/*************************************************************************/
/*  physics_joint.h                                                      */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2016 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.*/
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
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/*************************************************************************/
#ifndef PHYSICS_JOINT_H
#define PHYSICS_JOINT_H

#include "scene/3d/spatial.h"
#include "scene/3d/physics_body.h"


class Joint : public Spatial {

	OBJ_TYPE(Joint,Spatial);

	RID ba,bb;

	RID joint;

	NodePath a;
	NodePath b;

	int solver_priority;
	bool exclude_from_collision;


protected:

	void _update_joint(bool p_only_free=false);

	void _notification(int p_what);

	virtual RID _configure_joint(PhysicsBody *body_a,PhysicsBody *body_b)=0;

	static void _bind_methods();
public:

	void set_node_a(const NodePath& p_node_a);
	NodePath get_node_a() const;

	void set_node_b(const NodePath& p_node_b);
	NodePath get_node_b() const;

	void set_solver_priority(int p_priority);
	int get_solver_priority() const;

	void set_exclude_nodes_from_collision(bool p_enable);
	bool get_exclude_nodes_from_collision() const;

	RID get_joint() const { return joint; }
	Joint();

};

///////////////////////////////////////////


class PinJoint : public Joint {

	OBJ_TYPE(PinJoint,Joint);
public:

	enum Param {
		PARAM_BIAS=PhysicsServer::PIN_JOINT_BIAS,
		PARAM_DAMPING=PhysicsServer::PIN_JOINT_DAMPING,
		PARAM_IMPULSE_CLAMP=PhysicsServer::PIN_JOINT_IMPULSE_CLAMP
	};

protected:

	float params[3];
	virtual RID _configure_joint(PhysicsBody *body_a, PhysicsBody *body_b);
	static void _bind_methods();
public:

	void set_param(Param p_param,float p_value);
	float get_param(Param p_param) const;

	PinJoint();
};

VARIANT_ENUM_CAST(PinJoint::Param);


class HingeJoint : public Joint {

	OBJ_TYPE(HingeJoint,Joint);
public:

	enum Param {
		PARAM_BIAS=PhysicsServer::HINGE_JOINT_BIAS,
		PARAM_LIMIT_UPPER=PhysicsServer::HINGE_JOINT_LIMIT_UPPER,
		PARAM_LIMIT_LOWER=PhysicsServer::HINGE_JOINT_LIMIT_LOWER,
		PARAM_LIMIT_BIAS=PhysicsServer::HINGE_JOINT_LIMIT_BIAS,
		PARAM_LIMIT_SOFTNESS=PhysicsServer::HINGE_JOINT_LIMIT_SOFTNESS,
		PARAM_LIMIT_RELAXATION=PhysicsServer::HINGE_JOINT_LIMIT_RELAXATION,
		PARAM_MOTOR_TARGET_VELOCITY=PhysicsServer::HINGE_JOINT_MOTOR_TARGET_VELOCITY,
		PARAM_MOTOR_MAX_IMPULSE=PhysicsServer::HINGE_JOINT_MOTOR_MAX_IMPULSE,
		PARAM_MAX=PhysicsServer::HINGE_JOINT_MAX
	};

	enum Flag {
		FLAG_USE_LIMIT=PhysicsServer::HINGE_JOINT_FLAG_USE_LIMIT,
		FLAG_ENABLE_MOTOR=PhysicsServer::HINGE_JOINT_FLAG_ENABLE_MOTOR,
		FLAG_MAX=PhysicsServer::HINGE_JOINT_FLAG_MAX
	};



protected:

	float params[PARAM_MAX];
	bool flags[FLAG_MAX];
	virtual RID _configure_joint(PhysicsBody *body_a, PhysicsBody *body_b);
	static void _bind_methods();

	void _set_upper_limit(float p_limit);
	float _get_upper_limit() const;

	void _set_lower_limit(float p_limit);
	float _get_lower_limit() const;

public:

	void set_param(Param p_param,float p_value);
	float get_param(Param p_param) const;

	void set_flag(Flag p_flag,bool p_value);
	bool get_flag(Flag p_flag) const;

