osu/osu.Game/Beatmaps/StarDifficulty.cs
2020-11-06 13:51:25 +09:00

54 lines
2.0 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 JetBrains.Annotations;
using osu.Game.Rulesets.Difficulty;
namespace osu.Game.Beatmaps
{
public readonly struct StarDifficulty
{
/// <summary>
/// The star difficulty rating for the given beatmap.
/// </summary>
public readonly double Stars;
/// <summary>
/// The maximum combo achievable on the given beatmap.
/// </summary>
public readonly int MaxCombo;
/// <summary>
/// The difficulty attributes computed for the given beatmap.
/// Might not be available if the star difficulty is associated with a beatmap that's not locally available.
/// </summary>
[CanBeNull]
public readonly DifficultyAttributes Attributes;
/// <summary>
/// Creates a <see cref="StarDifficulty"/> structure based on <see cref="DifficultyAttributes"/> computed
/// by a <see cref="DifficultyCalculator"/>.
/// </summary>
public StarDifficulty([NotNull] DifficultyAttributes attributes)
{
Stars = attributes.StarRating;
MaxCombo = attributes.MaxCombo;
Attributes = attributes;
// Todo: Add more members (BeatmapInfo.DifficultyRating? Attributes? Etc...)
}
/// <summary>
/// Creates a <see cref="StarDifficulty"/> structure with a pre-populated star difficulty and max combo
/// in scenarios where computing <see cref="DifficultyAttributes"/> is not feasible (i.e. when working with online sources).
/// </summary>
public StarDifficulty(double starDifficulty, int maxCombo)
{
Stars = starDifficulty;
MaxCombo = maxCombo;
Attributes = null;
}
public DifficultyRating DifficultyRating => BeatmapDifficultyCache.GetDifficultyRating(Stars);
}
}