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osu-lazer/Templates/Rulesets/ruleset-scrolling-example/osu.Game.Rulesets.Pippidon/Beatmaps/PippidonBeatmapConverter.cs
2021-04-05 11:41:40 +09:00

46 lines
1.7 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.Collections.Generic;
using System.Linq;
using System.Threading;
using osu.Game.Beatmaps;
using osu.Game.Rulesets.Objects;
using osu.Game.Rulesets.Objects.Types;
using osu.Game.Rulesets.Pippidon.Objects;
using osu.Game.Rulesets.Pippidon.UI;
using osuTK;
namespace osu.Game.Rulesets.Pippidon.Beatmaps
{
public class PippidonBeatmapConverter : BeatmapConverter<PippidonHitObject>
{
private readonly float minPosition;
private readonly float maxPosition;
public PippidonBeatmapConverter(IBeatmap beatmap, Ruleset ruleset)
: base(beatmap, ruleset)
{
minPosition = beatmap.HitObjects.Min(getUsablePosition);
maxPosition = beatmap.HitObjects.Max(getUsablePosition);
}
public override bool CanConvert() => Beatmap.HitObjects.All(h => h is IHasXPosition && h is IHasYPosition);
protected override IEnumerable<PippidonHitObject> ConvertHitObject(HitObject original, IBeatmap beatmap, CancellationToken cancellationToken)
{
yield return new PippidonHitObject
{
Samples = original.Samples,
StartTime = original.StartTime,
Lane = getLane(original)
};
}
private int getLane(HitObject hitObject) => (int)MathHelper.Clamp(
(getUsablePosition(hitObject) - minPosition) / (maxPosition - minPosition) * PippidonPlayfield.LANE_COUNT, 0, PippidonPlayfield.LANE_COUNT - 1);
private float getUsablePosition(HitObject h) => (h as IHasYPosition)?.Y ?? ((IHasXPosition)h).X;
}
}