46 lines
1 KiB
C#
46 lines
1 KiB
C#
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using System;
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using System.Threading;
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namespace Lidgren.Network
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{
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/// <summary>
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/// Class for generating random seeds
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/// </summary>
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public static class NetRandomSeed
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{
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private static int m_seedIncrement = -1640531527;
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/// <summary>
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/// Generates a 32 bit random seed
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/// </summary>
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[CLSCompliant(false)]
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public static uint GetUInt32()
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{
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ulong seed = GetUInt64();
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uint low = (uint)seed;
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uint high = (uint)(seed >> 32);
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return low ^ high;
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}
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/// <summary>
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/// Generates a 64 bit random seed
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/// </summary>
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[CLSCompliant(false)]
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public static ulong GetUInt64()
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{
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var guidBytes = Guid.NewGuid().ToByteArray();
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ulong seed =
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((ulong)guidBytes[0] << (8 * 0)) |
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((ulong)guidBytes[1] << (8 * 1)) |
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((ulong)guidBytes[2] << (8 * 2)) |
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((ulong)guidBytes[3] << (8 * 3)) |
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((ulong)guidBytes[4] << (8 * 4)) |
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((ulong)guidBytes[5] << (8 * 5)) |
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((ulong)guidBytes[6] << (8 * 6)) |
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((ulong)guidBytes[7] << (8 * 7));
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return seed ^ NetUtility.GetPlatformSeed(m_seedIncrement);
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}
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}
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}
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