csg_2d.h

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/*  csg_2d.h                                                              */
/**************************************************************************/
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#ifndef CSG_2D_H
#define CSG_2D_H

#include "core/math/rect2.h"
#include "core/math/transform_2d.h"
#include "core/templates/local_vector.h"

#include "thirdparty/clipper2/include/clipper2/clipper.h"

struct CSGBrush2D {
	struct Outline {
		LocalVector<Vector2> vertices;
		bool is_hole = false;
		Rect2 rect;
	};

	LocalVector<Outline> outlines;

	inline void _regen_outline_rects() {
		for (uint32_t i = 0; i < outlines.size(); i++) {
			outlines[i].rect = Rect2();
			if (outlines[i].vertices.size() > 0) {
				outlines[i].rect.position = outlines[i].vertices[0];
				for (uint32_t j = 1; j < outlines[i].vertices.size(); j++) {
					outlines[i].rect.expand_to(outlines[i].vertices[j]);
				}
			}
		}
	}

	Clipper2Lib::PathsD poly_paths;

	void copy_from(const CSGBrush2D &p_brush, const Transform2D &p_xform);

	void build_from_outlines(const LocalVector<Outline> &p_outlines);
};

#endif // CSG_2D_H