Copy Spline Mesher Scale

using System;
using UnityEngine;

namespace sc.modeling.splines.runtime.auxiliary
{
    [ExecuteAlways]
    //Copies the SplineMesher scale data from the source to the destination
    public class CopySplineMesherScale : MonoBehaviour
    {
        public SplineMesher source;
        public SplineMesher destination;

        private void Reset()
        {
            destination = GetComponent<SplineMesher>();
        }

        private void OnEnable()
        {
            SplineMesher.onPreRebuildMesh += OnPreRebuild;
        }

        private void OnDisable()
        {
            SplineMesher.onPreRebuildMesh -= OnPreRebuild;
        }

        private void OnPreRebuild(SplineMesher instance)
        {
            //Scale data is tailored to specific splines, so only allow copying if both components actually use the same splines.
            if (source.splineContainer == destination.splineContainer)
            {
                destination.scaleData = source.scaleData;
            }
        }
    }
}