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
145 lines
4.8 KiB
C#
145 lines
4.8 KiB
C#
/*************************************************************************
|
|
* ModernUO *
|
|
* Copyright 2019-2023 - ModernUO Development Team *
|
|
* Email: hi@modernuo.com *
|
|
* File: IncomingTargetingPackets.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.Buffers;
|
|
using Server.Diagnostics;
|
|
using Server.Targeting;
|
|
|
|
namespace Server.Network;
|
|
|
|
public static class IncomingTargetingPackets
|
|
{
|
|
public static unsafe void Configure()
|
|
{
|
|
IncomingPackets.Register(0x6C, 19, true, &TargetResponse);
|
|
}
|
|
|
|
public static void TargetResponse(NetState state, SpanReader reader, int packetLength)
|
|
{
|
|
int type = reader.ReadByte();
|
|
var targetID = reader.ReadInt32();
|
|
int flags = reader.ReadByte();
|
|
var serial = (Serial)reader.ReadUInt32();
|
|
int x = reader.ReadInt16();
|
|
int y = reader.ReadInt16();
|
|
reader.ReadByte();
|
|
int z = reader.ReadSByte();
|
|
int graphic = reader.ReadUInt16();
|
|
|
|
if (targetID == unchecked((int)0xDEADBEEF))
|
|
{
|
|
return;
|
|
}
|
|
|
|
var from = state.Mobile;
|
|
|
|
var t = from.Target;
|
|
|
|
if (t == null)
|
|
{
|
|
return;
|
|
}
|
|
|
|
var prof = TargetProfile.Acquire(t.GetType());
|
|
prof?.Start();
|
|
|
|
try
|
|
{
|
|
if (x == -1 && y == -1 && !serial.IsValid)
|
|
{
|
|
// User pressed escape
|
|
t.Cancel(from, TargetCancelType.Canceled);
|
|
}
|
|
else if (t.TargetID == targetID)
|
|
{
|
|
object toTarget;
|
|
|
|
if (type == 1)
|
|
{
|
|
if (graphic == 0)
|
|
{
|
|
toTarget = new LandTarget(new Point3D(x, y, z), from.Map);
|
|
}
|
|
else
|
|
{
|
|
var map = from.Map;
|
|
|
|
if (map == null || map == Map.Internal)
|
|
{
|
|
t.Cancel(from, TargetCancelType.Canceled);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
var tiles = map.Tiles.GetStaticTiles(x, y, !t.DisallowMultis);
|
|
|
|
var valid = false;
|
|
|
|
if (state.HighSeas)
|
|
{
|
|
var id = TileData.ItemTable[graphic & TileData.MaxItemValue];
|
|
if (id.Surface)
|
|
{
|
|
z -= id.Height;
|
|
}
|
|
}
|
|
|
|
int hue = 0;
|
|
|
|
for (var i = 0; !valid && i < tiles.Length; ++i)
|
|
{
|
|
var tile = tiles[i];
|
|
if (tile.Z == z && tile.ID == graphic)
|
|
{
|
|
valid = true;
|
|
hue = tile.Hue;
|
|
}
|
|
}
|
|
|
|
if (!valid)
|
|
{
|
|
t.Cancel(from, TargetCancelType.Canceled);
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
toTarget = new StaticTarget(new Point3D(x, y, z), graphic, hue);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (serial.IsMobile)
|
|
{
|
|
toTarget = World.FindMobile(serial);
|
|
}
|
|
else if (serial.IsItem)
|
|
{
|
|
toTarget = World.FindItem(serial);
|
|
}
|
|
else
|
|
{
|
|
t.Cancel(from, TargetCancelType.Canceled);
|
|
return;
|
|
}
|
|
|
|
t.Invoke(from, toTarget);
|
|
}
|
|
}
|
|
finally
|
|
{
|
|
prof?.Finish();
|
|
}
|
|
}
|
|
}
|