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osu-lazer/osu.Game/Rulesets/Timing/ScrollingContainer.cs
smoogipooo d83a2d4dc6 Disable masking optimisations for scrolling hit objects
Lifetime is very tightly controlled here, so all should be okay.
2017-09-13 15:57:40 +09:00

94 lines
3.8 KiB
C#

// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using System;
using System.Linq;
using osu.Framework.Caching;
using osu.Framework.Configuration;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Game.Rulesets.Objects.Drawables;
using OpenTK;
using osu.Game.Rulesets.Objects.Types;
namespace osu.Game.Rulesets.Timing
{
/// <summary>
/// A container that scrolls relative to the current time. Will autosize to the total duration of all contained hit objects along the scrolling axes.
/// </summary>
public abstract class ScrollingContainer : Container<DrawableHitObject>
{
/// <summary>
/// Gets or sets the range of time that is visible by the length of the scrolling axes.
/// </summary>
public readonly BindableDouble VisibleTimeRange = new BindableDouble { Default = 1000 };
/// <summary>
/// The axes through which this <see cref="ScrollingContainer"/> scrolls. This is set by the <see cref="SpeedAdjustmentContainer"/>.
/// </summary>
internal Axes ScrollingAxes;
public override bool RemoveWhenNotAlive => false;
protected override bool RequiresChildrenUpdate => true;
/// <summary>
/// The control point that defines the speed adjustments for this container. This is set by the <see cref="SpeedAdjustmentContainer"/>.
/// </summary>
internal MultiplierControlPoint ControlPoint;
private Cached<double> durationBacking;
/// <summary>
/// Creates a new <see cref="ScrollingContainer"/>.
/// </summary>
protected ScrollingContainer()
{
RelativeSizeAxes = Axes.Both;
RelativePositionAxes = Axes.Both;
}
protected override int Compare(Drawable x, Drawable y)
{
var hX = (DrawableHitObject)x;
var hY = (DrawableHitObject)y;
int result = hY.HitObject.StartTime.CompareTo(hX.HitObject.StartTime);
if (result != 0)
return result;
return base.Compare(y, x);
}
public override void Add(DrawableHitObject drawable)
{
durationBacking.Invalidate();
base.Add(drawable);
}
public override bool Remove(DrawableHitObject drawable)
{
durationBacking.Invalidate();
return base.Remove(drawable);
}
// Todo: This may underestimate the size of the hit object in some cases, but won't be too much of a problem for now
private double computeDuration() => Math.Max(0, Children.Select(c => (c.HitObject as IHasEndTime)?.EndTime ?? c.HitObject.StartTime).DefaultIfEmpty().Max() - ControlPoint.StartTime) + 1000;
/// <summary>
/// An approximate total duration of this scrolling container.
/// </summary>
public double Duration => durationBacking.IsValid ? durationBacking : (durationBacking.Value = computeDuration());
protected override void Update()
{
base.Update();
RelativeChildOffset = new Vector2((ScrollingAxes & Axes.X) > 0 ? (float)ControlPoint.StartTime : 0, (ScrollingAxes & Axes.Y) > 0 ? (float)ControlPoint.StartTime : 0);
// We want our size and position-space along the scrolling axes to span our duration to completely enclose all the hit objects
Size = new Vector2((ScrollingAxes & Axes.X) > 0 ? (float)Duration : Size.X, (ScrollingAxes & Axes.Y) > 0 ? (float)Duration : Size.Y);
// And we need to make sure the hit object's position-space doesn't change due to our resizing
RelativeChildSize = Size;
}
}
}