using UnityEngine;
using UnityEditor;

[CustomEditor(typeof(MeshRenderer))]
public class MeshRendererEditor : Editor
{
    MeshRenderer meshRenderer;
    public override void OnInspectorGUI()
    {
        base.OnInspectorGUI();
        meshRenderer = target as MeshRenderer;

        string[] layerNames = new string[SortingLayer.layers.Length];
        for (int i = 0; i < SortingLayer.layers.Length; i++)
            layerNames[i] = SortingLayer.layers[i].name;

        int layerValue = SortingLayer.GetLayerValueFromName(meshRenderer.sortingLayerName);
        layerValue = EditorGUILayout.Popup("Sorting Layer", layerValue, layerNames);

        GUI.changed = false;

        SortingLayer layer = SortingLayer.layers[layerValue];
        meshRenderer.sortingLayerName = layer.name;
        meshRenderer.sortingLayerID = layer.id;
        meshRenderer.sortingOrder = EditorGUILayout.IntField("Order in Layer", meshRenderer.sortingOrder);

        if (GUI.changed)
        {
            EditorUtility.SetDirty(meshRenderer);
            AssetDatabase.SaveAssets();
            AssetDatabase.Refresh();
        }

    }
}