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/*************************************************************************/
/*  skeleton_modification_2d_twoboneik.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  */
/* 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.                */
/*************************************************************************/

#ifndef SKELETONMODIFICATION2DTWOBONEIK_H
#define SKELETONMODIFICATION2DTWOBONEIK_H

#include "scene/2d/skeleton_2d.h"
#include "scene/resources/skeleton_modification_2d.h"

///////////////////////////////////////
// SkeletonModification2DJIGGLE
///////////////////////////////////////

class SkeletonModification2DTwoBoneIK : public SkeletonModification2D {
	GDCLASS(SkeletonModification2DTwoBoneIK, SkeletonModification2D);

private:
	NodePath target_node;
	ObjectID target_node_cache;
	float target_minimum_distance = 0;
	float target_maximum_distance = 0;
	bool flip_bend_direction = false;

	NodePath joint_one_bone2d_node;
	ObjectID joint_one_bone2d_node_cache;
	int joint_one_bone_idx = -1;

	NodePath joint_two_bone2d_node;
	ObjectID joint_two_bone2d_node_cache;
	int joint_two_bone_idx = -1;

#ifdef TOOLS_ENABLED
	bool editor_draw_min_max = false;
#endif // TOOLS_ENABLED

	void update_target_cache();
	void update_joint_one_bone2d_cache();
	void update_joint_two_bone2d_cache();

protected:
	static void _bind_methods();
	bool _get(const StringName &p_path, Variant &r_ret) const;
	bool _set(const StringName &p_path, const Variant &p_value);
	void _get_property_list(List<PropertyInfo> *p_list) const;

public:
	void _execute(float p_delta) override;
	void _setup_modification(SkeletonModificationStack2D *p_stack) override;
	void _draw_editor_gizmo() override;

	void set_target_node(const NodePath &p_target_node);
	NodePath get_target_node() const;

	void set_target_minimum_distance(float p_minimum_distance);
	float get_target_minimum_distance() const;
	void set_target_maximum_distance(float p_maximum_distance);
	float get_target_maximum_distance() const;
	void set_flip_bend_direction(bool p_flip_direction);
	bool get_flip_bend_direction() const;

	void set_joint_one_bone2d_node(const NodePath &p_node);
	NodePath get_joint_one_bone2d_node() const;
	void set_joint_one_bone_idx(int p_bone_idx);
	int get_joint_one_bone_idx() const;

	void set_joint_two_bone2d_node(const NodePath &p_node);
	NodePath get_joint_two_bone2d_node() const;
	void set_joint_two_bone_idx(int p_bone_idx);
	int get_joint_two_bone_idx() const;

#ifdef TOOLS_ENABLED
	void set_editor_draw_min_max(bool p_draw);
	bool get_editor_draw_min_max() const;
#endif // TOOLS_ENABLED

	SkeletonModification2DTwoBoneIK();
	~SkeletonModification2DTwoBoneIK();
};

#endif // SKELETONMODIFICATION2DTWOBONEIK_H