto const d{geometry::plan_distance(editor_track::point_at(*track, editor_track::nearest_parameter(*track, point)), point)};
+			if (d < distance)
+			{
+				distance = d;
+				nearest = track;
+			}
+		}
+		if (tool.armed < 0 || nearest == nullptr)
+		{
+			WriteLog("SELFTEST " + command + ": no template " + label + " or no path");
+			return selftest_result::handled;
+		}
+		tool.status.clear();
+		if (command == "switchcurve")
+		{
+			editor_track::curve curve;
+			editor_track::chain chain;
+			std::string error;
+			if (false == editor_track::find_curve(*nearest, m_straights.tolerance, m_route.design.norms.gauge, curve) || false == editor_track::find_chain(curve.from, curve.to, chain, error, true))
+			{
+				WriteLog("SELFTEST switchcurve: no curve");
+				return selftest_result::handled;
+			}
+			tool.frame = sample_chain(chain);
+			tool.frame_tracks = chain.tracks;
+			tool.curved = true;
+			tool.along = nearest_station(tool.frame, point);
+			insert_curved_switch(direction, side);
+		}
+		else
+		{
+			auto const line{editor_track::find_straight(*nearest, m_straights.tolerance)};
+			if (command == "slipplace")
+			{
+				WriteLog(format("SELFTEST slipplace: straight from %s, %zu paths, start %.3f %.3f, %.3f m", nearest->name().c_str(), line.tracks.size(), line.start.x, line.start.z, line.length));
+				insert_double_slip(line, point, tool.templates[tool.armed]);
+			}
+			else
+				insert_switch(line, std::clamp(line.along(point), 0.0, line.length), direction, side);
+		}
+		WriteLog("SELFTEST " + command + ": " + tool.status + " " + m_straights.status);
+		return selftest_result::handled;
+	}
+	if (command == "switchlink" || command == "branchlink")
+	{
+		std::string label;
+		glm::dvec3 point{0.0};
+		glm::dvec3 target{0.0};
+		if (command == "switchlink")
+			words >> label;
+		words >> point.x >> point.z >> target.x >> target.z;
+		std::replace(label.begin(), label.end(), '_', ' ');
+		auto const log_link = [&](editor_track::branch_link const &Link, std::string const &Reason) {
+			WriteLog(format("SELFTEST %s plan: valid %d, R %.1f m, before %.3f m, after %.3f m, trim %.3f m, shortfall %.3f m, %zu pieces%s", command.c_str(), Link.valid ? 1 : 0, Link.radius, Link.before, Link.after, Link.trim,
+			                Link.shortfall, Link.pieces.size(), Reason.empty() ? "" : (", " + Reason).c_str()));
+			for (auto const &piece : Link.pieces)
+			{
+				auto const &a{piece.points[segment_data::point::start]};
+				auto const &b{piece.points[segment_data::point::end]};
+				WriteLog(format("SELFTEST %s piece: %.3f %.3f %.3f -> %.3f %.3f %.3f, L %.3f m, R %.1f m", command.c_str(), a.x, a.y, a.z, b.x, b.y, b.z, geometry::bezier{piece}.plan_length(), static_cast<double>(piece.radius)));
+			}
+		};
+		if (command == "switchlink")
+		{
+			show_track_tab(track_tab::turnout);
+			auto &tool{m_switch};
+			tool.templates = editor_track::standard_switch_templates();
+			tool.collected = true;
+			tool.armed = -1;
+			tool.connection = -1;
+			for (int i = 0; i < static_cast<int>(tool.templates.size()); ++i)
+				if (tool.templates[i].label.rfind(label, 0) == 0)
+				{
+					tool.armed = i;
+					break;
+				}
+			TTrack *nearest{nullptr};
+			double distance{1e9};
+			for (auto *track : simulation::Paths.sequence())
+			{
+				if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+					continue;
+				auto const d{geometry::plan_distance(editor_track::point_at(*track, editor_track::nearest_parameter(*track, point)), point)};
+				if (d < distance)
+				{
+					distance = d;
+					nearest = track;
+				}
+			}
+			if (tool.armed < 0 || nearest == nullptr)
+			{
+				WriteLog("SELFTEST switchlink: no template " + label + " or no path");
+				return selftest_result::handled;
+			}
+			m_node = nearest;
+			ui()->set_node(m_node);
+			m_cursor_override = point;
+			if (false == start_switch_placement())
+			{
+				m_cursor_override.reset();
+				WriteLog("SELFTEST switchlink: not started, " + tool.status);
+				return selftest_result::handled;
+			}
+			tool.mouse = glm::dvec3{target.x, tool.point.y, target.z};
+			switch_link plan;
+			plan_switch_link(plan);
+			log_link(plan.link, plan.reason);
+			finish_switch_placement();
+			m_cursor_override.reset();
+			WriteLog("SELFTEST switchlink: " + tool.status);
+			return selftest_result::handled;
+		}
+		TTrack *own{nullptr};
+		for (auto *track : simulation::Paths.sequence())
+			if (track != nullptr && false == track->m_editorremoved && track->eType == tt_Switch && track->m_paths.size() == 2 && geometry::plan_distance(track->m_paths[1].points[segment_data::point::end], point) < 3.0)
+				own = track;
+		if (own == nullptr)
+		{
+			WriteLog("SELFTEST branchlink: no switch branch end there");
+			return selftest_result::handled;
+		}
+		editor_track::snap_target end;
+		end.track = own;
+		end.point = {1, editor_track::point_kind::end};
+		end.position = own->m_paths[1].points[segment_data::point::end];
+		if (false == start_extend(end))
+		{
+			WriteLog("SELFTEST branchlink: the branch end isn't free");
+			return selftest_result::handled;
+		}
+		m_extend.pressed = {-10000.f, -10000.f};
+		m_extend.mouse = glm::dvec3{target.x, m_extend.point.y, target.z};
+		m_extend.snap = editor_track::find_free_end(own, own->iCategoryFlag & 15, m_extend.mouse, 3.0, {own});
+		editor_track::branch_link link;
+		std::string reason;
+		plan_branch_link(link, reason);
+		log_link(link, reason);
+		finish_extend();
+		WriteLog(format("SELFTEST branchlink: switch now %.3f %.3f -> %.3f %.3f", own->m_paths[0].points[segment_data::point::start].x, own->m_paths[0].points[segment_data::point::start].z, own->m_paths[0].points[segment_data::point::end].x,
+		                own->m_paths[0].points[segment_data::point::end].z));
+		return selftest_result::handled;
+	}
+	if (command == "switchslide" || command == "switchreplace")
+	{
+		std::string name;
+		words >> name;
+		auto *track{simulation::Paths.find(name)};
+		if (track == nullptr || track->eType != tt_Switch || track->m_paths.size() < 2)
+		{
+			WriteLog("SELFTEST " + command + ": no switch " + name);
+			return selftest_result::handled;
+		}
+		if (command == "switchslide")
+		{
+			double distance{0.0};
+			words >> distance;
+			double low{0.0};
