feat(roads): right of way and lane turns at junctions, road weights, kerbs, medians and forking roads, banks to the ground, roundabouts, pedestrian crossings, spawn sets by count; fix(editor): model skin export, placement on the ground under the orthophoto

world/RoadOrder.h

@@ -0,0 +1,60 @@
+/*
+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 <string>
+
+#include <glm/glm.hpp>
+
+#include "world/Event.h"
+
+// an order for the drivers of road vehicles heading for a place they may have to wait at: a closed level crossing,
+// a junction they have to give way at. to them it's what a signal is to the driver of a train. it doesn't go to
+// the event manager and never runs: the drivers find it on the lane they scan, and ask it what speed it allows
+class road_order : public basic_event
+{
+
+  public:
+	road_order()
+	{
+		m_passive = true;
+	}
+	void init() override {}
+	std::string input_text() const override
+	{
+		return "SetVelocity";
+	}
+	TCommandType input_command() const override
+	{
+		return TCommandType::cm_SetVelocity;
+	}
+	double input_value(int const Index) const override
+	{
+		return m_velocity;
+	}
+	glm::dvec3 input_location() const override
+	{
+		return m_location;
+	}
+	// members
+	double m_velocity{-1.0}; // 0: stop, -1: no limit
+	glm::dvec3 m_location{0.0};
+
+  private:
+	std::string type() const override
+	{
+		return "roadorder";
+	}
+	void deserialize_(cParser &Input, scene::scratch_data &Scratchpad) override {}
+	void run_() override {}
+	void export_as_text_(std::ostream &Output) const override {}
+};
+
+//---------------------------------------------------------------------------