unity 3d中碰撞检测与触发器

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Collider下面有这样一些方法：

OnTriggerEnter	OnTriggerEnter is called when the Collider other enters the trigger.
OnTriggerExit	OnTriggerExit is called when the Collider other has stopped touching the trigger.
OnTriggerStay	OnTriggerStay is called almost all the frames for every Collider other that is touching the trigger.
OnCollisionEnter	OnCollisionEnter is called when this collider/rigidbody has begun touching another rigidbody/collider.
OnCollisionExit	OnCollisionExit is called when this collider/rigidbody has stopped touching another rigidbody/collider.
OnCollisionStay	OnCollisionStay is called once per frame for every collider/rigidbody that is touching rigidbody/collider.

例子：

1. <div>using UnityEngine;
   
2. using System.Collections;
   
3. public class SphereTest : MonoBehaviour {
   
4. // Use this for initialization
   
5. void Start ()
   
6. {
   
7. }
   
8. // Update is called once per frame
   
9. void Update () {
   
10. }</div>

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1. <div>//这个用来做碰撞检测
   
2. void OnCollisionEnter(Collision obj)
   
3. {
   
4. Debug.Log("Hit"+ obj.gameObject.name);
   
5. }
   
6. //这个用来做trigger
   
7. void OnTriggerEnter(Collider obj)
   
8. {
   
9. Debug.Log("Trigger"+ obj.gameObject.name);
   
10. }
    
11. }</div>

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