GameSystemUpdateManager.cs

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#pragma warning disable 0649
using UnityEngine;
using UnityEngine.SceneManagement;
using System.Collections;
using HKI.Core.Scenes;
using HKI.Core.GameEvents;

namespace HKI.Core.GameSystems
{
    public class GameSystemUpdateManager : MonoBehaviour
    {
        // Public variables
        [SerializeField] SceneLoader SceneLoader = null;

        [SerializeField] [Scene] string FailedInitScene = "";

        [SerializeField] GameEvent InitFinishedGameEvent = null;

        [SerializeField] GameSystem[] GameSystemsForInit;
        
        [SerializeField] TimeSystem TimeSystem = new TimeSystem();

        [SerializeField] GameSystem[] GameSystemsForUpdate;

        [SerializeField] GameSystem[] GameSystemsForFixedUpdate;

        [SerializeField] GameSystem[] GameSystemsForLateUpdate;

        [SerializeField] GameSystem[] GameSystemsForShutdown;

        // Private variables
        int gameSystemsForUpdateLenght = 0;
        int gameSystemsForFixedUpdateLenght = 0;
        int gameSystemsForLateUpdateLenght = 0;

        // Start function
        IEnumerator Start()
        {
            SceneManager.SetActiveScene(gameObject.scene);

            TimeSystem.Setup();

            if(GameSystemsForUpdate != null)
                gameSystemsForUpdateLenght = GameSystemsForUpdate.Length;

            if(GameSystemsForFixedUpdate != null)
                gameSystemsForFixedUpdateLenght = GameSystemsForFixedUpdate.Length;

            if(GameSystemsForLateUpdate != null)
                gameSystemsForLateUpdateLenght = GameSystemsForLateUpdate.Length;

            SceneLoaderController slc = FindObjectOfType<SceneLoaderController>();

            if(GameSystemsForInit != null)
            {
                int gameSystemsForInitLenght = GameSystemsForInit.Length;
                for(int i = 0; i < gameSystemsForInitLenght; i++)
                {
                    SceneLoader.ChangeText(GameSystemsForInit[i].GetInitInfoTextLocalization);

                    yield return StartCoroutine(GameSystemsForInit[i].Init());
                    
                    if (!GameSystemsForInit[i].InitSuccessful)
                    {
                        SceneLoader.ChangeText(GameSystemsForInit[i].GetInitErrorInfoTextLocalization);

                        Debug.LogError("(GameSystemUpdateManager) failed to initialize (GameSystem)" + GameSystemsForInit[i].name);

                        if(!string.IsNullOrEmpty(FailedInitScene))
                        {
                            if(SceneLoader != null)
                                SceneLoader.LoadSceneDirect(FailedInitScene);
                            else
                                SceneManager.LoadScene(FailedInitScene);
                        }

                        yield break;
                    }
                }
            }
            
            if (InitFinishedGameEvent != null)
                InitFinishedGameEvent.Raise();
        }

        void OnDestroy()
        {
            if(GameSystemsForShutdown != null)
            {
                int gameSystemsForShutdownLenght = GameSystemsForShutdown.Length;
                for (int i = 0; i < gameSystemsForShutdownLenght; i++)
                    GameSystemsForShutdown[i].Shutdown();
            }

            TimeSystem.Shutdown();
        }

        // Update functions
        void Update()
        {
            TimeSystem.Update();

            if(GameSystemsForUpdate != null)
            {
                for(int i = 0; i < gameSystemsForUpdateLenght; i++)
                    GameSystemsForUpdate[i].Update();
            }
        }

        void FixedUpdate()
        {
            TimeSystem.FixedUpdate();

            if(GameSystemsForFixedUpdate != null)
            {
                for (int i = 0; i < gameSystemsForFixedUpdateLenght; i++)
                    GameSystemsForFixedUpdate[i].FixedUpdate();
            }
        }

        void LateUpdate()
        {
            if(GameSystemsForLateUpdate != null)
            {
                for (int i = 0; i < gameSystemsForLateUpdateLenght; i++)
                    GameSystemsForLateUpdate[i].LateUpdate();
            }
        }
    }
}