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Code Issues Releases Wiki Activity

Early-return on potential division by zero in SPM calculation

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This commit is contained in:
Salman Ahmed 2019-12-18 03:03:12 +03:00
parent b841b78cad
commit 7e58b4a948
1 changed files with 6 additions and 0 deletions
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6
osu.Game.Rulesets.Osu/Objects/Drawables/Pieces/SpinnerSpmCounter.cs
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@ -6,6 +6,7 @@ using System.Collections.Generic;
using System.Linq;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.MathUtils;
using osu.Game.Graphics;
using osu.Game.Graphics.Sprites;
@ -62,6 +63,10 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
public void SetRotation(float currentRotation)
{
// Never calculate SPM by same time of record to avoid 0 / 0 = NaN or X / 0 = Infinity result.
if (Precision.AlmostEquals(0, Time.Elapsed))
return;
// If we've gone back in time, it's fine to work with a fresh set of records for now
if (records.Count > 0 && Time.Current < records.Last().Time)
records.Clear();
@ -71,6 +76,7 @@ namespace osu.Game.Rulesets.Osu.Objects.Drawables.Pieces
var record = records.Peek();
while (records.Count > 0 && Time.Current - records.Peek().Time > spm_count_duration)
record = records.Dequeue();
SpinsPerMinute = (currentRotation - record.Rotation) / (Time.Current - record.Time) * 1000 * 60 / 360;
}