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Minor cleanups for legacy beatmap decoders

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Replaces some string.StartsWith(string, StringComparison.Ordinal) calls with ring.StartsWith(char) , when only one char is compared. Possible since .NET-Standard 2.1

And another LegacyStoryboardDecoder.handleEvents() cleanup, saves some MB of allocations.
This commit is contained in:
Berkan Diler
2020-02-08 18:05:27 +01:00
parent 63696bff74
commit 5b452293d6
3 changed files with 8 additions and 7 deletions
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11
osu.Game/Beatmaps/Formats/LegacyStoryboardDecoder.cs
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@ -64,15 +64,16 @@ namespace osu.Game.Beatmaps.Formats
private void handleEvents(string line)
{
var depth = 0;
var lineSpan = line.AsSpan();
while (lineSpan.StartsWith(" ", StringComparison.Ordinal) || lineSpan.StartsWith("_", StringComparison.Ordinal))
foreach (char c in line)
{
lineSpan = lineSpan.Slice(1);
++depth;
if (c == ' ' || c == '_')
depth++;
else
break;
}
line = lineSpan.ToString();
line = line.Substring(depth);
decodeVariables(ref line);