#ifndef MESH_DATA_TOOL_H
#define MESH_DATA_TOOL_H
/*************************************************************************/
/*  mesh_data_tool.h                                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "scene/resources/mesh/mesh.h"

class MeshDataTool : public Reference {
	GDCLASS(MeshDataTool, Reference);

	int format;
	struct Vertex {
		Vector3 vertex;
		Color color;
		Vector3 normal; // normal, binormal, tangent
		Plane tangent;
		Vector2 uv;
		Vector2 uv2;
		Vector<int> edges;
		Vector<int> faces;
		Variant meta;
	};

	Vector<Vertex> vertices;

	struct Edge {
		int vertex[2];
		Vector<int> faces;
		Variant meta;
	};

	Vector<Edge> edges;

	struct Face {
		int v[3];
		int edges[3];
		Variant meta;
	};

	Vector<Face> faces;

	Ref<Material> material;

protected:
	static void _bind_methods();

public:
	void clear();
	Error create_from_surface(const Ref<ArrayMesh> &p_mesh, int p_surface);
	Error commit_to_surface(const Ref<ArrayMesh> &p_mesh);

	int get_format() const;

	int get_vertex_count() const;
	int get_edge_count() const;
	int get_face_count() const;

	Vector3 get_vertex(int p_idx) const;
	void set_vertex(int p_idx, const Vector3 &p_vertex);

	Vector3 get_vertex_normal(int p_idx) const;
	void set_vertex_normal(int p_idx, const Vector3 &p_normal);

	Plane get_vertex_tangent(int p_idx) const;
	void set_vertex_tangent(int p_idx, const Plane &p_tangent);

	Vector2 get_vertex_uv(int p_idx) const;
	void set_vertex_uv(int p_idx, const Vector2 &p_uv);

	Vector2 get_vertex_uv2(int p_idx) const;
	void set_vertex_uv2(int p_idx, const Vector2 &p_uv2);

	Color get_vertex_color(int p_idx) const;
	void set_vertex_color(int p_idx, const Color &p_color);

	Variant get_vertex_meta(int p_idx) const;
	void set_vertex_meta(int p_idx, const Variant &p_meta);

	Vector<int> get_vertex_edges(int p_idx) const;
	Vector<int> get_vertex_faces(int p_idx) const;

	int get_edge_vertex(int p_edge, int p_vertex) const;
	Vector<int> get_edge_faces(int p_edge) const;
	Variant get_edge_meta(int p_idx) const;
	void set_edge_meta(int p_idx, const Variant &p_meta);

	int get_face_vertex(int p_face, int p_vertex) const;
	int get_face_edge(int p_face, int p_vertex) const;
	Variant get_face_meta(int p_face) const;
	void set_face_meta(int p_face, const Variant &p_meta);
	Vector3 get_face_normal(int p_face) const;

	Ref<Material> get_material() const;
	void set_material(const Ref<Material> &p_material);

	MeshDataTool();
};

#endif // MESH_DATA_TOOL_H