mirror of
https://github.com/DCFApixels/DragonECS.git
synced 2025-09-19 10:34:37 +08:00
499 lines
18 KiB
C#
499 lines
18 KiB
C#
using System;
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using System.Diagnostics;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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using static DCFApixels.DragonECS.EcsGroup.ThrowHalper;
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#endif
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namespace DCFApixels.DragonECS
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{
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[StructLayout(LayoutKind.Sequential, Pack = 0, Size = 8)]
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[DebuggerTypeProxy(typeof(DebuggerProxy))]
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public readonly ref struct EcsReadonlyGroup
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{
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private readonly EcsGroup _source;
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#region Constructors
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public EcsReadonlyGroup(EcsGroup source) => _source = source;
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#endregion
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#region Properties
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public bool IsNull => _source == null;
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public EcsWorld World
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _source.World;
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}
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public int Count
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _source.Count;
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}
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public int CapacityDense
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _source.CapacityDense;
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}
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public int CapacitySparce
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _source.CapacitySparce;
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}
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public bool IsReleazed
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _source.IsReleased;
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}
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public int this[int index]
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _source[index];
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}
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#endregion
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#region Methods
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool Has(int entityID) => _source.Has(entityID);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public EcsGroup.Enumerator GetEnumerator() => _source.GetEnumerator();
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public EcsGroup Clone() => _source.Clone();
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int First() => _source.First();
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int Last() => _source.Last();
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#endregion
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#region Object
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public override string ToString() => _source != null ? _source.ToString() : "NULL";
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public override int GetHashCode() => _source.GetHashCode();
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public override bool Equals(object obj) => obj is EcsGroup group && group == this;
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public bool Equals(EcsReadonlyGroup other) => _source == other._source;
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#endregion
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#region Internal
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal EcsGroup GetGroupInternal() => _source;
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#endregion
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#region operators
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public static bool operator ==(EcsReadonlyGroup a, EcsReadonlyGroup b) => a.Equals(b);
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public static bool operator ==(EcsReadonlyGroup a, EcsGroup b) => a.Equals(b);
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public static bool operator !=(EcsReadonlyGroup a, EcsReadonlyGroup b) => !a.Equals(b);
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public static bool operator !=(EcsReadonlyGroup a, EcsGroup b) => !a.Equals(b);
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#endregion
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#region DebuggerProxy
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internal class DebuggerProxy : EcsGroup.DebuggerProxy
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{
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public DebuggerProxy(EcsReadonlyGroup group) : base(group._source) { }
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}
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#endregion
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}
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[DebuggerTypeProxy(typeof(DebuggerProxy))]
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public unsafe class EcsGroup : IDisposable, IEquatable<EcsGroup>
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{
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private EcsWorld _source;
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private int[] _dense;
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private int[] _sparse;
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private int _count;
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internal bool _isReleased = true;
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#region Properties
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public EcsWorld World => _source;
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public int Count
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _count;
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}
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public int CapacityDense
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _dense.Length;
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}
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public int CapacitySparce
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _sparse.Length;
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}
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public EcsReadonlyGroup Readonly
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => new EcsReadonlyGroup(this);
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}
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public bool IsReleased
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _isReleased;
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}
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public int this[int index]
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (index < 0 || index >= Count) ThrowArgumentOutOfRange();
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#endif
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return _dense[index];
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}
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}
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#endregion
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#region Constrcutors/Finalizer
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public static EcsGroup New(EcsWorld world)
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{
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return world.GetGroupFromPool();
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal EcsGroup(EcsWorld world, int denseCapacity = 64)
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{
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_source = world;
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_source.RegisterGroup(this);
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_dense = new int[denseCapacity];
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_sparse = new int[world.Capacity];
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_count = 0;
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}
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#endregion
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#region Has
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//TODO переименовать в Has
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool Has(int entityID)
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{
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return _sparse[entityID] > 0;
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}
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#endregion
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#region IndexOf
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int IndexOf(int entityID)
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{
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return _sparse[entityID];
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}
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#endregion
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#region Add/Remove
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public void UncheckedAdd(int entityID) => AddInternal(entityID);
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public void Add(int entityID)
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{
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if (Has(entityID)) return;
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AddInternal(entityID);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal void AddInternal(int entityID)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (Has(entityID)) ThrowAlreadyContains(entityID);
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#endif
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if (++_count >= _dense.Length)
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Array.Resize(ref _dense, _dense.Length << 1);
