GARbro-mirror/ArcFormats/FC01/ArcSCXA.cs

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C#
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using System.Collections.Generic;
using System.ComponentModel.Composition;
namespace GameRes.Formats.FC01
{
[Export(typeof(ArchiveFormat))]
public class SCXAOpener : ArchiveFormat
{
public override string Tag { get { return "ARC/SCXA Pia Carrot e Youkoso 4 Xbox360"; } }
public override string Description { get { return "Pia Carrot e Youkoso 4 Xbox360 resource archive"; } }
public override uint Signature { get { return 0x41584353; } } // 'SCXA'
public override bool IsHierarchic { get { return false; } }
public override bool CanWrite { get { return false; } }
public override ArcFile TryOpen(ArcView file)
{
uint datastart = file.View.ReadUInt32(4);
int count = file.View.ReadInt32(8);
if (!IsSaneCount(count))
return null;
uint tnstart = (uint)count * 4 + 12;
var dir = new List<Entry>(count);
uint index_offset;
for (int i = 0; i < count; ++i)
{
uint namestart = file.View.ReadUInt32(i * 4 + 12);
uint fstart = file.View.ReadUInt32(tnstart + namestart);
uint flength = file.View.ReadUInt32(tnstart + namestart + 4);
index_offset = tnstart + namestart + 8;
byte c;
List<byte> namebyte = new List<byte>();
while (true)
{
c = file.View.ReadByte((long)index_offset);
if (c == 0 | index_offset > datastart) break;
namebyte.Add(c);
index_offset++;
}
var name = System.Text.Encoding.ASCII.GetString(namebyte.ToArray());
var entry = Create<Entry>(name);
entry.Offset = datastart + fstart;
entry.Size = flength;
if (!entry.CheckPlacement(file.MaxOffset))
return null;
dir.Add(entry);
}
return new ArcFile(file, this, dir);
}
}
}