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osu-lazer/osu.Game/Rulesets/UI/PlayfieldBorder.cs
2020-10-20 15:06:31 +09:00

150 lines
4.7 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.Linq;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Shapes;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Rulesets.UI
{
/// <summary>
/// Provides a border around the playfield.
/// </summary>
public class PlayfieldBorder : CompositeDrawable
{
public Bindable<PlayfieldBorderStyle> PlayfieldBorderStyle { get; } = new Bindable<PlayfieldBorderStyle>();
private const int fade_duration = 500;
private const float corner_length = 0.05f;
private const float corner_thickness = 2;
public PlayfieldBorder()
{
RelativeSizeAxes = Axes.Both;
InternalChildren = new Drawable[]
{
new Line(Direction.Horizontal)
{
Anchor = Anchor.TopLeft,
Origin = Anchor.TopLeft,
},
new Line(Direction.Horizontal)
{
Anchor = Anchor.TopRight,
Origin = Anchor.TopRight,
},
new Line(Direction.Horizontal)
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
},
new Line(Direction.Horizontal)
{
Anchor = Anchor.BottomRight,
Origin = Anchor.BottomRight,
},
new Line(Direction.Vertical)
{
Anchor = Anchor.TopLeft,
Origin = Anchor.TopLeft,
},
new Line(Direction.Vertical)
{
Anchor = Anchor.TopRight,
Origin = Anchor.TopRight,
},
new Line(Direction.Vertical)
{
Anchor = Anchor.BottomLeft,
Origin = Anchor.BottomLeft,
},
new Line(Direction.Vertical)
{
Anchor = Anchor.BottomRight,
Origin = Anchor.BottomRight,
},
};
}
protected override void LoadComplete()
{
base.LoadComplete();
PlayfieldBorderStyle.BindValueChanged(updateStyle, true);
}
private void updateStyle(ValueChangedEvent<PlayfieldBorderStyle> style)
{
switch (style.NewValue)
{
case UI.PlayfieldBorderStyle.None:
this.FadeOut(fade_duration, Easing.OutQuint);
foreach (var line in InternalChildren.OfType<Line>())
line.TweenLength(0);
break;
case UI.PlayfieldBorderStyle.Corners:
this.FadeIn(fade_duration, Easing.OutQuint);
foreach (var line in InternalChildren.OfType<Line>())
line.TweenLength(corner_length);
break;
case UI.PlayfieldBorderStyle.Full:
this.FadeIn(fade_duration, Easing.OutQuint);
foreach (var line in InternalChildren.OfType<Line>())
line.TweenLength(0.5f);
break;
}
}
private class Line : Box
{
private readonly Direction direction;
public Line(Direction direction)
{
this.direction = direction;
Colour = Color4.White;
// starting in relative avoids the framework thinking it knows best and setting the width to 1 initially.
switch (direction)
{
case Direction.Horizontal:
RelativeSizeAxes = Axes.X;
Size = new Vector2(0, corner_thickness);
break;
case Direction.Vertical:
RelativeSizeAxes = Axes.Y;
Size = new Vector2(corner_thickness, 0);
break;
}
}
public void TweenLength(float value)
{
switch (direction)
{
case Direction.Horizontal:
this.ResizeWidthTo(value, fade_duration, Easing.OutQuint);
break;
case Direction.Vertical:
this.ResizeHeightTo(value, fade_duration, Easing.OutQuint);
break;
}
}
}
}
}