+			double high{0.0};
+			std::string reason;
+			auto const set{double_of(*track)};
+			double length{0.0};
+			auto const room{set.has_value() ? double_room(*set, low, high, length, reason) : switch_room(*track, low, high, reason)};
+			auto const done{slide_switch(*track, distance)};
+			WriteLog(format("SELFTEST switchslide %s %.3f: room %d %.3f .. %.3f, done %d, %s", name.c_str(), distance, room ? 1 : 0, low, high, done ? 1 : 0, m_switch.status.c_str()));
+			return selftest_result::handled;
+		}
+		std::string label;
+		int side{1};
+		words >> label >> side;
+		std::replace(label.begin(), label.end(), '_', ' ');
+		auto const templates{editor_track::standard_switch_templates()};
+		auto const found{std::find_if(templates.begin(), templates.end(), [&](editor_track::switch_template const &Template) { return Template.label.rfind(label, 0) == 0; })};
+		if (found == templates.end())
+		{
+			WriteLog("SELFTEST switchreplace: no template " + label);
+			return selftest_result::handled;
+		}
+		auto const set{double_of(*track)};
+		if (set.has_value())
+			track = set->first;
+		auto const &main{track->m_paths[0]};
+		auto const origin{main.points[segment_data::point::start]};
+		auto const chord{geometry::plan_of(main.points[segment_data::point::end] - origin)};
+		auto const length{glm::length(chord)};
+		auto paths{editor_track::place_switch(*found, origin, chord / length, side, (main.points[segment_data::point::end].y - origin.y) / length)};
+		std::string status;
+		auto const done{set.has_value() ? found->twofold() && paths.size() >= 5 && move_double_paths(*set, paths, status) : paths.size() >= 2 && move_switch_paths(*track, paths, status)};
+		if (done && set.has_value())
+		{
+			record_double(*set->first, *set->second, *found);
+			switch_store::follow();
+			records_to_history();
+			straight_refresh();
+		}
+		else if (done)
+		{
+			record_switch(*track, *found);
+			records_to_history();
+			straight_refresh();
+		}
+		WriteLog(format("SELFTEST switchreplace %s %s: done %d, %s", name.c_str(), found->label.c_str(), done ? 1 : 0, status.c_str()));
+		return selftest_result::handled;
+	}
+	if (command == "switchpieces" || command == "switchbreak")
+	{
+		double radius{0.0};
+		double ratio{0.0};
+		std::string name;
+		if (command == "switchpieces")
+			words >> radius >> ratio;
+		words >> name;
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Switch || track->m_paths.size() < 2 || track->SwitchExtension == nullptr)
+				continue;
+			if (false == name.empty() ? track->name() != name : track->m_paths[1].pieces.empty())
+				continue;
+			if (command == "switchbreak")
+			{
+				auto &pieces{track->m_paths[1].pieces};
+				if (pieces.size() < 2)
+					continue;
+				pieces[0].points[segment_data::point::end].x += 0.3;
+				editor_track::commit({track});
+				WriteLog(format("SELFTEST switchbreak %s: path 2 %.3f m, %zu pieces in use, %zu kept", track->name().c_str(), track->SwitchExtension->Segments[1]->GetLength(), track->SwitchExtension->Segments[1]->PieceCount(), pieces.size()));
+				return selftest_result::handled;
+			}
+			auto const &segment{*track->SwitchExtension->Segments[1]};
+			auto const &main{track->m_paths[0]};
+			auto const &branch{track->m_paths[1]};
+			auto const origin{segment.FastGetPoint(0.0)};
+			auto const plan{glm::normalize(geometry::plan_of(main.points[segment_data::point::end] - main.points[segment_data::point::start]))};
+			glm::dvec3 const along{plan.x, 0.0, plan.y};
+			auto const reach{branch.points[segment_data::point::end] - branch.points[segment_data::point::start]};
+			auto const hand{along.x * reach.z - along.z * reach.x > 0.0 ? 1.0 : -1.0};
+			auto const normal{glm::dvec3{-along.z, 0.0, along.x} * hand};
+			auto const centre{origin + normal * radius};
+			auto const angle{std::atan(1.0 / ratio)};
+			auto const arc{radius * angle};
+			auto const heading0{-std::atan2(along.x, along.z)};
+			glm::dvec3 position;
+			glm::vec3 rotation;
+			double worst{0.0};
+			for (int i = 0; i <= 10; ++i)
+			{
+				segment.RaPositionGet(arc * i / 10.0, position, rotation);
+				worst = std::max(worst, std::abs(geometry::plan_distance(position, centre) - radius));
+			}
+			segment.RaPositionGet(arc, position, rotation);
+			auto const expected{centre - normal * radius * std::cos(angle) + along * radius * std::sin(angle)};
+			auto const turn{std::abs(std::remainder(rotation.z - heading0, glm::two_pi<double>()))};
+			double low{1e9};
+			double high{-1e9};
+			for (int i = 0; i <= 10; ++i)
+			{
+				segment.RaPositionGet(arc + 0.05 + (segment.GetLength() - arc - 0.1) * i / 10.0, position, rotation);
+				low = std::min(low, static_cast<double>(rotation.z));
+				high = std::max(high, static_cast<double>(rotation.z));
+			}
+			segment.RaPositionGet(arc, position, rotation);
+			WriteLog(format("SELFTEST switchpieces %s: path 2 %.3f m in %zu pieces (%zu kept), arc %.3f m, arc end off %.4f m, turn there %.5f (angle %.5f), axis off the arc %.4f m, straight heading spread %.6f, end %.3f %.3f", track->name().c_str(),
+			                segment.GetLength(), segment.PieceCount(), branch.pieces.size(), arc, geometry::plan_distance(position, expected), turn, angle, worst, high - low, segment.FastGetPoint(1.0).x, segment.FastGetPoint(1.0).z));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "switchlinks")
+	{
+		auto const name_of = [](TTrack const *Track) { return Track == nullptr ? std::string{"-"} : Track->name().empty() ? std::string{"(noname)"} : Track->name(); };
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Switch || track->SwitchExtension == nullptr)
+				continue;
+			auto const &extension{*track->SwitchExtension};
+			WriteLog(format("SELFTEST switchlinks %s: prev %s / %s, next %s / %s, lengths %.3f / %.3f m", track->name().c_str(), name_of(extension.pPrevs[0]).c_str(), name_of(extension.pPrevs[1]).c_str(), name_of(extension.pNexts[0]).c_str(), name_of(extension.pNexts[1]).c_str(),
+			                extension.Segments[0]->GetLength(), extension.Segments[1]->GetLength()));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "switchtemplates")
+	{
+		for (auto const &entry : editor_track::standard_switch_templates())
+		{
+			if (entry.double_slip)
+				continue;
