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osu-lazer/osu.Game/Screens/Play/HUD/ModDisplay.cs
2022-06-17 16:37:17 +09:00

128 lines
3.6 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.
#nullable disable
using System;
using System.Collections.Generic;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.UserInterface;
using osu.Framework.Input.Events;
using osu.Game.Graphics.Containers;
using osu.Game.Rulesets.Mods;
using osu.Game.Rulesets.UI;
using osuTK;
namespace osu.Game.Screens.Play.HUD
{
/// <summary>
/// Displays a single-line horizontal auto-sized flow of mods. For cases where wrapping is required, use <see cref="ModFlowDisplay"/> instead.
/// </summary>
public class ModDisplay : CompositeDrawable, IHasCurrentValue<IReadOnlyList<Mod>>
{
private const int fade_duration = 1000;
public ExpansionMode ExpansionMode = ExpansionMode.ExpandOnHover;
private readonly BindableWithCurrent<IReadOnlyList<Mod>> current = new BindableWithCurrent<IReadOnlyList<Mod>>();
public Bindable<IReadOnlyList<Mod>> Current
{
get => current.Current;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
current.Current = value;
}
}
private readonly FillFlowContainer<ModIcon> iconsContainer;
public ModDisplay()
{
AutoSizeAxes = Axes.Both;
InternalChild = iconsContainer = new ReverseChildIDFillFlowContainer<ModIcon>
{
AutoSizeAxes = Axes.Both,
Direction = FillDirection.Horizontal,
};
}
protected override void LoadComplete()
{
base.LoadComplete();
Current.BindValueChanged(updateDisplay, true);
iconsContainer.FadeInFromZero(fade_duration, Easing.OutQuint);
}
private void updateDisplay(ValueChangedEvent<IReadOnlyList<Mod>> mods)
{
iconsContainer.Clear();
if (mods.NewValue == null) return;
foreach (Mod mod in mods.NewValue)
iconsContainer.Add(new ModIcon(mod) { Scale = new Vector2(0.6f) });
appearTransform();
}
private void appearTransform()
{
expand();
using (iconsContainer.BeginDelayedSequence(1200))
contract();
}
private void expand()
{
if (ExpansionMode != ExpansionMode.AlwaysContracted)
iconsContainer.TransformSpacingTo(new Vector2(5, 0), 500, Easing.OutQuint);
}
private void contract()
{
if (ExpansionMode != ExpansionMode.AlwaysExpanded)
iconsContainer.TransformSpacingTo(new Vector2(-25, 0), 500, Easing.OutQuint);
}
protected override bool OnHover(HoverEvent e)
{
expand();
return base.OnHover(e);
}
protected override void OnHoverLost(HoverLostEvent e)
{
contract();
base.OnHoverLost(e);
}
}
public enum ExpansionMode
{
/// <summary>
/// The <see cref="ModDisplay"/> will expand only when hovered.
/// </summary>
ExpandOnHover,
/// <summary>
/// The <see cref="ModDisplay"/> will always be expanded.
/// </summary>
AlwaysExpanded,
/// <summary>
/// The <see cref="ModDisplay"/> will always be contracted.
/// </summary>
AlwaysContracted
}
}