godot/modules/jolt_physics/joints/jolt_slider_joint_3d.h
Mikael Hermansson d470c2ac6a Add Jolt Physics as an alternative 3D physics engine
Co-authored-by: Jorrit Rouwe <jrouwe@gmail.com>
2024-12-11 13:57:25 +01:00

97 lines
4.4 KiB
C++

/**************************************************************************/
/* jolt_slider_joint_3d.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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#ifndef JOLT_SLIDER_JOINT_3D_H
#define JOLT_SLIDER_JOINT_3D_H
#include "../jolt_physics_server_3d.h"
#include "jolt_joint_3d.h"
#include "Jolt/Jolt.h"
#include "Jolt/Physics/Constraints/SliderConstraint.h"
class JoltSliderJoint3D final : public JoltJoint3D {
typedef PhysicsServer3D::SliderJointParam Parameter;
typedef JoltPhysicsServer3D::SliderJointParamJolt JoltParameter;
typedef JoltPhysicsServer3D::SliderJointFlagJolt JoltFlag;
double limit_upper = 0.0;
double limit_lower = 0.0;
double limit_spring_frequency = 0.0;
double limit_spring_damping = 0.0;
double motor_target_speed = 0.0f;
double motor_max_force = FLT_MAX;
bool limits_enabled = true;
bool limit_spring_enabled = false;
bool motor_enabled = false;
JPH::Constraint *_build_slider(JPH::Body *p_jolt_body_a, JPH::Body *p_jolt_body_b, const Transform3D &p_shifted_ref_a, const Transform3D &p_shifted_ref_b, float p_limit) const;
JPH::Constraint *_build_fixed(JPH::Body *p_jolt_body_a, JPH::Body *p_jolt_body_b, const Transform3D &p_shifted_ref_a, const Transform3D &p_shifted_ref_b) const;
bool _is_sprung() const { return limit_spring_enabled && limit_spring_frequency > 0.0; }
bool _is_fixed() const { return limits_enabled && limit_lower == limit_upper && !_is_sprung(); }
void _update_motor_state();
void _update_motor_velocity();
void _update_motor_limit();
void _limits_changed();
void _limit_spring_changed();
void _motor_state_changed();
void _motor_speed_changed();
void _motor_limit_changed();
public:
JoltSliderJoint3D(const JoltJoint3D &p_old_joint, JoltBody3D *p_body_a, JoltBody3D *p_body_b, const Transform3D &p_local_ref_a, const Transform3D &p_local_ref_b);
virtual PhysicsServer3D::JointType get_type() const override { return PhysicsServer3D::JOINT_TYPE_SLIDER; }
double get_param(PhysicsServer3D::SliderJointParam p_param) const;
void set_param(PhysicsServer3D::SliderJointParam p_param, double p_value);
double get_jolt_param(JoltParameter p_param) const;
void set_jolt_param(JoltParameter p_param, double p_value);
bool get_jolt_flag(JoltFlag p_flag) const;
void set_jolt_flag(JoltFlag p_flag, bool p_enabled);
float get_applied_force() const;
float get_applied_torque() const;
virtual void rebuild() override;
};
#endif // JOLT_SLIDER_JOINT_3D_H