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osu-lazer/osu.Game.Rulesets.Mania/Mods/ManiaModRandom.cs
2022-08-10 16:09:11 -04:00

32 lines
1.1 KiB
C#

// 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]);
}
}
}