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417 lines
15 KiB
C#
417 lines
15 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 System.Collections.Generic;
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using System.Linq;
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using osu.Framework.Allocation;
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using osu.Framework.Bindables;
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using osu.Framework.Extensions.Color4Extensions;
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using osu.Framework.Graphics;
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using osu.Framework.Graphics.Colour;
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using osu.Framework.Graphics.Containers;
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using osu.Framework.Graphics.Effects;
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using osu.Framework.Graphics.Shapes;
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using osu.Framework.Graphics.UserInterface;
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using osu.Framework.Input.Bindings;
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using osu.Framework.Input.Events;
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using osu.Framework.Threading;
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using osu.Game.Beatmaps;
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using osu.Game.Beatmaps.ControlPoints;
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using osu.Game.Graphics;
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using osu.Game.Graphics.Sprites;
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using osu.Game.Input.Bindings;
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using osu.Game.Overlays;
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using osuTK;
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using osuTK.Graphics;
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using osuTK.Input;
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namespace osu.Game.Screens.Edit.Timing
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{
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internal class TapButton : CircularContainer, IKeyBindingHandler<GlobalAction>
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{
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public const float SIZE = 140;
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public readonly BindableBool IsHandlingTapping = new BindableBool();
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[Resolved]
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private OverlayColourProvider colourProvider { get; set; } = null!;
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[Resolved(canBeNull: true)]
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private Bindable<ControlPointGroup>? selectedGroup { get; set; }
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[Resolved(canBeNull: true)]
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private IBeatSyncProvider? beatSyncSource { get; set; }
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private Circle hoverLayer = null!;
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private CircularContainer innerCircle = null!;
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private Box innerCircleHighlight = null!;
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private int currentLight;
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private Container scaleContainer = null!;
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private Container lights = null!;
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private Container lightsGlow = null!;
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private OsuSpriteText bpmText = null!;
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private Container textContainer = null!;
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private bool grabbedMouseDown;
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private ScheduledDelegate? resetDelegate;
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private const int light_count = 8;
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private const int initial_taps_to_ignore = 4;
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private const int max_taps_to_consider = 128;
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private const double transition_length = 500;
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private const float angular_light_gap = 0.007f;
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private readonly List<double> tapTimings = new List<double>();
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[BackgroundDependencyLoader]
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private void load()
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{
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Size = new Vector2(SIZE);
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const float ring_width = 22;
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const float light_padding = 3;
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InternalChild = scaleContainer = new Container
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{
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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RelativeSizeAxes = Axes.Both,
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Children = new Drawable[]
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{
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new Circle
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{
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RelativeSizeAxes = Axes.Both,
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Colour = colourProvider.Background4
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},
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lights = new Container
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{
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RelativeSizeAxes = Axes.Both,
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},
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new CircularContainer
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{
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RelativeSizeAxes = Axes.Both,
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Name = @"outer masking",
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Masking = true,
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BorderThickness = light_padding,
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BorderColour = colourProvider.Background4,
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Children = new Drawable[]
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{
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new Box
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{
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Colour = Color4.Black,
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RelativeSizeAxes = Axes.Both,
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Alpha = 0,
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AlwaysPresent = true,
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},
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}
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},
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new Circle
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{
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Name = @"inner masking",
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Size = new Vector2(SIZE - ring_width * 2 + light_padding * 2),
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Colour = colourProvider.Background4,
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},
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lightsGlow = new Container
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{
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RelativeSizeAxes = Axes.Both,
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},
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innerCircle = new CircularContainer
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{
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Size = new Vector2(SIZE - ring_width * 2),
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Anchor = Anchor.Centre,
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Origin = Anchor.Centre,
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Masking = true,
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Children = new Drawable[]
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{
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new Box
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{
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Colour = colourProvider.Background2,
