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56 lines
2.1 KiB
C#
56 lines
2.1 KiB
C#
// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
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// See the LICENCE file in the repository root for full licence text.
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using osu.Game.Beatmaps;
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using osu.Game.Graphics;
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using osu.Game.Rulesets.Mods;
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using osu.Game.Rulesets.Objects;
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using osu.Game.Rulesets.Objects.Drawables;
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using osu.Game.Rulesets.Osu.Objects.Drawables;
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using osu.Game.Screens.Edit;
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using osuTK.Graphics;
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namespace osu.Game.Rulesets.Osu.Mods
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{
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/// <summary>
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/// Mod that colours <see cref="HitObject"/>s based on the musical division they are on
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/// </summary>
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public class OsuModSynesthesia : ModSynesthesia, IApplicableToBeatmap, IApplicableToDrawableHitObject
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{
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private readonly OsuColour colours = new OsuColour();
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private IBeatmap? currentBeatmap { get; set; }
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public void ApplyToBeatmap(IBeatmap beatmap)
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{
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//Store a reference to the current beatmap to look up the beat divisor when notes are drawn
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if (currentBeatmap != beatmap)
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currentBeatmap = beatmap;
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}
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public void ApplyToDrawableHitObject(DrawableHitObject d)
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{
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if (currentBeatmap == null) return;
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Color4? timingBasedColour = null;
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d.HitObjectApplied += _ =>
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{
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// slider tails are a painful edge case, as their start time is offset 36ms back (see `LastTick`).
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// to work around this, look up the slider tail's parenting slider's end time instead to ensure proper snap.
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double snapTime = d is DrawableSliderTail tail
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? tail.Slider.GetEndTime()
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: d.HitObject.StartTime;
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timingBasedColour = BindableBeatDivisor.GetColourFor(currentBeatmap.ControlPointInfo.GetClosestBeatDivisor(snapTime), colours);
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};
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// Need to set this every update to ensure it doesn't get overwritten by DrawableHitObject.OnApply() -> UpdateComboColour().
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d.OnUpdate += _ =>
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{
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if (timingBasedColour != null)
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d.AccentColour.Value = timingBasedColour.Value;
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};
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}
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}
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}
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