Roblox-File-Format/BinaryFormat/Chunks/INST.cs
CloneTrooper1019 de8df15d3f Large scale refactor to add class support!
Instance classes are now strongly typed with real property fields that
are derived from the JSON API Dump! This required a lot of reworking
across the board:

- Classes and Enums are auto-generated in the 'Generated' folder now.
This is done using a custom built-in plugin, which can be found in
the Plugins folder of this project.
- Property objects are now tied to .NET's reflection system. Reading
and writing from them will try to redirect into a field of the
Instance they are bound to.
- Property types that were loosely defined now have proper data types
(such as Color3uint8, Content, ProtectedString, SharedString, etc)
- Fixed an error with the CFrame directional vectors.
- The binary PRNT chunk now writes instances in child->parent order.
- Enums are now generated correctly, with up-to-date values.
- INST chunks are now referred to as 'Classes' instead of 'Types'.
- Unary operator added to Vector2 and Vector3.
- CollectionService tags can now be manipulated per-instance using
the Instance.Tags member.
- The Instance.Archivable property now works correctly.
- XML files now save/load metadata correctly.
- Cleaned up the property tokens directory.

I probably missed a few things, but that's a general overview of
everything that changed.
2019-06-30 17:01:19 -05:00

90 lines
2.6 KiB
C#

using System;
using System.Collections.Generic;
namespace RobloxFiles.BinaryFormat.Chunks
{
public class INST : IBinaryFileChunk
{
public int ClassIndex { get; internal set; }
public string ClassName { get; internal set; }
public bool IsService { get; internal set; }
public List<bool> RootedServices { get; internal set; }
public int NumInstances { get; internal set; }
public List<int> InstanceIds { get; internal set; }
public override string ToString() => ClassName;
public void LoadFromReader(BinaryRobloxFileReader reader)
{
BinaryRobloxFile file = reader.File;
ClassIndex = reader.ReadInt32();
ClassName = reader.ReadString();
IsService = reader.ReadBoolean();
NumInstances = reader.ReadInt32();
InstanceIds = reader.ReadInstanceIds(NumInstances);
if (IsService)
{
RootedServices = new List<bool>();
for (int i = 0; i < NumInstances; i++)
{
bool isRooted = reader.ReadBoolean();
RootedServices.Add(isRooted);
}
}
for (int i = 0; i < NumInstances; i++)
{
int instId = InstanceIds[i];
Type instType = Type.GetType($"RobloxFiles.{ClassName}") ?? typeof(Instance);
var inst = Activator.CreateInstance(instType) as Instance;
inst.Referent = instId.ToString();
inst.IsService = IsService;
if (IsService)
{
bool isRooted = RootedServices[i];
inst.Parent = (isRooted ? file : null);
}
file.Instances[instId] = inst;
}
file.Classes[ClassIndex] = this;
}
public BinaryRobloxFileChunk SaveAsChunk(BinaryRobloxFileWriter writer)
{
writer.StartWritingChunk(this);
writer.Write(ClassIndex);
writer.WriteString(ClassName);
writer.Write(IsService);
writer.Write(NumInstances);
writer.WriteInstanceIds(InstanceIds);
if (IsService)
{
BinaryRobloxFile file = writer.File;
foreach (int instId in InstanceIds)
{
Instance service = file.Instances[instId];
bool isRooted = (service.Parent == file);
writer.Write(isRooted);
}
}
return writer.FinishWritingChunk();
}
}
}