Version: 2019.1
public Collider2D collider ;


The incoming Collider2D involved in the collision with the otherCollider.

This collider is attached to the Collision2D.rigidbody.

See Also: Collider2D and Rigidbody2D.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void OnCollisionEnter2D(Collision2D coll) { // If the Collider2D component is enabled on the collided object if (coll.collider == true) { // Disables the Collider2D component coll.collider.enabled = false; } } }