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_dense[_count] = entityID;
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_sparse[entityID] = _count;
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}
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public void UncheckedRemove(int entityID) => RemoveInternal(entityID);
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public void Remove(int entityID)
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{
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if (!Has(entityID)) return;
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RemoveInternal(entityID);
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal void RemoveInternal(int entityID)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (!Has(entityID)) ThrowDoesNotContain(entityID);
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#endif
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_dense[_sparse[entityID]] = _dense[_count];
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_sparse[_dense[_count--]] = _sparse[entityID];
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_sparse[entityID] = 0;
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}
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public void RemoveUnusedEntityIDs()
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{
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foreach (var e in this)
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{
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if (!_source.IsUsed(e))
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RemoveInternal(e);
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}
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}
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#endregion
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#region Clear
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public void Clear()
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{
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_count = 0;
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//массив _dense нет смысла очищать
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for (int i = 0; i < _sparse.Length; i++)
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_sparse[i] = 0;
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}
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#endregion
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#region CopyFrom/Clone
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void CopyFrom(EcsReadonlyGroup group) => CopyFrom(group.GetGroupInternal());
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public void CopyFrom(EcsGroup group)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (group.World != _source) throw new ArgumentException("groupFilter.WorldIndex != WorldIndex");
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#endif
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if(_count > 0)
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Clear();
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foreach (var item in group)
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AddInternal(item);
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}
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public EcsGroup Clone()
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{
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EcsGroup result = _source.GetGroupFromPool();
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result.CopyFrom(this);
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return result;
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}
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#endregion
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#region Set operations
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/// <summary>as Union sets</summary>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void UnionWith(EcsReadonlyGroup group) => UnionWith(group.GetGroupInternal());
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/// <summary>as Union sets</summary>
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public void UnionWith(EcsGroup group)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (_source != group.World) throw new ArgumentException("WorldIndex != groupFilter.WorldIndex");
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#endif
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foreach (var item in group)
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if (!Has(item))
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AddInternal(item);
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}
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/// <summary>as Except sets</summary>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void ExceptWith(EcsReadonlyGroup group) => ExceptWith(group.GetGroupInternal());
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/// <summary>as Except sets</summary>
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public void ExceptWith(EcsGroup group)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (_source != group.World) throw new ArgumentException("WorldIndex != groupFilter.WorldIndex");
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#endif
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foreach (var item in this)
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if (group.Has(item))
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RemoveInternal(item);
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}
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/// <summary>as Intersect sets</summary>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void AndWith(EcsReadonlyGroup group) => AndWith(group.GetGroupInternal());
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/// <summary>as Intersect sets</summary>
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public void AndWith(EcsGroup group)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (World != group.World) throw new ArgumentException("WorldIndex != groupFilter.WorldIndex");
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#endif
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foreach (var item in this)
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if (!group.Has(item))
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RemoveInternal(item);
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}
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/// <summary>as Symmetric Except sets</summary>
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public void XorWith(EcsReadonlyGroup group) => XorWith(group.GetGroupInternal());
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/// <summary>as Symmetric Except sets</summary>
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public void XorWith(EcsGroup group)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (_source != group.World) throw new ArgumentException("WorldIndex != groupFilter.WorldIndex");
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#endif
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foreach (var item in group)
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if (Has(item))
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RemoveInternal(item);
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else
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AddInternal(item);
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}
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#endregion
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#region Static Set operations
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/// <summary>as Except sets</summary>
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/// <returns>new group from pool</returns>
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public static EcsGroup Except(EcsGroup a, EcsGroup b)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (a._source != b._source) throw new ArgumentException("a.WorldIndex != b.WorldIndex");
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#endif
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EcsGroup result = a._source.GetGroupFromPool();
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foreach (var item in a)
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if (!b.Has(item))
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result.AddInternal(item);
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a._source.ReleaseGroup(a);
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return result;
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}
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/// <summary>as Intersect sets</summary>
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/// <returns>new group from pool</returns>
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public static EcsGroup And(EcsGroup a, EcsGroup b)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (a._source != b._source) throw new ArgumentException("a.WorldIndex != b.WorldIndex");
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#endif
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EcsGroup result = a._source.GetGroupFromPool();
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foreach (var item in a)
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if (b.Has(item))
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result.AddInternal(item);
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a._source.ReleaseGroup(a);
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return result;
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}
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/// <summary>as Intersect sets</summary>
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/// <returns>new group from pool</returns>
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public static EcsGroup Union(EcsGroup a, EcsGroup b)
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{
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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if (a._source != b._source) throw new ArgumentException("a.WorldIndex != b.WorldIndex");
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#endif
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EcsGroup result = a._source.GetGroupFromPool();
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foreach (var item in a)
