EcsWorldExt.cs

using System;
using System.Runtime.CompilerServices;
using Leopotam.Ecs;

public static class EcsWorldExt
{
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static bool InFilter(this EcsEntity e, EcsFilter f)
    {
        ref var entityData = ref e.Owner.GetEntityData(e);

        foreach (var typeId in f.IncludedTypeIndices)
            if (!entityData.HasType(typeId))
                return false;

        foreach (var typeId in f.ExcludedTypeIndices)
            if (entityData.HasType(typeId))
                return false;

        return true;
    }

    public static void Invoke(ref this EcsEntity e, Action t)
    {
        
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    public static bool HasTypeIndex(ref this EcsEntity e, int typeId)
    {
        ref var entityData = ref e.Owner.GetEntityData(e);
        return entityData.HasType(typeId);
    }

    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    static bool HasType(ref this EcsWorld.EcsEntityData entityData, int typeIdx)
    {
        var entityDataComponents = entityData.Components;
        for (int i = 0, iMax = entityData.ComponentsCountX2; i < iMax; i += 2)
        {
            if (entityDataComponents[i] == typeIdx)
                return true;
        }

        return false;
    }
}