using System;
using System.Collections;
using Convention;
using Dreamteck.Splines;
using UnityEngine;

namespace Demo.Game
{
    public class SplineTubeRenderer : BasicSplineRenderer<TubeGenerator>
    {
        public static SplineTubeRenderer Make()
        {
            return new GameObject().AddComponent<SplineTubeRenderer>();
        }

        public const bool DefaultIsDoubleSide = true;
        public const int DefaultSidesCount = 12;
        [Content] public bool IsDoubleSide = DefaultIsDoubleSide;
        [Content] public int SidesCount = DefaultSidesCount;

        protected override IEnumerator DoSomethingDuringApplyScript()
        {
            if (MyDefaultMaterial == null)
                MyDefaultMaterial = Resources.Load<Material>("Tube/Default");
            yield return base.DoSomethingDuringApplyScript();
        }

        public override void SetupMeshGenerator(TubeGenerator meshGenerater)
        {
            base.SetupMeshGenerator(meshGenerater);
            meshGenerater.doubleSided = IsDoubleSide;
            meshGenerater.sides = SidesCount;
        }

        public override IEnumerator UnloadScript()
        {
            yield return base.UnloadScript();
            // Reset
            {
                IsDoubleSide = DefaultIsDoubleSide;
                SidesCount = DefaultSidesCount;
            }
        }

        /// <summary>
        /// 禁用双面渲染，用于优化性能
        /// </summary>
        [Convention.RScript.Variable.Attr.Method]
        public void DisableDoubleSide()
        {
            IsDoubleSide = false;
        }

        /// <summary>
        /// 设置面数，越高越圆润
        /// </summary>
        /// <param name="sides"></param>
        [Convention.RScript.Variable.Attr.Method]
        public void SetSides(int sides)
        {
            SidesCount = Mathf.Min(3, sides);
        }
    }
}