TutoUnity [5]

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class SlidManager : MonoBehaviour {

    public GameObject prefabs;
    public int slidNb;
    public List<GameObject> slids;

    void Start () {
        slids = new List<GameObject> ();
        while (slidNb < 5) {
            AddSlid ();
        }
    }

    public void AddSlid(){
        if (slidNb < 10) {
            slids.Add (Instantiate (prefabs, transform.position, transform.rotation, transform) as GameObject);
            slids [slidNb].GetComponent <Image> ().color = Random.ColorHSV (0, 1, 0.5f, 1, 1, 1);
            slidNb++;
        }
    }
    public void RemoveSlid(){
        if (slidNb > 0) {
            int lenght = slids.Count;
            slids.Remove (slids [lenght - 1]);
            Destroy (transform.GetChild (lenght - 1).gameObject);
            slidNb--;
        }
    }
}