ソースコード
using UnityEngine;
[DisallowMultipleComponent]
[ExecuteAlways]
[RequireComponent( typeof( SpringJoint2D ) )]
[RequireComponent( typeof( LineRenderer ) )]
public sealed class Example : MonoBehaviour
{
private SpringJoint2D m_springJoint2D;
private LineRenderer m_lineRenderer;
private void Awake()
{
m_springJoint2D = GetComponent<SpringJoint2D>();
m_lineRenderer = GetComponent<LineRenderer>();
}
private void Update()
{
var originPoint = transform.TransformPoint( m_springJoint2D.anchor );
var connectedPoint = m_springJoint2D
.connectedBody
.transform
.TransformPoint( m_springJoint2D.connectedAnchor );
m_lineRenderer.SetPosition( 0, originPoint );
m_lineRenderer.SetPosition( 1, connectedPoint );
}
}
使用例
![f:id:baba_s:20211114210158g:plain](https://cdn-ak.f.st-hatena.com/images/fotolife/b/baba_s/20211114/20211114210158.gif)