Unity Script Reference – HingeJoint.spring

HingeJoint.spring

var spring : JointSpring

Description

The spring attempts to reach a target angle by adding spring and damping forces.

The spring.spring force attempts to reach the target angle. A larger value makes the spring reach the target position faster.

The spring.damper force dampens the angular velocity. A larger value makes the spring reach the goal slower.

The spring reaches for the spring.targetPosition angle in degrees relative to the rest angle. The rest angle between the bodies is always zero at the beginning of the simulation.

JavaScript

// Make the spring reach shoot for a 70 degree angle.
// This could be used to fire off a catapult.

hingeJoint.spring.spring = 10;
hingeJoint.spring.damper = 3;
hingeJoint.spring.targetPosition = 70;

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    void Example() {
        hingeJoint.spring.spring = 10;
        hingeJoint.spring.damper = 3;
        hingeJoint.spring.targetPosition = 70;
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    def Example():
        hingeJoint.spring.spring = 10
        hingeJoint.spring.damper = 3
        hingeJoint.spring.targetPosition = 70

Modifying the spring automatically enables it.