How to disable multiple renderer in gameobjects children

Questions & Answers
1

Hey, I need to toggle multiple Mesh Renderer which are all children of an game object per MouseDown.

Here you can see a picture of my scene:

111663-unbenannt.jpg
111663-unbenannt.jpg1920×989 195 KB

All the houses on the tables should disappear if I click on one of them. I tried to find a solution for several hours now and came up with this script:

using UnityEngine;
using System.Collections;

public class clickonoffmulti : MonoBehaviour
{

    void OnMouseDown()
    {
        gameObject.GetComponentInChildren<Renderer>().enabled = !gameObject.GetComponentInChildren<Renderer>().enabled;
    }
}

For that, I put all the houses as children under a simple cube (as hitbox for clicking), but only the Mesh Renderer of the cube itself turns on and off. Is there a way to click on any of the houses and turn them all on and off at the same time? where should I place the script for that purpose?

Sorry for my noob question, I started with C# in Unity just some days ago;)

2

As a temporary solution I put this code on each house and toggle them all on and off with GetKeyDown:

using UnityEngine;
using System.Collections;

public class clickonoffmulti : MonoBehaviour
{

    void Update()
    {
        if (Input.GetKeyDown(KeyCode.H))
        gameObject.GetComponent<Renderer>().enabled = !gameObject.GetComponent<Renderer>().enabled;
    }
}

Would still be nice to know how to toggle them all on and off with a mouse click on any of them;)