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Question by Digital-Phantom · Jan 30, 2015 at 05:23 PM · javascriptupdateontriggerenterontriggerexitprint

OnTriggerEnter only recognised once, no matter how many times I enter ? (Solved)

I have a fairly simple script that prints a statement when my object is triggered and prints another statement when the object is no longer triggered -

 #pragma strict
 
 var beingMined : boolean; //determine if resource is currently being mined
 public var oreAmount : int = 100;
 
 function Update()
 {
     if(oreAmount <= 0)
     {
         ResourceDepleted();
     }
 }
 
 function OnTriggerEnter(thing: Collider)
 {
     if (thing.tag == "Harvester")
     {
            print("Now Mining");
       }
 }
 
 function OnTriggerExit(thing: Collider)
 {
     if (thing.tag == "Harvester")
     {
            print("Mining Finished");
            oreAmount -= 10;
       }
 }
 
 function ResourceDepleted()
 {
     print("Resource Depleted");
     oreAmount = 0;
 }
 

My problem is that no matter how many times the object is triggered again it won't print the correct statement ? (it always just says 'Mining Finished')

Why doesn't the object print the correct statement ???

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avatar image Digital-Phantom · Jan 30, 2015 at 05:35 PM 0
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The oreAmount -= 10 part of the OnTriggerExit works fine. Watching it in the Inspector it decreases every time. Which confuses me more as that part is recognised each time ?

avatar image Digital-Phantom · Jan 31, 2015 at 07:13 AM 0
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Nobody got any ideas?

avatar image tanoshimi · Jan 31, 2015 at 12:45 PM 0
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Your description is unclear (particularly the use of the word "again")....you mean OnTriggerEnter is never triggered, OnTriggerExit is always triggered? Or OnTriggerEnter only works once?

avatar image Digital-Phantom · Jan 31, 2015 at 02:29 PM 0
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Ok sorry, try this...

The first time OnTriggerEnter is triggered it prints "Now $$anonymous$$ining"

The first time OnTriggerExit is triggered it prints "$$anonymous$$ining Finished"

BUT... it doesn't matter how many times OnTriggerEnter is triggered again it still only shows "$$anonymous$$ining Finished" and never re-prints the "Now $$anonymous$$ining" statement ?

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Answer by DESIMA · Jan 31, 2015 at 07:12 PM

say you have two objects and both of them have a rigidbody and triggers. Then depending on who exits first, should be getting the message.

you can try putting script on both objects with rigidbodies, then you should get some response.

are you sure you collider have exited? it could be that it has not yet. Sometimes the triggering does not happen or gets detected when you think it should, so make something that is easy to test with, like two cubes and see how that works

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avatar image Digital-Phantom · Feb 02, 2015 at 03:46 PM 0
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You were right, it was due to which object left/moved first.

For testing purposes I was physically moving the destination object away. As you said the OnTriggerEnter was working because the main object was triggering it. It was me that was causing the OnTriggerExit and as such it wasn't being recognised.

Anyway, all solved now. $$anonymous$$any thanks

avatar image DESIMA · Feb 02, 2015 at 03:49 PM 0
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Great that it works now :)

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