CollidingObject.OnTriggerExit2D C# (CSharp) Method

    public virtual void OnTriggerExit2D(Collider2D coll)
    {
        // add neighboring CollidingObjects
        CollidingObject collObj = coll.GetComponent<CollidingObject>();
        if (collObj!=null && neighbors.Contains(collObj))
            neighbors.Remove(collObj);

        // handle exiting water
        Water water = coll.gameObject.GetComponent<Water>();
        if (water!=null)
            inwaters.Remove(water);

        // handle detaching
        if (collObj!=null && collObj==attachedTo) {
            //print("detatching from "+attachedTo.name);
            isMovable = true;
            Vector3 velocity = attachedTo.GetVelAtPoint(transform.position);
            Vector3 velocity2 = -accelMult*curSpeed*GetVelAtPoint(attachedTo.transform.position).normalized;
            this.velocity = velocity + velocity2;
            attachedTo = null;
            if (this is PlayerGear && collObj is Gear)
                (collObj as Gear).hasPlayerGear = false;
        }
    }