erik/acdream
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

feat(D.5.2): PublicUpdatePropertyInt (0x02CE) parser

Browse source 
New standalone parser for the server's live PropertyInt update targeting
a VISIBLE object (carries guid). Wire layout: u32 opcode + u8 sequence +
u32 guid + u32 property + i32 value (17 bytes total).

The sequence byte is parsed-past but not honored (latest-wins; DR-4).
The companion PrivateUpdatePropertyInt (0x02CD) targets the player's own
object (no guid) and is not parsed here.

Three tests: uiEffectsUpdate (round-trip guid/prop/value), wrongOpcode
(returns null), truncated (returns null on 16-byte input).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-06-17 18:29:23 +02:00
parent 8df0b64676
commit 242bc9286d
2 changed files with 80 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

36
tests/AcDream.Core.Net.Tests/Messages/PublicUpdatePropertyIntTests.cs Normal file
View file

@ -0,0 +1,36 @@
using System.Buffers.Binary;
using AcDream.Core.Net.Messages;
namespace AcDream.Core.Net.Tests.Messages;
public sealed class PublicUpdatePropertyIntTests
{
private static byte[] Build(uint guid, uint property, int value, byte seq = 1, uint opcode = 0x02CEu)
{
var b = new byte[17];
BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(0), opcode);
b[4] = seq;
BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(5), guid);
BinaryPrimitives.WriteUInt32LittleEndian(b.AsSpan(9), property);
BinaryPrimitives.WriteInt32LittleEndian(b.AsSpan(13), value);
return b;
}
[Fact]
public void TryParse_uiEffectsUpdate_returnsGuidPropValue()
{
var p = PublicUpdatePropertyInt.TryParse(Build(0x50000001u, property: 18u, value: 0x9));
Assert.NotNull(p);
Assert.Equal(0x50000001u, p!.Value.Guid);
Assert.Equal(18u, p.Value.Property);
Assert.Equal(0x9, p.Value.Value);
}
[Fact]
public void TryParse_wrongOpcode_returnsNull()
=> Assert.Null(PublicUpdatePropertyInt.TryParse(Build(1, 18, 1, opcode: 0x02CDu)));
[Fact]
public void TryParse_truncated_returnsNull()
=> Assert.Null(PublicUpdatePropertyInt.TryParse(new byte[16]));
}