mirror of https://github.com/ppy/osu
71 lines
2.9 KiB
C#
71 lines
2.9 KiB
C#
// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Containers;
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using OpenTK;
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using osu.Game.Beatmaps.ControlPoints;
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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.Mania.Timing.Drawables;
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namespace osu.Game.Rulesets.Mania.Timing
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{
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public class TimingChangeContainer : Container<DrawableTimingChange>
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{
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/// <summary>
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/// The amount of time which this container spans.
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/// </summary>
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public double TimeSpan { get; set; }
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/// <summary>
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/// Adds a hit object to the most applicable timing change in this container.
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/// </summary>
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/// <param name="hitObject">The hit object to add.</param>
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public void Add(DrawableHitObject hitObject)
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{
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var target = timingChangeFor(hitObject);
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if (target == null)
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throw new ArgumentException("No timing change could be found that can contain the hit object.", nameof(hitObject));
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target.Add(hitObject);
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}
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protected override IComparer<Drawable> DepthComparer => new TimingChangeReverseStartTimeComparer();
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/// <summary>
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/// Finds the most applicable timing change that can contain a hit object.
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/// </summary>
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/// <param name="hitObject">The hit object to contain.</param>
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/// <returns>The last timing change which can contain <paramref name="hitObject"/>. Null if no timing change can contain the hit object.</returns>
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private DrawableTimingChange timingChangeFor(DrawableHitObject hitObject) => Children.FirstOrDefault(c => c.CanContain(hitObject)) ?? Children.LastOrDefault();
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}
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/// <summary>
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/// Compares two timing changes by their start time, falling back to creation order if their start time is equal.
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/// This will compare the two timing changes in reverse order.
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/// </summary>
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public class TimingChangeReverseStartTimeComparer : Drawable.ReverseCreationOrderDepthComparer
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{
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public override int Compare(Drawable x, Drawable y)
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{
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var timingChangeX = x as DrawableTimingChange;
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var timingChangeY = y as DrawableTimingChange;
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// If either of the two drawables are not hit objects, fall back to the base comparer
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if (timingChangeX?.TimingChange == null || timingChangeY?.TimingChange == null)
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return base.Compare(x, y);
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// Compare by start time
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int i = timingChangeY.TimingChange.Time.CompareTo(timingChangeX.TimingChange.Time);
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if (i != 0)
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return i;
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return base.Compare(x, y);
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}
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}
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} |