pin_joint_2d.cpp

/**************************************************************************/
/*  pin_joint_2d.cpp                                                      */
/**************************************************************************/
/*                         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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/* included in all copies or substantial portions of the Software.        */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
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#include "pin_joint_2d.h"

#include "scene/2d/physics/physics_body_2d.h"

void PinJoint2D::_notification(int p_what) {
	switch (p_what) {
		case NOTIFICATION_DRAW: {
			if (!is_inside_tree()) {
				break;
			}

			if (!Engine::get_singleton()->is_editor_hint() && !get_tree()->is_debugging_collisions_hint()) {
				break;
			}

			draw_line(Point2(-10, 0), Point2(+10, 0), Color(0.7, 0.6, 0.0, 0.5), 3);
			draw_line(Point2(0, -10), Point2(0, +10), Color(0.7, 0.6, 0.0, 0.5), 3);
		} break;
	}
}

void PinJoint2D::_configure_joint(RID p_joint, PhysicsBody2D *body_a, PhysicsBody2D *body_b) {
	PhysicsServer2D::get_singleton()->joint_make_pin(p_joint, get_global_position(), body_a->get_rid(), body_b ? body_b->get_rid() : RID());
	PhysicsServer2D::get_singleton()->pin_joint_set_param(p_joint, PhysicsServer2D::PIN_JOINT_SOFTNESS, softness);
	PhysicsServer2D::get_singleton()->pin_joint_set_param(p_joint, PhysicsServer2D::PIN_JOINT_LIMIT_UPPER, angular_limit_upper);
	PhysicsServer2D::get_singleton()->pin_joint_set_param(p_joint, PhysicsServer2D::PIN_JOINT_LIMIT_LOWER, angular_limit_lower);
	PhysicsServer2D::get_singleton()->pin_joint_set_param(p_joint, PhysicsServer2D::PIN_JOINT_MOTOR_TARGET_VELOCITY, motor_target_velocity);
	PhysicsServer2D::get_singleton()->pin_joint_set_flag(p_joint, PhysicsServer2D::PIN_JOINT_FLAG_MOTOR_ENABLED, motor_enabled);
	PhysicsServer2D::get_singleton()->pin_joint_set_flag(p_joint, PhysicsServer2D::PIN_JOINT_FLAG_ANGULAR_LIMIT_ENABLED, angular_limit_enabled);
}

void PinJoint2D::set_softness(real_t p_softness) {
	if (softness == p_softness) {
		return;
	}
	softness = p_softness;
	queue_redraw();
	if (is_configured()) {
		PhysicsServer2D::get_singleton()->pin_joint_set_param(get_rid(), PhysicsServer2D::PIN_JOINT_SOFTNESS, p_softness);
	}
}

real_t PinJoint2D::get_softness() const {
	return softness;
}

void PinJoint2D::set_angular_limit_lower(real_t p_angular_limit_lower) {
	if (angular_limit_lower == p_angular_limit_lower) {
		return;
	}
	angular_limit_lower = p_angular_limit_lower;
	queue_redraw();
	if (is_configured()) {
		PhysicsServer2D::get_singleton()->pin_joint_set_param(get_rid(), PhysicsServer2D::PIN_JOINT_LIMIT_LOWER, p_angular_limit_lower);
	}
}

real_t PinJoint2D::get_angular_limit_lower() const {
	return angular_limit_lower;
}

void PinJoint2D::set_angular_limit_upper(real_t p_angular_limit_upper) {
	if (angular_limit_upper == p_angular_limit_upper) {
		return;
	}
	angular_limit_upper = p_angular_limit_upper;
	queue_redraw();
	if (is_configured()) {
		PhysicsServer2D::get_singleton()->pin_joint_set_param(get_rid(), PhysicsServer2D::PIN_JOINT_LIMIT_UPPER, p_angular_limit_upper);
	}
}

real_t PinJoint2D::get_angular_limit_upper() const {
	return angular_limit_upper;
}

