Unity帧同步demo服务端和客户端

unity帧同步demo版，其中包括客户端和服务端，客户端是unity，服务端是skynet的

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;

public class KCP
{
    public const int IKCP_RTO_NDL     = 30;  // no delay min rto
    public const int IKCP_RTO_MIN     = 100; // normal min rto
    public const int IKCP_RTO_DEF     = 200;
    public const int IKCP_RTO_MAX     = 60000;
    public const int IKCP_CMD_PUSH    = 81; // cmd: push data
    public const int IKCP_CMD_ACK     = 82; // cmd: ack
    public const int IKCP_CMD_WASK    = 83; // cmd: window probe （ask）
    public const int IKCP_CMD_WINS    = 84; // cmd: window size （tell）
    public const int IKCP_ASK_SEND    = 1;  // need to send IKCP_CMD_WASK
    public const int IKCP_ASK_TELL    = 2;  // need to send IKCP_CMD_WINS
    public const int IKCP_WND_SND     = 32;
    public const int IKCP_WND_RCV     = 32;
    public const int IKCP_MTU_DEF     = 1400;
    public const int IKCP_ACK_FAST    = 3;
    public const int IKCP_INTERVAL    = 100;
    public const int IKCP_OVERHEAD    = 24;
    public const int IKCP_DEADlink    = 10;
    public const int IKCP_THRESH_INIT = 2;
    public const int IKCP_THRESH_MIN  = 2;
    public const int IKCP_PROBE_INIT  = 7000;   // 7 secs to probe window size
    public const int IKCP_PROBE_LIMIT = 120000; // up to 120 secs to probe window


    // encode 8 bits unsigned int
    public static int ikcp_encode8u（byte[] p int offset byte c）
    {
        p[0 + offset] = c;
        return 1;
    }

    // decode 8 bits unsigned int
    public static int ikcp_decode8u（byte[] p int offset ref byte c）
    {
        c = p[0 + offset];
        return 1;
    }

     /* encode 16 bits unsigned int （lsb） */
    public static int ikcp_encode16u（byte[] p int offset UInt16 w） 
    {
        p[0 + offset] = （byte）（w >> 0）;
        p[1 + offset] = （byte）（w >> 8）;
        return 2;
    }

    /* decode 16 bits unsigned int （lsb） */
    public static int ikcp_decode16u（byte[] p int offset ref UInt16 c）  
    {
        UInt16 result = 0;
        result |= （UInt16）p[0 + offset];
        result |= （UInt16）（p[1 + offset] << 8）;
        c = result;
        return 2;
    }

    /* encode 32 bits unsigned int （lsb） */
    public static int ikcp_encode32u（byte[] p int offset UInt32 l）
    {
        p[0 + offset] = （byte）（l >> 0）;
        p[1 + offset] = （byte）（l >> 8）;
        p[2 + offset] = （byte）（l >> 16）;
        p[3 + offset] = （byte）（l >> 24）;
        return 4;
    }

    /* decode 32 bits unsigned int （lsb） */
    public static int ikcp_decode32u（byte[] p int offset ref UInt32 c） 
    {
        UInt32 result = 0;
        result |= （UInt32）p[0 + offset];
        result |= （UInt32）（p[1 + offset] << 8）;
        result |= （UInt32）（p[2 + offset] << 16）;
        result |= （UInt32）（p[3 + offset] << 24）;
        c = result;
        return 4;
    }

    public static byte[] slice（byte[] p int start int stop） {
        var bytes =

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2018-11-30 09:26  BrickAndBall-master\
     文件         336  2018-10-21 21:52  BrickAndBall-master\.gitignore
     目录           0  2018-11-19 11:02  BrickAndBall-master\.vs\
     目录           0  2018-11-19 11:02  BrickAndBall-master\.vs\BrickAndBall-master\
     目录           0  2018-11-19 17:59  BrickAndBall-master\.vs\BrickAndBall-master\v15\
     文件      153600  2018-11-26 16:48  BrickAndBall-master\.vs\BrickAndBall-master\v15\.suo
     文件      921600  2018-11-19 17:59  BrickAndBall-master\.vs\BrickAndBall-master\v15\Browse.VC.db
     目录           0  2018-11-19 11:02  BrickAndBall-master\.vs\BrickAndBall-master\v15\Server\
     目录           0  2018-11-19 11:02  BrickAndBall-master\.vs\BrickAndBall-master\v15\Server\sqlite3\
     文件           0  2018-11-19 11:02  BrickAndBall-master\.vs\BrickAndBall-master\v15\Server\sqlite3\db.lock
     文件        4096  2018-11-19 11:02  BrickAndBall-master\.vs\BrickAndBall-master\v15\Server\sqlite3\storage.ide
     文件       32768  2018-11-26 09:49  BrickAndBall-master\.vs\BrickAndBall-master\v15\Server\sqlite3\storage.ide-shm
     文件     3180672  2018-11-26 16:48  BrickAndBall-master\.vs\BrickAndBall-master\v15\Server\sqlite3\storage.ide-wal
     目录           0  2018-11-19 17:08  BrickAndBall-master\.vs\BrickAndBall-master\v15\ipch\
     目录           0  2018-11-19 17:08  BrickAndBall-master\.vs\BrickAndBall-master\v15\ipch\AutoPCH\
     目录           0  2018-11-19 17:08  BrickAndBall-master\.vs\BrickAndBall-master\v15\ipch\AutoPCH\18c2aa80e3abc177\
     文件     1114112  2018-11-19 17:08  BrickAndBall-master\.vs\BrickAndBall-master\v15\ipch\AutoPCH\18c2aa80e3abc177\LUTIL.ipch
     目录           0  2018-11-19 17:08  BrickAndBall-master\.vs\BrickAndBall-master\v15\ipch\AutoPCH\b3cde4fa0f6eda43\
     文件     1114112  2018-11-19 17:08  BrickAndBall-master\.vs\BrickAndBall-master\v15\ipch\AutoPCH\b3cde4fa0f6eda43\LKCP.ipch
     目录           0  2018-10-21 21:52  BrickAndBall-master\Assets\
     目录           0  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\
     目录           0  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\
     文件      190677  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween.xml
     文件         200  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween.xml.meta
     文件      143872  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween.dll
     文件       55846  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween.dll.mdb
     文件         197  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween.dll.mdb.meta
     文件         693  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween.dll.meta
     文件        9728  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween43.dll
     文件        1789  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween43.dll.mdb
     文件         197  2018-10-21 21:52  BrickAndBall-master\Assets\3rd\DOTween\DOTween43.dll.mdb.meta
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