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RelativeSizeAxes = Axes.Both,
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},
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innerCircleHighlight = new Box
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{
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Colour = colourProvider.Colour3,
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Blending = BlendingParameters.Additive,
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RelativeSizeAxes = Axes.Both,
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Alpha = 0,
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},
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textContainer = new Container
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{
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RelativeSizeAxes = Axes.Both,
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Colour = colourProvider.Background1,
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Children = new Drawable[]
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{
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new OsuSpriteText
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{
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Font = OsuFont.Torus.With(size: 34, weight: FontWeight.SemiBold),
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Anchor = Anchor.Centre,
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Origin = Anchor.BottomCentre,
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Y = 5,
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Text = "Tap",
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},
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bpmText = new OsuSpriteText
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{
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Font = OsuFont.Torus.With(size: 23, weight: FontWeight.Regular),
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Anchor = Anchor.Centre,
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Origin = Anchor.TopCentre,
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Y = -1,
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},
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}
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},
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hoverLayer = new Circle
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{
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RelativeSizeAxes = Axes.Both,
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Colour = colourProvider.Background1.Opacity(0.3f),
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Blending = BlendingParameters.Additive,
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Alpha = 0,
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},
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}
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},
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}
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};
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for (int i = 0; i < light_count; i++)
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{
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var light = new Light
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{
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Rotation = (i + 1) * (360f / light_count) + 360 * angular_light_gap / 2,
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};
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lights.Add(light);
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lightsGlow.Add(light.Glow.CreateProxy());
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}
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reset();
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}
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public override bool ReceivePositionalInputAt(Vector2 screenSpacePos) =>
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hoverLayer.ReceivePositionalInputAt(screenSpacePos);
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private ColourInfo textColour
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{
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get
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{
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if (grabbedMouseDown)
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return colourProvider.Background4;
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if (IsHovered)
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return colourProvider.Content2;
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return colourProvider.Background1;
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}
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}
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protected override bool OnHover(HoverEvent e)
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{
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hoverLayer.FadeIn(transition_length, Easing.OutQuint);
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textContainer.FadeColour(textColour, transition_length, Easing.OutQuint);
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return true;
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}
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protected override void OnHoverLost(HoverLostEvent e)
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{
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hoverLayer.FadeOut(transition_length, Easing.OutQuint);
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textContainer.FadeColour(textColour, transition_length, Easing.OutQuint);
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base.OnHoverLost(e);
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}
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protected override bool OnMouseDown(MouseDownEvent e)
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{
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const double in_duration = 100;
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grabbedMouseDown = true;
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IsHandlingTapping.Value = true;
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resetDelegate?.Cancel();
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handleTap();
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textContainer.FadeColour(textColour, in_duration, Easing.OutQuint);
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scaleContainer.ScaleTo(0.99f, in_duration, Easing.OutQuint);
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innerCircle.ScaleTo(0.96f, in_duration, Easing.OutQuint);
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innerCircleHighlight
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.FadeIn(50, Easing.OutQuint)
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.FlashColour(Color4.White, 1000, Easing.OutQuint);
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lights[currentLight % light_count].Hide();
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lights[(currentLight + light_count / 2) % light_count].Hide();
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currentLight++;
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lights[currentLight % light_count].Show();
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lights[(currentLight + light_count / 2) % light_count].Show();
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return true;
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}
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protected override void OnMouseUp(MouseUpEvent e)
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{
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const double out_duration = 800;
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grabbedMouseDown = false;
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textContainer.FadeColour(textColour, out_duration, Easing.OutQuint);
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scaleContainer.ScaleTo(1, out_duration, Easing.OutQuint);
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innerCircle.ScaleTo(1, out_duration, Easing.OutQuint);
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innerCircleHighlight.FadeOut(out_duration, Easing.OutQuint);
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resetDelegate = Scheduler.AddDelayed(reset, 1000);
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base.OnMouseUp(e);
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}
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public bool OnPressed(KeyBindingPressEvent<GlobalAction> e)
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{
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if (e.Action == GlobalAction.EditorTapForBPM && !e.Repeat)
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{
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// Direct through mouse handling to achieve animation
