using CommonUI_Unity3D.Impl;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

namespace CommonUnity3D.UGUI
{
    [DisallowMultipleComponent, ExecuteInEditMode, RequireComponent(typeof(CanvasRenderer)), RequireComponent(typeof(RectTransform))]
    public class GrayMaterialModifier : UIBehaviour, IMaterialModifier
    {
        protected Material gray_mat;

        public virtual Material GetModifiedMaterial(Material baseMaterial)
        {
            if (gray_mat == null)
            {
                gray_mat = new Material(baseMaterial);
                gray_mat.SetFloat("_Gray", 1);
                gray_mat.SetPass(0);
            }
            return gray_mat;
        }

        protected override void OnDestroy()
        {
            if (gray_mat != null)
            {
                Material.Destroy(gray_mat);
            }
            base.OnDestroy();
        }
    }
    
}