[2D] Is it possible to un-ignore collisions between colliders?

Question

Hello everyone!

I am creating a game in which, at certain moment, I need to make the player ignore certain colliders, for this I have implemented this simple code based on game object tag:

 public GameObject player;
 GameObject[] allGameObjects;
 
 allGameObjects=GameObject.FindGameObjectsWithTag("tag_GameObjectToIgnore");
             foreach (GameObject GameObjectToIgnore in allGameObjects)
                 Physics2D.IgnoreCollision(player.GetComponent<Collider2D>(), GameObjectToIgnore.GetComponent<Collider2D>());

Then, after some seconds I need the player to collide again with all those "GameObjectToIgnore". Is there any method to undo the "Physics2D.IgnoreCollision"?

Thanks!

Answer 1

Best Answer

Answer by ShadoX · Aug 10, 2019 at 08:11 PM

There's a third parameter in the Physics2D.IgnoreCollisions(.., .., bool) method that seems like what you're looking for https://docs.unity3d.com/ScriptReference/Physics2D.IgnoreCollision.html

I'm assuming that you should just set that parameter to false, whenever you want the Collisions to be working again.. so basically:

 allGameObjects=GameObject.FindGameObjectsWithTag("tag_GameObjectToIgnore");
              foreach (GameObject GameObjectToIgnore in allGameObjects)
                  Physics2D.IgnoreCollision(player.GetComponent<Collider2D>(), GameObjectToIgnore.GetComponent<Collider2D>(), false);

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Santako · Aug 12, 2019 at 10:10 PM 0

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Thanks, I didn't realize about this third parameter. This does exactly what I was looking for.

[2D] Is it possible to un-ignore collisions between colliders?

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