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Updates Message Packets (#321)

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### API Breaking Change
Combined `AsciiMessage` and `UnicodeMessage` into a single function that takes two arguments, `bool ascii` and `string lang`. Lang can be null (or anything) if ascii is true. 

- [X] Changes message packets
- [X] Cleans up some code
- [X] Uses benchmarks to determine if the spanwriter + copyfrom
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Kamron Batman 2020-11-20 21:50:13 -08:00 • committed by GitHub
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59 changed files with 1160 additions and 1025 deletions
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Projects/Server/Network/Packets/OutgoingMessagePackets.cs Normal file
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/*************************************************************************
* ModernUO *
* Copyright 2019-2020 - ModernUO Development Team *
* Email: hi@modernuo.com *
* File: OutgoingMessagePackets.cs *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
*************************************************************************/
using System;
using System.Buffers;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
namespace Server.Network
{
[Flags]
public enum AffixType : byte
{
Append = 0x00,
Prepend = 0x01,
System = 0x02
}
public static class OutgoingMessagePackets
{
public static void SendMessageLocalized(
this NetState ns,
Serial serial, int graphic, MessageType type, int hue, int font, int number, string name = "", string args = ""
)
{
if (ns == null)
{
return;
}
Span<byte> buffer = stackalloc byte[GetMaxMessageLocalizedLength(args)];
var length = CreateMessageLocalized(
ref buffer,
serial, graphic, type, hue, font, number, name, args
);
ns.Send(buffer.Slice(0, length));
}
public static int GetMaxMessageLocalizedLength(string args) => 50 + (args?.Length ?? 0) * 2;
public static int CreateMessageLocalized(
ref Span<byte> buffer,
Serial serial, int graphic, MessageType type, int hue, int font, int number, string name = "", string args = ""
)
{
name = name?.Trim() ?? "";
args = args?.Trim() ?? "";
if (hue == 0)
{
hue = 0x3B2;
}
var writer = new SpanWriter(buffer);
writer.Write((byte)0xC1);
writer.Seek(2, SeekOrigin.Current);
writer.Write(serial);
writer.Write((short)graphic);
writer.Write((byte)type);
writer.Write((short)hue);
writer.Write((short)font);
writer.Write(number);
writer.WriteAscii(name, 30);
writer.WriteLittleUniNull(args);
writer.WritePacketLength();
return writer.Position;
}
public static void SendMessageLocalizedAffix(
this NetState ns,
Serial serial, int graphic, MessageType type, int hue, int font, int number, string name,
AffixType affixType, string affix = "", string args = ""
)
{
if (ns == null)
{
return;
}
Span<byte> buffer = stackalloc byte[GetMaxMessageLocalizedAffixLength(affix, args)];
var length = CreateMessageLocalizedAffix(
ref buffer,
serial, graphic, type, hue, font, number, name, affixType, affix, args
);
ns.Send(buffer.Slice(0, length));
}
public static int GetMaxMessageLocalizedAffixLength(string affix, string args) =>
52 + (affix?.Length ?? 0) + (args?.Length ?? 0) * 2;
public static int CreateMessageLocalizedAffix(
ref Span<byte> buffer,
Serial serial, int graphic, MessageType type, int hue, int font, int number, string name,
AffixType affixType, string affix = "", string args = ""
)
{
name = name?.Trim() ?? "";
affix = affix?.Trim() ?? "";
args = args?.Trim() ?? "";
if (hue == 0)
{
hue = 0x3B2;
}
var writer = new SpanWriter(buffer);
writer.Write((byte)0xCC);
writer.Seek(2, SeekOrigin.Current);
writer.Write(serial);
writer.Write((short)graphic);
writer.Write((byte)type);
writer.Write((short)hue);
writer.Write((short)font);
writer.Write(number);
writer.Write((byte)affixType);
writer.WriteAscii(name, 30);
writer.WriteAsciiNull(affix);
writer.WriteBigUniNull(args);
writer.WritePacketLength();
return writer.Position;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void SendMessage(
this NetState ns,
Serial serial, int graphic, MessageType type, int hue, int font, bool ascii, string lang, string name, string text
)
{
if (ns == null)
{
return;
}
Span<byte> buffer = stackalloc byte[GetMaxMessageLength(text)];
var length = CreateMessage(
ref buffer,
serial,
graphic,
type,
hue,
font,
ascii,
lang,
name,
text
);
ns.Send(buffer.Slice(0, length));
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int GetMaxMessageLength(string text) => 50 + (text?.Length ?? 0) * 2;
public static int CreateMessage(
ref Span<byte> buffer,
Serial serial,
int graphic,
MessageType type,
int hue,
int font,
bool ascii,
string lang,
string name,
string text
)
{
name = name?.Trim() ?? "";
text = text?.Trim() ?? "";
lang = lang?.Trim() ?? "ENU";
if (hue == 0)
{
hue = 0x3B2;
}
var writer = new SpanWriter(buffer);
writer.Write((byte)(ascii ? 0x1C : 0xAE)); // Packet ID
writer.Seek(2, SeekOrigin.Current);
writer.Write(serial);
writer.Write((short)graphic);
writer.Write((byte)type);
writer.Write((short)hue);
writer.Write((short)font);
if (ascii)
{
writer.WriteAscii(name, 30);
writer.WriteAsciiNull(text);
}
else
{
writer.WriteAscii(lang, 4);
writer.WriteAscii(name, 30);
writer.WriteBigUniNull(text);
}
writer.WritePacketLength();
return writer.Position;
}
public static void SendFollowMessage(this NetState ns, Serial s1, Serial s2)
{
if (ns == null || !ns.GetSendBuffer(out var buffer))
{
return;
}
var writer = new CircularBufferWriter(buffer);
writer.Write((byte)0x15); // Packet ID
writer.Write(s1);
writer.Write(s2);
ns.Send(ref buffer, 9);
}
}
}