MoonTools.ECS/src/FilterSignature.cs

55 lines
1.1 KiB
C#

using System;
using System.Collections.Generic;
namespace MoonTools.ECS
{
public struct FilterSignature : IEquatable<FilterSignature>
{
public readonly HashSet<int> Included;
public readonly HashSet<int> Excluded;
public FilterSignature(HashSet<int> included, HashSet<int> excluded)
{
Included = included;
Excluded = excluded;
}
public override bool Equals(object? obj)
{
return obj is FilterSignature signature && Equals(signature);
}
public bool Equals(FilterSignature other)
{
return Included.SetEquals(other.Included) && Excluded.SetEquals(other.Excluded);
}
public override int GetHashCode()
{
var hashcode = 1;
foreach (var type in Included)
{
hashcode = HashCode.Combine(hashcode, type);
}
foreach (var type in Excluded)
{
hashcode = HashCode.Combine(hashcode, type);
}
return hashcode;
}
public static bool operator ==(FilterSignature left, FilterSignature right)
{
return left.Equals(right);
}
public static bool operator !=(FilterSignature left, FilterSignature right)
{
return !(left == right);
}
}
}