mirror of
https://github.com/MirrorNetworking/Mirror.git
synced 2024-11-18 11:00:32 +00:00
562 lines
16 KiB
C#
562 lines
16 KiB
C#
#if ENABLE_UNET
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using System;
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using System.Text;
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using UnityEngine;
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namespace UnityEngine.Networking
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{
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/*
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// Binary stream Writer. Supports simple types, buffers, arrays, structs, and nested types
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*/
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public class NetworkWriter
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{
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const int k_MaxStringLength = 1024 * 32;
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NetBuffer m_Buffer;
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static Encoding s_Encoding;
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static byte[] s_StringWriteBuffer;
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public NetworkWriter()
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{
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m_Buffer = new NetBuffer();
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if (s_Encoding == null)
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{
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s_Encoding = new UTF8Encoding();
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s_StringWriteBuffer = new byte[k_MaxStringLength];
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}
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}
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public NetworkWriter(byte[] buffer)
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{
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m_Buffer = new NetBuffer(buffer);
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if (s_Encoding == null)
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{
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s_Encoding = new UTF8Encoding();
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s_StringWriteBuffer = new byte[k_MaxStringLength];
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}
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}
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// 'int' is the best type for .Position. 'short' is too small if we send >32kb which would result in negative .Position
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// 'uint' is exact but we serialize/deserialize array.Lengths often which are int's, so 'int' is easier and big enough too.
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public int Position
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{
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get
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{
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// uint to int conversion check. better safe than sorry.
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if (m_Buffer.Position > Int32.MaxValue)
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{
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if (LogFilter.logError) { Debug.LogError("NetworkWriter.Position exceeds Int32.MaxValue"); }
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}
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return (int)m_Buffer.Position;
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}
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}
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public byte[] ToArray()
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{
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var newArray = new byte[m_Buffer.AsArraySegment().Count];
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Array.Copy(m_Buffer.AsArraySegment().Array, newArray, m_Buffer.AsArraySegment().Count);
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return newArray;
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}
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public byte[] AsArray()
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{
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return AsArraySegment().Array;
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}
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internal ArraySegment<byte> AsArraySegment()
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{
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return m_Buffer.AsArraySegment();
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}
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// http://sqlite.org/src4/doc/trunk/www/varint.wiki
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public void WritePackedUInt32(UInt32 value)
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{
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if (value <= 240)
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{
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Write((byte)value);
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return;
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}
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if (value <= 2287)
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{
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Write((byte)((value - 240) / 256 + 241));
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Write((byte)((value - 240) % 256));
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return;
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}
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if (value <= 67823)
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{
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Write((byte)249);
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Write((byte)((value - 2288) / 256));
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Write((byte)((value - 2288) % 256));
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return;
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}
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if (value <= 16777215)
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{
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Write((byte)250);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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return;
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}
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// all other values of uint
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Write((byte)251);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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Write((byte)((value >> 24) & 0xFF));
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}
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public void WritePackedUInt64(UInt64 value)
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{
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if (value <= 240)
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{
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Write((byte)value);
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return;
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}
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if (value <= 2287)
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{
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Write((byte)((value - 240) / 256 + 241));
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Write((byte)((value - 240) % 256));
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return;
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}
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if (value <= 67823)
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{
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Write((byte)249);
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Write((byte)((value - 2288) / 256));
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Write((byte)((value - 2288) % 256));
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return;
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}
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if (value <= 16777215)
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{
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Write((byte)250);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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return;
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}
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if (value <= 4294967295)
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{
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Write((byte)251);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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Write((byte)((value >> 24) & 0xFF));
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return;
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}
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if (value <= 1099511627775)
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{
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Write((byte)252);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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Write((byte)((value >> 24) & 0xFF));
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Write((byte)((value >> 32) & 0xFF));
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return;
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}
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if (value <= 281474976710655)
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{
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Write((byte)253);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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Write((byte)((value >> 24) & 0xFF));
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Write((byte)((value >> 32) & 0xFF));
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Write((byte)((value >> 40) & 0xFF));
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return;
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}
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if (value <= 72057594037927935)
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{
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Write((byte)254);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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Write((byte)((value >> 24) & 0xFF));
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Write((byte)((value >> 32) & 0xFF));
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Write((byte)((value >> 40) & 0xFF));
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Write((byte)((value >> 48) & 0xFF));
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return;
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}
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// all others
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{
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Write((byte)255);
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Write((byte)(value & 0xFF));
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Write((byte)((value >> 8) & 0xFF));
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Write((byte)((value >> 16) & 0xFF));
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Write((byte)((value >> 24) & 0xFF));
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Write((byte)((value >> 32) & 0xFF));
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Write((byte)((value >> 40) & 0xFF));
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Write((byte)((value >> 48) & 0xFF));
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Write((byte)((value >> 56) & 0xFF));
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}
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}
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public void Write(NetworkInstanceId value)
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{
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WritePackedUInt32(value.Value);
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}
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public void Write(NetworkSceneId value)
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{
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WritePackedUInt32(value.Value);
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}
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public void Write(char value)
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{
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m_Buffer.WriteByte((byte)value);
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}
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public void Write(byte value)
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{
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m_Buffer.WriteByte(value);
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}
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public void Write(sbyte value)
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{
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m_Buffer.WriteByte((byte)value);
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}
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public void Write(short value)
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{
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m_Buffer.WriteByte2((byte)(value & 0xff), (byte)((value >> 8) & 0xff));
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}
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public void Write(ushort value)
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{
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m_Buffer.WriteByte2((byte)(value & 0xff), (byte)((value >> 8) & 0xff));
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}
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public void Write(int value)
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{
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// little endian...
