garden_client/Assets/Script/Extension/ExtensionCollider.cs

using UnityEngine;

using System.Collections;

public static class ExtensionCollider
{
    public static void SetCollider(this Component comp, bool active)
    {
        BoxCollider2D collider = comp.GetComponent<BoxCollider2D>();

        if (collider)
        {
            collider.enabled = active;
        }
    }

    public static void SetCollider(this GameObject gameObject, bool active)
    {
        gameObject.GetComponent<BoxCollider2D>().enabled = active;
    }
}