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osu-lazer/osu.Game/Overlays/Volume/VolumeMeter.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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using System;
using System.Globalization;
using osu.Framework;
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using osu.Framework.Allocation;
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using osu.Framework.Audio;
using osu.Framework.Audio.Sample;
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using osu.Framework.Bindables;
using osu.Framework.Extensions;
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using osu.Framework.Extensions.Color4Extensions;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Effects;
using osu.Framework.Graphics.Shapes;
using osu.Framework.Graphics.UserInterface;
using osu.Framework.Input.Bindings;
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using osu.Framework.Input.Events;
using osu.Framework.Threading;
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using osu.Framework.Utils;
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using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
using osu.Game.Graphics.UserInterface;
using osu.Game.Input.Bindings;
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using osuTK;
using osuTK.Graphics;
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namespace osu.Game.Overlays.Volume
{
public class VolumeMeter : Container, IKeyBindingHandler<GlobalAction>, IStateful<SelectionState>
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{
private CircularProgress volumeCircle;
private CircularProgress volumeCircleGlow;
public BindableDouble Bindable { get; } = new BindableDouble { MinValue = 0, MaxValue = 1, Precision = 0.01 };
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private readonly float circleSize;
private readonly Color4 meterColour;
private readonly string name;
private OsuSpriteText text;
private BufferedContainer maxGlow;
private Container selectedGlowContainer;
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private Sample hoverSample;
private Sample notchSample;
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private double sampleLastPlaybackTime;
public event Action<SelectionState> StateChanged;
private SelectionState state;
public SelectionState State
{
get => state;
set
{
if (state == value)
return;
state = value;
StateChanged?.Invoke(value);
updateSelectedState();
}
}
private const float transition_length = 500;
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public VolumeMeter(string name, float circleSize, Color4 meterColour)
{
this.circleSize = circleSize;
this.meterColour = meterColour;
this.name = name;
AutoSizeAxes = Axes.Both;
}
[BackgroundDependencyLoader]
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private void load(OsuColour colours, AudioManager audio)
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{
hoverSample = audio.Samples.Get($"UI/{HoverSampleSet.Button.GetDescription()}-hover");
notchSample = audio.Samples.Get(@"UI/notch-tick");
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sampleLastPlaybackTime = Time.Current;
Color4 backgroundColour = colours.Gray1;
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CircularProgress bgProgress;
const float progress_start_radius = 0.75f;
const float progress_size = 0.03f;
const float progress_end_radius = progress_start_radius + progress_size;
const float blur_amount = 5;
Children = new Drawable[]
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{
new Container
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{
Size = new Vector2(circleSize),
Children = new Drawable[]
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{
new BufferedContainer
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{
RelativeSizeAxes = Axes.Both,
Children = new Drawable[]
{
new Circle
{
RelativeSizeAxes = Axes.Both,
Colour = backgroundColour,
},
new CircularContainer
{
Masking = true,
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
Size = new Vector2(progress_end_radius),
Children = new Drawable[]
{
bgProgress = new CircularProgress
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
Rotation = 180,
Colour = backgroundColour,
},
new Container
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Name = "Progress under covers for smoothing",
RelativeSizeAxes = Axes.Both,
Rotation = 180,
Child = volumeCircle = new CircularProgress
{
RelativeSizeAxes = Axes.Both,
}
},
}
},
new Circle
{
Name = "Inner Cover",
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
Colour = backgroundColour,
Size = new Vector2(progress_start_radius),
},
new Container
{
Name = "Progress overlay for glow",
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
RelativeSizeAxes = Axes.Both,
Size = new Vector2(progress_start_radius + progress_size / 1.5f),
Rotation = 180,
Padding = new MarginPadding(-Blur.KernelSize(blur_amount)),
Child = (volumeCircleGlow = new CircularProgress
{
RelativeSizeAxes = Axes.Both,
InnerRadius = progress_size * 0.8f,
}).WithEffect(new GlowEffect
{
Colour = meterColour,
BlurSigma = new Vector2(blur_amount),
Strength = 5,
PadExtent = true
}),
},
},
},
selectedGlowContainer = new CircularContainer
{
Masking = true,
RelativeSizeAxes = Axes.Both,
Alpha = 0,
Child = new Box
{
RelativeSizeAxes = Axes.Both,
Alpha = 0,
AlwaysPresent = true,
},
EdgeEffect = new EdgeEffectParameters
{
Type = EdgeEffectType.Glow,
Colour = meterColour.Opacity(0.1f),
Radius = 10,
}
},
maxGlow = (text = new OsuSpriteText
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Font = OsuFont.Numeric.With(size: 0.16f * circleSize)
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}).WithEffect(new GlowEffect
{
