130 子 【战斗】战斗系统 / 【战斗】战斗系统-客户端 飘血 配置优化

yyl

2025-07-02 f85fb61db25e46f25bbab5e9cd524a90d71baa6d

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using Cysharp.Threading.Tasks.Internal;
using System;
using System.Collections.Generic;
using System.Threading;
 
namespace Cysharp.Threading.Tasks.Linq
{
    public static partial class UniTaskAsyncEnumerable
    {
        public static IUniTaskAsyncEnumerable<TSource> Except<TSource>(this IUniTaskAsyncEnumerable<TSource> first, IUniTaskAsyncEnumerable<TSource> second)
        {
            Error.ThrowArgumentNullException(first, nameof(first));
            Error.ThrowArgumentNullException(second, nameof(second));
 
            return new Except<TSource>(first, second, EqualityComparer<TSource>.Default);
        }
 
        public static IUniTaskAsyncEnumerable<TSource> Except<TSource>(this IUniTaskAsyncEnumerable<TSource> first, IUniTaskAsyncEnumerable<TSource> second, IEqualityComparer<TSource> comparer)
        {
            Error.ThrowArgumentNullException(first, nameof(first));
            Error.ThrowArgumentNullException(second, nameof(second));
            Error.ThrowArgumentNullException(comparer, nameof(comparer));
 
            return new Except<TSource>(first, second, comparer);
        }
    }
 
    internal sealed class Except<TSource> : IUniTaskAsyncEnumerable<TSource>
    {
        readonly IUniTaskAsyncEnumerable<TSource> first;
        readonly IUniTaskAsyncEnumerable<TSource> second;
        readonly IEqualityComparer<TSource> comparer;
 
        public Except(IUniTaskAsyncEnumerable<TSource> first, IUniTaskAsyncEnumerable<TSource> second, IEqualityComparer<TSource> comparer)
        {
            this.first = first;
            this.second = second;
            this.comparer = comparer;
        }
 
        public IUniTaskAsyncEnumerator<TSource> GetAsyncEnumerator(CancellationToken cancellationToken = default)
        {
            return new _Except(first, second, comparer, cancellationToken);
        }
 
        class _Except : AsyncEnumeratorBase<TSource, TSource>
        {
            static Action<object> HashSetAsyncCoreDelegate = HashSetAsyncCore;
 
            readonly IEqualityComparer<TSource> comparer;
            readonly IUniTaskAsyncEnumerable<TSource> second;
 
            HashSet<TSource> set;
            UniTask<HashSet<TSource>>.Awaiter awaiter;
 
            public _Except(IUniTaskAsyncEnumerable<TSource> first, IUniTaskAsyncEnumerable<TSource> second, IEqualityComparer<TSource> comparer, CancellationToken cancellationToken)
 
                : base(first, cancellationToken)
            {
                this.second = second;
                this.comparer = comparer;
            }
 
            protected override bool OnFirstIteration()
            {
                if (set != null) return false;
 
                awaiter = second.ToHashSetAsync(cancellationToken).GetAwaiter();
                if (awaiter.IsCompleted)
                {
                    set = awaiter.GetResult();
                    SourceMoveNext();
                }
                else
                {
                    awaiter.SourceOnCompleted(HashSetAsyncCoreDelegate, this);
                }
 
                return true;
            }
 
            static void HashSetAsyncCore(object state)
            {
                var self = (_Except)state;
 
                if (self.TryGetResult(self.awaiter, out var result))
                {
                    self.set = result;
                    self.SourceMoveNext();
                }
            }
 
            protected override bool TryMoveNextCore(bool sourceHasCurrent, out bool result)
            {
                if (sourceHasCurrent)
                {
                    var v = SourceCurrent;
                    if (set.Add(v))
                    {
                        Current = v;
                        result = true;
                        return true;
                    }
                    else
                    {
                        result = default;
                        return false;
                    }
                }
 
                result = false;
                return true;
            }
        }
    }
}