mirror of
https://github.com/kwsch/PKHeX
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fc754b346b
[Language Reference](https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/proposals/csharp-10.0/file-scoped-namespaces) Updates all the files, one less level of indentation. Some small changes were made to API surfaces, renaming `PKM pkm` -> `PKM pk`, and `LegalityAnalysis.pkm` -> `LegalityAnalysis.Entity`
36 lines
1.3 KiB
C#
36 lines
1.3 KiB
C#
using System;
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namespace PKHeX.Core;
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/// <summary>
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/// Utility logic for dealing with bitflags in a byte array.
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/// </summary>
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public static class FlagUtil
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{
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/// <summary>
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/// Gets the requested <see cref="bitIndex"/> from the byte at <see cref="offset"/>.
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/// </summary>
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/// <param name="arr">Buffer to read</param>
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/// <param name="offset">Offset of the byte</param>
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/// <param name="bitIndex">Bit to read</param>
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public static bool GetFlag(ReadOnlySpan<byte> arr, int offset, int bitIndex)
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{
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bitIndex &= 7; // ensure bit access is 0-7
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return ((arr[offset] >> bitIndex) & 1) != 0;
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}
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/// <summary>
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/// Sets the requested <see cref="bitIndex"/> value to the byte at <see cref="offset"/>.
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/// </summary>
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/// <param name="arr">Buffer to modify</param>
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/// <param name="offset">Offset of the byte</param>
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/// <param name="bitIndex">Bit to write</param>
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/// <param name="value">Bit flag value to set</param>
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public static void SetFlag(Span<byte> arr, int offset, int bitIndex, bool value)
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{
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bitIndex &= 7; // ensure bit access is 0-7
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var current = arr[offset] & ~(1 << bitIndex);
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var newValue = current | ((value ? 1 : 0) << bitIndex);
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arr[offset] = (byte)newValue;
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}
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}
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