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OnMouseDown(new MouseDownEvent(e.CurrentState, MouseButton.Left));
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return true;
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}
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return false;
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}
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public void OnReleased(KeyBindingReleaseEvent<GlobalAction> e)
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{
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if (e.Action == GlobalAction.EditorTapForBPM)
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OnMouseUp(new MouseUpEvent(e.CurrentState, MouseButton.Left));
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}
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private void handleTap()
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{
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tapTimings.Add(Clock.CurrentTime);
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if (tapTimings.Count > initial_taps_to_ignore + max_taps_to_consider)
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tapTimings.RemoveAt(0);
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if (tapTimings.Count < initial_taps_to_ignore * 2)
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{
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bpmText.Text = new string('.', tapTimings.Count);
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return;
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}
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double averageBeatLength = (tapTimings.Last() - tapTimings.Skip(initial_taps_to_ignore).First()) / (tapTimings.Count - initial_taps_to_ignore - 1);
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double clockRate = beatSyncSource?.Clock?.Rate ?? 1;
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double bpm = Math.Round(60000 / averageBeatLength / clockRate);
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bpmText.Text = $"{bpm} BPM";
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var timingPoint = selectedGroup?.Value.ControlPoints.OfType<TimingControlPoint>().FirstOrDefault();
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if (timingPoint != null)
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{
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// Intentionally use the rounded BPM here.
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timingPoint.BeatLength = 60000 / bpm;
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}
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}
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private void reset()
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{
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bpmText.FadeOut(transition_length, Easing.OutQuint);
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using (BeginDelayedSequence(tapTimings.Count > 0 ? transition_length : 0))
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{
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Schedule(() => bpmText.Text = "the beat!");
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bpmText.FadeIn(800, Easing.OutQuint);
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}
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foreach (var light in lights)
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light.Hide();
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tapTimings.Clear();
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currentLight = 0;
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IsHandlingTapping.Value = false;
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}
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private class Light : CompositeDrawable
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{
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public Drawable Glow { get; private set; } = null!;
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private Container fillContent = null!;
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[Resolved]
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private OverlayColourProvider colourProvider { get; set; } = null!;
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[BackgroundDependencyLoader]
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private void load()
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{
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RelativeSizeAxes = Axes.Both;
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Anchor = Anchor.Centre;
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Origin = Anchor.Centre;
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Size = new Vector2(0.98f); // Avoid bleed into masking edge.
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InternalChildren = new Drawable[]
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{
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new CircularProgress
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{
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RelativeSizeAxes = Axes.Both,
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Current = { Value = 1f / light_count - angular_light_gap },
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Colour = colourProvider.Background2,
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},
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fillContent = new Container
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{
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RelativeSizeAxes = Axes.Both,
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Alpha = 0,
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Colour = colourProvider.Colour1,
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Children = new[]
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{
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new CircularProgress
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{
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RelativeSizeAxes = Axes.Both,
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Current = { Value = 1f / light_count - angular_light_gap },
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Blending = BlendingParameters.Additive
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},
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// Please do not try and make sense of this.
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// Getting the visual effect I was going for relies on what I can only imagine is broken implementation
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// of `PadExtent`. If that's ever fixed in the future this will likely need to be adjusted.
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Glow = new CircularProgress
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{
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RelativeSizeAxes = Axes.Both,
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Current = { Value = 1f / light_count - 0.01f },
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Blending = BlendingParameters.Additive
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}.WithEffect(new GlowEffect
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{
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Colour = colourProvider.Colour1.Opacity(0.4f),
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BlurSigma = new Vector2(9f),
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Strength = 10,
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PadExtent = true
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}),
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}
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},
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};
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}
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public override void Show()
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{
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fillContent
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.FadeIn(50, Easing.OutQuint)
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.FlashColour(Color4.White, 1000, Easing.OutQuint);
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}
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public override void Hide()
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{
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fillContent
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.FadeOut(300, Easing.OutQuint);
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}
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}
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}
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}
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