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osu-lazer/osu.Game/Screens/Play/HUD/LegacyComboCounter.cs
2020-10-16 17:52:22 +09:00

253 lines
7.5 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 osu.Framework.Allocation;
using osu.Framework.Bindables;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osu.Game.Graphics.Sprites;
using osu.Game.Skinning;
using osuTK;
namespace osu.Game.Screens.Play.HUD
{
/// <summary>
/// Uses the 'x' symbol and has a pop-out effect while rolling over.
/// </summary>
public class LegacyComboCounter : CompositeDrawable, IComboCounter
{
public Bindable<int> Current { get; } = new BindableInt { MinValue = 0, };
private uint scheduledPopOutCurrentId;
private const double pop_out_duration = 150;
private const Easing pop_out_easing = Easing.None;
private const double fade_out_duration = 100;
/// <summary>
/// Duration in milliseconds for the counter roll-up animation for each element.
/// </summary>
private const double rolling_duration = 20;
private Drawable popOutCount;
private Drawable displayedCountSpriteText;
private int previousValue;
private int displayedCount;
private bool isRolling;
[Resolved]
private ISkinSource skin { get; set; }
public LegacyComboCounter()
{
AutoSizeAxes = Axes.Both;
Anchor = Anchor.BottomLeft;
Origin = Anchor.BottomLeft;
Margin = new MarginPadding(10);
Scale = new Vector2(1.2f);
}
/// <summary>
/// Value shown at the current moment.
/// </summary>
public virtual int DisplayedCount
{
get => displayedCount;
private set
{
if (displayedCount.Equals(value))
return;
if (isRolling)
onDisplayedCountRolling(displayedCount, value);
else if (displayedCount + 1 == value)
onDisplayedCountIncrement(value);
else
onDisplayedCountChange(value);
displayedCount = value;
}
}
[BackgroundDependencyLoader]
private void load()
{
InternalChildren = new[]
{
displayedCountSpriteText = createSpriteText().With(s =>
{
s.Alpha = 0;
}),
popOutCount = createSpriteText().With(s =>
{
s.Alpha = 0;
s.Margin = new MarginPadding(0.05f);
})
};
Current.ValueChanged += combo => updateCount(combo.NewValue == 0);
}
protected override void LoadComplete()
{
base.LoadComplete();
((IHasText)displayedCountSpriteText).Text = formatCount(Current.Value);
displayedCountSpriteText.Anchor = Anchor;
displayedCountSpriteText.Origin = Origin;
popOutCount.Origin = Origin;
popOutCount.Anchor = Anchor;
updateCount(false);
}
private void updateCount(bool rolling)
{
int prev = previousValue;
previousValue = Current.Value;
if (!IsLoaded)
return;
if (!rolling)
{
FinishTransforms(false, nameof(DisplayedCount));
isRolling = false;
DisplayedCount = prev;
if (prev + 1 == Current.Value)
onCountIncrement(prev, Current.Value);
else
onCountChange(prev, Current.Value);
}
else
{
onCountRolling(displayedCount, Current.Value);
isRolling = true;
}
}
private void transformPopOut(int newValue)
{
((IHasText)popOutCount).Text = formatCount(newValue);
popOutCount.ScaleTo(1.6f);
popOutCount.FadeTo(0.75f);
popOutCount.MoveTo(Vector2.Zero);
popOutCount.ScaleTo(1, pop_out_duration, pop_out_easing);
popOutCount.FadeOut(pop_out_duration, pop_out_easing);
popOutCount.MoveTo(displayedCountSpriteText.Position, pop_out_duration, pop_out_easing);
}
private void transformNoPopOut(int newValue)
{
((IHasText)displayedCountSpriteText).Text = formatCount(newValue);
displayedCountSpriteText.ScaleTo(1);
}
private void transformPopOutSmall(int newValue)
{
((IHasText)displayedCountSpriteText).Text = formatCount(newValue);
displayedCountSpriteText.ScaleTo(1.1f);
displayedCountSpriteText.ScaleTo(1, pop_out_duration, pop_out_easing);
}
private void scheduledPopOutSmall(uint id)
{
// Too late; scheduled task invalidated
if (id != scheduledPopOutCurrentId)
return;
DisplayedCount++;
}
private void onCountIncrement(int currentValue, int newValue)
{
scheduledPopOutCurrentId++;
if (DisplayedCount < currentValue)
DisplayedCount++;
displayedCountSpriteText.Show();
transformPopOut(newValue);
uint newTaskId = scheduledPopOutCurrentId;
Scheduler.AddDelayed(delegate
{
scheduledPopOutSmall(newTaskId);
}, pop_out_duration);
}
private void onCountRolling(int currentValue, int newValue)
{
scheduledPopOutCurrentId++;
// Hides displayed count if was increasing from 0 to 1 but didn't finish
if (currentValue == 0 && newValue == 0)
displayedCountSpriteText.FadeOut(fade_out_duration);
transformRoll(currentValue, newValue);
}
private void onCountChange(int currentValue, int newValue)
{
scheduledPopOutCurrentId++;
if (newValue == 0)
displayedCountSpriteText.FadeOut();
DisplayedCount = newValue;
}
private void onDisplayedCountRolling(int currentValue, int newValue)
{
if (newValue == 0)
displayedCountSpriteText.FadeOut(fade_out_duration);
else
displayedCountSpriteText.Show();
transformNoPopOut(newValue);
}
private void onDisplayedCountChange(int newValue)
{
displayedCountSpriteText.FadeTo(newValue == 0 ? 0 : 1);
transformNoPopOut(newValue);
}
private void onDisplayedCountIncrement(int newValue)
{
displayedCountSpriteText.Show();
transformPopOutSmall(newValue);
}
private void transformRoll(int currentValue, int newValue) =>
this.TransformTo(nameof(DisplayedCount), newValue, getProportionalDuration(currentValue, newValue), Easing.None);
private string formatCount(int count) => $@"{count}x";
private double getProportionalDuration(int currentValue, int newValue)
{
double difference = currentValue > newValue ? currentValue - newValue : newValue - currentValue;
return difference * rolling_duration;
}
private OsuSpriteText createSpriteText() => (OsuSpriteText)skin.GetDrawableComponent(new HUDSkinComponent(HUDSkinComponents.ComboText));
}
}