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#pragma once
#include "modeleditor.h"

namespace ldraw
{
	/// Determines how quadrilaterals are split into triangles
	enum class Diagonal
	{
		Diagonal_13,
		Diagonal_24
	};

	// Splits the specified quadrilateral into triangles.
	// If it is not a quadrilateral then no action is performed
	auto splitQuadrilateral(ModelEditor& editor,
		quadrilateralid_t quadrilateral_id,
		Diagonal splitType = Diagonal::Diagonal_13
	) -> std::optional<std::pair<triangleid_t, triangleid_t>>;

	void invert(ModelEditor& editor, ldraw::id_t id, GetPolygonsContext *context);
	void makeUnofficial(ModelEditor &editor);
}