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result.AddInternal(item);
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foreach (var item in a)
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result.Add(item);
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return result;
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}
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#endregion
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#region GetEnumerator
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Enumerator GetEnumerator()
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{
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return new Enumerator(this);
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}
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#endregion
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#region Enumerator
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public ref struct Enumerator// : IDisposable
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{
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// private readonly EcsGroup source;
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private readonly int[] _dense;
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private readonly int _count;
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private int _index;
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public Enumerator(EcsGroup group)
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{
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// source = group;
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_dense = group._dense;
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_count = group._count;
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_index = 0;
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}
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public int Current
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{
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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get => _dense[_index];
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}
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public bool MoveNext() => ++_index <= _count && _count<_dense.Length; // <= потму что отсчет начинается с индекса 1 //_count < _dense.Length дает среде понять что проверки на выход за границы не нужны
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//[MethodImpl(MethodImplOptions.AggressiveInlining)]
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//public void Dispose() => source.Unlock();
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}
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#endregion
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#region Object
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public override string ToString() => string.Join(", ", _dense.AsSpan(1, _count).ToArray());
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public override bool Equals(object obj) => obj is EcsGroup group && Equals(group);
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public bool Equals(EcsReadonlyGroup other) => Equals(other.GetGroupInternal());
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public bool Equals(EcsGroup other)
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{
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if (ReferenceEquals(other, null))
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return false;
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if (other.Count != Count)
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return false;
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foreach (var item in other)
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if (!Has(item))
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return false;
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return true;
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}
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public override int GetHashCode()
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{
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int hash = 0;
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foreach (var item in this)
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hash ^= 1 << (item % 32); //реализация от балды, так как не нужен, но фишка в том что хеш не учитывает порядок сущьностей, что явлется правильным поведением.
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return hash;
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}
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#endregion
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#region OtherMethods
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int First() => this[0];
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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public int Last() => this[_count - 1];
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#endregion
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#region operators
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private static bool StaticEquals(EcsGroup a, EcsReadonlyGroup b) => StaticEquals(a, b.GetGroupInternal());
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private static bool StaticEquals(EcsGroup a, EcsGroup b)
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{
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if (ReferenceEquals(a, null))
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return false;
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return a.Equals(b);
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}
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public static bool operator ==(EcsGroup a, EcsGroup b) => StaticEquals(a, b);
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public static bool operator ==(EcsGroup a, EcsReadonlyGroup b) => StaticEquals(a, b);
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public static bool operator !=(EcsGroup a, EcsGroup b) => !StaticEquals(a, b);
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public static bool operator !=(EcsGroup a, EcsReadonlyGroup b) => !StaticEquals(a, b);
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#endregion
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#region OnWorldResize
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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internal void OnWorldResize(int newSize)
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{
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Array.Resize(ref _sparse, newSize);
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}
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#endregion
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#region IDisposable/Release
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public void Dispose() => Release();
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public void Release()
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{
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_source.ReleaseGroup(this);
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}
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#endregion
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#region ThrowHalper
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#if (DEBUG && !DISABLE_DEBUG) || !DISABLE_DRAGONECS_ASSERT_CHEKS
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internal static class ThrowHalper
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{
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[MethodImpl(MethodImplOptions.NoInlining)]
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public static void ThrowAlreadyContains(int entityID) => throw new EcsFrameworkException($"This group already contains entity {entityID}.");
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[MethodImpl(MethodImplOptions.NoInlining)]
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public static void ThrowArgumentOutOfRange() => throw new ArgumentOutOfRangeException($"index is less than 0 or is equal to or greater than Count.");
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[MethodImpl(MethodImplOptions.NoInlining)]
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public static void ThrowDoesNotContain(int entityID) => throw new EcsFrameworkException($"This group does not contain entity {entityID}.");
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}
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#endif
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#endregion
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#region DebuggerProxy
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internal class DebuggerProxy
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{
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private EcsGroup _group;
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public EcsWorld World => _group.World;
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public bool IsReleased => _group.IsReleased;
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public entlong[] Entities
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{
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get
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{
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entlong[] result = new entlong[_group.Count];
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int i = 0;
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foreach (var e in _group)
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result[i++] = _group.World.GetEntityLong(e);
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return result;
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}
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}
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public int Count => _group.Count;
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public int CapacityDense => _group.CapacityDense;
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public int CapacitySparce => _group.CapacitySparce;
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public DebuggerProxy(EcsGroup group) => _group = group;
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}
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#endregion
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}
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} |