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Merge pull request #828 from smoogipooo/ColdVolcano/beat-syncing

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Add beat syncing container
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Dean Herbert 2017-05-23 11:25:24 +09:00 committed by GitHub
commit d1eb8937b7
2 changed files with 61 additions and 0 deletions
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60
osu.Game/Graphics/Containers/BeatSyncedContainer.cs Normal file
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// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
using osu.Framework.Allocation;
using osu.Framework.Configuration;
using osu.Framework.Graphics.Containers;
using osu.Game.Beatmaps;
using osu.Game.Beatmaps.Timing;
namespace osu.Game.Graphics.Containers
{
public class BeatSyncedContainer : Container
{
private readonly Bindable<WorkingBeatmap> beatmap = new Bindable<WorkingBeatmap>();
private int lastBeat;
private ControlPoint lastControlPoint;
protected override void Update()
{
if (beatmap.Value?.Track == null)
return;
double currentTrackTime = beatmap.Value.Track.CurrentTime;
ControlPoint overridePoint;
ControlPoint controlPoint = beatmap.Value.Beatmap.TimingInfo.TimingPointAt(currentTrackTime, out overridePoint);
if (controlPoint.BeatLength == 0)
return;
bool kiai = (overridePoint ?? controlPoint).KiaiMode;
int beat = (int)((currentTrackTime - controlPoint.Time) / controlPoint.BeatLength);
// The beats before the start of the first control point are off by 1, this should do the trick
if (currentTrackTime < controlPoint.Time)
beat--;
if (controlPoint == lastControlPoint && beat == lastBeat)
return;
double offsetFromBeat = (controlPoint.Time - currentTrackTime) % controlPoint.BeatLength;
using (BeginDelayedSequence(offsetFromBeat, true))
OnNewBeat(beat, controlPoint.BeatLength, controlPoint.TimeSignature, kiai);
lastBeat = beat;
lastControlPoint = controlPoint;
}
[BackgroundDependencyLoader]
private void load(OsuGameBase game)
{
beatmap.BindTo(game.Beatmap);
}
protected virtual void OnNewBeat(int newBeat, double beatLength, TimeSignatures timeSignature, bool kiai)
{
}
}
}

1
osu.Game/osu.Game.csproj
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@ -293,6 +293,7 @@
<Compile Include="Graphics\UserInterface\RollingCounter.cs" />
<Compile Include="Graphics\UserInterface\Volume\VolumeControlReceptor.cs" />
<Compile Include="Graphics\Backgrounds\Background.cs" />
<Compile Include="Graphics\Containers\BeatSyncedContainer.cs" />
<Compile Include="Graphics\Containers\ParallaxContainer.cs" />
<Compile Include="Graphics\Cursor\MenuCursor.cs" />
<Compile Include="Graphics\Processing\RatioAdjust.cs" />