/*************************************************************************/ /* joint_2d.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 JOINT_2D_H #define JOINT_2D_H #include "node_2d.h" class PhysicsBody2D; class Joint2D : public Node2D { GDCLASS(Joint2D, Node2D); RID joint; RID ba, bb; NodePath a; NodePath b; real_t bias = 0.0; bool exclude_from_collision = true; bool configured = false; String warning; protected: void _disconnect_signals(); void _body_exit_tree(); void _update_joint(bool p_only_free = false); void _notification(int p_what); virtual void _configure_joint(RID p_joint, PhysicsBody2D *body_a, PhysicsBody2D *body_b) = 0; static void _bind_methods(); _FORCE_INLINE_ bool is_configured() const { return configured; } public: virtual TypedArray<String> get_configuration_warnings() const override; 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_bias(real_t p_bias); real_t get_bias() const; void set_exclude_nodes_from_collision(bool p_enable); bool get_exclude_nodes_from_collision() const; RID get_joint() const { return joint; } Joint2D(); ~Joint2D(); }; class PinJoint2D : public Joint2D { GDCLASS(PinJoint2D, Joint2D); real_t softness = 0.0; protected: void _notification(int p_what); virtual void _configure_joint(RID p_joint, PhysicsBody2D *body_a, PhysicsBody2D *body_b) override; static void _bind_methods(); public: void set_softness(real_t p_softness); real_t get_softness() const; PinJoint2D(); }; class GrooveJoint2D : public Joint2D { GDCLASS(GrooveJoint2D, Joint2D); real_t length = 50.0; real_t initial_offset = 25.0; protected: void _notification(int p_what); virtual void _configure_joint(RID p_joint, PhysicsBody2D *body_a, PhysicsBody2D *body_b) override; static void _bind_methods(); public: void set_length(real_t p_length); real_t get_length() const; void set_initial_offset(real_t p_initial_offset); real_t get_initial_offset() const; GrooveJoint2D(); }; class DampedSpringJoint2D : public Joint2D { GDCLASS(DampedSpringJoint2D, Joint2D); real_t stiffness = 20.0; real_t damping = 1.0; real_t rest_length = 0.0; real_t length = 50.0; protected: void _notification(int p_what); virtual void _configure_joint(RID p_joint, PhysicsBody2D *body_a, PhysicsBody2D *body_b) override; static void _bind_methods(); public: void set_length(real_t p_length); real_t get_length() const; void set_rest_length(real_t p_rest_length); real_t get_rest_length() const; void set_damping(real_t p_damping); real_t get_damping() const; void set_stiffness(real_t p_stiffness); real_t get_stiffness() const; DampedSpringJoint2D(); }; #endif // JOINT_2D_H