using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class GroundDown : MonoBehaviour {
    public float height = 1.0f;
    void Update () {
        RaycastHit hit;
        Vector3 pos = new Vector3 ( transform.position.x, transform.position.y + height, transform.position.z );
        if ( Physics.Raycast ( pos, -Vector3.up, out hit ) ) {
            if ( hit.distance - height < 0.0f ) {
                transform.position = hit.point;
            } else if ( hit.distance - height > 0.1f ) {
                transform.position -= Vector3.up * 0.1f;
            }
        }
    }
}