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m_Buffer.WriteByte4(
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(byte)(value & 0xff),
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(byte)((value >> 8) & 0xff),
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(byte)((value >> 16) & 0xff),
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(byte)((value >> 24) & 0xff));
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}
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public void Write(uint value)
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{
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m_Buffer.WriteByte4(
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(byte)(value & 0xff),
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(byte)((value >> 8) & 0xff),
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(byte)((value >> 16) & 0xff),
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(byte)((value >> 24) & 0xff));
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}
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public void Write(long value)
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{
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m_Buffer.WriteByte8(
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(byte)(value & 0xff),
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(byte)((value >> 8) & 0xff),
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(byte)((value >> 16) & 0xff),
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(byte)((value >> 24) & 0xff),
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(byte)((value >> 32) & 0xff),
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(byte)((value >> 40) & 0xff),
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(byte)((value >> 48) & 0xff),
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(byte)((value >> 56) & 0xff));
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}
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public void Write(ulong value)
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{
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m_Buffer.WriteByte8(
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(byte)(value & 0xff),
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(byte)((value >> 8) & 0xff),
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(byte)((value >> 16) & 0xff),
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(byte)((value >> 24) & 0xff),
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(byte)((value >> 32) & 0xff),
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(byte)((value >> 40) & 0xff),
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(byte)((value >> 48) & 0xff),
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(byte)((value >> 56) & 0xff));
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}
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static UIntFloat s_FloatConverter;
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public void Write(float value)
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{
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s_FloatConverter.floatValue = value;
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Write(s_FloatConverter.intValue);
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}
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public void Write(double value)
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{
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s_FloatConverter.doubleValue = value;
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Write(s_FloatConverter.longValue);
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}
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public void Write(decimal value)
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{
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Int32[] bits = decimal.GetBits(value);
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Write(bits[0]);
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Write(bits[1]);
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Write(bits[2]);
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Write(bits[3]);
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}
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public void Write(string value)
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{
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if (value == null)
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{
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m_Buffer.WriteByte2(0, 0);
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return;
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}
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int len = s_Encoding.GetByteCount(value);
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if (len >= k_MaxStringLength)
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{
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throw new IndexOutOfRangeException("Serialize(string) too long: " + value.Length);
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}
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Write((ushort)(len));
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int numBytes = s_Encoding.GetBytes(value, 0, value.Length, s_StringWriteBuffer, 0);
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m_Buffer.WriteBytes(s_StringWriteBuffer, (ushort)numBytes);
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}
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public void Write(bool value)
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{
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if (value)
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m_Buffer.WriteByte(1);
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else
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m_Buffer.WriteByte(0);
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}
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public void Write(byte[] buffer, int count)
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{
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if (count > UInt16.MaxValue)
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{
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if (LogFilter.logError) { Debug.LogError("NetworkWriter Write: buffer is too large (" + count + ") bytes. The maximum buffer size is 64K bytes."); }
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return;
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}
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m_Buffer.WriteBytes(buffer, (UInt16)count);
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}
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public void Write(byte[] buffer, int offset, int count)
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{
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if (count > UInt16.MaxValue)
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{
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if (LogFilter.logError) { Debug.LogError("NetworkWriter Write: buffer is too large (" + count + ") bytes. The maximum buffer size is 64K bytes."); }
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return;
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}
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m_Buffer.WriteBytesAtOffset(buffer, (ushort)offset, (ushort)count);
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}
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public void WriteBytesAndSize(byte[] buffer, int count)
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{
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if (buffer == null || count == 0)
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{
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Write((UInt16)0);
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return;
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}
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if (count > UInt16.MaxValue)
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{
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if (LogFilter.logError) { Debug.LogError("NetworkWriter WriteBytesAndSize: buffer is too large (" + count + ") bytes. The maximum buffer size is 64K bytes."); }
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return;
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}
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Write((UInt16)count);
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m_Buffer.WriteBytes(buffer, (UInt16)count);
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}
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//NOTE: this will write the entire buffer.. including trailing empty space!
