55 lines
1.4 KiB
C#
55 lines
1.4 KiB
C#
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#if CSHARP_7_OR_LATER || (UNITY_2018_3_OR_NEWER && (NET_STANDARD_2_0 || NET_4_6))
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#pragma warning disable CS1591 // Missing XML comment for publicly visible type or member
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using UnityEngine;
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namespace UniRx.Async.Triggers
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{
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[DisallowMultipleComponent]
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public class AsyncAwakeTrigger : MonoBehaviour
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{
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bool called = false;
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UniTaskCompletionSource promise;
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void Awake()
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{
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called = true;
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promise?.TrySetResult();
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}
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public UniTask AwakeAsync()
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{
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if (called) return UniTask.CompletedTask;
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PlayerLoopHelper.AddAction(PlayerLoopTiming.Update, new AwakeMonitor(this));
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return new UniTask(promise ?? (promise = new UniTaskCompletionSource()));
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}
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private void OnDestroy()
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{
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promise?.TrySetCanceled();
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}
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class AwakeMonitor : IPlayerLoopItem
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{
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readonly AsyncAwakeTrigger trigger;
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public AwakeMonitor(AsyncAwakeTrigger trigger)
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{
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this.trigger = trigger;
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}
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public bool MoveNext()
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{
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if (trigger.called) return false;
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if (trigger == null)
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{
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trigger.OnDestroy();
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return false;
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}
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return true;
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}
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}
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}
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}
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#endif
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