// 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 System; using System.Linq; using osu.Framework.Extensions.IEnumerableExtensions; using osu.Framework.Localisation; using osu.Framework.Utils; using osu.Game.Beatmaps; using osu.Game.Rulesets.Mania.Beatmaps; using osu.Game.Rulesets.Mania.Objects; using osu.Game.Rulesets.Mods; namespace osu.Game.Rulesets.Mania.Mods { public class ManiaModRandom : ModRandom, IApplicableToBeatmap { public override LocalisableString Description => @"Shuffle around the keys!"; public void ApplyToBeatmap(IBeatmap beatmap) { Seed.Value ??= RNG.Next(); var rng = new Random((int)Seed.Value); int availableColumns = ((ManiaBeatmap)beatmap).TotalColumns; var shuffledColumns = Enumerable.Range(0, availableColumns).OrderBy(_ => rng.Next()).ToList(); beatmap.HitObjects.OfType<ManiaHitObject>().ForEach(h => h.Column = shuffledColumns[h.Column]); } } }