GameManager (I created this for both tanks) WIP

using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using PlayerInfo;
using EnemyInfo;

namespace Management
{
    public class GameManager : MonoBehaviour
    {
        public static int PlayerScore;
        public static int EnemyScore;
        public Text ScoreText;
        public Text GameText;
        public float StartDelay = 3f;
        public float EndDelay = 3f;
        public GameManager[] Tanks;

        PlayerManager PManage;
        EnemyManager EManage;
        WaitForSeconds StartWait;
        WaitForSeconds EndWait;
        GameManager RoundWinner;
        GameManager GameWinner;
        int RoundNumber;
        int Wins;

        void Awake ()
        {
            PlayerScore = 0;
            EnemyScore = 0;
        }

        public void Start ()
        {
            StartWait = new WaitForSeconds (StartDelay);
            EndWait = new WaitForSeconds (EndDelay);

            SpawnTanks ();

            StartCoroutine (GameLoop ());
        }

        void Update ()
        {
            ScoreText.text = "Round Wins: " + PlayerScore + " - " + EnemyScore;
        }

        public void SpawnTanks ()
        {
            PManage.PSpawn ();
            PManage.PSetup ();
            EManage.ESpawn ();
            EManage.ESetup ();
        }

        public IEnumerator GameLoop ()
        {
            yield return StartCoroutine (RoundStarting ());

            yield return StartCoroutine (RoundPlaying ());

            yield return StartCoroutine (RoundEnding ());

        }

        IEnumerator RoundStarting ()
        {
            ResetAllTanks ();
            DisableTankControl ();

            RoundNumber++;
            GameText.text = "ROUND: " + RoundNumber;

            yield return StartWait;
        }

        IEnumerator RoundPlaying ()
        {
            EnableTankControl ();

            GameText.text = string.Empty;

            while (!OneTankLeft ())
            {
                yield return null;
            }
        }

        IEnumerator RoundEnding ()
        {
            DisableTankControl ();

            RoundWinner = null;

            RoundWinner = GetRoundWinner ();

            if (RoundWinner != null)
                RoundWinner.Wins++;

            GameWinner = GetGameWinner ();

            yield return EndWait;
        }

        bool OneTankLeft ()
        {
            int numTanksLeft = 0;

            for (int i = 0; i < Tanks.Length; i++)
            {
                if (Tanks [i].Instance.activeSelf)
                    numTanksLeft++;
            }
        }

        GameManager GetRoundWinner ()
        {

        }

        GameManager GetGameWinner ()
        {

        }

        void ResetAllTanks ()
        {

        }

        void EnableTankControl ()
        {

        }

        void DisableTankControl ()
        {

        }
    }
}