osu-lazer/osu.Game/Rulesets/Edit/Checks/Components/ResourcesCheckUtils.cs

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.

using osu.Game.Beatmaps;
using osu.Game.Storyboards;

namespace osu.Game.Rulesets.Edit.Checks.Components
{
    public static class ResourcesCheckUtils
    {
        /// <summary>
        /// Checks if any storyboard element is present in the working beatmap.
        /// </summary>
        /// <param name="workingBeatmap">The working beatmap to check.</param>
        /// <returns>True if any storyboard element is present, false otherwise.</returns>
        public static bool HasAnyStoryboardElementPresent(IWorkingBeatmap workingBeatmap)
        {
            foreach (var layer in workingBeatmap.Storyboard.Layers)
            {
                foreach (var _ in layer.Elements)
                {
                    return true;
                }
            }

            return false;
        }

        /// <summary>
        /// Retrieves the first storyboard video entry for the provided working beatmap, if any.
        /// </summary>
        /// <param name="workingBeatmap">The working beatmap to inspect.</param>
        /// <returns>
        /// The first <see cref="StoryboardVideo"/> found, or null if none exists.
        /// </returns>
        public static StoryboardVideo? GetDifficultyVideo(IWorkingBeatmap workingBeatmap)
        {
            foreach (var layer in workingBeatmap.Storyboard.Layers)
            {
                foreach (var element in layer.Elements)
                {
                    if (element is StoryboardVideo video)
                        return video;
                }
            }

            return null;
        }
    }
}