+			auto const paths{editor_track::place_switch(entry, glm::dvec3{0.0}, glm::dvec2{0.0, 1.0}, 1, 0.0)};
+			double gap{0.0};
+			double kink{0.0};
+			std::size_t pieces{0};
+			for (auto const &path : paths)
+			{
+				pieces += path.pieces.size();
+				for (std::size_t i = 0; i + 1 < path.pieces.size(); ++i)
+				{
+					auto const &one{path.pieces[i]};
+					auto const &two{path.pieces[i + 1]};
+					gap = std::max(gap, glm::distance(one.points[segment_data::point::end], two.points[segment_data::point::start]));
+					geometry::bezier const a{one};
+					geometry::bezier const b{two};
+					auto const ta{glm::normalize(geometry::plan_of(a.first(1.0)))};
+					auto const tb{glm::normalize(geometry::plan_of(b.first(0.0)))};
+					kink = std::max(kink, std::abs(geometry::signed_angle(ta, tb)));
+				}
+				if (false == path.pieces.empty())
+					gap = std::max({gap, glm::distance(path.pieces.front().points[segment_data::point::start], path.points[segment_data::point::start]), glm::distance(path.pieces.back().points[segment_data::point::end], path.points[segment_data::point::end])});
+			}
+			std::string ends;
+			for (auto const &path : paths)
+				ends += format(" (%.3f %.3f)", path.points[segment_data::point::end].x, path.points[segment_data::point::end].z);
+			std::string starts;
+			for (std::size_t i = 1; i < paths.size() && i <= 3; i += 2)
+			{
+				geometry::bezier const first{paths[i].pieces.empty() ? paths[i] : paths[i].pieces.front()};
+				auto const tangent{glm::normalize(geometry::plan_of(first.first(0.0)))};
+				starts += format(" %.4f", glm::degrees(std::abs(geometry::signed_angle(glm::dvec2{0.0, 1.0}, tangent))));
+			}
+			WriteLog(format("SELFTEST switchtemplate %s: %s%s, L %.3f 1:%.3f R %.1f a %.3f b %.3f stagger %.3f, %zu paths, %zu pieces, gap %.6f m, kink %.6f deg, start deg%s, ends%s", entry.label.c_str(), entry.type.c_str(), entry.own ? " own" : "", entry.length, entry.ratio, entry.radius, entry.a, entry.b, entry.stagger, paths.size(), pieces, gap,
+			                glm::degrees(kink), starts.c_str(), ends.c_str()));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "switches")
+	{
+		for (auto const &entry : switch_store::records())
+		{
+			std::string parts;
+			for (auto const &part : entry.parts)
+				parts += part + " ";
+			WriteLog(format("SELFTEST switch record %s %s: %s, R %.3f 1:%.3f hand %c a %.3f b %.3f main R %.3f, branch R %.3f, km %s, number %s, %s, parts %s", entry.kind.c_str(), entry.name.c_str(), switch_store::label(entry).c_str(), entry.radius, entry.ratio, entry.hand, entry.a,
+			                entry.b, entry.main_radius, switch_store::branch_radius(entry), entry.km.has_value() ? format("%.3f", *entry.km / 1000.0).c_str() : "-", entry.number.c_str(), entry.source.c_str(), parts.c_str()));
+		}
+		speed_check::options options;
+		options.norms = m_route.design.norms;
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Switch || track->m_paths.size() < 2)
+				continue;
+			auto const known{switch_store::of(*track)};
+			geometry::bezier const branch{track->m_paths[1]};
+			auto const first{branch.first(0.3)};
+			auto const second{branch.second(0.3)};
+			auto const planar{std::abs(first.x * second.z - first.z * second.x) / std::pow(first.x * first.x + first.z * first.z, 1.5)};
+			auto const verdict{speed_check::check(*track, 1, options)};
+			WriteLog(format("SELFTEST switch %s: %s, branch R at 0.3 %.3f, path R %.3f, branch speed %.1f km/h at R %.1f", track->name().c_str(), known.has_value() ? switch_store::label(*known).c_str() : "no record", planar > 1e-9 ? 1.0 / planar : 0.0,
+			                track->m_paths[1].radius, verdict.safe, verdict.radius));
+		}
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftestterrain.cpp

@@ -0,0 +1,282 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_terrain(std::string const &command, std::istringstream &words)
+{
+	if (command == "orthophoto")
+	{
+		auto config{m_orthophoto.settings()};
+		int fit{1};
+		int inscene{0};
+		words >> config.north >> config.east >> config.radius >> fit >> inscene;
+		config.drape = fit != 0;
+		config.in_scene = inscene != 0;
+		m_orthophoto.settings(config);
+		m_orthophoto.enabled(true);
+		WriteLog(format("SELFTEST orthophoto at %.0f %.0f, radius %d, %s%s", config.north, config.east, config.radius, config.drape ? "fitted" : "flat", config.in_scene ? ", in the scene" : ""));
+		return selftest_result::handled;
+	}
+	if (command == "terrainmode")
+	{
+		m_terrain_open = true;
+		WriteLog("SELFTEST terrainmode");
+		return selftest_result::handled;
+	}
+	if (command == "terrainsculpt" || command == "terrainpaint" || command == "terrainlevel")
+	{
+		double x{0.0};
+		double z{0.0};
+		double radius{10.0};
+		double value{1.0};
+		int mode{0};
+		words >> x >> z >> radius >> value >> mode;
+		auto const changed{command == "terrainsculpt" ? m_streamer.sculpt(x, z, radius, value)
+		                   : command == "terrainlevel" ? m_streamer.level(x, z, radius, value, 1.0, mode)
+		                                               : m_streamer.paint(x, z, radius, 1.0, static_cast<std::uint16_t>(value))};
+		forget_ground();
+		WriteLog(format("SELFTEST %s %.1f %.1f: %s", command.c_str(), x, z, changed ? "changed" : "nothing changed"));
+		return selftest_result::handled;
+	}
+	if (command == "terrainmodifier")
+	{
+		heightmap::modifier modifier;
+		heightmap::corridor_point a, b;
+		double formation{0.0};
+		double halfwidth{3.5};
+		words >> modifier.name >> a.position.x >> a.position.y >> b.position.x >> b.position.y >> formation >> halfwidth;
+		b.formation = formation;
+		a.formation = b.formation;
+		b.half_width = halfwidth;
+		a.half_width = b.half_width;
+		modifier.points = {a, b};
+		m_streamer.modifier(std::move(modifier));
+		forget_ground();
+		WriteLog(format("SELFTEST terrainmodifier: %zu modifiers", m_streamer.modifiers().size()));
+		return selftest_result::handled;
+	}
+	if (command == "terrainfill")
+	{
+		int layer{0};
+		words >> layer >> m_paint_feather >> m_paint_rotation;
+		m_terrain_layer = layer;
+		m_paint_outline.clear();
+		double x;
+		double z;
+		while (words >> x >> z)
+			m_paint_outline.emplace_back(x, 0.0, z);
+		fill_terrain_area();
+		std::string palette;
+		for (auto const &entry : m_streamer.manifest().layers)
