add missing files

launcher/scenery_list.h

@@ -0,0 +1,53 @@
+#pragma once
+
+#include "uilayer.h"
+#include <filesystem>
+
+struct trainset_desc {
+	std::string description;
+
+	std::string name;
+	std::string track;
+
+	float offset { 0.f };
+	float velocity { 0.f };
+
+	std::vector<std::string> vehicles;
+	std::vector<int> couplings;
+};
+
+struct scenery_desc {
+	std::filesystem::path path;
+	std::string name;
+	std::string description;
+	std::string image_path;
+	texture_handle image = 0;
+
+	std::vector<std::pair<std::string, std::string>> links;
+	std::vector<trainset_desc> trainsets;
+
+	std::string title() {
+		if (!name.empty())
+			return name;
+		else
+			return path.stem().string();
+	}
+};
+
+namespace ui
+{
+class scenerylist_panel : public ui_panel
+{
+  public:
+	scenerylist_panel();
+
+	void render() override;
+
+private:
+	std::vector<scenery_desc> scenarios;
+	scenery_desc const *selected_scenery = nullptr;
+
+	void scan_scenarios();
+	void scan_scn(std::string path);
+};
+} // namespace ui