osu/osu.Game/Overlays/WaveOverlayContainer.cs

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// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using OpenTK.Graphics;
using osu.Framework.Extensions.Color4Extensions;
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using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics;
using System;
using osu.Framework.Graphics.Shapes;
using osu.Game.Graphics.Containers;
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namespace osu.Game.Overlays
{
public abstract class WaveOverlayContainer : OsuFocusedOverlayContainer
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{
protected const float APPEAR_DURATION = 800;
protected const float DISAPPEAR_DURATION = 500;
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private const Easing easing_show = Easing.OutSine;
private const Easing easing_hide = Easing.InSine;
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private readonly Wave firstWave;
private readonly Wave secondWave;
private readonly Wave thirdWave;
private readonly Wave fourthWave;
private readonly Container<Wave> wavesContainer;
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private readonly Container contentContainer;
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protected override bool BlockPassThroughKeyboard => true;
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protected override Container<Drawable> Content => contentContainer;
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protected Color4 FirstWaveColour
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{
get
{
return firstWave.Colour;
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}
set
{
if (firstWave.Colour == value) return;
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firstWave.Colour = value;
}
}
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protected Color4 SecondWaveColour
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{
get
{
return secondWave.Colour;
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}
set
{
if (secondWave.Colour == value) return;
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secondWave.Colour = value;
}
}
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protected Color4 ThirdWaveColour
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{
get
{
return thirdWave.Colour;
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}
set
{
if (thirdWave.Colour == value) return;
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thirdWave.Colour = value;
}
}
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protected Color4 FourthWaveColour
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{
get
{
return fourthWave.Colour;
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}
set
{
if (fourthWave.Colour == value) return;
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fourthWave.Colour = value;
}
}
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protected WaveOverlayContainer()
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{
Masking = true;
AddInternal(wavesContainer = new Container<Wave>
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{
RelativeSizeAxes = Axes.X,
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Origin = Anchor.TopCentre,
Anchor = Anchor.TopCentre,
Masking = true,
Children = new[]
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{
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firstWave = new Wave
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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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{
Origin = Anchor.TopRight,
Anchor = Anchor.TopRight,
Rotation = -7,
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FinalPosition = -560,
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},
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thirdWave = new Wave
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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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{
Origin = Anchor.TopRight,
Anchor = Anchor.TopRight,
Rotation = -2,
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FinalPosition = -220,
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},
},
});
AddInternal(contentContainer = new Container
{
RelativeSizeAxes = Axes.Both,
Anchor = Anchor.BottomCentre,
Origin = Anchor.BottomCentre,
});
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}
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protected override void PopIn()
{
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base.PopIn();
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foreach (var w in wavesContainer.Children)
w.State = Visibility.Visible;
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this.FadeIn(100, Easing.OutQuint);
contentContainer.MoveToY(0, APPEAR_DURATION, Easing.OutQuint);
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this.FadeIn(100, Easing.OutQuint);
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}
protected override void PopOut()
{
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base.PopOut();
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this.FadeOut(DISAPPEAR_DURATION, Easing.InQuint);
contentContainer.MoveToY(DrawHeight * 2f, DISAPPEAR_DURATION, Easing.In);
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foreach (var w in wavesContainer.Children)
w.State = Visibility.Hidden;
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this.FadeOut(DISAPPEAR_DURATION, Easing.InQuint);
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}
protected override void UpdateAfterChildren()
{
base.UpdateAfterChildren();
// This is done as an optimization, such that invisible parts of the waves
// are masked away, and thus do not consume fill rate.
wavesContainer.Height = Math.Max(0, DrawHeight - (contentContainer.DrawHeight - contentContainer.Y));
}
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private class Wave : VisibilityContainer
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{
public float FinalPosition;
protected override bool StartHidden => true;
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public Wave()
{
RelativeSizeAxes = Axes.X;
Width = 1.5f;
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Masking = true;
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EdgeEffect = new EdgeEffectParameters
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{
Type = EdgeEffectType.Shadow,
Colour = Color4.Black.Opacity(50),
Radius = 20f,
};
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Child = new Box { RelativeSizeAxes = Axes.Both };
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}
protected override void Update()
{
base.Update();
// We can not use RelativeSizeAxes for Height, because the height
// of our parent diminishes as the content moves up.
Height = Parent.Parent.DrawSize.Y * 1.5f;
}
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protected override void PopIn() => this.MoveToY(FinalPosition, APPEAR_DURATION, easing_show);
protected override void PopOut() => this.MoveToY(Parent.Parent.DrawSize.Y, DISAPPEAR_DURATION, easing_hide);
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}
}
}