+			palette += format(" [%s %.1f m %.0f deg]", entry.material.c_str(), entry.size, entry.rotation);
+		WriteLog("SELFTEST terrainfill: " + m_terrain_status + ", palette" + palette);
+		return selftest_result::handled;
+	}
+	if (command == "terrainturn")
+	{
+		int layer{0};
+		float degrees{0.f};
+		words >> layer >> degrees;
+		m_streamer.layer_rotation(static_cast<std::uint16_t>(layer), degrees);
+		WriteLog(format("SELFTEST terrainturn %d: %.1f deg", layer, m_streamer.manifest().layers.at(layer).rotation));
+		return selftest_result::handled;
+	}
+	if (command == "terraintouchup")
+	{
+		int state{1};
+		words >> state;
+		m_streamer.touch_up(state != 0);
+		WriteLog(format("SELFTEST terraintouchup %d", state));
+		return selftest_result::handled;
+	}
+	if (command == "terrainrestore")
+	{
+		double x{0.0};
+		double z{0.0};
+		double radius{10.0};
+		words >> x >> z >> radius;
+		auto const changed{m_streamer.restore_stitching(x, z, radius, 1.0)};
+		forget_ground();
+		WriteLog(format("SELFTEST terrainrestore %.1f %.1f: %s, touch-ups left %zu", x, z, changed ? "changed" : "nothing changed", m_streamer.touched_up()));
+		return selftest_result::handled;
+	}
+	if (command == "terrainbake")
+	{
+		std::string name;
+		words >> name;
+		auto const baked{m_streamer.bake_modifier(name)};
+		forget_ground();
+		WriteLog(format("SELFTEST terrainbake %s: %s, %zu modifiers left", name.c_str(), baked ? "baked" : "not found", m_streamer.modifiers().size()));
+		return selftest_result::handled;
+	}
+	if (command == "terrainselect")
+	{
+		int cx{0};
+		int cz{0};
+		std::string add;
+		words >> cx >> cz >> add;
+		if (add != "add")
+			m_terrain_selection.clear();
+		if (m_streamer.exists({cx, cz}))
+			m_terrain_selection.insert({cx, cz});
+		WriteLog(format("SELFTEST terrainselect: %zu selected", m_terrain_selection.size()));
+		return selftest_result::handled;
+	}
+	if (command == "terrainresolution")
+	{
+		float spacing{1.f};
+		int paint{1};
+		words >> spacing >> paint;
+		m_terrain_convert_spacing = heightmap::valid_spacing(spacing);
+		m_terrain_convert_paint = paint != 0;
+		convert_selected_chunks();
+		WriteLog("SELFTEST terrainresolution: " + m_terrain_status);
+		return selftest_result::handled;
+	}
+	if (command == "terrainwater" || command == "terrainwaterdefault")
+	{
+		if (command == "terrainwaterdefault")
+		{
+			std::string material;
+			words >> material;
+			m_streamer.water_material(material);
+		}
+		else
+		{
+			std::size_t index{0};
+			std::string material;
+			float size{0.f};
+			words >> index >> material >> size;
+			auto water{m_streamer.water()};
+			if (index < water.size())
+			{
+				water[index].material = material == "-" ? std::string{} : material;
+				water[index].size = size;
+				m_streamer.water(std::move(water));
+			}
+		}
+		std::string list;
+		for (auto const &body : m_streamer.water())
+			list += format(" [%s: %s, %.1f m]", body.name.c_str(), body.material.empty() ? "default" : body.material.c_str(), body.size);
+		WriteLog("SELFTEST " + command + ": default " + m_streamer.manifest().water_material + list);
+		return selftest_result::handled;
+	}
+	if (command == "terrainadd")
+	{
+		int count{1};
+		float spacing{m_terrain_spacing};
+		words >> count >> spacing;
+		m_terrain_spacing = heightmap::valid_spacing(spacing);
+		add_chunks_around(std::clamp(count, 1, 8));
+		WriteLog("SELFTEST terrainadd: " + m_terrain_status);
+		return selftest_result::handled;
+	}
+	if (command == "terrainprobe")
+	{
+		double x{0.0};
+		double z{0.0};
+		double height{0.0};
+		words >> x >> z;
+		auto const *chunk{m_streamer.terrain_at(x, z)};
+		std::string materials;
+		if (chunk != nullptr)
+			for (std::size_t slot = 0; slot < std::max<std::size_t>(1, chunk->data().layer_count()); ++slot)
+			{
+				auto const layer{chunk->data().layers[slot]};
+				auto const &palette{m_streamer.manifest().layers};
+				materials += (layer < palette.size() ? palette[layer].material : std::string{"?"}) + " ";
+			}
+		auto const found{m_streamer.height_at(x, z, height)};
+		std::string grid;
+		if (chunk != nullptr)
+		{
+			auto const &data{chunk->data()};
+			double base{0.0};
+			double adjust{0.0};
+			if (false == data.base.empty())
+				base = data.height_in(data.base, x, z);
+			if (false == data.adjust.empty())
+				adjust = data.height_in(data.adjust, x, z);
+			grid = format(", spacing %.1f, paint %d, base %s %.3f, touch-up %.3f", data.spacing(), data.paint, data.base.empty() ? "none" : "", base, adjust);
+			if (data.paint > 0)
+			{
+				// weights at the paint sample nearest the point
+				auto const corner{data.corner()};
+				auto const ix{static_cast<int>(std::lround((x - corner.x) / heightmap::chunk_size * data.paint))};
+				auto const iz{static_cast<int>(std::lround((z - corner.y) / heightmap::chunk_size * data.paint))};
+				grid += ", weights";
+				for (std::size_t slot = 0; slot < data.layer_count(); ++slot)
+					grid += format(" %d", data.weight(slot, std::clamp(ix, 0, data.paint), std::clamp(iz, 0, data.paint)));
+			}
+		}
+		WriteLog(format("SELFTEST terrainprobe %.1f %.1f: %s %.3f, %zu chunks, materials %s%s", x, z, found ? "height" : "no terrain", height, m_streamer.resident(), materials.c_str(), grid.c_str()));
+		return selftest_result::handled;
+	}
+	if (command == "terrainconvert")
+	{
+		load_ground_files();
+		for (auto const &source : m_ground_conversion.files)
+		{
+			glm::dvec3 low{1e30};
+			glm::dvec3 high{-1e30};
+			for (auto index = source.first; index < source.first + source.count; ++index)
+				for (auto const &vertex : m_ground_conversion.triangles[index])
+				{
+					low = glm::min(low, vertex);
+					high = glm::max(high, vertex);
+				}
+			WriteLog("SELFTEST terrain file " + source.file + (source.text ? " (text): " : " (binary): ") + source.message +
+			         format(", from %.1f %.1f %.1f to %.1f %.1f %.1f", low.x, low.y, low.z, high.x, high.y, high.z));
+		}
+		m_ground_conversion.status = convert_ground();
+		WriteLog("SELFTEST terrainconvert: " + m_ground_conversion.status);
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}

application/editormodeselftesttrack.cpp

@@ -0,0 +1,558 @@
+/*
+This Source Code Form is subject to the
+terms of the Mozilla Public License, v.
