pandemonium_engine/modules/texture_packer/texture_packer.h

#ifndef TEXTURE_PACKER_H
#define TEXTURE_PACKER_H

/*************************************************************************/
/*  texture_packer.h                                                     */
/*************************************************************************/
/*                         This file is part of:                         */
/*                          PANDEMONIUM ENGINE                           */
/*             https://github.com/Relintai/pandemonium_engine            */
/*************************************************************************/
/* Copyright (c) 2022-present Péter Magyar.                              */
/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md).   */
/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* 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  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/

#include "core/containers/vector.h"
#include "core/io/image.h"
#include "core/math/color.h"
#include "core/object/reference.h"
#include "core/string/ustring.h"

#include "scene/resources/texture.h"
#include <vector>

#include "rectpack2D/pack.h"

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

public:
	int get_texture_flags() const;
	void set_texture_flags(const int flags);

	int get_max_atlas_size() const;
	void set_max_atlas_size(const int size);

	bool get_keep_original_atlases() const;
	void set_keep_original_atlases(const bool value);

	Color get_background_color() const;
	void set_background_color(const Color &color);

	int get_margin() const;
	void set_margin(const int margin);

	Ref<AtlasTexture> add_texture(const Ref<Texture> &texture);

	Ref<AtlasTexture> get_texture(const Ref<Texture> &texture);
	Ref<AtlasTexture> get_texture_index(const int index);

	Ref<Texture> get_original_texture(const int index);

	bool contains_texture(const Ref<Texture> &texture);

	bool unref_texture_index(const int index);
	bool unref_texture(const Ref<Texture> &texture);
	void remove_texture_index(const int index);
	void remove_texture(const Ref<Texture> &texture);

	int get_texture_count();
	void clear();

	Ref<ImageTexture> get_generated_texture(const int index);
	int get_generated_texture_count();

	void merge();

	int get_offset_for_format(const Image::Format format);

	TexturePacker();
	~TexturePacker();

protected:
	static void _bind_methods();

private:
	int _texture_flags;
	int _max_atlas_size;
	bool _keep_original_atlases;
	Color _background_color;
	int _margin;

	Vector<rect_xywhf *> _rects;
	Vector<Ref<ImageTexture>> _generated_textures;
};

#endif