MonoBehaviour.OnCollisionEnter 当进入碰撞

function OnCollisionEnter (collisionInfo : Collision) : void


OnCollisionEnter is called when this collider/rigidbody has begun touching another rigidbody/collider.


In contrast to OnTriggerEnter, OnCollisionEnter is passed the Collision class and not a Collider . The Collision class contains information about contact points, impact velocity etc. If you don't use collisionInfo in the function, leave out the collisionInfo parameter as this avoids unneccessary calculations. Note that collision events are only sent if one of the colliders also has a non-kinematic rigid body attached.


using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	void OnCollisionEnter(Collision collision) {
		foreach (ContactPoint contact in collision.contacts) {
			Debug.DrawRay(contact.point, contact.normal, Color.white);
		if (collision.relativeVelocity.magnitude > 2)


function OnCollisionEnter(collision : Collision ) {
	// Debug -draw all contact points and normals
	// 绘制所有接触点和法线
	for (var contact : ContactPoint in collision.contacts)
		Debug.DrawRay (contact.point, contact.normal, Color.white );

	// Play a sound if the coliding objects had a big impact.
	// 如果碰撞体有较大冲击就播放声音
	if (collision.relativeVelocity.magnitude > 2)

OnCollisionEnter can be a co-routine, simply use the yield statement in the function.


Page last updated: 2011-1-2