如何使物体在进入Unity时向相反的方向弯曲

using UnityEngine;

public class BendObject : MonoBehaviour
{
    public float bendAmount = 1f; // 弯曲的程度
    public float bendRadius = 1f; // 弯曲的半径

    private Mesh mesh;
    private Vector3[] originalVertices;

    private void Start()
    {
        mesh = GetComponent<MeshFilter>().mesh;
        originalVertices = mesh.vertices;
    }

    private void Update()
    {
        Vector3[] vertices = new Vector3[originalVertices.Length];

        for (int i = 0; i < vertices.Length; i++)
        {
            Vector3 vertex = originalVertices[i];
            vertex.x += Mathf.Sin(vertex.y * bendAmount) * bendRadius;
            vertices[i] = vertex;
        }

        mesh.vertices = vertices;
        mesh.RecalculateBounds();
    }
}