260 lines
8.3 KiB
C#
260 lines
8.3 KiB
C#
/*************************************************************************
|
|
* ModernUO *
|
|
* Copyright 2019-2026 - ModernUO Development Team *
|
|
* Email: hi@modernuo.com *
|
|
* File: HousePackets.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.Runtime.CompilerServices;
|
|
using Server.Compression;
|
|
using Server.Logging;
|
|
using Server.Network;
|
|
|
|
namespace Server.Multis;
|
|
|
|
public static class HousePackets
|
|
{
|
|
private static readonly ILogger logger = LogFactory.GetLogger(typeof(HousePackets));
|
|
|
|
public static void SendBeginHouseCustomization(this NetState ns, Serial house)
|
|
{
|
|
if (ns.CannotSendPackets())
|
|
{
|
|
return;
|
|
}
|
|
|
|
var writer = new SpanWriter(stackalloc byte[17]);
|
|
writer.Write((byte)0xBF); // Packet Id
|
|
writer.Write((ushort)17);
|
|
writer.Write((short)0x20); // Sub-packet
|
|
writer.Write(house);
|
|
writer.Write((byte)0x04); // command
|
|
writer.Write((ushort)0x0000);
|
|
writer.Write((ushort)0xFFFF);
|
|
writer.Write((ushort)0xFFFF);
|
|
writer.Write((byte)0xFF);
|
|
|
|
ns.Send(writer.Span);
|
|
}
|
|
|
|
public static void SendEndHouseCustomization(this NetState ns, Serial house)
|
|
{
|
|
if (ns.CannotSendPackets())
|
|
{
|
|
return;
|
|
}
|
|
|
|
var writer = new SpanWriter(stackalloc byte[17]);
|
|
writer.Write((byte)0xBF); // Packet Id
|
|
writer.Write((ushort)17);
|
|
writer.Write((short)0x20); // Sub-packet
|
|
writer.Write(house);
|
|
writer.Write((byte)0x05); // command
|
|
writer.Write((ushort)0x0000);
|
|
writer.Write((ushort)0xFFFF);
|
|
writer.Write((ushort)0xFFFF);
|
|
writer.Write((byte)0xFF);
|
|
|
|
ns.Send(writer.Span);
|
|
}
|
|
|
|
public static void SendDesignStateGeneral(this NetState ns, Serial house, int revision)
|
|
{
|
|
if (ns.CannotSendPackets())
|
|
{
|
|
return;
|
|
}
|
|
|
|
var writer = new SpanWriter(stackalloc byte[13]);
|
|
writer.Write((byte)0xBF); // Packet Id
|
|
writer.Write((ushort)13);
|
|
writer.Write((short)0x1D); // Sub-packet
|
|
writer.Write(house);
|
|
writer.Write(revision);
|
|
|
|
ns.Send(writer.Span);
|
|
}
|
|
|
|
private const int planeCount = 9;
|
|
private const int maxPlaneLength = 0x400;
|
|
private const int maxPerPlaneOffsetBuffer = 750;
|
|
|
|
public static byte[] CreateHouseDesignStateDetailed(Serial serial, int revision, MultiComponentList components)
|
|
{
|
|
var xMin = components.Min.X;
|
|
var yMin = components.Min.Y;
|
|
var xMax = components.Max.X;
|
|
var yMax = components.Max.Y;
|
|
var width = xMax - xMin + 1;
|
|
var height = yMax - yMin + 1;
|
|
var tiles = components.List;
|
|
|
|
var planeLength = width * height * 2;
|
|
using var planeOffsetWriter = new SpanWriter(0x500, true);
|
|
using var planesWriter = new SpanWriter(planeLength * planeCount);
|
|
|
|
Span<bool> planesUsed = stackalloc bool[9];
|
|
planesUsed.Clear();
|
|
|
|
int index;
|
|
var totalPlaneOffsets = 0;
|
|
var totalPlanes = 0;
|
|
|
|
for (var i = 0; i < tiles.Length; ++i)
|
|
{
|
|
var mte = tiles[i];
|
|
var x = mte.OffsetX - xMin;
|
|
var y = mte.OffsetY - yMin;
|
|
int z = mte.OffsetZ;
|
|
var floor = TileData.ItemTable[mte.ItemId & TileData.MaxItemValue].Height <= 0;
|
|
|
|
var plane = z switch
|
|
{
|
|
0 => 0,
|
|
7 => 1,
|
|
