ModernUO/Projects/Server/Network/Packets/IncomingTargetingPackets.cs
Kamron Batman ea5d09a7d7
fix(core): Fixes map issues at New Haven (#509)
- [X] Fixes map issues at New Haven by turning off static diffs
- [X] Some code cleanup and reformatting of tile matrix, tile matrix patch, and tile data
- [X] Adds NetState.Flush for generating spawners so it doesn't feel like the server is frozen
- [X] Reverts NativeReader changes from a while back.
- [X] Adds more string reading for BufferReader.


Notes:
BufferReader is still `little endian` compared to `SpanReader` which is `big endian` (for packets). To that end, the RunUO deserialization `ReadString()` was made obsolete since it is ambiguous, and contains extra fields other than simply reading a string. Furthermore, we shouldn't be using UTF8 (for now) since it is slow.
2021-02-14 16:06:49 -08:00

146 lines
5.2 KiB
C#

/*************************************************************************
* ModernUO *
* Copyright 2019-2020 - 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;
using Server.Diagnostics;
using Server.Targeting;
namespace Server.Network
{
public static class IncomingTargetingPackets
{
public static void Configure()
{
IncomingPackets.Register(0x6C, 19, true, TargetResponse);
}
public static void TargetResponse(NetState state, CircularBufferReader reader, ref int packetLength)
{
int type = reader.ReadByte();
var targetID = reader.ReadInt32();
int flags = reader.ReadByte();
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)
{
// Sanity, prevent fake target
}
else
{
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;
}
}
for (var i = 0; !valid && i < tiles.Length; ++i)
{
if (tiles[i].Z == z && tiles[i].ID == graphic)
{
valid = true;
}
}
if (!valid)
{
t.Cancel(from, TargetCancelType.Canceled);
return;
}
else
{
toTarget = new StaticTarget(new Point3D(x, y, z), graphic);
}
}
}
}
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();
}
}
}
}