ball 项目提交

2026-04-20 12:06:34 +08:00
parent 4331ebba60
commit 99145facbd
6052 changed files with 576445 additions and 0 deletions
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+#if DEBUG && !UNITY_WP_8_1 && !UNITY_WSA
+using System;
+using FlyingWormConsole3.LiteNetLib.Utils;
+
+namespace FlyingWormConsole3.LiteNetLib
+{
+    internal enum PacketProperty : byte
+    {
+        Unreliable,             //0
+        Reliable,               //1
+        Sequenced,              //2
+        ReliableOrdered,        //3
+        AckReliable,            //4
+        AckReliableOrdered,     //5
+        Ping,                   //6
+        Pong,                   //7
+        ConnectRequest,         //8
+        ConnectAccept,          //9
+        Disconnect,             //10
+        UnconnectedMessage,     //11
+        NatIntroductionRequest, //12
+        NatIntroduction,        //13
+        NatPunchMessage,        //14
+        MtuCheck,               //15
+        MtuOk,                  //16
+        DiscoveryRequest,       //17
+        DiscoveryResponse,      //18
+        Merged                  //19
+    }
+
+    internal sealed class NetPacket
+    {
+        private const int LastProperty = 19;
+
+        //Header
+        public PacketProperty Property
+        {
+            get { return (PacketProperty)(RawData[0] & 0x7F); }
+            set { RawData[0] = (byte)((RawData[0] & 0x80) | ((byte)value & 0x7F)); }
+        }
+
+        public ushort Sequence
+        {
+            get { return BitConverter.ToUInt16(RawData, 1); }
+            set { FastBitConverter.GetBytes(RawData, 1, value); }
+        }
+
+        public bool IsFragmented
+        {
+            get { return (RawData[0] & 0x80) != 0; }
+            set
+            {
+                if (value)
+                    RawData[0] |= 0x80; //set first bit
+                else
+                    RawData[0] &= 0x7F; //unset first bit
+            }
+        }
+
+        public ushort FragmentId
+        {
+            get { return BitConverter.ToUInt16(RawData, 3); }
+            set { FastBitConverter.GetBytes(RawData, 3, value); }
+        }
+
+        public ushort FragmentPart
+        {
+            get { return BitConverter.ToUInt16(RawData, 5); }
+            set { FastBitConverter.GetBytes(RawData, 5, value); }
+        }
+
+        public ushort FragmentsTotal
+        {
+            get { return BitConverter.ToUInt16(RawData, 7); }
+            set { FastBitConverter.GetBytes(RawData, 7, value); }
+        }
+
+        //Data
+        public readonly byte[] RawData;
+        public int Size;
+
+        public NetPacket(int size)
+        {
+            RawData = new byte[size];
+            Size = 0;
+        }
+
+        public static bool GetPacketProperty(byte[] data, out PacketProperty property)
+        {
+            byte properyByte = (byte)(data[0] & 0x7F);
+            if (properyByte > LastProperty)
+            {
+                property = PacketProperty.Unreliable;
+                return false;
+            }
+            property = (PacketProperty)properyByte;
+            return true;
+        }
+
+        public static int GetHeaderSize(PacketProperty property)
+        {
+            return IsSequenced(property)
+                ? NetConstants.SequencedHeaderSize
+                : NetConstants.HeaderSize;
+        }
+
+        public int GetHeaderSize()
+        {
+            return GetHeaderSize(Property);
+        }
+
+        public byte[] GetPacketData()
+        {
+            int headerSize = GetHeaderSize(Property);
+            int dataSize = Size - headerSize;
+            byte[] data = new byte[dataSize];
+            Buffer.BlockCopy(RawData, headerSize, data, 0, dataSize);
+            return data;
+        }
+
+        public bool IsClientData()
+        {
+            var property = Property;
+            return property == PacketProperty.Reliable ||
+                   property == PacketProperty.ReliableOrdered ||
+                   property == PacketProperty.Unreliable ||
+                   property == PacketProperty.Sequenced;
+        }
+
+        public static bool IsSequenced(PacketProperty property)
+        {
+            return property == PacketProperty.ReliableOrdered ||
+                property == PacketProperty.Reliable ||
+                property == PacketProperty.Sequenced ||
+                property == PacketProperty.Ping ||
+                property == PacketProperty.Pong ||
+                property == PacketProperty.AckReliable ||
+                property == PacketProperty.AckReliableOrdered;
+        }
+
+        //Packet contstructor from byte array
+        public bool FromBytes(byte[] data, int start, int packetSize)
+        {
+            //Reading property
+            byte property = (byte)(data[start] & 0x7F);
+            bool fragmented = (data[start] & 0x80) != 0;
+            int headerSize = GetHeaderSize((PacketProperty) property);
+
+            if (property > LastProperty ||
+                packetSize > NetConstants.PacketSizeLimit ||
+                packetSize < headerSize ||
+                (fragmented && packetSize < headerSize + NetConstants.FragmentHeaderSize))
+            {
+                return false;
+            }
+
+            Buffer.BlockCopy(data, start, RawData, 0, packetSize);
+            Size = packetSize;
+            return true;
+        }
+    }
+}
+#endif