88 lines
No EOL
2.7 KiB
C#
88 lines
No EOL
2.7 KiB
C#
using UnityEngine;
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using UnityEngine.UIElements;
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/// <summary>
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/// singleton for a single source of truth game state and flow management
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/// </summary>
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public class GameManager : MonoBehaviour
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{
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/// <summary>
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/// singleton pattern: define instance field for accessing the singleton elsewhere
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/// </summary>
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public static GameManager Instance;
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/// <summary>
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/// ui manager object for handling ui state and flow
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/// </summary>
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public UIManager ui;
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/// <summary>
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/// the local player data object for storing player data
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/// </summary>
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private LocalPlayerData _localPlayerData;
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/// <summary>
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/// backend object for handling communication with the firebase backend
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/// </summary>
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public Backend Backend;
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/// <summary>
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/// enforces singleton behaviour; sets doesn't destroy on load and checks for multiple instances
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/// </summary>
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private void Awake()
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{
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// check if instance hasn't been set yet
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if (Instance == null)
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{
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Debug.Log("awake as singleton instance, setting self as the forever-alive instance");
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Instance = this;
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DontDestroyOnLoad(gameObject);
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}
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// check if instance is already set and it's not this instance
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else if (Instance != null && Instance != this)
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{
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Debug.Log("awake as non-singleton instance, destroying self");
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Destroy(gameObject);
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}
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}
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private void Start()
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{
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// load the local player data and refresh the ui
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_localPlayerData = new LocalPlayerData();
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_localPlayerData.LoadFromTheWorld();
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PopulateFields();
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// register a callback to refresh the ui when the player signs in
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Backend.RegisterOnSignInCallback(_ => { _localPlayerData.LoadFromTheWorld(); });
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}
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/// <summary>
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/// called when the game object is enabled, initialises variables
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/// </summary>
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private void OnEnable()
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{
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Backend = new Backend();
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Backend.Initialise();
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ui = UIManager.Instance;
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}
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/// <summary>
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/// called when the application is quitting, saves the local player data
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/// </summary>
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private void OnApplicationQuit()
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{
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Debug.Log("running deferred cleanup/save functions");
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Backend.Cleanup();
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_localPlayerData.SaveToTheWorld();
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}
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/// <summary>
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/// populate the fields with the given username and email, used by GameManager after local player data is loaded
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/// </summary>
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public void PopulateFields()
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{
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ui.UI.Q<TextField>("UsernameField").value = _localPlayerData.LastKnownUsername;
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ui.UI.Q<TextField>("EmailField").value = _localPlayerData.LastKnownEmail;
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}
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} |