125 【战斗】战斗系统

yyl

2025-08-25 214fe94eaf7f09741a7857775dfffe8c3b83c75c

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using System.Threading;
 
namespace Cysharp.Threading.Tasks.Linq
{
    public static partial class UniTaskAsyncEnumerable
    {
        public static IUniTaskAsyncEnumerable<AsyncUnit> EveryUpdate(PlayerLoopTiming updateTiming = PlayerLoopTiming.Update, bool cancelImmediately = false)
        {
            return new EveryUpdate(updateTiming, cancelImmediately);
        }
    }
 
    internal class EveryUpdate : IUniTaskAsyncEnumerable<AsyncUnit>
    {
        readonly PlayerLoopTiming updateTiming;
        readonly bool cancelImmediately;
 
        public EveryUpdate(PlayerLoopTiming updateTiming, bool cancelImmediately)
        {
            this.updateTiming = updateTiming;
            this.cancelImmediately = cancelImmediately;
        }
 
        public IUniTaskAsyncEnumerator<AsyncUnit> GetAsyncEnumerator(CancellationToken cancellationToken = default)
        {
            return new _EveryUpdate(updateTiming, cancellationToken, cancelImmediately);
        }
 
        class _EveryUpdate : MoveNextSource, IUniTaskAsyncEnumerator<AsyncUnit>, IPlayerLoopItem
        {
            readonly PlayerLoopTiming updateTiming;
            readonly CancellationToken cancellationToken;
            readonly CancellationTokenRegistration cancellationTokenRegistration;
 
            bool disposed;
 
            public _EveryUpdate(PlayerLoopTiming updateTiming, CancellationToken cancellationToken, bool cancelImmediately)
            {
                this.updateTiming = updateTiming;
                this.cancellationToken = cancellationToken;
 
                if (cancelImmediately && cancellationToken.CanBeCanceled)
                {
                    cancellationTokenRegistration = cancellationToken.RegisterWithoutCaptureExecutionContext(state =>
                    {
                        var source = (_EveryUpdate)state;
                        source.completionSource.TrySetCanceled(source.cancellationToken);
                    }, this);
                }
 
                TaskTracker.TrackActiveTask(this, 2);
                PlayerLoopHelper.AddAction(updateTiming, this);
            }
 
            public AsyncUnit Current => default;
 
            public UniTask<bool> MoveNextAsync()
            {
                if (disposed) return CompletedTasks.False;
                
                completionSource.Reset();
 
                if (cancellationToken.IsCancellationRequested)
                {
                    completionSource.TrySetCanceled(cancellationToken);
                }
                return new UniTask<bool>(this, completionSource.Version);
            }
 
            public UniTask DisposeAsync()
            {
                if (!disposed)
                {
                    cancellationTokenRegistration.Dispose();
                    disposed = true;
                    TaskTracker.RemoveTracking(this);
                }
                return default;
            }
 
            public bool MoveNext()
            {
                if (cancellationToken.IsCancellationRequested)
                {
                    completionSource.TrySetCanceled(cancellationToken);
                    return false;
                }
                
                if (disposed)
                {
                    completionSource.TrySetResult(false);
                    return false;
                }
 
                completionSource.TrySetResult(true);
                return true;
            }
        }
    }
}