Enemy

using UnityEngine;
using System.Collections;

public class Enemy : MonoBehaviour {

    public Transform TS;
    public float minSpeed = 3f, maxSpeed = 8f, currentSpeed;
    public float llocation = -9.15f, rlocation = 9.15f, ylocation = 7.65f;

    // Use this for initialization
    void Start () {

        TS = transform; //Cache Transform.

        currentSpeed = Random.Range(minSpeed, maxSpeed); //Randomize enemy speed;
        TS.position = new Vector3 (Random.Range (llocation, rlocation), ylocation, 0); //Randomize enemy spawn point.
    }

    // Update is called once per frame
    void Update () {
        TS.position += (Vector3.down * currentSpeed * Time.deltaTime); //Bring enemy down the screen.
        if (TS.position.y < -5.35f) {
            TS.position = new Vector3 (Random.Range (llocation, rlocation), ylocation, 0);
            currentSpeed = Random.Range(minSpeed, maxSpeed);
        } //end new spawnpoint and speed.
    }

    void OnTriggerEnter(Collider collider)
    {
        if (collider.CompareTag("Laser") || collider.CompareTag("Player")) { //Tag is name of prefab.
        //When the laser hits the enemy, destroy the laser and the enemy.
            Destroy(this.gameObject);
        }
        if (Player.score < 500 || Player.playerLives >= 1) {
            for (int enemies = 0; enemies < 3; enemies++) {
            Vector3 nposition = new Vector3 (Random.Range (llocation, rlocation), ylocation, 0);
            Instantiate(this, nposition, Quaternion.identity);
            TS.position += (Vector3.down * currentSpeed * Time.deltaTime);
            }
        }
    }
}