icdsystems/ICD.Common.Utils
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feat: Added method for combining GUIDs to make deterministic GUIDs

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This commit is contained in:
Chris Cameron 2020-05-08 16:06:56 -04:00
parent bbb09666dd
commit f34e307a93
1 changed files with 17 additions and 0 deletions
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17
ICD.Common.Utils/GuidUtils.cs
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@ -4,6 +4,9 @@ namespace ICD.Common.Utils
{ {
public static class GuidUtils public static class GuidUtils
{ {
/// <summary>
/// Generates a pseudo-random guid from the given seed.
/// </summary>
public static Guid GenerateSeeded(int seed) public static Guid GenerateSeeded(int seed)
{ {
Random seeded = new Random(seed); Random seeded = new Random(seed);
@ -13,5 +16,19 @@ namespace ICD.Common.Utils
return new Guid(bytes); return new Guid(bytes);
} }
/// <summary>
/// Combines the two guids to make a new, deterministic guid.
/// </summary>
public static Guid Combine(Guid a, Guid b)
{
byte[] aBytes = a.ToByteArray();
byte[] bBytes = b.ToByteArray();
for (int index = 0; index < aBytes.Length; index++)
aBytes[index] = (byte)(aBytes[index] ^ bBytes[index]);
return new Guid(aBytes);
}
} }
} }