This is the code that handles Crates. Notice how it inherits from ClickableParent, giving it the ability to be clicked on.

Crate.cs

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

public class Crate : ClickableParent
{
    public List<GameObject> ItemsInside = new List<GameObject>(); //A list is a collection of objects that can be accessed through a numbered list. In this case it holds our prefabs (Picture 1)
    public int NumberOfItemsToSpawn; //This decides how many times we loop in OnClick(); IE it decides how many objects to spawn
    public float MinimumDistance;
    public AudioClip Clip;
    public AudioSource Source;

    void Start(){
        Source = GameObject.Find("Player").GetComponent<AudioSource>(); 
    }

    public override void OnClick(Vector3 ClickPosition)
    {
        if(Vector3.Distance(ClickPosition, transform.position) <= MinimumDistance){
            for (int i = 0; i < NumberOfItemsToSpawn; i++) //We loop through this NumberOfItemsToSpawn times
        {
            //We make a gameobject x equal to a copied version of a randomly selected prefab from the list (ItemsInside[Random.Range(0, ItemsInside.Count)])
            //Instantiate is a built in Unity command that takes in a gameobject, vector3, and a rotation and copies that gameobject with that position and rotation
            GameObject x = Instantiate(ItemsInside[Random.Range(0, ItemsInside.Count)], transform.position, Quaternion.identity) as GameObject;
            //We then add an Explosiion force which we do with a built in function, giving it a satisyfying pop when the crate is clicked
            x.GetComponent<Rigidbody>().AddExplosionForce(10, transform.position, 5);

        }
        Source.PlayOneShot(Clip);
        Destroy(gameObject);
        }
        
    }
}