Version: 2023.2
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Collision2D.collider

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public Collider2D collider;

Description

The incoming Collider2D involved in the collision with the otherCollider.

This collider is attached to the Collision2D.rigidbody.

Additional resources: 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; } } }