OnTriggerEnter2D doubt.

Hi, I'm trying understand how this function works, my issue is:
I need to call this function on another class that is declared. Example:

Code (CSharp):

1. public class PlayerController : MonoBehaviour {
2. public bool test=true;
3. void Update() {
4. if(test)
5. Itemtrigger.OnTriggerEnter2D();
6.  
7.  
8. }
9. }

... and "OnTriggerEnter2D" is declared in another class, like :

Code (CSharp):

1. public class Itemtrigger : MonoBehaviour {
2.  
3. public static void OnTriggerEnter2D (Collider2D other) {
4.  
5.     }
6. }

When I tried to compile this, MonoDevelop gave me a error ("There is no argument given that corresponds to the required formal parameter 'other' of 'Itemtrigger.OnTriggerEnter2D(Collider2D)").

What is the right arguments to call this ?

 

Hi.
I thinkk That i can help you.
Under text you have a code. Checking "your tag" is optional, but if you delete this every tirigger Will be return 'obj enter in trigger'

Code (CSharp):

1.  void OnTriggerEnter2D(Collider2D col) {  
2. if(col.collider.tag=="yourtag") { test=true;}
3. }
4.  
5. void Update() {
6. if(test) print("obj enter in tirigger);
7. }

 

OnTriggerEnter2D is a function that is called every time a collider enters on a gameobject's 2D collider marked as trigger.
The propper way to use OnTriggerEnter2D is:

Code (CSharp):

1. public class ExampleClass : MonoBehaviour{
2. void OnTriggerEnter2D(Collider2D other)
3. {
4. Debug.Log("hi");
5. }
6. }

in a gameobject which has attached a 2D collider marked as trigger.


And by the way, you should remove the static keyword, cause it makes no sense (it would be as a "shared method" for all Itemtrigger instances, so everytime a collider enters on a certain object, the rest Itemtrigger's objects would execute OnTriggerEnter2D(), even if there aren't any colliders entering on its colliders. Obviously is not a desirable behaviour)