92 lines
2.4 KiB
C#
92 lines
2.4 KiB
C#
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//#define ENABLE_LOGGING
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namespace SRF.Service
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{
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using System;
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using System.Collections;
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using System.Diagnostics;
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using UnityEngine;
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using Debug = UnityEngine.Debug;
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using Object = UnityEngine.Object;
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/// <summary>
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/// A service which has async-loading dependencies
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/// </summary>
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/// <typeparam name="T"></typeparam>
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public abstract class SRDependencyServiceBase<T> : SRServiceBase<T>, IAsyncService where T : class
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{
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private bool _isLoaded;
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protected abstract Type[] Dependencies { get; }
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public bool IsLoaded
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{
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get { return _isLoaded; }
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}
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[Conditional("ENABLE_LOGGING")]
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private void Log(string msg, Object target)
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{
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//#if ENABLE_LOGGING
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Debug.Log(msg, target);
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//#endif
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}
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protected override void Start()
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{
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base.Start();
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StartCoroutine(LoadDependencies());
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}
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/// <summary>
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/// Invoked once all dependencies are loaded
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/// </summary>
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protected virtual void OnLoaded() {}
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private IEnumerator LoadDependencies()
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{
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SRServiceManager.LoadingCount++;
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Log("[Service] Loading service ({0})".Fmt(GetType().Name), this);
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foreach (var d in Dependencies)
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{
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var hasService = SRServiceManager.HasService(d);
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Log("[Service] Resolving Service ({0}) HasService: {1}".Fmt(d.Name, hasService), this);
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if (hasService)
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{
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continue;
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}
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var service = SRServiceManager.GetService(d);
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if (service == null)
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{
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Debug.LogError("[Service] Could not resolve dependency ({0})".Fmt(d.Name));
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enabled = false;
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yield break;
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}
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var a = service as IAsyncService;
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if (a != null)
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{
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while (!a.IsLoaded)
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{
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yield return new WaitForEndOfFrame();
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}
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}
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}
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Log("[Service] Loading service ({0}) complete.".Fmt(GetType().Name), this);
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_isLoaded = true;
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SRServiceManager.LoadingCount--;
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OnLoaded();
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}
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}
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}
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