Strength of a rubber-band pull toward the defined direction. Only used if mode
includes Position.
using UnityEngine;
public class Example : MonoBehaviour { // Create a JointDrive, configure it and assign the JointDrive to // the zDrive element of a configurable joint.
void Start() { ConfigurableJoint joint = gameObject.AddComponent<ConfigurableJoint>(); joint.targetPosition = new Vector3(0, 0, -10);
JointDrive drive = new JointDrive(); drive.mode = JointDriveMode.Position; drive.positionSpring = 20;
joint.zDrive = drive; } }