48 lines
1.2 KiB
C#
48 lines
1.2 KiB
C#
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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#if !__ANDROID__ && !IOS && !UNITY_WEBPLAYER && !UNITY_ANDROID && !UNITY_IPHONE
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ulong seed = (ulong)System.Diagnostics.Stopwatch.GetTimestamp();
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seed ^= (ulong)Environment.WorkingSet;
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ulong s2 = (ulong)Interlocked.Increment(ref m_seedIncrement);
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s2 |= (((ulong)Guid.NewGuid().GetHashCode()) << 32);
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seed ^= s2;
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#else
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ulong seed = (ulong)Environment.TickCount;
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seed |= (((ulong)(new object().GetHashCode())) << 32);
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ulong s2 = (ulong)Guid.NewGuid().GetHashCode();
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s2 |= (((ulong)Interlocked.Increment(ref m_seedIncrement)) << 32);
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seed ^= s2;
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#endif
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return seed;
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}
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}
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}
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