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osu-lazer/osu.Game/Beatmaps/BeatmapProcessor.cs

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// 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.
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using System.Linq;
using osu.Game.Rulesets.Objects.Types;
namespace osu.Game.Beatmaps
{
/// <summary>
/// Provides functionality to alter a <see cref="IBeatmap"/> after it has been converted.
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/// </summary>
public class BeatmapProcessor : IBeatmapProcessor
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{
public IBeatmap Beatmap { get; }
public BeatmapProcessor(IBeatmap beatmap)
{
Beatmap = beatmap;
}
public virtual void PreProcess()
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{
IHasComboInformation lastObj = null;
foreach (var obj in Beatmap.HitObjects.OfType<IHasComboInformation>())
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{
if (obj.NewCombo)
{
obj.IndexInCurrentCombo = 0;
obj.ComboIndex = (lastObj?.ComboIndex ?? 0) + obj.ComboOffset + 1;
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if (lastObj != null)
lastObj.LastInCombo = true;
}
else if (lastObj != null)
{
obj.IndexInCurrentCombo = lastObj.IndexInCurrentCombo + 1;
obj.ComboIndex = lastObj.ComboIndex;
}
lastObj = obj;
}
}
public virtual void PostProcess()
{
}
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}
}