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Make PeriodTracker actually immutable

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This commit is contained in:
Bartłomiej Dach
2020-05-02 01:33:33 +02:00
parent 6fa9feb15c
commit 8118747732
3 changed files with 29 additions and 68 deletions
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35
osu.Game/Utils/PeriodTracker.cs
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@ -8,41 +8,22 @@ using System.Linq;
namespace osu.Game.Utils
{
/// <summary>
/// Represents a tracking component used for whether a
/// specific time falls into any of the provided periods.
/// Represents a tracking component used for whether a specific time instant falls into any of the provided periods.
/// </summary>
public class PeriodTracker
{
private readonly List<Period> periods = new List<Period>();
private readonly List<Period> periods;
private int nearestIndex;
/// <summary>
/// The list of periods to add to the tracker for using the required check methods.
/// </summary>
public IEnumerable<Period> Periods
public PeriodTracker(IEnumerable<Period> periods)
{
set
{
var sortedValue = value?.ToList();
sortedValue?.Sort();
if (sortedValue != null && periods.SequenceEqual(sortedValue))
return;
periods.Clear();
nearestIndex = 0;
if (value?.Any() != true)
return;
periods.AddRange(sortedValue);
}
this.periods = periods.OrderBy(period => period.Start).ToList();
}
/// <summary>
/// Whether the provided time is in any of the added periods.
/// </summary>
/// <param name="time">The time value to check for.</param>
/// <param name="time">The time value to check.</param>
public bool IsInAny(double time)
{
if (periods.Count == 0)
@ -64,7 +45,7 @@ namespace osu.Game.Utils
}
}
public readonly struct Period : IComparable<Period>
public readonly struct Period
{
/// <summary>
/// The start time of this period.
@ -79,12 +60,10 @@ namespace osu.Game.Utils
public Period(double start, double end)
{
if (start >= end)
throw new ArgumentException($"Invalid period provided, {nameof(start)} must be less than {nameof(end)}", nameof(start));
throw new ArgumentException($"Invalid period provided, {nameof(start)} must be less than {nameof(end)}");
Start = start;
End = end;
}
public int CompareTo(Period other) => Start.CompareTo(other.Start);
}
}