Roblox-File-Format/BinaryFormat/Chunks/PRNT.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

70 lines
2.0 KiB
C#

using System.Collections.Generic;
namespace RobloxFiles.BinaryFormat.Chunks
{
public class PRNT : IBinaryFileChunk
{
public byte Format { get; private set; }
public int NumRelations { get; private set; }
public List<int> ChildrenIds { get; private set; }
public List<int> ParentIds { get; private set; }
public void LoadFromReader(BinaryRobloxFileReader reader)
{
BinaryRobloxFile file = reader.File;
Format = reader.ReadByte();
NumRelations = reader.ReadInt32();
ChildrenIds = reader.ReadInstanceIds(NumRelations);
ParentIds = reader.ReadInstanceIds(NumRelations);
for (int i = 0; i < NumRelations; i++)
{
int childId = ChildrenIds[i];
int parentId = ParentIds[i];
Instance child = file.Instances[childId];
child.Parent = (parentId >= 0 ? file.Instances[parentId] : file);
child.ParentLocked = child.IsService;
}
}
public BinaryRobloxFileChunk SaveAsChunk(BinaryRobloxFileWriter writer)
{
writer.StartWritingChunk(this);
Format = 0;
NumRelations = 0;
ChildrenIds = new List<int>();
ParentIds = new List<int>();
foreach (Instance inst in writer.PostInstances)
{
Instance parent = inst.Parent;
int childId = int.Parse(inst.Referent);
int parentId = -1;
if (parent != null)
parentId = int.Parse(parent.Referent);
ChildrenIds.Add(childId);
ParentIds.Add(parentId);
NumRelations++;
}
writer.Write(Format);
writer.Write(NumRelations);
writer.WriteInstanceIds(ChildrenIds);
writer.WriteInstanceIds(ParentIds);
return writer.FinishWritingChunk();
}
}
}