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93 lines
3.2 KiB
C#
93 lines
3.2 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 System;
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using osu.Game.Screens.Play;
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namespace osu.Game.Beatmaps.Timing
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{
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public class BreakPeriod : IEquatable<BreakPeriod>, IComparable<BreakPeriod>
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{
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/// <summary>
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/// The minimum gap between the start of the break and the previous object.
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/// </summary>
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public const double GAP_BEFORE_BREAK = 200;
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/// <summary>
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/// The minimum gap between the end of the break and the next object.
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/// Based on osu! preempt time at AR=10.
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/// See also: https://github.com/ppy/osu/issues/14330#issuecomment-1002158551
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/// </summary>
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public const double GAP_AFTER_BREAK = 450;
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/// <summary>
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/// The minimum duration required for a break to have any effect.
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/// </summary>
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public const double MIN_BREAK_DURATION = 650;
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/// <summary>
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/// The minimum required duration of a gap between two objects such that a break can be placed between them.
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/// </summary>
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public const double MIN_GAP_DURATION = GAP_BEFORE_BREAK + MIN_BREAK_DURATION + GAP_AFTER_BREAK;
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/// <summary>
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/// The break start time.
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/// </summary>
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public double StartTime { get; }
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/// <summary>
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/// The break end time.
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/// </summary>
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public double EndTime { get; }
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/// <summary>
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/// The break duration.
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/// </summary>
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public double Duration => EndTime - StartTime;
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/// <summary>
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/// Whether the break has any effect.
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/// </summary>
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public bool HasEffect => Duration >= MIN_BREAK_DURATION;
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/// <summary>
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/// Constructs a new break period.
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/// </summary>
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/// <param name="startTime">The start time of the break period.</param>
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/// <param name="endTime">The end time of the break period.</param>
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public BreakPeriod(double startTime, double endTime)
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{
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StartTime = startTime;
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EndTime = endTime;
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}
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/// <summary>
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/// Whether this break contains a specified time.
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/// </summary>
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/// <param name="time">The time to check in milliseconds.</param>
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/// <returns>Whether the time falls within this <see cref="BreakPeriod"/>.</returns>
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public bool Contains(double time) => time >= StartTime && time <= EndTime - BreakOverlay.BREAK_FADE_DURATION;
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public bool Intersects(BreakPeriod other) => StartTime <= other.EndTime && EndTime >= other.StartTime;
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public virtual bool Equals(BreakPeriod? other) =>
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other != null
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&& StartTime == other.StartTime
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&& EndTime == other.EndTime;
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public override int GetHashCode() => HashCode.Combine(StartTime, EndTime);
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public int CompareTo(BreakPeriod? other)
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{
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if (ReferenceEquals(this, other)) return 0;
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if (ReferenceEquals(null, other)) return 1;
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int result = StartTime.CompareTo(other.StartTime);
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if (result != 0)
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return result;
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return EndTime.CompareTo(other.EndTime);
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}
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}
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}
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