Game Object Material#

using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Pool;
using VisualScript.Icons;

namespace VisualScript.Runtime
{
    [Get]

    [Title("Game Object Material")]
    [Category("Game Object/Game Object Material")]

    [Description("The Material used by the Renderer component of a Game Object")]
    [Image(typeof(IconMaterial), ColorTheme.Type.Blue, typeof(BadgeCubeOutline))]

    [Parameter("Game Object", "The Game Object the Material is read from")]
    [Parameter("Index", "Which of the Materials of the Renderer is returned")]

    [Note("Returns the shared Material asset, not the instance the Renderer may have created")]

    [Keywords("Renderer", "Mesh", "Shared", "Shader", "Component", "Read")]

    [Serializable]
    public class TypeMaterialGameObject : TypeMaterial
    {
        [SerializeField] private GetGameObject m_GameObject = new GetGameObject();
        [SerializeField] private GetInteger m_Index = new GetInteger(0);

        public override Material Get(Args args)
        {
            GameObject gameObject = this.m_GameObject.Get(args);
            if (gameObject == null) return null;

            if (!gameObject.TryGetComponent(out Renderer renderer)) return null;

            int index = this.m_Index.GetInt(args);
            if (index < 0) return null;
            if (index == 0) return renderer.sharedMaterial;

            List<Material> materials = ListPool<Material>.Get();

            try
            {
                renderer.GetSharedMaterials(materials);

                Material result = index < materials.Count ? materials[index] : null;

                return result;
            }
            finally
            {
                ListPool<Material>.Release(materials);
            }
        }

        public override string ToString()
        {
            return $"{this.m_GameObject} Material";
        }

        protected override SubscriptionMode Subscription => SubscriptionMode.OnChange;
    }
}