	HingeJoint();
};

VARIANT_ENUM_CAST(HingeJoint::Param);
VARIANT_ENUM_CAST(HingeJoint::Flag);


class SliderJoint : public Joint {

	OBJ_TYPE(SliderJoint,Joint);
public:

	enum Param {
		PARAM_LINEAR_LIMIT_UPPER=PhysicsServer::SLIDER_JOINT_LINEAR_LIMIT_UPPER,
		PARAM_LINEAR_LIMIT_LOWER=PhysicsServer::SLIDER_JOINT_LINEAR_LIMIT_LOWER,
		PARAM_LINEAR_LIMIT_SOFTNESS=PhysicsServer::SLIDER_JOINT_LINEAR_LIMIT_SOFTNESS,
		PARAM_LINEAR_LIMIT_RESTITUTION=PhysicsServer::SLIDER_JOINT_LINEAR_LIMIT_RESTITUTION,
		PARAM_LINEAR_LIMIT_DAMPING=PhysicsServer::SLIDER_JOINT_LINEAR_LIMIT_DAMPING,
		PARAM_LINEAR_MOTION_SOFTNESS=PhysicsServer::SLIDER_JOINT_LINEAR_MOTION_SOFTNESS,
		PARAM_LINEAR_MOTION_RESTITUTION=PhysicsServer::SLIDER_JOINT_LINEAR_MOTION_RESTITUTION,
		PARAM_LINEAR_MOTION_DAMPING=PhysicsServer::SLIDER_JOINT_LINEAR_MOTION_DAMPING,
		PARAM_LINEAR_ORTHOGONAL_SOFTNESS=PhysicsServer::SLIDER_JOINT_LINEAR_ORTHOGONAL_SOFTNESS,
		PARAM_LINEAR_ORTHOGONAL_RESTITUTION=PhysicsServer::SLIDER_JOINT_LINEAR_ORTHOGONAL_RESTITUTION,
		PARAM_LINEAR_ORTHOGONAL_DAMPING=PhysicsServer::SLIDER_JOINT_LINEAR_ORTHOGONAL_DAMPING,

		PARAM_ANGULAR_LIMIT_UPPER=PhysicsServer::SLIDER_JOINT_ANGULAR_LIMIT_UPPER,
		PARAM_ANGULAR_LIMIT_LOWER=PhysicsServer::SLIDER_JOINT_ANGULAR_LIMIT_LOWER,
		PARAM_ANGULAR_LIMIT_SOFTNESS=PhysicsServer::SLIDER_JOINT_ANGULAR_LIMIT_SOFTNESS,
		PARAM_ANGULAR_LIMIT_RESTITUTION=PhysicsServer::SLIDER_JOINT_ANGULAR_LIMIT_RESTITUTION,
		PARAM_ANGULAR_LIMIT_DAMPING=PhysicsServer::SLIDER_JOINT_ANGULAR_LIMIT_DAMPING,
		PARAM_ANGULAR_MOTION_SOFTNESS=PhysicsServer::SLIDER_JOINT_ANGULAR_MOTION_SOFTNESS,
		PARAM_ANGULAR_MOTION_RESTITUTION=PhysicsServer::SLIDER_JOINT_ANGULAR_MOTION_RESTITUTION,
		PARAM_ANGULAR_MOTION_DAMPING=PhysicsServer::SLIDER_JOINT_ANGULAR_MOTION_DAMPING,
		PARAM_ANGULAR_ORTHOGONAL_SOFTNESS=PhysicsServer::SLIDER_JOINT_ANGULAR_ORTHOGONAL_SOFTNESS,
		PARAM_ANGULAR_ORTHOGONAL_RESTITUTION=PhysicsServer::SLIDER_JOINT_ANGULAR_ORTHOGONAL_RESTITUTION,
		PARAM_ANGULAR_ORTHOGONAL_DAMPING=PhysicsServer::SLIDER_JOINT_ANGULAR_ORTHOGONAL_DAMPING,
		PARAM_MAX=PhysicsServer::SLIDER_JOINT_MAX

