Question How Can I Fix the Delay?

I add raycast front of the cars, If ray touched any car in front car will brake.But after braking cars waiting a bit to move again.

Code (CSharp):

1.    public void Start()
2.     {
3.         speed = Random.Range(25f, 40f);
4.      
5.  
6.     }
7.  
8.     // Update is called once per frame
9.     public void Update()
10.     {
11.        RaycastHit hit;
12.        if(Physics.Raycast(transform.position,transform.forward,out hit, 20))
13.         {
14.             if (hit.collider.tag == "EnemyCar")
15.             {
16.                 Debug.DrawLine(transform.position, hit.point);
17.                 hitDistance = hit.distance / 20;
18.             }
19.             else
20.             {
21.                 hitDistance = 1;
22.             }
23.         }
24.  
25.         transform.Translate(0, 0, 1 * speed * Time.deltaTime * hitDistance, Space.World);
26.  
27.     }

 

The way your code is written, hitDistance doesn't reset to a value of 1f until you get a Raycast hit on an object not tagged "EnemyCar". I believe if Raycast returns false, you need to set hitDistance to 1.

Code (CSharp):

1.    public void Start()
2.     {
3.         speed = Random.Range(25f, 40f);
4.    
5.  
6.     }
7.  
8.     // Update is called once per frame
9.     public void Update()
10.     {
11.        RaycastHit hit;
12.        if(Physics.Raycast(transform.position,transform.forward,out hit, 20))
13.         {
14.             if (hit.collider.tag == "EnemyCar")
15.             {
16.                 Debug.DrawLine(transform.position, hit.point);
17.                 hitDistance = hit.distance / 20;
18.             }
19.             else
20.             {
21.                 hitDistance = 1;
22.             }
23.         }
24.         else
25.         {
26.             hitDistance = 1;
27.         }
28.  
29.         transform.Translate(0, 0, 1 * speed * Time.deltaTime * hitDistance, Space.World);
30.  
31.     }

I'd probably rewrite the above to not need to set hitDistance in 2 places, but you get the idea. Give it a try, see if it resolves the problem.

 

Yes, It is worked.Thank you so much.