Raycast Shooting doesn't work.

hey everybody, i'm trying to make an fps multiplayer game, so i created a raycast shooting script, but when i run the game, and try to shoot, it doesn't do anything and sends this error in the console:

NullRefrenceException: Object refrence not set to an instance of an object
RayCastShooting.Update () (at Assets/blabalbalbalbalbla/blabba/RayCastShooting.js:9)

here is the script of the RayCastShooting:

Code (JavaScript):

1. #pragma strict
2.  
3. var Effect : Transform;
4. var TheDammage = 100;
5. var line : LineRenderer;
6. function Update () {
7.    
8.     var hit : RaycastHit;
9.     var ray : Ray = Camera.main.ScreenPointToRay(Vector3(Screen.width*0.5, Screen.height*0.5, 0));
10.    
11.     if (Input.GetButton("Fire1"))
12.     {
13.         if (Physics.Raycast (ray, hit, 100))
14.         {
15.             var particleClone = Instantiate(Effect, hit.point, Quaternion.LookRotation(hit.normal));
16.             Destroy(particleClone.gameObject, 2);
17.             hit.transform.SendMessage("ApplyDammage", TheDammage, SendMessageOptions.DontRequireReceiver);
18.             Debug.Log("Bam!");
19.         }
20.     }
21.    
22.    
23. }

i inserted the code to my main camera.
please help

 

You probably don't have a main camera in your scene. Select the camera and make sure it has the "Main Camera" tag.
If the script is attached to the camera then you can use camera.ScreenPointToRay instead of Camera.main.ScreenPointToRay and it should fix your problem.

 

Thanks!!! it worked. Thank you so much

 

Heeii, I did every step what was needed and still it doesn't do it. I don't know what is wrong and what I can do about it.
Do you guys know?

 

necro'ing an old thread and not providing any details or code which tells us what you've done isn't going to get very far...