Proximity script

Hi All,

I have the following script which works but it only fires once. If i start the camera close up and move away it fires but then when I move close again it doesn't fire. If I start the camera far away and move close it fires but then when I move away it doesn't fire again. I thought the 'function Update' would mean that it ran continuously.

Can anyone explain this?

Code (csharp):

1. var cam : Transform;
2.  
3. function Update () {
4.  
5.     var dist = Vector3.Distance(cam.position, transform.position);
6.    
7.     if (dist<50){
8.         Debug.Log ("Close up");  
9.         }
10.        
11.     if (dist>50){
12.         Debug.Log ("Far away");
13.     }
14. }

Many thanks

 

Is this script attached to your camera? Also what's the position in cam?

 

Hi,

This script is attached to a box which will hopefully detect when the camera is within range. The cam variable is the main camera in the scene and the cam.position is the position of the camera. Like I say it works once but then seems to become inactive once it has fired.

I would prefer to leave the script on the object as I will eventually have a lot of objects that will need this script on them which will be triggered when the camera is within range.

thanks

 

Pretty weird, assuming that this is the only script on the boxes. Or are there any other scripts?

 

The only logical thing that could disable a script would be when a component or gameobject goes inactive or is destroyed. Make sure that does not happen. This code is too simple not to work :S

 

That is the only script in the whole scene! I set up a new scene just to sort out this script. I tried it with OnTriggerEnter too and the same thing happened. It would fire once and then nothing.

Strange!

 

Something about that cam variable doesn't seem right...just as an experiment try using Camera.mainCamera.transform maybe?

 

I guess, it works, but "Collapse" button in Console window is pressed, so you don't see the repeating messages.

 

alexzzzz!!!!! You're a genius!

Either that or I'm an idiot..... probably both.

Thanks everybody.

 

Maybe you could also put in some more debug code to print the cam position, transform position and distance to see how values change over time. Also specify the type of the dist variable, just to make sure.

edit: alexzzzz seems to have the most applicable explanation for the phenomenon