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public void WriteBytesFull(byte[] buffer)
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{
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if (buffer == null)
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{
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Write((UInt16)0);
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return;
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}
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if (buffer.Length > UInt16.MaxValue)
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{
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if (LogFilter.logError) { Debug.LogError("NetworkWriter WriteBytes: buffer is too large (" + buffer.Length + ") bytes. The maximum buffer size is 64K bytes."); }
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return;
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}
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Write((UInt16)buffer.Length);
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m_Buffer.WriteBytes(buffer, (UInt16)buffer.Length);
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}
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public void Write(Vector2 value)
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{
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Write(value.x);
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Write(value.y);
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}
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public void Write(Vector3 value)
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{
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Write(value.x);
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Write(value.y);
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Write(value.z);
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}
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public void Write(Vector4 value)
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{
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Write(value.x);
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Write(value.y);
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Write(value.z);
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Write(value.w);
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}
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public void Write(Color value)
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{
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Write(value.r);
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Write(value.g);
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Write(value.b);
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Write(value.a);
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}
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public void Write(Color32 value)
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{
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Write(value.r);
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Write(value.g);
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Write(value.b);
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Write(value.a);
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}
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public void Write(Quaternion value)
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{
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Write(value.x);
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Write(value.y);
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Write(value.z);
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Write(value.w);
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}
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public void Write(Rect value)
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{
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Write(value.xMin);
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Write(value.yMin);
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Write(value.width);
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Write(value.height);
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}
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public void Write(Plane value)
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{
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Write(value.normal);
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Write(value.distance);
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}
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public void Write(Ray value)
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{
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Write(value.direction);
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Write(value.origin);
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}
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public void Write(Matrix4x4 value)
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{
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Write(value.m00);
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Write(value.m01);
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Write(value.m02);
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Write(value.m03);
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Write(value.m10);
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Write(value.m11);
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Write(value.m12);
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Write(value.m13);
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Write(value.m20);
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Write(value.m21);
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Write(value.m22);
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Write(value.m23);
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Write(value.m30);
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Write(value.m31);
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Write(value.m32);
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Write(value.m33);
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}
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public void Write(NetworkHash128 value)
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{
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Write(value.i0);
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Write(value.i1);
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Write(value.i2);
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Write(value.i3);
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Write(value.i4);
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Write(value.i5);
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Write(value.i6);
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Write(value.i7);
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Write(value.i8);
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Write(value.i9);
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Write(value.i10);
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Write(value.i11);
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Write(value.i12);
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Write(value.i13);
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Write(value.i14);
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Write(value.i15);
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}
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public void Write(NetworkIdentity value)
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{
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if (value == null)
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{
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WritePackedUInt32(0);
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return;
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}
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Write(value.netId);
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}
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public void Write(Transform value)
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{
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if (value == null || value.gameObject == null)
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{
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WritePackedUInt32(0);
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return;
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}
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var uv = value.gameObject.GetComponent<NetworkIdentity>();
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if (uv != null)
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{
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Write(uv.netId);
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}
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else
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{
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if (LogFilter.logWarn) { Debug.LogWarning("NetworkWriter " + value + " has no NetworkIdentity"); }
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WritePackedUInt32(0);
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}
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}
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public void Write(GameObject value)
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{
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if (value == null)
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{
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WritePackedUInt32(0);
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return;
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}
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var uv = value.GetComponent<NetworkIdentity>();
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if (uv != null)
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{
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Write(uv.netId);
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}
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else
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{
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if (LogFilter.logWarn) { Debug.LogWarning("NetworkWriter " + value + " has no NetworkIdentity"); }
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WritePackedUInt32(0);
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}
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}
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public void Write(MessageBase msg)
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{
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msg.Serialize(this);
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}
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public void SeekZero()
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{
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m_Buffer.SeekZero();
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}
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public void StartMessage(short msgType)
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{
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SeekZero();
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// two bytes for size, will be filled out in FinishMessage
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m_Buffer.WriteByte2(0, 0);
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// two bytes for message type
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Write(msgType);
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}
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public void FinishMessage()
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{
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// writes correct size into space at start of buffer
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m_Buffer.FinishMessage();
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}
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};
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}
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#endif //ENABLE_UNET
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