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Question by Mochna · Feb 07, 2019 at 03:12 AM · c#collidertrigger

How do I only let one collider be affected at a time when using OnTriggerEnter?

This sounds like a vague question, but hear me out. I am creating a game where you can drop items using Q and pick them up with E if you are inside its trigger collider. It is complicated, but in short, I use OnTriggerEnter to switch a bool from false to true, and OnTriggerExit to turn it to false. This works fine, but the moment my player is inside of two triggers at the same time and I try picking them up, my player picks up both at the same time and glitches out a lot of other things. I would like only one item to be picked up each time I press E. Is there a way to only use one trigger at a time in OnTriggerEnter? Thanks!

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Answer by carl010010 · Feb 07, 2019 at 03:47 AM

@Mochna What I would do is onTriggerEnter add the object you want to pick up to a list of objects. and on TriggerExit remove the object from the list.

Then in your update method when the player Presses E add that object to your inventory

 List<GameObjects> list = new List<GameObjects>();
 
 void OnTriggerEnter()
 {
     //Get your object
     //Add it to the list
     list.Add(object);
 }
 
 void OnTriggerExit()
 {
     //Get your object
     //Add it to the list
     list.Remove(object);
 }
 
 void Update()
 {
     //When the player presses E
     {
         //Add the object ontop of the list to your inventory
         inventory.Add(list[list.length-1]);
         list.Remove(list[list.length-1]);
     }
 }
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avatar image Mochna · Feb 07, 2019 at 05:13 PM 1
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Thank you!

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