planeChanging

using UnityEngine;
using System.Collections.Generic;

//[ExecuteInEditMode()]
public class PlaneManipulation : MonoBehaviour {

    Ray ray;
    RaycastHit hit;

    Mesh mesh;
    private Vector3[] vertices;
    public float rayLength;


    //public LayerMask planeLayer;

    private float yOffset;
    void Start()
    {
        //mesh = GetComponent<MeshFilter>().mesh;

        //Debug.Log("count = " + mesh.vertexCount);

       // vertices = mesh.vertices;

       // ChangeMesh();

    }

    void ChangeMesh() {
        mesh = GetComponent<MeshFilter>().sharedMesh;
        //mesh.Clear();
        vertices = mesh.vertices;

        //using only the first row of the vertices from the plane
        for (int i = 0; i < 11; i++)
        {

            Vector3 vert = transform.TransformPoint(vertices[i]);
            //ray = new Ray(vert,Vector3.up);
            //Debug.Log("bitch");

            Physics.Linecast(vert, 100 * Vector3.up, out hit);
            Debug.DrawRay(vert, Vector3.up);

            vert.y = hit.point.y;

            //vertices[i].y = hit.point.y;
            vertices[i] = transform.InverseTransformPoint(vert);

        }

        mesh.vertices = vertices;

        mesh.RecalculateNormals();
        mesh.RecalculateBounds();
    }


    void Update() {

        ChangeMesh();

    }


}