10a69bf754
## Breaking Changes
Incoming packet registration signature has changed to:
```cs
delegate* void OnReceiveCallback(NetState state, SpanReader reader, int packetLength);
IncomingPackets.Register(int packetID, int length, bool ingame, OnReceiveCallback onReceive);
```
For example, an incoming packet handler signature would now look like this:
```cs
public static void SomeIncomingPacket(NetState state, SpanReader reader, int packetLength)
{
// Parse the data
}
```
## Summary
Updates the network Pipe class to use a mirrored memory technique. This technique involves mapping the same physical memory to two contiguous virtual memory spaces so the byte buffer appears duplicated. This allows writing to a double-sized array to wrap around without the need for the `CircularBuffer` classes.
In practice this allows us to use `Span<byte>` as if the buffer was a regular array.
### Bug Fixes
- [X] Fixes bad fixed length string parsing
134 lines
4.2 KiB
C#
134 lines
4.2 KiB
C#
/*************************************************************************
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* ModernUO *
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* Copyright 2019-2023 - ModernUO Development Team *
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* Email: hi@modernuo.com *
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* File: IncomingItemPackets.cs *
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* *
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* This program is free software: you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation, either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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*************************************************************************/
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using System.Buffers;
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using System.Collections.Generic;
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using System.IO;
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using Server.Items;
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namespace Server.Network;
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public static class IncomingItemPackets
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{
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public static unsafe void Configure()
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{
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IncomingPackets.Register(0x07, 7, true, &LiftReq);
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IncomingPackets.Register(new ContainerGridPacketHandler(0x08, 14, true, &DropReq));
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IncomingPackets.Register(0x13, 10, true, &EquipReq);
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IncomingPackets.Register(0xEC, 0, false, &EquipMacro);
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IncomingPackets.Register(0xED, 0, false, &UnequipMacro);
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}
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public static void LiftReq(NetState state, SpanReader reader, int packetLength)
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{
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var serial = (Serial)reader.ReadUInt32();
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int amount = reader.ReadUInt16();
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var item = World.FindItem(serial);
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state.Mobile.Lift(item, amount, out _, out _);
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}
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public static void EquipReq(NetState state, SpanReader reader, int packetLength)
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{
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var from = state.Mobile;
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var item = from.Holding;
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var valid = item != null && item.HeldBy == from && item.Map == Map.Internal;
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from.Holding = null;
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if (!valid)
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{
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return;
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}
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reader.Seek(5, SeekOrigin.Current);
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var to = World.FindMobile((Serial)reader.ReadUInt32()) ?? from;
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if (!to.AllowEquipFrom(from) || !to.EquipItem(item))
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{
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item.Bounce(from);
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}
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item.ClearBounce();
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}
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public static void DropReq(NetState state, SpanReader reader, int packetLength)
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{
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reader.ReadInt32(); // serial, ignored
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int x = reader.ReadInt16();
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int y = reader.ReadInt16();
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int z = reader.ReadSByte();
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if (state.ContainerGridLines)
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{
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reader.ReadByte(); // Grid Location?
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}
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Serial dest = (Serial)reader.ReadUInt32();
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var loc = new Point3D(x, y, z);
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var from = state.Mobile;
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if (dest.IsMobile)
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{
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from.Drop(World.FindMobile(dest), loc);
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}
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else if (dest.IsItem)
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{
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var item = World.FindItem(dest);
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if (item is BaseMulti multi && multi.AllowsRelativeDrop)
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{
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loc.X += multi.X;
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loc.Y += multi.Y;
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from.Drop(loc);
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}
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else
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{
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from.Drop(item, loc);
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}
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}
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else
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{
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from.Drop(loc);
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}
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}
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public static void EquipMacro(NetState state, SpanReader reader, int packetLength)
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{
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int count = reader.ReadByte();
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var serialList = new List<Serial>(count);
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for (var i = 0; i < count; ++i)
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{
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serialList.Add((Serial)reader.ReadUInt32());
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}
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EventSink.InvokeEquipMacro(state.Mobile, serialList);
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}
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public static void UnequipMacro(NetState state, SpanReader reader, int packetLength)
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{
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int count = reader.ReadByte();
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var layers = new List<Layer>(count);
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for (var i = 0; i < count; ++i)
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{
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layers.Add((Layer)reader.ReadUInt16());
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}
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EventSink.InvokeUnequipMacro(state.Mobile, layers);
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}
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}
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