+2.0. If a copy of the MPL was not
+distributed with this file, You can
+obtain one at
+http://mozilla.org/MPL/2.0/.
+*/
+
+#include "stdafx.h"
+#include "application/editormode.h"
+#include "editor/editorSettings.hpp"
+#include "editor/editorGeometry.hpp"
+#include "application/application.h"
+#include "application/editoruilayer.h"
+#include "application/editorprojection.h"
+
+#include "simulation/simulation.h"
+#include "simulation/simulationtime.h"
+#include "scene/scenelayers.h"
+#include "utilities/Globals.h"
+#include "utilities/Logs.h"
+#include "world/Track.h"
+#include "world/TrackRails.h"
+#include "world/MemCell.h"
+#include "world/Event.h"
+#include "vehicle/DynObj.h"
+#include "model/AnimModel.h"
+#include "model/Model3d.h"
+#include "rendering/renderer.h"
+#include "world/Sweep.h"
+#include "input/keyboardinput.h"
+#include "launcher/textures_scanner.h"
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include <algorithm>
+#include "editor/editorFormat.hpp"
+#include "editor/editorAlignmentStore.hpp"
+#include "editor/editorSwitchStore.hpp"
+#include "scene/sceneterrain.h"
+#include "editor/editorSpeed.hpp"
+
+#include <chrono>
+#include <cstdint>
+#include <cstdlib>
+#include <fstream>
+#include <map>
+#include <sstream>
+#include "application/editormodeselftest.h"
+
+editor_mode::selftest_result editor_mode::selftest_track(std::string const &command, std::istringstream &words)
+{
+	if (command == "probe")
+	{
+		// edge of the last laid model as it was made: its distance from the axis and the height of its top over the rail head
+		std::string name;
+		double step{20.0};
+		words >> name >> step;
+		if (name == "-")
+			name.clear();
+		auto *sweep{name.empty() ? m_sweep.edited : simulation::Sweeps.find(name)};
+		if (sweep == nullptr)
+		{
+			WriteLog("SELFTEST probe: nothing laid");
+			return selftest_result::handled;
+		}
+		auto const &definition{sweep->definition()};
+		double const sign{definition.lateral >= 0.0 ? 1.0 : -1.0};
+		struct bin
+		{
+			double edge{std::numeric_limits<double>::max()};
+			std::vector<std::pair<double, double>> points; // lateral, height over the axis
+		};
+		std::map<int, bin> bins;
+		for (auto const &shape : sweep->create_shapes())
+			for (auto const &vertex : shape.data().vertices)
+			{
+				double lateral;
+				auto const station{sweep->project(vertex.position, lateral)};
+				if (lateral * sign <= 0.0)
+					continue;
+				auto const axis{sweep->frame_at(station)};
+				auto &entry{bins[static_cast<int>(std::floor(station / step))]};
+				entry.edge = std::min(entry.edge, std::abs(lateral));
+				entry.points.emplace_back(std::abs(lateral), vertex.position.y - axis.position.y);
+			}
+		WriteLog(format("SELFTEST probe %s: %zu stretches with the model, %.1f - %.1f m of %.1f m", sweep->name().c_str(), bins.size(), sweep->start(), sweep->end(), sweep->length()));
+		for (auto const &[index, entry] : bins)
+		{
+			auto const station{(index + 0.5) * step};
+			if (station < sweep->start() || station > sweep->end())
+				continue;
+			double top{-1000.0};
+			for (auto const &point : entry.points)
+				if (point.first < entry.edge + 0.15)
+					top = std::max(top, point.second);
+			auto const at{sweep->frame_at(station)};
+			auto const head{0.18 + sweep_node::rail_head(at.roll, definition.lateral)};
+			WriteLog(format("SELFTEST probe %s at %.0f m: edge %.3f m from the axis, its top %.3f m over the rail head (cant %.1f deg, gauge widening %.3f m, cant part %.3f m)", sweep->name().c_str(), station, entry.edge, top - head, at.roll,
+			                at.widening[definition.lateral >= 0.0 ? 1 : 0], std::max(0.0, at.cant[definition.lateral >= 0.0 ? 1 : 0])));
+		}
+		return selftest_result::handled;
+	}
+	if (command == "profile")
+	{
+		std::string name;
+		double station{0.0};
+		words >> name >> station;
+		auto *sweep{simulation::Sweeps.find(name)};
+		if (sweep == nullptr)
+		{
+			WriteLog("SELFTEST profile: no such sweep");
+			return selftest_result::handled;
+		}
+		auto const &definition{sweep->definition()};
+		std::map<int, std::pair<double, double>> columns;
+		for (auto const &shape : sweep->create_shapes())
+			for (auto const &vertex : shape.data().vertices)
+			{
+				double lateral;
+				auto const at{sweep->project(vertex.position, lateral)};
+				if (std::abs(at - station) > 1.0)
+					continue;
+				auto const axis{sweep->frame_at(at)};
+				auto const height{vertex.position.y - axis.position.y - 0.18 - sweep_node::rail_head(axis.roll, definition.lateral)};
+				auto &column{columns.try_emplace(static_cast<int>(std::floor(lateral / 0.1)), std::numeric_limits<double>::max(), -std::numeric_limits<double>::max()).first->second};
+				column.first = std::min(column.first, height);
+				column.second = std::max(column.second, height);
+			}
+		std::string text;
+		for (auto const &[index, column] : columns)
+			text += format(" [%.1f %.2f..%.2f]", index * 0.1, column.first, column.second);
+		WriteLog(format("SELFTEST profile %s at %.0f m:", name.c_str(), station) + text);
+		return selftest_result::handled;
+	}
+	if (command == "tracks")
+	{
+		int tab{0};
+		words >> tab;
+		show_track_tab(track_tab::lineside);
+		m_sweep.expand = tab == 0;
+		m_hekto.expand = tab == 1;
+		m_fouling.expand = tab == 2;
+		m_parallel.expand = tab == 3;
+		m_vehicle.expand = tab == 4;
+		return selftest_result::handled;
+	}
+	if (command == "curve")
+	{
+		sweep_curve();
+		for (auto const &piece : m_sweep.curve)
+		{
+			auto const &a{piece.points[segment_data::point::start]};
+			auto const &b{piece.points[segment_data::point::end]};
+			WriteLog(format("SELFTEST curve piece %.1f %.1f -> %.1f %.1f", a.x, a.z, b.x, b.z));
+		}
+		if (false == m_sweep.outline.empty())