	};

protected:



	void _set_upper_limit_angular(float p_limit_angular);
	float _get_upper_limit_angular() const;

	void _set_lower_limit_angular(float p_limit_angular);
	float _get_lower_limit_angular() const;

	float params[PARAM_MAX];
	virtual RID _configure_joint(PhysicsBody *body_a, PhysicsBody *body_b);
	static void _bind_methods();
public:

	void set_param(Param p_param,float p_value);
	float get_param(Param p_param) const;

	SliderJoint();
};


VARIANT_ENUM_CAST(SliderJoint::Param);




class ConeTwistJoint : public Joint {

	OBJ_TYPE(ConeTwistJoint,Joint);
public:

	enum Param {

		PARAM_SWING_SPAN,
		PARAM_TWIST_SPAN,
		PARAM_BIAS,
		PARAM_SOFTNESS,
		PARAM_RELAXATION,
		PARAM_MAX
	};

protected:


	void _set_swing_span(float p_limit_angular);
	float _get_swing_span() const;

	void _set_twist_span(float p_limit_angular);
	float _get_twist_span() const;

	float params[PARAM_MAX];
	virtual RID _configure_joint(PhysicsBody *body_a, PhysicsBody *body_b);
	static void _bind_methods();
public:

	void set_param(Param p_param,float p_value);
	float get_param(Param p_param) const;

	ConeTwistJoint();
};


VARIANT_ENUM_CAST(ConeTwistJoint::Param);


class Generic6DOFJoint : public Joint {

	OBJ_TYPE(Generic6DOFJoint,Joint);
public:

	enum Param {

		PARAM_LINEAR_LOWER_LIMIT=PhysicsServer::G6DOF_JOINT_LINEAR_LOWER_LIMIT,
		PARAM_LINEAR_UPPER_LIMIT=PhysicsServer::G6DOF_JOINT_LINEAR_UPPER_LIMIT,
		PARAM_LINEAR_LIMIT_SOFTNESS=PhysicsServer::G6DOF_JOINT_LINEAR_LIMIT_SOFTNESS,
		PARAM_LINEAR_RESTITUTION=PhysicsServer::G6DOF_JOINT_LINEAR_RESTITUTION,
		PARAM_LINEAR_DAMPING=PhysicsServer::G6DOF_JOINT_LINEAR_DAMPING,
		PARAM_ANGULAR_LOWER_LIMIT=PhysicsServer::G6DOF_JOINT_ANGULAR_LOWER_LIMIT,
		PARAM_ANGULAR_UPPER_LIMIT=PhysicsServer::G6DOF_JOINT_ANGULAR_UPPER_LIMIT,
		PARAM_ANGULAR_LIMIT_SOFTNESS=PhysicsServer::G6DOF_JOINT_ANGULAR_LIMIT_SOFTNESS,
		PARAM_ANGULAR_DAMPING=PhysicsServer::G6DOF_JOINT_ANGULAR_DAMPING,
		PARAM_ANGULAR_RESTITUTION=PhysicsServer::G6DOF_JOINT_ANGULAR_RESTITUTION,
		PARAM_ANGULAR_FORCE_LIMIT=PhysicsServer::G6DOF_JOINT_ANGULAR_FORCE_LIMIT,
		PARAM_ANGULAR_ERP=PhysicsServer::G6DOF_JOINT_ANGULAR_ERP,
		PARAM_ANGULAR_MOTOR_TARGET_VELOCITY=PhysicsServer::G6DOF_JOINT_ANGULAR_MOTOR_TARGET_VELOCITY,
		PARAM_ANGULAR_MOTOR_FORCE_LIMIT=PhysicsServer::G6DOF_JOINT_ANGULAR_MOTOR_FORCE_LIMIT,
		PARAM_MAX=PhysicsServer::G6DOF_JOINT_MAX,
	};