27 => 2,
|
|
47 => 3,
|
|
67 => 4,
|
|
_ => -1
|
|
};
|
|
|
|
if (plane > -1)
|
|
{
|
|
int size;
|
|
if (plane == 0)
|
|
{
|
|
size = height;
|
|
}
|
|
else if (floor)
|
|
{
|
|
size = height - 2;
|
|
x -= 1;
|
|
y -= 1;
|
|
}
|
|
else
|
|
{
|
|
size = height - 1;
|
|
plane += 4;
|
|
}
|
|
|
|
index = (x * size + y) * 2;
|
|
|
|
if (x >= 0 && y >= 0 && y < size && index + 1 < maxPlaneLength)
|
|
{
|
|
var planeUsed = planesUsed[plane];
|
|
var planeWriterIndex = planeLength * plane;
|
|
if (!planeUsed)
|
|
{
|
|
planesUsed[plane] = true;
|
|
totalPlanes++;
|
|
planesWriter.Seek(planeWriterIndex, SeekOrigin.Begin);
|
|
planesWriter.Clear(planeLength);
|
|
}
|
|
|
|
planesWriter.Seek(planeWriterIndex + index, SeekOrigin.Begin);
|
|
planesWriter.Write(mte.ItemId);
|
|
continue;
|
|
}
|
|
}
|
|
|
|
planeOffsetWriter.Write(mte.ItemId);
|
|
planeOffsetWriter.Write((byte)mte.OffsetX);
|
|
planeOffsetWriter.Write((byte)mte.OffsetY);
|
|
planeOffsetWriter.Write((byte)mte.OffsetZ);
|
|
totalPlaneOffsets++;
|
|
}
|
|
|
|
var writer = new SpanWriter(0x10000);
|
|
writer.Write((byte)0xD8); // Packet ID
|
|
writer.Seek(2, SeekOrigin.Current); // Length
|
|
|
|
writer.Write((byte)0x03); // Compression Type
|
|
writer.Write((byte)0x00); // Unknown
|
|
writer.Write(serial);
|
|
writer.Write(revision);
|
|
writer.Write((short)tiles.Length);
|
|
writer.Seek(3, SeekOrigin.Current); // Buffer Length, Plane Count
|
|
|
|
var totalLength = 1; // includes plane count
|
|
|
|
for (var i = 0; i < planeCount; i++)
|
|
{
|
|
if (!planesUsed[i])
|
|
{
|
|
continue;
|
|
}
|
|
|
|
var size = i switch
|
|
{
|
|
0 => planeLength,
|
|
< 5 => (width - 1) * (height - 2) * 2,
|
|
_ => width * (height - 1) * 2
|
|
};
|
|
|
|
var planeWriterIndex = planeLength * i;
|
|
|
|
var source = planesWriter.RawBuffer.Slice(planeWriterIndex, size);
|
|
|
|
writer.Write((byte)(0x20 | i));
|
|
writer.Write((byte)size);
|
|
WritePacked(source, ref writer, out var destLength);
|
|
|
|
totalLength += 4 + destLength;
|
|
}
|
|
|
|
index = 0;
|
|
while (totalPlaneOffsets > 0)
|
|
{
|
|
var count = Math.Min(maxPerPlaneOffsetBuffer, totalPlaneOffsets);
|
|
totalPlaneOffsets -= count;
|
|
var size = count * 5;
|
|
|
|
var source = planeOffsetWriter.RawBuffer.Slice(index * 5, size);
|
|
|
|
writer.Write((byte)(9 + index++));
|
|
writer.Write((byte)size);
|
|
WritePacked(source, ref writer, out var destLength);
|
|
totalLength += 4 + destLength;
|
|
totalPlanes++;
|
|
}
|
|
|
|
writer.Seek(15, SeekOrigin.Begin);
|
|
writer.Write((short)totalLength);
|
|
writer.Write((byte)totalPlanes);
|
|
writer.WritePacketLength();
|
|
|
|
var buffer = writer.Span.ToArray();
|
|
writer.Dispose();
|
|
|
|
return buffer;
|
|
}
|
|
|
|
[MethodImpl(MethodImplOptions.AggressiveInlining)]
|
|
private static void WritePacked(ReadOnlySpan<byte> source, ref SpanWriter writer, out int length)
|
|
{
|
|
var size = source.Length;
|
|
var dest = writer.RawBuffer[(writer.Position + 2)..];
|
|
|
|
length = Deflate.Standard.Pack(dest, source);
|
|
|
|
if (length == 0)
|
|
{
|
|
logger.Warning("House packet compression failed.");
|
|
}
|
|
|
|
writer.Write((byte)length);
|
|
writer.Write((byte)(((size >> 4) & 0xF0) | ((length >> 8) & 0xF)));
|
|
writer.Seek(length, SeekOrigin.Current);
|
|
}
|
|
}
|