MegaBagar/FreeCam/Assets/Scripts/Item.cs

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

[Serializable]
public class Item
{
    public GameObject Prefab { get; private set; }
    public int Amount { get; private set; }
    private Sprite sprite;

    public Item(GameObject _prefab, int _amount)
    {
        Prefab = _prefab;
        Amount = _amount;
        InitiateSprite();
    }

    public Sprite GetSprite()
    {
        return sprite;
    }

    private void InitiateSprite()
    {
        Texture2D texture = UnityEditor.AssetPreview.GetMiniThumbnail(Prefab);
        Rect rect = new Rect(0, 0, texture.width, texture.height);
        Vector2 pivot = new Vector2(0.5f, 0.5f);
        sprite = Sprite.Create(texture, rect, pivot);
    }

    public void Increase(int _amount)
    {
        Amount += _amount;
    }

    public void Decrease(int _amount)
    {
        Amount -= _amount;
    }

    public bool IsEmpty()
    {
        return Amount <= 0;
    }
}