Colour = Color4.Transparent,
PadExtent = true,
})
}
},
new Container
{
Size = new Vector2(120, 20),
CornerRadius = 10,
Masking = true,
Margin = new MarginPadding { Left = circleSize + 10 },
Origin = Anchor.CentreLeft,
Anchor = Anchor.CentreLeft,
Children = new Drawable[]
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{
new Box
{
RelativeSizeAxes = Axes.Both,
Colour = backgroundColour,
},
new OsuSpriteText
{
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Font = OsuFont.GetFont(weight: FontWeight.Bold),
Text = name
}
}
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}
};
Bindable.BindValueChanged(volume => { this.TransformTo(nameof(DisplayVolume), volume.NewValue, 400, Easing.OutQuint); }, true);
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bgProgress.Current.Value = 0.75f;
}
private int? displayVolumeInt;
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private double displayVolume;
protected double DisplayVolume
{
get => displayVolume;
set
{
displayVolume = value;
int intValue = (int)Math.Round(displayVolume * 100);
bool intVolumeChanged = intValue != displayVolumeInt;
displayVolumeInt = intValue;
if (displayVolume >= 0.995f)
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{
text.Text = "MAX";
maxGlow.EffectColour = meterColour.Opacity(2f);
}
else
{
maxGlow.EffectColour = Color4.Transparent;
text.Text = intValue.ToString(CultureInfo.CurrentCulture);
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}
volumeCircle.Current.Value = displayVolume * 0.75f;
volumeCircleGlow.Current.Value = displayVolume * 0.75f;
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if (intVolumeChanged && IsLoaded)
Scheduler.AddOnce(playTickSound);
}
}
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private void playTickSound()
{
const int tick_debounce_time = 30;
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if (Time.Current - sampleLastPlaybackTime <= tick_debounce_time)
return;
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var channel = notchSample.GetChannel();
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channel.Frequency.Value = 0.99f + RNG.NextDouble(0.02f) + displayVolume * 0.1f;
// intentionally pitched down, even when hitting max.
if (displayVolumeInt == 0 || displayVolumeInt == 100)
channel.Frequency.Value -= 0.5f;
channel.Play();
sampleLastPlaybackTime = Time.Current;
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}
public double Volume
{
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get => Bindable.Value;
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private set => Bindable.Value = value;
}
private const double adjust_step = 0.01;
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public void Increase(double amount = 1, bool isPrecise = false) => adjust(amount, isPrecise);
public void Decrease(double amount = 1, bool isPrecise = false) => adjust(-amount, isPrecise);
// because volume precision is set to 0.01, this local is required to keep track of more precise adjustments and only apply when possible.
private double scrollAccumulation;
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private double accelerationModifier = 1;
private const double max_acceleration = 5;
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private const double acceleration_multiplier = 1.8;
private ScheduledDelegate accelerationDebounce;
private void resetAcceleration() => accelerationModifier = 1;
private void adjust(double delta, bool isPrecise)
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{
if (delta == 0)
return;
// every adjust increment increases the rate at which adjustments happen up to a cutoff.
// this debounce will reset on inactivity.
accelerationDebounce?.Cancel();
accelerationDebounce = Scheduler.AddDelayed(resetAcceleration, 150);
delta *= accelerationModifier;
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accelerationModifier = Math.Min(max_acceleration, accelerationModifier * acceleration_multiplier);
var precision = Bindable.Precision;
if (isPrecise)
{
scrollAccumulation += delta * adjust_step * 0.1;
while (Precision.AlmostBigger(Math.Abs(scrollAccumulation), precision))
{
Volume += Math.Sign(scrollAccumulation) * precision;
scrollAccumulation = scrollAccumulation < 0 ? Math.Min(0, scrollAccumulation + precision) : Math.Max(0, scrollAccumulation - precision);
}
}
else
{
Volume += Math.Sign(delta) * Math.Max(precision, Math.Abs(delta * adjust_step));
}
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}
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protected override bool OnScroll(ScrollEvent e)
{
adjust(e.ScrollDelta.Y, e.IsPrecise);
return true;
}
protected override bool OnMouseMove(MouseMoveEvent e)
{
State = SelectionState.Selected;
return base.OnMouseMove(e);
}
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protected override void OnHoverLost(HoverLostEvent e)
{
}
public bool OnPressed(GlobalAction action)
{
if (!IsHovered)
return false;
switch (action)
{
case GlobalAction.SelectPrevious:
State = SelectionState.Selected;
adjust(1, false);
return true;
case GlobalAction.SelectNext:
State = SelectionState.Selected;
adjust(-1, false);
return true;
}
return false;
}
public void OnReleased(GlobalAction action)
{
}
private void updateSelectedState()
{
switch (state)
{
case SelectionState.Selected:
this.ScaleTo(1.04f, transition_length, Easing.OutExpo);
selectedGlowContainer.FadeIn(transition_length, Easing.OutExpo);
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hoverSample?.Play();
break;
case SelectionState.NotSelected:
this.ScaleTo(1f, transition_length, Easing.OutExpo);
selectedGlowContainer.FadeOut(transition_length, Easing.OutExpo);
break;
}
}
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}
}