+			WriteLog(format("SELFTEST curve outline %zu points, %.1f %.1f -> %.1f %.1f, %.1f m", m_sweep.outline.size(), m_sweep.outline.front().x, m_sweep.outline.front().z, m_sweep.outline.back().x, m_sweep.outline.back().z, m_sweep.curve_length));
+		return selftest_result::handled;
+	}
+	if (command == "lay")
+	{
+		std::string name;
+		std::string side;
+		words >> name >> side;
+		auto *track{simulation::Paths.find(name)};
+		if (track == nullptr || track->m_paths.empty())
+		{
+			WriteLog("SELFTEST lay: no track " + name);
+			return selftest_result::pause;
+		}
+		auto const &path{track->m_paths.front()};
+		auto const atend{side == "end"};
+		editor_track::snap_target start;
+		start.track = track;
+		start.point = {0, atend ? editor_track::point_kind::end : editor_track::point_kind::start};
+		start.position = path.points[atend ? segment_data::point::end : segment_data::point::start];
+		auto const &control{path.points[atend ? segment_data::point::control2 : segment_data::point::control1]};
+		start.direction = glm::normalize(control != glm::dvec3{} ? control : path.points[atend ? segment_data::point::start : segment_data::point::end] - start.position);
+		m_lay.points = {start.position};
+		m_lay.start = start;
+		for (glm::dvec3 point{0.0, start.position.y, 0.0}; words >> point.x >> point.z;)
+			m_lay.points.push_back(point);
+		lay_finish({});
+		WriteLog("SELFTEST lay: " + m_lay.status);
+		return selftest_result::handled;
+	}
+	if (command == "analyse")
+	{
+		std::string name;
+		words >> name;
+		editor_track::curve curve;
+		if (auto *track{simulation::Paths.find(name)}; track != nullptr && editor_track::find_curve(*track, m_straights.tolerance, m_route.design.norms.gauge, curve))
+		{
+			std::string arcs;
+			for (auto const &arc : curve.arcs)
+				arcs += format(" R%.0f/%.1fdeg/after %.1fm", arc.radius, glm::degrees(arc.turn), arc.transition);
+			WriteLog(format("SELFTEST analyse %s: R %.0f, compound %d, in %.1f m, out %.1f m, turn %.1f deg,", name.c_str(), curve.radius, curve.compound ? 1 : 0, curve.transition_in, curve.transition_out, glm::degrees(curve.turn)) + arcs);
+		}
+		else
+			WriteLog("SELFTEST analyse " + name + ": no curve");
+		return selftest_result::handled;
+	}
+	if (command == "route")
+	{
+		glm::dvec3 point{0.0};
+		int single{1};
+		words >> point.x >> point.z >> single;
+		TTrack *nearest{nullptr};
+		double distance{1e9};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+				continue;
+			auto const d{geometry::plan_distance(editor_track::point_at(*track, editor_track::nearest_parameter(*track, point)), point)};
+			if (d < distance)
+			{
+				distance = d;
+				nearest = track;
+			}
+		}
+		m_track_tab = track_tab::route;
+		m_route.single = (single != 0);
+		auto const loaded{nearest != nullptr && route_load(*nearest)};
+		WriteLog(format("SELFTEST route: %s from %s, %zu paths, %.3f m, %zu vertices, %d from the design, km %.3f, departed %d by %.3f m, valid %d", loaded ? "loaded" : "failed", nearest != nullptr ? nearest->name().c_str() : "-",
+		                m_route.chain.tracks.size(), m_route.chain.length, m_route.design.vertices.size(), m_route.designed, m_route.origin / 1000.0, m_route.departed, m_route.departure, m_route.result.valid ? 1 : 0));
+		WriteLog("SELFTEST route status: " + m_route.status + " " + m_route.error);
+		for (std::size_t i = 0; i < m_route.design.vertices.size(); ++i)
+		{
+			auto const &v{m_route.design.vertices[i]};
+			auto text{format("SELFTEST route vertex %zu: at %.3f %.3f offset %.3f R %.3f L %.3f / %.3f cant %.1f compound %d share %.4f", i, v.position.x, v.position.y, v.offset, v.radius, v.transition_in, v.transition_out, v.cant, v.compound ? 1 : 0, v.share)};
+			for (auto const &arc : v.arcs)
+				text += format(" [R %.3f L %.3f share %.4f]", arc.radius, arc.transition, arc.share);
+			WriteLog(text);
+		}
+		return selftest_result::handled;
+	}
+	if (command == "routevertex" || command == "routearc" || command == "routeshare")
+	{
+		int index{0};
+		words >> index;
+		if (index < 0 || index >= static_cast<int>(m_route.design.vertices.size()))
+		{
+			WriteLog("SELFTEST " + command + ": no vertex " + std::to_string(index));
+			return selftest_result::handled;
+		}
+		auto &vertex{m_route.design.vertices[index]};
+		if (command == "routevertex")
+			words >> vertex.radius >> vertex.transition_in >> vertex.transition_out >> vertex.cant;
+		else if (command == "routeshare")
+			words >> vertex.share;
+		else
+		{
+			alignment::compound_arc arc;
+			words >> arc.radius >> arc.transition >> arc.share;
+			vertex.compound = true;
+			vertex.arcs.push_back(arc);
+		}
+		route_update();
+		std::string errors;
+		for (auto const &error : m_route.result.errors)
+			errors += " " + error;
+		WriteLog(format("SELFTEST %s: valid %d, %zu elements, extension %.3f / %.3f", command.c_str(), m_route.result.valid ? 1 : 0, m_route.result.elements.size(), m_route.result.start_extension, m_route.result.end_extension) + errors);
+		return selftest_result::handled;
+	}
+	if (command == "routekm")
+	{
+		double km{0.0};
+		words >> km;
+		m_route.origin = km * 1000.0;
+		return selftest_result::handled;
+	}
+	if (command == "routeapply" || command == "routetake")
+	{
+		if (command == "routeapply")
+			route_apply();
+		else
+			route_take_stored(m_route.departed);
+		WriteLog("SELFTEST " + command + ": " + m_route.status + " " + m_route.error);
+		return selftest_result::handled;
+	}
+	if (command == "digitizeall")
+	{
+		digitize_all();
+		WriteLog(format("SELFTEST digitizeall: %zu alignments", alignment_store::records().size()));
+		return selftest_result::handled;
+	}
+	if (command == "alignments")
+	{
+		auto const &records{alignment_store::records()};
+		for (std::size_t r = 0; r < records.size(); ++r)
+		{
