Raycast hit collider issue ?

Hi
I don't know why the raycast not running well when hit enemy ray1_bool turn true after the enemy moves away from the ray it not turn false !!? Here is my script.

Code (CSharp):

1.         RaycastHit hit2;
2. // rays1 = gameboject
3.         Ray raytall = new Ray(rays1.transform.position,rays1.forward);
4.         Debug.DrawRay(rays1.transform.position, rays1.forward * 10,Color.cyan);
5.         if (Physics.Raycast(raytall,out hit2,10)) {
6.            
7.             if (hit2.collider.CompareTag("enemy")) {
8.                 ray1_bool = true;
9.             }
10.             else {
11.                      // not work
12.                 ray1_bool = false;
13.                   }
14.  
15.             }

 

Mentally run through what happens in that code when the ray hits nothing. Does line 12 ever get hit?

Spoiler

At line 5, if the ray hits nothing then the whole block from lines 6 to 15 is skipped. That means that the tag comparison on line 7 never gets run, so it doesn't fail, and its "else" block is irrelevant.

Probably you need to make your else block come from the line 5 branch rather than the line 7 branch.

 

Maybe you right. but what i did to solve this issue, i remove the 12 line to above first line and worked
Thank you

 

Yes, that will also work, because you're now resetting it to "false" before every check. It's a reasonable enough approach. However, you really ought to spend the time to understand how your code works - there should be no "maybe" about why it didn't work before or, more importantly, why it does work now.