mirror of
https://github.com/kwsch/PKHeX
synced 2024-11-23 20:43:07 +00:00
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;
|
|
|
|
namespace PKHeX.Core;
|
|
|
|
/// <summary>
|
|
/// Utility logic for dealing with bitflags in a byte array.
|
|
/// </summary>
|
|
public static class FlagUtil
|
|
{
|
|
/// <summary>
|
|
/// Gets the requested <see cref="bitIndex"/> from the byte at <see cref="offset"/>.
|
|
/// </summary>
|
|
/// <param name="arr">Buffer to read</param>
|
|
/// <param name="offset">Offset of the byte</param>
|
|
/// <param name="bitIndex">Bit to read</param>
|
|
public static bool GetFlag(ReadOnlySpan<byte> arr, int offset, int bitIndex)
|
|
{
|
|
bitIndex &= 7; // ensure bit access is 0-7
|
|
return ((arr[offset] >> bitIndex) & 1) != 0;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Sets the requested <see cref="bitIndex"/> value to the byte at <see cref="offset"/>.
|
|
/// </summary>
|
|
/// <param name="arr">Buffer to modify</param>
|
|
/// <param name="offset">Offset of the byte</param>
|
|
/// <param name="bitIndex">Bit to write</param>
|
|
/// <param name="value">Bit flag value to set</param>
|
|
public static void SetFlag(Span<byte> arr, int offset, int bitIndex, bool value)
|
|
{
|
|
bitIndex &= 7; // ensure bit access is 0-7
|
|
var current = arr[offset] & ~(1 << bitIndex);
|
|
var newValue = current | ((value ? 1 : 0) << bitIndex);
|
|
arr[offset] = (byte)newValue;
|
|
}
|
|
}
|