为什么变量的新值不影响 void update in unity?

Why isn't the new values for the variable not taking affect in void update in unity?

我试图让一个物体在撞到另一个物体时改变方向,但由于某种原因,当它撞到一个物体时,原来的物体静止不动。

using UnityEngine;
using System.Collections;
public class playerController : MonoBehaviour {

public float c =0;
public float a =0; 
public float d =1;
private Rigidbody rb;

void Start ()
{

    rb = GetComponent<Rigidbody>();
}
void OnTriggerEnter(Collider other) {

    a = 0;
    c = -1;
    d = 0;


}

void fixedUpdate ()
{


    transform.Translate (c*1f, a*1f, d*1f);
}

}

只需尝试 "FixedUpdate" 而不是 "fixedUpdate"。