//Solarnrg's untested code

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using UnityEngine;

    public class MuMechModuleDrill : PartModule
    {
            GameObject rock1, rock2, rock3;
            static double spawnTimer = 0;


            public void FixedUpdate()
            {

                    if (vessel == null)
                    {
                            return;
                    }

                    if (!rock1)
                    {
                            rock1 = PartReader.Read(KSPUtil.ApplicationRootPath + "Parts/mumech_drill/rock1/", "model", ".mu");
                            rock1.name = "rock1";
                            rock1.transform.position = new Vector3(1e10f, 1e10f, 1e10f);

                            rock2 = PartReader.Read(KSPUtil.ApplicationRootPath + "Parts/mumech_drill/rock2/", "model", ".mu");
                            rock2.name = "rock2";
                            rock2.transform.position = new Vector3(1e10f, 1e10f, 1e10f);
                            rock3 = PartReader.Read(KSPUtil.ApplicationRootPath + "Parts/mumech_drill/rock3/", "model", ".mu");
                            rock3.name = "rock3";
                            rock3.transform.position = new Vector3(1e10f, 1e10f, 1e10f);
                    }

                    if (drillHitTerrain())
                    {

                            spawnTimer += TimeWarp.fixedDeltaTime;
                            if (spawnTimer >= 1)
                            {
                                    print("Spawning rock!");             		int whichrock = UnityEngine.Random.range(1,3);

		switch whichrock

case 1:

                                    GameObject newRock = (GameObject)GameObject.Instantiate(rock1);newRock.transform.position = part.transform.position + UnityEngine.Random.onUnitSphere;
                                    newRock.transform.rotation = UnityEngine.Random.rotation;
                                    newRock.AddComponent<Rigidbody>();
                                    newRock.rigidbody.AddForce(UnityEngine.Random.onUnitSphere * UnityEngine.Random.value * 10, ForceMode.Impulse);
                                    spawnTimer = 0;

case 2:

                                    GameObject newRock = (GameObject)GameObject.Instantiate(rock2);newRock.transform.position = part.transform.position + UnityEngine.Random.onUnitSphere;
                                    newRock.transform.rotation = UnityEngine.Random.rotation;
                                    newRock.AddComponent<Rigidbody>();
                                    newRock.rigidbody.AddForce(UnityEngine.Random.onUnitSphere * UnityEngine.Random.value * 10, ForceMode.Impulse);
                                    spawnTimer = 0;

case 3:

                                    GameObject newRock = (GameObject)GameObject.Instantiate(rock3);newRock.transform.position = part.transform.position + UnityEngine.Random.onUnitSphere;
                                    newRock.transform.rotation = UnityEngine.Random.rotation;
                                    newRock.AddComponent<Rigidbody>();
                                    newRock.rigidbody.AddForce(UnityEngine.Random.onUnitSphere * UnityEngine.Random.value * 10, ForceMode.Impulse);
                                    spawnTimer = 0;
                            }
                    }
                    else
                    {
                            spawnTimer = 0;
                    }
                    base.OnFixedUpdate();
            }


            private bool drillHitTerrain()
            {
                    Transform drill = base.transform.FindChild ("model").FindChild("Cylinder");
                    if(Physics.Raycast (drill.position, Vector3.forward,0.85f,1 << 15))
                    {
                            drill.transform.Rotate(Vector3.up * (600f*TimeWarp.deltaTime));
                            return true;
                    }
                    else
                    {
                            return false;
                    }
            }
    }