osu/osu.Game/Storyboards/CommandTimeline.cs

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// 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.
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#nullable disable
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using osu.Framework.Graphics;
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using System;
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using System.Collections.Generic;
using System.Linq;
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namespace osu.Game.Storyboards
{
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public class CommandTimeline<T> : ICommandTimeline
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{
private readonly List<TypedCommand> commands = new List<TypedCommand>();
public IEnumerable<TypedCommand> Commands => commands.OrderBy(c => c.StartTime);
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public bool HasCommands => commands.Count > 0;
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public double StartTime { get; private set; } = double.MaxValue;
public double EndTime { get; private set; } = double.MinValue;
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public T StartValue { get; private set; }
public T EndValue { get; private set; }
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public void Add(Easing easing, double startTime, double endTime, T startValue, T endValue)
{
if (endTime < startTime)
{
endTime = startTime;
}
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commands.Add(new TypedCommand { Easing = easing, StartTime = startTime, EndTime = endTime, StartValue = startValue, EndValue = endValue });
if (startTime < StartTime)
{
StartValue = startValue;
StartTime = startTime;
}
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if (endTime > EndTime)
{
EndValue = endValue;
EndTime = endTime;
}
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}
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public override string ToString()
=> $"{commands.Count} command(s)";
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public class TypedCommand : ICommand
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{
public Easing Easing { get; set; }
public double StartTime { get; set; }
public double EndTime { get; set; }
public double Duration => EndTime - StartTime;
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public T StartValue;
public T EndValue;
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public int CompareTo(ICommand other)
{
int result = StartTime.CompareTo(other.StartTime);
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if (result != 0) return result;
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return EndTime.CompareTo(other.EndTime);
}
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public override string ToString()
=> $"{StartTime} -> {EndTime}, {StartValue} -> {EndValue} {Easing}";
}
}
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public interface ICommandTimeline
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{
double StartTime { get; }
double EndTime { get; }
bool HasCommands { get; }
}
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public interface ICommand : IComparable<ICommand>
{
Easing Easing { get; set; }
double StartTime { get; set; }
double EndTime { get; set; }
double Duration { get; }
}
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}