using System.Collections.Generic;
using System.Linq;

namespace MfGames.Gallium;

public static class WhereEntityHasExtensions
{
    public static IEnumerable<Entity> WhereEntityHas<T1>(
        this IEnumerable<Entity> entities)
    {
        return entities.Where(x => x.Has<T1>());
    }

    public static IEnumerable<Entity> WhereEntityHasAll
        <T1, T2>(this IEnumerable<Entity> entities)
    {
        return entities.Where(x => x.HasAll<T1, T2>());
    }

    public static IEnumerable<Entity> WhereEntityHasAll
        <T1, T2, T3>(this IEnumerable<Entity> entities)
    {
        return entities.Where(x => x.HasAll<T1, T2, T3>());
    }

    public static IEnumerable<Entity> WhereEntityHasAll
        <T1, T2, T3, T4>(this IEnumerable<Entity> entities)
    {
        return entities.Where(x => x.HasAll<T1, T2, T3, T4>());
    }
}