// Creates a game object named "Player" and
// adds a rigidbody and box collider to it.
player = new GameObject ("Player");
player.AddComponent ("Rigidbody");
player.AddComponent ("BoxCollider");

using UnityEngine;
using System.Collections;
   
public class MouseInteraction : MonoBehaviour {
   
         GameObject minePrefab;
          
         // Use this for initialization
         void Start () {
                 minePrefab = Resources.Load("minePrefab") as GameObject;
         }
          
         // Update is called once per frame
         void Update () {
                 Ray ray = Camera.mainCamera.ScreenPointToRay(Input.mousePosition);
                 RaycastHit hit = new RaycastHit();
                 if(Input.GetMouseButtonDown(0))
                 {
                         if(Physics.Raycast(ray,out hit))
                         {
                    //We've hit something
                    if(hit.collider.gameObject.name.Equals("ground"))
                    {
                    //We've hit the ground
                    CreateMine(hit.point);
                    }
                         }
                 } else if(Input.GetMouseButtonDown(1)) {
                         if(Physics.Raycast(ray,out hit))
                         {
                    //We've hit something
                    if(hit.collider.gameObject.name.Equals("minePrefab(Clone)"))
                    {
                    //We've hit a mine
                    GameObject.Destroy(hit.collider.gameObject);
                    }
                         }
                 }
         }
          
         void CreateMine(Vector3 pos)
         {
                 Instantiate(minePrefab, pos, Quaternion.identity);
         }
}