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Restructure of DifficultyCalculator to cleanup mod + attribute handling

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smoogipoo
2018-06-14 15:32:07 +09:00
parent 1431ee1867
commit b7a06b9594
3 changed files with 59 additions and 13 deletions
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51
osu.Game/Rulesets/Difficulty/DifficultyCalculator.cs
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@ -13,24 +13,44 @@ namespace osu.Game.Rulesets.Difficulty
{
public abstract class DifficultyCalculator
{
protected readonly IBeatmap Beatmap;
protected readonly Mod[] Mods;
private readonly Ruleset ruleset;
private readonly WorkingBeatmap beatmap;
protected double TimeRate { get; private set; } = 1;
protected DifficultyCalculator(IBeatmap beatmap, Mod[] mods = null)
protected DifficultyCalculator(Ruleset ruleset, WorkingBeatmap beatmap)
{
Beatmap = beatmap;
Mods = mods ?? new Mod[0];
ApplyMods(Mods);
this.ruleset = ruleset;
this.beatmap = beatmap;
}
protected virtual void ApplyMods(Mod[] mods)
/// <summary>
/// Calculates the difficulty of the beatmap using a specific mod combination.
/// </summary>
/// <param name="mods">The mods that should be applied to the beatmap.</param>
/// <returns>A structure describing the difficulty of the beatmap.</returns>
public DifficultyAttributes Calculate(params Mod[] mods)
{
beatmap.Mods.Value = mods;
IBeatmap playableBeatmap = beatmap.GetPlayableBeatmap(ruleset.RulesetInfo);
var clock = new StopwatchClock();
mods.OfType<IApplicableToClock>().ForEach(m => m.ApplyToClock(clock));
TimeRate = clock.Rate;
return Calculate(playableBeatmap, mods, clock.Rate);
}
/// <summary>
/// Calculates the difficulty of the beatmap using all mod combinations applicable to the beatmap.
/// </summary>
/// <returns>A collection of structures describing the difficulty of the beatmap for each mod combination.</returns>
public IEnumerable<DifficultyAttributes> CalculateAll()
{
foreach (var combination in CreateDifficultyAdjustmentModCombinations())
{
if (combination is MultiMod multi)
yield return Calculate(multi.Mods);
else
yield return Calculate(combination);
}
}
/// <summary>
@ -71,6 +91,13 @@ namespace osu.Game.Rulesets.Difficulty
/// </summary>
protected virtual Mod[] DifficultyAdjustmentMods => Array.Empty<Mod>();
public abstract double Calculate(Dictionary<string, double> categoryDifficulty = null);
/// <summary>
/// Calculates the difficulty of a <see cref="Beatmap"/> using a specific <see cref="Mod"/> combination.
/// </summary>
/// <param name="beatmap">The <see cref="IBeatmap"/> to compute the difficulty for.</param>
/// <param name="mods">The <see cref="Mod"/>s that should be applied.</param>
/// <param name="timeRate">The rate of time in <paramref name="beatmap"/>.</param>
/// <returns>A structure containing the difficulty attributes.</returns>
protected abstract DifficultyAttributes Calculate(IBeatmap beatmap, Mod[] mods, double timeRate);
}
}