	enum Flag {
		FLAG_ENABLE_LINEAR_LIMIT=PhysicsServer::G6DOF_JOINT_FLAG_ENABLE_LINEAR_LIMIT,
		FLAG_ENABLE_ANGULAR_LIMIT=PhysicsServer::G6DOF_JOINT_FLAG_ENABLE_ANGULAR_LIMIT,
		FLAG_ENABLE_MOTOR=PhysicsServer::G6DOF_JOINT_FLAG_ENABLE_MOTOR,
		FLAG_MAX=PhysicsServer::G6DOF_JOINT_FLAG_MAX
	};


protected:


	void _set_angular_hi_limit_x(float p_limit_angular);
	float _get_angular_hi_limit_x() const;

	void _set_angular_hi_limit_y(float p_limit_angular);
	float _get_angular_hi_limit_y() const;

	void _set_angular_hi_limit_z(float p_limit_angular);
	float _get_angular_hi_limit_z() const;

	void _set_angular_lo_limit_x(float p_limit_angular);
	float _get_angular_lo_limit_x() const;

	void _set_angular_lo_limit_y(float p_limit_angular);
	float _get_angular_lo_limit_y() const;

	void _set_angular_lo_limit_z(float p_limit_angular);
	float _get_angular_lo_limit_z() const;

	float params_x[PARAM_MAX];
	bool flags_x[FLAG_MAX];
	float params_y[PARAM_MAX];
	bool flags_y[FLAG_MAX];
	float params_z[PARAM_MAX];
	bool flags_z[FLAG_MAX];

	virtual RID _configure_joint(PhysicsBody *body_a, PhysicsBody *body_b);
	static void _bind_methods();
public:

	void set_param_x(Param p_param,float p_value);
	float get_param_x(Param p_param) const;

	void set_param_y(Param p_param,float p_value);
	float get_param_y(Param p_param) const;

	void set_param_z(Param p_param,float p_value);
	float get_param_z(Param p_param) const;

	void set_flag_x(Flag p_flag,bool p_enabled);
	bool get_flag_x(Flag p_flag) const;

	void set_flag_y(Flag p_flag,bool p_enabled);
	bool get_flag_y(Flag p_flag) const;

	void set_flag_z(Flag p_flag,bool p_enabled);
	bool get_flag_z(Flag p_flag) const;

	Generic6DOFJoint();
};


VARIANT_ENUM_CAST(Generic6DOFJoint::Param);
VARIANT_ENUM_CAST(Generic6DOFJoint::Flag);


#if 0
class PhysicsJoint : public Spatial {

	OBJ_TYPE(PhysicsJoint,Spatial);
	OBJ_CATEGORY("3D Physics Nodes");

	NodePath body_A;
	NodePath body_B;
	bool active;
	bool no_collision;


	RID indicator_instance;

	RID _get_visual_instance_rid() const;
protected:

	RID joint;
	RID indicator;

	bool _set(const StringName& p_name, const Variant& p_value);
	bool _get(const StringName& p_name,Variant &r_ret) const;
	void _get_property_list( List<PropertyInfo> *p_list) const;
	void _notification(int p_what);
	static void _bind_methods();

	virtual RID create(PhysicsBody*A,PhysicsBody*B)=0;
	virtual void _update_indicator()=0;

	void _disconnect();
	void _connect();
public:

	void set_body_A(const NodePath& p_path);
	void set_body_B(const NodePath& p_path);
	NodePath get_body_A() const;
	NodePath get_body_B() const;

	void set_active(bool p_active);
	bool is_active() const;

	void set_disable_collision(bool p_active);
	bool has_disable_collision() const;

	void reconnect();

	RID get_rid();

	PhysicsJoint();
	~PhysicsJoint();
};



class PhysicsJointPin : public PhysicsJoint {

	OBJ_TYPE( PhysicsJointPin, PhysicsJoint );

protected:

	virtual void _update_indicator();
	virtual RID create(PhysicsBody*A,PhysicsBody*B);
public:


	PhysicsJointPin();
};

#endif // PHYSICS_JOINT_H
#endif
