osu/osu.Game.Rulesets.Catch/UI/CatcherTrailDisplay.cs

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// 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;
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using JetBrains.Annotations;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Animations;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Sprites;
using osuTK;
using osuTK.Graphics;
namespace osu.Game.Rulesets.Catch.UI
{
/// <summary>
/// Represents a component responsible for displaying
/// the appropriate catcher trails when requested to.
/// </summary>
public class CatcherTrailDisplay : CompositeDrawable
{
private readonly Catcher catcher;
private readonly Container<CatcherTrailSprite> dashTrails;
private readonly Container<CatcherTrailSprite> hyperDashTrails;
private readonly Container<CatcherTrailSprite> endGlowSprites;
private Color4 hyperDashTrailsColour;
public Color4 HyperDashTrailsColour
{
get => hyperDashTrailsColour;
set
{
if (hyperDashTrailsColour == value)
return;
hyperDashTrailsColour = value;
hyperDashTrails.FadeColour(hyperDashTrailsColour, Catcher.HYPER_DASH_TRANSITION_DURATION, Easing.OutQuint);
}
}
private Color4 endGlowSpritesColour;
public Color4 EndGlowSpritesColour
{
get => endGlowSpritesColour;
set
{
if (endGlowSpritesColour == value)
return;
endGlowSpritesColour = value;
endGlowSprites.FadeColour(endGlowSpritesColour, Catcher.HYPER_DASH_TRANSITION_DURATION, Easing.OutQuint);
}
}
private bool trail;
/// <summary>
/// Whether to start displaying trails following the catcher.
/// </summary>
public bool DisplayTrail
{
get => trail;
set
{
if (trail == value)
return;
trail = value;
if (trail)
displayTrail();
}
}
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public CatcherTrailDisplay([NotNull] Catcher catcher)
{
this.catcher = catcher ?? throw new ArgumentNullException(nameof(catcher));
RelativeSizeAxes = Axes.Both;
InternalChildren = new[]
{
dashTrails = new Container<CatcherTrailSprite> { RelativeSizeAxes = Axes.Both },
hyperDashTrails = new Container<CatcherTrailSprite> { RelativeSizeAxes = Axes.Both, Colour = Catcher.DEFAULT_HYPER_DASH_COLOUR },
endGlowSprites = new Container<CatcherTrailSprite> { RelativeSizeAxes = Axes.Both, Colour = Catcher.DEFAULT_HYPER_DASH_COLOUR },
};
}
/// <summary>
/// Displays a single end-glow catcher sprite.
/// </summary>
public void DisplayEndGlow()
{
var endGlow = createTrailSprite(endGlowSprites);
endGlow.MoveToOffset(new Vector2(0, -10), 1200, Easing.In);
endGlow.ScaleTo(endGlow.Scale * 0.95f).ScaleTo(endGlow.Scale * 1.2f, 1200, Easing.In);
endGlow.FadeOut(1200);
endGlow.Expire(true);
}
private void displayTrail()
{
if (!DisplayTrail)
return;
var sprite = createTrailSprite(catcher.HyperDashing ? hyperDashTrails : dashTrails);
sprite.FadeTo(0.4f).FadeOut(800, Easing.OutQuint);
sprite.Expire(true);
Scheduler.AddDelayed(displayTrail, catcher.HyperDashing ? 25 : 50);
}
private CatcherTrailSprite createTrailSprite(Container<CatcherTrailSprite> target)
{
var texture = (catcher.CurrentDrawableCatcher as TextureAnimation)?.CurrentFrame ?? ((Sprite)catcher.CurrentDrawableCatcher).Texture;
var sprite = new CatcherTrailSprite(texture)
{
Anchor = catcher.Anchor,
Scale = catcher.Scale,
Blending = BlendingParameters.Additive,
RelativePositionAxes = catcher.RelativePositionAxes,
Position = catcher.Position
};
target.Add(sprite);
return sprite;
}
}
}