Collider.isTrigger

描述

指定此碰撞体是否配置为触发器。

触发器不会注册与传入的 Rigidbody 的碰撞。相反，当刚体进入或退出触发器体积时，它会发送 OnTriggerEnter、OnTriggerExit 和 OnTriggerStay 消息。

using UnityEngine;

public class Example : MonoBehaviour
{
    Collider m_ObjectCollider;

    void Start()
    {
        //Fetch the GameObject's Collider (make sure they have a Collider component)
        m_ObjectCollider = GetComponent<Collider>();
        //Here the GameObject's Collider is not a trigger
        m_ObjectCollider.isTrigger = false;
        //Output whether the Collider is a trigger type Collider or not
        Debug.Log("Trigger On : " + m_ObjectCollider.isTrigger);
    }

    void OnMouseDown()
    {
        //GameObject's Collider is now a trigger Collider when the GameObject is clicked. It now acts as a trigger
        m_ObjectCollider.isTrigger = true;
        //Output to console the GameObject’s trigger state
        Debug.Log("Trigger On : " + m_ObjectCollider.isTrigger);
    }
}