2018-04-15 07:44:40 +00:00
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
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// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
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using System;
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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.Containers;
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using osu.Framework.Graphics.Shapes;
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using OpenTK.Graphics;
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namespace osu.Game.Graphics.Containers
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{
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public class WaveContainer : VisibilityContainer
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{
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public const float APPEAR_DURATION = 800;
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public const float DISAPPEAR_DURATION = 500;
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private const Easing easing_show = Easing.OutSine;
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private const Easing easing_hide = Easing.InSine;
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private readonly Wave firstWave;
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private readonly Wave secondWave;
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private readonly Wave thirdWave;
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private readonly Wave fourthWave;
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private readonly Container<Wave> wavesContainer;
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private readonly Container contentContainer;
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protected override Container<Drawable> Content => contentContainer;
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public Color4 FirstWaveColour
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{
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get => firstWave.Colour;
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set => firstWave.Colour = value;
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}
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public Color4 SecondWaveColour
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{
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get => secondWave.Colour;
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set => secondWave.Colour = value;
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}
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public Color4 ThirdWaveColour
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{
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get => thirdWave.Colour;
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set => thirdWave.Colour = value;
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}
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public Color4 FourthWaveColour
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{
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get => fourthWave.Colour;
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set => fourthWave.Colour = value;
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}
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public WaveContainer()
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{
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Masking = true;
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AddInternal(wavesContainer = new Container<Wave>
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{
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RelativeSizeAxes = Axes.X,
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Origin = Anchor.TopCentre,
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Anchor = Anchor.TopCentre,
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Masking = true,
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Children = new[]
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{
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firstWave = new Wave
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{
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Rotation = 13,
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FinalPosition = -930,
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},
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secondWave = new Wave
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{
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Origin = Anchor.TopRight,
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Anchor = Anchor.TopRight,
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Rotation = -7,
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FinalPosition = -560,
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},
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thirdWave = new Wave
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{
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Rotation = 4,
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FinalPosition = -390,
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},
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fourthWave = new Wave
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{
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Origin = Anchor.TopRight,
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Anchor = Anchor.TopRight,
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Rotation = -2,
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FinalPosition = -220,
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},
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},
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});
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AddInternal(contentContainer = new Container
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{
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RelativeSizeAxes = Axes.Both,
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Anchor = Anchor.BottomCentre,
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Origin = Anchor.BottomCentre,
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});
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}
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protected override void PopIn()
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{
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foreach (var w in wavesContainer.Children)
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w.State = Visibility.Visible;
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this.FadeIn(100, Easing.OutQuint);
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contentContainer.MoveToY(0, APPEAR_DURATION, Easing.OutQuint);
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this.FadeIn(100, Easing.OutQuint);
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}
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protected override void PopOut()
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{
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this.FadeOut(DISAPPEAR_DURATION, Easing.InQuint);
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contentContainer.MoveToY(DrawHeight * 2f, DISAPPEAR_DURATION, Easing.In);
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foreach (var w in wavesContainer.Children)
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w.State = Visibility.Hidden;
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this.FadeOut(DISAPPEAR_DURATION, Easing.InQuint);
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}
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protected override void UpdateAfterChildren()
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{
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base.UpdateAfterChildren();
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// This is done as an optimization, such that invisible parts of the waves
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// are masked away, and thus do not consume fill rate.
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wavesContainer.Height = Math.Max(0, DrawHeight - (contentContainer.DrawHeight - contentContainer.Y));
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}
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private class Wave : VisibilityContainer
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{
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public float FinalPosition;
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protected override bool StartHidden => true;
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public Wave()
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{
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RelativeSizeAxes = Axes.X;
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Width = 1.5f;
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Masking = true;
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EdgeEffect = new EdgeEffectParameters
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{
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Type = EdgeEffectType.Shadow,
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Colour = Color4.Black.Opacity(50),
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Radius = 20f,
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};
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Child = new Box { RelativeSizeAxes = Axes.Both };
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}
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protected override void Update()
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{
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base.Update();
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// We can not use RelativeSizeAxes for Height, because the height
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// of our parent diminishes as the content moves up.
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Height = Parent.Parent.DrawSize.Y * 1.5f;
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}
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protected override void PopIn() => this.MoveToY(FinalPosition, APPEAR_DURATION, easing_show);
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protected override void PopOut() => this.MoveToY(Parent.Parent.DrawSize.Y, DISAPPEAR_DURATION, easing_hide);
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}
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}
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}
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