using System.Runtime.CompilerServices;
using UnityEngine;

namespace MTAssets.UltimateLODSystem.MeshSimplifier.Internal
{
	internal class BlendShapeContainer
	{
		private readonly string shapeName;

		private readonly BlendShapeFrameContainer[] frames;

		public BlendShapeContainer(BlendShape blendShape)
		{
			shapeName = blendShape.ShapeName;
			frames = new BlendShapeFrameContainer[blendShape.Frames.Length];
			for (int i = 0; i < frames.Length; i++)
			{
				frames[i] = new BlendShapeFrameContainer(blendShape.Frames[i]);
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public void MoveVertexElement(int dst, int src)
		{
			for (int i = 0; i < frames.Length; i++)
			{
				frames[i].MoveVertexElement(dst, src);
			}
		}

		[MethodImpl(MethodImplOptions.AggressiveInlining)]
		public void InterpolateVertexAttributes(int dst, int i0, int i1, int i2, ref Vector3 barycentricCoord)
		{
			for (int j = 0; j < frames.Length; j++)
			{
				frames[j].InterpolateVertexAttributes(dst, i0, i1, i2, ref barycentricCoord);
			}
		}

		public void Resize(int length, bool trimExess = false)
		{
			for (int i = 0; i < frames.Length; i++)
			{
				frames[i].Resize(length, trimExess);
			}
		}

		public BlendShape ToBlendShape()
		{
			BlendShapeFrame[] array = new BlendShapeFrame[frames.Length];
			for (int i = 0; i < array.Length; i++)
			{
				array[i] = frames[i].ToBlendShapeFrame();
			}
			return new BlendShape(shapeName, array);
		}
	}
}