Delta-v/Content.Shared/Audio/Jukebox/SharedJukeboxSystem.cs

using Robust.Shared.Audio.Systems;

namespace Content.Shared.Audio.Jukebox;

public abstract class SharedJukeboxSystem : EntitySystem
{
    [Dependency] protected readonly SharedAudioSystem Audio = default!;

    /// <summary>
    /// Returns whether or not the given jukebox is currently playing a song.
    /// </summary>
    public bool IsPlaying(Entity<JukeboxComponent?> entity)
    {
        if (!Resolve(entity, ref entity.Comp))
            return false;

        return entity.Comp.AudioStream is { } audio && Audio.IsPlaying(audio);
    }
}