private void OnTriggerEnter(Collider other)
        {
            JointKinematicBody joint = other.GetComponent <JointKinematicBody>();

            if (joint == null)
            {
                return;
            }

            currentJoints.Add(joint);
            WriteText();
        }
        private void OnTriggerExit(Collider other)
        {
            JointKinematicBody joint = other.GetComponent <JointKinematicBody>();

            if (joint == null)
            {
                return;
            }

            if (currentJoints.Contains(joint))
            {
                currentJoints.Remove(joint);
            }
            else
            {
                currentJoints.Add(joint);
                WriteText();
                currentJoints.Remove(joint);
            }
            if (currentJoints.Count <= 0)
            {
                WriteText(true);
            }
        }