+			auto const &entry{records[r]};
+			WriteLog(format("SELFTEST alignment %zu in %s: km %.3f, %zu vertices, %zu elements, consistent %d, length %.3f", r, scene::Layers.layer(entry.layer).name.c_str(), entry.origin / 1000.0, entry.design.vertices.size(), entry.elements.size(), entry.consistent ? 1 : 0, entry.result.length));
+			for (auto const &e : entry.elements)
+				WriteLog(format("SELFTEST   element %s vertex %d km %.3f L %.3f R %.3f -> %.3f cant %.1f", e.kind.c_str(), e.vertex, (entry.origin + e.chainage) / 1000.0, e.length, e.radius_start, e.radius_end, e.cant));
+		}
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+				continue;
+			auto const found{alignment_store::on_track(*track)};
+			std::string text{"SELFTEST   path " + track->name() + ": "};
+			if (false == found.has_value())
+			{
+				auto const closest{alignment_store::at(geometry::bezier{track->m_paths.front()}.point(0.5), 1000.0)};
+				text += closest.has_value() ? format("off the alignments, %.3f m from alignment %d", closest->offset, closest->record) : std::string{"off the alignments"};
+			}
+			else
+			{
+				auto const e{alignment_store::describe(records[found->record].result.elements[found->element])};
+				text += format("alignment %d element %d %s R %.3f -> %.3f, offset %.4f", found->record, found->element, e.kind.c_str(), e.radius_start, e.radius_end, found->offset);
+			}
+			editor_track::curve curve;
+			if (editor_track::find_curve(*track, m_straights.tolerance, m_route.design.norms.gauge, curve))
+				text += format(" | curve R %.3f L %.3f / %.3f cant %.1f compound %d arcs %zu %s", curve.radius, curve.transition_in, curve.transition_out, curve.cant, curve.compound ? 1 : 0, curve.arcs.size(), curve.designed.has_value() ? "designed" : "recognized");
+			WriteLog(text);
+		}
+		return selftest_result::handled;
+	}
+	if (command == "vprofile")
+	{
+		std::string from;
+		std::string to;
+		words >> from >> to;
+		auto *first{simulation::Paths.find(from)};
+		auto *last{simulation::Paths.find(to)};
+		if (first == nullptr || last == nullptr)
+		{
+			WriteLog("SELFTEST vprofile: no such paths");
+			return selftest_result::handled;
+		}
+		m_profile.origin = 0.0;
+		profile_open(first, last);
+		WriteLog(format("SELFTEST vprofile: %zu spans, %.3f m, km of the start %.3f", m_profile.route.spans.size(), m_profile.route.length, m_profile.origin / 1000.0));
+		for (auto const &zone : m_profile.context.switches)
+			WriteLog(format("SELFTEST vprofile zone %.3f %.3f %s", zone.from, zone.to, zone.name.c_str()));
+		return selftest_result::handled;
+	}
+	if (command == "vprofileapply")
+	{
+		// a plain grade line from the height of the start of the open route, applied to it
+		double grade{0.0};
+		words >> grade;
+		auto &state{m_profile};
+		if (state.samples.empty())
+		{
+			WriteLog("SELFTEST vprofileapply: no route open");
+			return selftest_result::handled;
+		}
+		auto const start{state.samples.front().position.y};
+		state.line.points = {{0.0, start, 0.0, false}, {state.route.length, start + grade / 1000.0 * state.route.length, 0.0, false}};
+		state.line.join_start = false;
+		state.line.join_end = false;
+		profile_check();
+		profile_apply();
+		WriteLog("SELFTEST vprofileapply: " + state.status + " " + state.error);
+		for (auto const &span : state.route.spans)
+		{
+			if (span.track->eType != tt_Switch || span.track->SwitchExtension == nullptr)
+				continue;
+			for (std::size_t i = 0; i < span.track->m_paths.size() && i < 2; ++i)
+			{
+				auto const &path{span.track->m_paths[i]};
+				WriteLog(format("SELFTEST   switch %s path %zu%s: %zu pieces kept, %zu in use, ends %.3f %.3f", span.track->name().c_str(), i + 1, static_cast<int>(i) == span.path ? " (route)" : "", path.pieces.size(), span.track->SwitchExtension->Segments[i]->PieceCount(), path.points[segment_data::point::start].y, path.points[segment_data::point::end].y));
+			}
+		}
+		return selftest_result::handled;
+	}
+	if (command == "backwardcurve")
+	{
+		std::string name;
+		words >> name;
+		auto *track{simulation::Paths.find(name)};
+		editor_track::curve curve;
+		editor_track::chain chain;
+		std::string error;
+		if (track == nullptr || false == editor_track::find_curve(*track, m_straights.tolerance, m_route.design.norms.gauge, curve) || false == editor_track::find_chain(curve.from, curve.to, chain, error, true))
+		{
+			WriteLog("SELFTEST backwardcurve: no curve at " + name);
+			return selftest_result::handled;
+		}
+		std::vector<std::pair<TTrack *, bool>> run;
+		for (std::size_t i = chain.tracks.size(); i > 0; --i)
+			run.emplace_back(chain.tracks[i - 1], false == chain.forward[i - 1]);
+		editor_track::curve backward;
+		editor_track::analyse_curve(run, m_route.design.norms.gauge, backward);
+		auto text{format("SELFTEST backwardcurve: %zu paths, R %.3f L %.3f / %.3f cant %.1f compound %d %s", run.size(), backward.radius, backward.transition_in, backward.transition_out, backward.cant, backward.compound ? 1 : 0, backward.designed.has_value() ? "designed" : "recognized")};
+		for (auto const &arc : backward.arcs)
+			text += format(" [R %.3f turn %.4f L %.3f]", arc.radius, arc.turn, arc.transition);
+		WriteLog(text);
+		return selftest_result::handled;
+	}
+	if (command == "deletetrack" || command == "deletekind")
+	{
+		std::string name;
+		words >> name;
+		if (command == "deletetrack" && name.empty())
+		{
+			delete_selected_track();
+			WriteLog("SELFTEST deletetrack");
+			return selftest_result::handled;
+		}
+		TTrack *chosen{nullptr};
+		if (command == "deletetrack")
+			chosen = simulation::Paths.find(name);
+		else
+			for (auto *track : simulation::Paths.sequence())
+			{
+				if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+					continue;
+				auto const found{alignment_store::on_track(*track)};
