using UnityEngine;  
using System.Collections;  

public class lesorub : MonoBehaviour {  
  private float dist = 5f;
  void Example() {
   gameObject.tag = "terrain";
  }
   
  // Update is called once per frame  
  void Update () {  
   Ray ray = new Ray (transform.position, transform.forward);  
   RaycastHit hit;  
    
   if(Physics.Raycast(ray,out hit,dist))  
   {  
    if(Input.GetMouseButtonDown(0))  
     Destroy(hit.collider.gameObject);  
   }  
  }  
}