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Implement local scrolling hit object container

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smoogipoo 2018-01-07 13:24:09 +09:00
parent 117ab8a26d
commit 4ab3b0d76b
3 changed files with 98 additions and 0 deletions
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79
osu.Game/Rulesets/UI/Scrolling/Algorithms/LocalScrollingAlgorithm.cs Normal file
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@ -0,0 +1,79 @@
// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu-framework/master/LICENCE
using System.Collections.Generic;
using osu.Framework.Lists;
using osu.Game.Rulesets.Objects.Drawables;
using osu.Game.Rulesets.Objects.Types;
using osu.Game.Rulesets.Timing;
using OpenTK;
namespace osu.Game.Rulesets.UI.Scrolling.Algorithms
{
public class LocalScrollingAlgorithm : IScrollingAlgorithm
{
private readonly Dictionary<DrawableHitObject, double> hitObjectPositions = new Dictionary<DrawableHitObject, double>();
private readonly SortedList<MultiplierControlPoint> controlPoints;
public LocalScrollingAlgorithm(SortedList<MultiplierControlPoint> controlPoints)
{
this.controlPoints = controlPoints;
}
public void ComputeInitialStates(IEnumerable<DrawableHitObject> hitObjects, ScrollingDirection direction, double timeRange, Vector2 length)
{
foreach (var obj in hitObjects)
{
var controlPoint = controlPointAt(obj.HitObject.StartTime);
obj.LifetimeStart = obj.HitObject.StartTime - timeRange / controlPoint.Multiplier;
obj.LifetimeEnd = ((obj as IHasEndTime)?.EndTime ?? obj.HitObject.StartTime) + timeRange / controlPoint.Multiplier;
}
}
public void ComputePositions(IEnumerable<DrawableHitObject> hitObjects, ScrollingDirection direction, double currentTime, double timeRange, Vector2 length)
{
foreach (var obj in hitObjects)
{
var controlPoint = controlPointAt(obj.HitObject.StartTime);
var position = (obj.HitObject.StartTime - currentTime) * controlPoint.Multiplier / timeRange;
switch (direction)
{
case ScrollingDirection.Up:
obj.Y = (float)(position * length.Y);
break;
case ScrollingDirection.Down:
obj.Y = (float)(-position * length.Y);
break;
case ScrollingDirection.Left:
obj.X = (float)(position * length.X);
break;
case ScrollingDirection.Right:
obj.X = (float)(-position * length.X);
break;
}
}
}
private readonly MultiplierControlPoint searchPoint = new MultiplierControlPoint();
private MultiplierControlPoint controlPointAt(double time)
{
if (controlPoints.Count == 0)
return new MultiplierControlPoint(double.NegativeInfinity);
if (time < controlPoints[0].StartTime)
return controlPoints[0];
searchPoint.StartTime = time;
int index = controlPoints.BinarySearch(searchPoint);
if (index < 0)
index = ~index - 1;
return controlPoints[index];
}
}
}

17
osu.Game/Rulesets/UI/Scrolling/LocalScrollingHitObjectContainer.cs Normal file
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// Copyright (c) 2007-2018 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu-framework/master/LICENCE
using osu.Game.Rulesets.UI.Scrolling.Algorithms;
namespace osu.Game.Rulesets.UI.Scrolling
{
public class LocalScrollingHitObjectContainer : ScrollingHitObjectContainer
{
public LocalScrollingHitObjectContainer(ScrollingDirection direction)
: base(direction)
{
}
protected override IScrollingAlgorithm CreateScrollingAlgorithm() => new LocalScrollingAlgorithm(ControlPoints);
}
}

2
osu.Game/osu.Game.csproj
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@ -318,7 +318,9 @@
<Compile Include="Rulesets\UI\HitObjectContainer.cs" />
<Compile Include="Rulesets\UI\Scrolling\Algorithms\GlobalScrollingAlgorithm.cs" />
<Compile Include="Rulesets\UI\Scrolling\Algorithms\IScrollingAlgorithm.cs" />
<Compile Include="Rulesets\UI\Scrolling\Algorithms\LocalScrollingAlgorithm.cs" />
<Compile Include="Rulesets\UI\Scrolling\GlobalScrollingHitObjectContainer.cs" />
<Compile Include="Rulesets\UI\Scrolling\LocalScrollingHitObjectContainer.cs" />
<Compile Include="Rulesets\UI\Scrolling\ScrollingDirection.cs" />
<Compile Include="Rulesets\UI\Scrolling\ScrollingHitObjectContainer.cs" />
<Compile Include="Rulesets\UI\Scrolling\ScrollingPlayfield.cs" />