+				if (found.has_value() && alignment_store::describe(alignment_store::records()[found->record].result.elements[found->element]).kind == name)
+				{
+					chosen = track;
+					break;
+				}
+			}
+		if (chosen == nullptr || chosen->m_editorremoved)
+		{
+			WriteLog("SELFTEST " + command + ": no path " + name);
+			return selftest_result::handled;
+		}
+		m_node = chosen;
+		ui()->set_node(m_node);
+		auto const deleted{chosen->name()};
+		delete_selected_track();
+		WriteLog("SELFTEST " + command + ": " + deleted + " deleted");
+		return selftest_result::handled;
+	}
+	if (command == "btfcheck")
+	{
+		std::string name;
+		words >> name;
+		auto const textfile{Global.asCurrentSceneryPath + name + ".txtf"};
+		auto const binaryfile{Global.asCurrentSceneryPath + name + ".btf"};
+		auto const written{scene::terrain_file::prepare(textfile, binaryfile) == scene::terrain_file::state::binary};
+		auto const kept{scene::terrain_file::extra(binaryfile)};
+		WriteLog(format("SELFTEST btfcheck: binary %d, %zu bytes of the editor lines kept", written ? 1 : 0, kept.size()));
+		std::istringstream lines{kept};
+		std::string line;
+		while (std::getline(lines, line))
+			WriteLog("SELFTEST btf kept: " + line);
+		return selftest_result::handled;
+	}
+	if (command == "pathsnear")
+	{
+		glm::dvec3 point{0.0};
+		double radius{100.0};
+		words >> point.x >> point.z >> radius;
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->m_paths.empty())
+				continue;
+			for (std::size_t i = 0; i < track->m_paths.size(); ++i)
+			{
+				auto const &path{track->m_paths[i]};
+				auto const &a{path.points[segment_data::point::start]};
+				auto const &b{path.points[segment_data::point::end]};
+				if (geometry::plan_distance(a, point) > radius && geometry::plan_distance(b, point) > radius)
+					continue;
+				auto const &c1{path.points[segment_data::point::control1]};
+				auto const &c2{path.points[segment_data::point::control2]};
+				WriteLog(format("SELFTEST path %s/%zu %s: %.3f %.3f -> %.3f %.3f, c1 %.3f %.3f, c2 %.3f %.3f, %.3f m", track->name().c_str(), i, track->eType == tt_Switch ? "switch" : "normal", a.x, a.z, b.x, b.z, c1.x, c1.z, c2.x, c2.z, geometry::bezier{path}.plan_length()));
+			}
+		}
+		return selftest_result::handled;
+	}
+	if (command == "splitkind" || command == "nudgekind")
+	{
+		std::string kind;
+		glm::dvec3 offset{0.0};
+		words >> kind >> offset.x >> offset.z;
+		auto const &records{alignment_store::records()};
+		TTrack *chosen{nullptr};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+				continue;
+			auto const found{alignment_store::on_track(*track)};
+			if (found.has_value() && alignment_store::describe(records[found->record].result.elements[found->element]).kind == kind)
+			{
+				chosen = track;
+				break;
+			}
+		}
+		if (chosen == nullptr)
+		{
+			WriteLog("SELFTEST " + command + ": no path over " + kind);
+			return selftest_result::handled;
+		}
+		if (command == "splitkind")
+		{
+			auto const before{editor_track::capture(*chosen)};
+			auto *created{editor_track::split_path(*chosen, 0.5)};
+			if (created != nullptr)
+				push_track_snapshot({{chosen, before}}, {created});
+			WriteLog("SELFTEST splitkind: " + chosen->name() + " split, the second half " + (created != nullptr ? created->name() : std::string{"-"}));
+		}
+		else
+		{
+			std::vector<std::pair<TTrack *, editor_track::state>> states{{chosen, editor_track::capture(*chosen)}};
+			std::vector<TTrack *> moved{chosen};
+			auto const &path{chosen->m_paths.front()};
+			for (auto const &end : {path.points[segment_data::point::start], path.points[segment_data::point::end]})
+				for (auto *neighbour : {chosen->trPrev, chosen->trNext})
+				{
+					if (neighbour == nullptr || neighbour->m_paths.empty() || std::find(moved.begin(), moved.end(), neighbour) != moved.end())
+						continue;
+					auto const &other{neighbour->m_paths.front()};
+					for (auto const kind : {editor_track::point_kind::start, editor_track::point_kind::end})
+						if (glm::distance(other.points[kind == editor_track::point_kind::start ? segment_data::point::start : segment_data::point::end], end) < 0.01)
+						{
+							states.emplace_back(neighbour, editor_track::capture(*neighbour));
+							editor_track::move_point(*neighbour, {0, kind}, end + offset);
+							moved.push_back(neighbour);
+							break;
+						}
+				}
+			editor_track::translate(*chosen, offset);
+			editor_track::commit(moved);
+			push_track_snapshot(std::move(states), {});
+			WriteLog("SELFTEST nudgekind: " + chosen->name() + " moved with " + std::to_string(moved.size() - 1) + " joined ends");
+		}
+		return selftest_result::handled;
+	}
+	if (command == "digitize")
+	{
+		glm::dvec3 point{0.0};
+		words >> point.x >> point.z;
+		TTrack *nearest{nullptr};
+		double distance{1e9};
+		for (auto *track : simulation::Paths.sequence())
+		{
+			if (track == nullptr || track->m_editorremoved || track->eType != tt_Normal || track->m_paths.empty())
+				continue;
+			auto const d{geometry::plan_distance(editor_track::point_at(*track, editor_track::nearest_parameter(*track, point)), point)};
+			if (d < distance)
+			{
+				distance = d;
+				nearest = track;
+			}
+		}
+		auto const kept{nearest != nullptr && digitize_drawn({nearest}, false)};
+		WriteLog(format("SELFTEST digitize %s: %d", nearest != nullptr ? nearest->name().c_str() : "-", kept ? 1 : 0));
+		return selftest_result::handled;
+	}
+	if (command == "parallel")
+	{
+		words >> m_parallel.spacing >> m_parallel.side;
+		m_parallel.scope = 1;
+		m_parallel.built_for = nullptr;
+		parallel_build();
+		WriteLog("SELFTEST parallel: " + m_parallel.status + " " + m_parallel.error);
+		return selftest_result::handled;
+	}
+	return selftest_result::unhandled;
+}