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osu-lazer/osu.Game.Rulesets.Osu/Beatmaps/OsuBeatmapConverter.cs

76 lines
3.3 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 osuTK;
using osu.Game.Beatmaps;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Osu.Objects;
using System.Collections.Generic;
using osu.Game.Rulesets.Objects.Types;
using System.Linq;
using System.Threading;
using osu.Game.Rulesets.Osu.UI;
using osu.Framework.Extensions.IEnumerableExtensions;
namespace osu.Game.Rulesets.Osu.Beatmaps
{
public class OsuBeatmapConverter : BeatmapConverter<OsuHitObject>
{
public OsuBeatmapConverter(IBeatmap beatmap, Ruleset ruleset)
: base(beatmap, ruleset)
{
}
public override bool CanConvert() => Beatmap.HitObjects.All(h => h is IHasPosition);
protected override IEnumerable<OsuHitObject> ConvertHitObject(HitObject original, IBeatmap beatmap, CancellationToken cancellationToken)
{
var positionData = original as IHasPosition;
var comboData = original as IHasCombo;
switch (original)
{
case IHasPathWithRepeats curveData:
return new Slider
{
StartTime = original.StartTime,
Samples = original.Samples,
Path = curveData.Path,
NodeSamples = curveData.NodeSamples,
RepeatCount = curveData.RepeatCount,
Position = positionData?.Position ?? Vector2.Zero,
NewCombo = comboData?.NewCombo ?? false,
ComboOffset = comboData?.ComboOffset ?? 0,
LegacyLastTickOffset = (original as IHasLegacyLastTickOffset)?.LegacyLastTickOffset,
// prior to v8, speed multipliers don't adjust for how many ticks are generated over the same distance.
// this results in more (or less) ticks being generated in <v8 maps for the same time duration.
TickDistanceMultiplier = beatmap.BeatmapInfo.BeatmapVersion < 8 ? 1f / beatmap.ControlPointInfo.DifficultyPointAt(original.StartTime).SpeedMultiplier : 1
}.Yield();
case IHasDuration endTimeData:
return new Spinner
{
StartTime = original.StartTime,
Samples = original.Samples,
EndTime = endTimeData.EndTime,
Position = positionData?.Position ?? OsuPlayfield.BASE_SIZE / 2,
NewCombo = comboData?.NewCombo ?? false,
ComboOffset = comboData?.ComboOffset ?? 0,
}.Yield();
default:
return new HitCircle
{
StartTime = original.StartTime,
Samples = original.Samples,
Position = positionData?.Position ?? Vector2.Zero,
NewCombo = comboData?.NewCombo ?? false,
ComboOffset = comboData?.ComboOffset ?? 0,
}.Yield();
}
}
protected override Beatmap<OsuHitObject> CreateBeatmap() => new OsuBeatmap();
}
}