MonoBehaviour.OnTriggerStay2D(Collider2D)

Parameters

Description

Sent once per physics update when another object is within a trigger collider attached to this object (2D physics only).

Further information about the other collider is reported in the Collider2D parameter passed during the call.

Note: Trigger events will be sent to disabled MonoBehaviours, to allow enabling Behaviours in response to collisions.

Additional resources: Collider2D class, OnTriggerEnter2D, OnTriggerExit2D.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    void OnTriggerStay2D(Collider2D other)
    {
        other.attachedRigidbody.AddForce(-0.1F * other.attachedRigidbody.velocity);
    }
}