void PinJoint2D::set_motor_target_velocity(real_t p_motor_target_velocity) {
	if (motor_target_velocity == p_motor_target_velocity) {
		return;
	}
	motor_target_velocity = p_motor_target_velocity;
	queue_redraw();
	if (is_configured()) {
		PhysicsServer2D::get_singleton()->pin_joint_set_param(get_rid(), PhysicsServer2D::PIN_JOINT_MOTOR_TARGET_VELOCITY, motor_target_velocity);
	}
}

real_t PinJoint2D::get_motor_target_velocity() const {
	return motor_target_velocity;
}

void PinJoint2D::set_motor_enabled(bool p_motor_enabled) {
	if (motor_enabled == p_motor_enabled) {
		return;
	}
	motor_enabled = p_motor_enabled;
	queue_redraw();
	if (is_configured()) {
		PhysicsServer2D::get_singleton()->pin_joint_set_flag(get_rid(), PhysicsServer2D::PIN_JOINT_FLAG_MOTOR_ENABLED, motor_enabled);
	}
}

bool PinJoint2D::is_motor_enabled() const {
	return motor_enabled;
}

void PinJoint2D::set_angular_limit_enabled(bool p_angular_limit_enabled) {
	if (angular_limit_enabled == p_angular_limit_enabled) {
		return;
	}
	angular_limit_enabled = p_angular_limit_enabled;
	queue_redraw();
	if (is_configured()) {
		PhysicsServer2D::get_singleton()->pin_joint_set_flag(get_rid(), PhysicsServer2D::PIN_JOINT_FLAG_ANGULAR_LIMIT_ENABLED, angular_limit_enabled);
	}
}

bool PinJoint2D::is_angular_limit_enabled() const {
	return angular_limit_enabled;
}

void PinJoint2D::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_softness", "softness"), &PinJoint2D::set_softness);
	ClassDB::bind_method(D_METHOD("get_softness"), &PinJoint2D::get_softness);
	ClassDB::bind_method(D_METHOD("set_angular_limit_lower", "angular_limit_lower"), &PinJoint2D::set_angular_limit_lower);
	ClassDB::bind_method(D_METHOD("get_angular_limit_lower"), &PinJoint2D::get_angular_limit_lower);
	ClassDB::bind_method(D_METHOD("set_angular_limit_upper", "angular_limit_upper"), &PinJoint2D::set_angular_limit_upper);
	ClassDB::bind_method(D_METHOD("get_angular_limit_upper"), &PinJoint2D::get_angular_limit_upper);
	ClassDB::bind_method(D_METHOD("set_motor_target_velocity", "motor_target_velocity"), &PinJoint2D::set_motor_target_velocity);
	ClassDB::bind_method(D_METHOD("get_motor_target_velocity"), &PinJoint2D::get_motor_target_velocity);
	ClassDB::bind_method(D_METHOD("set_motor_enabled", "enabled"), &PinJoint2D::set_motor_enabled);
	ClassDB::bind_method(D_METHOD("is_motor_enabled"), &PinJoint2D::is_motor_enabled);
	ClassDB::bind_method(D_METHOD("set_angular_limit_enabled", "enabled"), &PinJoint2D::set_angular_limit_enabled);
	ClassDB::bind_method(D_METHOD("is_angular_limit_enabled"), &PinJoint2D::is_angular_limit_enabled);

	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "softness", PROPERTY_HINT_RANGE, "0.00,16,0.01,exp"), "set_softness", "get_softness");
	ADD_GROUP("Angular Limit", "angular_limit_");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "angular_limit_enabled"), "set_angular_limit_enabled", "is_angular_limit_enabled");
	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "angular_limit_lower", PROPERTY_HINT_RANGE, "-180,180,0.1,radians_as_degrees"), "set_angular_limit_lower", "get_angular_limit_lower");
	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "angular_limit_upper", PROPERTY_HINT_RANGE, "-180,180,0.1,radians_as_degrees"), "set_angular_limit_upper", "get_angular_limit_upper");
	ADD_GROUP("Motor", "motor_");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "motor_enabled"), "set_motor_enabled", "is_motor_enabled");
	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "motor_target_velocity", PROPERTY_HINT_RANGE, U"-200,200,0.01,or_greater,or_less,radians_as_degrees,suffix:\u00B0/s"), "set_motor_target_velocity", "get_motor_target_velocity");
}

PinJoint2D::PinJoint2D() {
}