osu/osu.Game/Storyboards/CommandTimelineGroup.cs

141 lines
4.5 KiB
C#

// 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.
using System;
using osuTK;
using osuTK.Graphics;
using osu.Framework.Graphics;
using System.Collections.Generic;
using System.Linq;
using Newtonsoft.Json;
namespace osu.Game.Storyboards
{
public delegate CommandTimeline<T> CommandTimelineSelector<T>(CommandTimelineGroup commandTimelineGroup);
public class CommandTimelineGroup
{
public CommandTimeline<float> X = new CommandTimeline<float>();
public CommandTimeline<float> Y = new CommandTimeline<float>();
public CommandTimeline<float> Scale = new CommandTimeline<float>();
public CommandTimeline<Vector2> VectorScale = new CommandTimeline<Vector2>();
public CommandTimeline<float> Rotation = new CommandTimeline<float>();
public CommandTimeline<Color4> Colour = new CommandTimeline<Color4>();
public CommandTimeline<float> Alpha = new CommandTimeline<float>();
public CommandTimeline<BlendingParameters> BlendingParameters = new CommandTimeline<BlendingParameters>();
public CommandTimeline<bool> FlipH = new CommandTimeline<bool>();
public CommandTimeline<bool> FlipV = new CommandTimeline<bool>();
private readonly ICommandTimeline[] timelines;
public CommandTimelineGroup()
{
timelines = new ICommandTimeline[]
{
X,
Y,
Scale,
VectorScale,
Rotation,
Colour,
Alpha,
BlendingParameters,
FlipH,
FlipV
};
}
/// <summary>
/// Returns the earliest visible time. Will be null unless this group's first <see cref="Alpha"/> command has a start value of zero.
/// </summary>
public double? EarliestDisplayedTime
{
get
{
var first = Alpha.Commands.FirstOrDefault();
return first?.StartValue == 0 ? first.StartTime : (double?)null;
}
}
[JsonIgnore]
public double CommandsStartTime
{
get
{
// if the first alpha command starts at zero it should be given priority over anything else.
// this is due to it creating a state where the target is not present before that time, causing any other events to not be visible.
double? earliestDisplay = EarliestDisplayedTime;
if (earliestDisplay != null)
return earliestDisplay.Value;
double min = double.MaxValue;
for (int i = 0; i < timelines.Length; i++)
min = Math.Min(min, timelines[i].StartTime);
return min;
}
}
[JsonIgnore]
public double CommandsEndTime
{
get
{
double max = double.MinValue;
for (int i = 0; i < timelines.Length; i++)
max = Math.Max(max, timelines[i].EndTime);
return max;
}
}
[JsonIgnore]
public double CommandsDuration => CommandsEndTime - CommandsStartTime;
[JsonIgnore]
public virtual double StartTime => CommandsStartTime;
[JsonIgnore]
public virtual double EndTime => CommandsEndTime;
[JsonIgnore]
public double Duration => EndTime - StartTime;
[JsonIgnore]
public bool HasCommands
{
get
{
for (int i = 0; i < timelines.Length; i++)
{
if (timelines[i].HasCommands)
return true;
}
return false;
}
}
public virtual IEnumerable<CommandTimeline<T>.TypedCommand> GetCommands<T>(CommandTimelineSelector<T> timelineSelector, double offset = 0)
{
if (offset != 0)
{
return timelineSelector(this).Commands.Select(command =>
new CommandTimeline<T>.TypedCommand
{
Easing = command.Easing,
StartTime = offset + command.StartTime,
EndTime = offset + command.EndTime,
StartValue = command.StartValue,
EndValue = command.EndValue,
});
}
return timelineSelector(this).Commands;
}
}
}