mutliple collide between two objects

Unity Engine
1 
void OnTriggerEnter2D(Collider2D col){
        if (col.gameObject.tag == "Player") {
            Destroy(gameObject);
            GameControl.control.stamina += 1;
            Debug.Log("apple eaten");
        }
    }

i am new to Unity so i really trying hard to learn.

i created a function in a new class called applescript
if i want to create collision with a new element for example : a coin
i need to create a new class? or i should attach the same script for every coin\apple i spawn?

2

you can use your script for other gameobject. But you dont need attach the script to every apple. Just create prefab. Drag&Drop your "aplle " on this prefab. And then you can just spawn the clones of the prefab.

you can make your script universal. I mean, use public variables. So for your script, something like.

public float staminaChange;
public string whatObject;

void OnTriggerEnter2D(Collider2D col){
        if (col.gameObject.tag == "Player") {
            GameControl.control.stamina += staminaChange;
            Debug.Log(whatObject);
            Destroy(gameObject);
        }
    }

and now, you can attach the script to gameobject and adjust it.