public int GetSize(Meta_GTA5_pc meta, int typeKey)
{
switch (typeKey)
{
case 0x00000007:
return(8);
case 0x00000010:
return(1);
case 0x00000011:
return(1);
case 0x00000013:
return(2);
case 0x00000015:
return(4);
case 0x00000021:
return(4);
case 0x00000033:
return(16);
case 0x0000004A:
return(4);
default:
return((int)GetInfo(meta, typeKey).StructureLength);
}
}
private void MetaInitialize()
{
meta = new Meta_GTA5_pc();
meta.VFT = 0x405bc808;
meta.Unknown_4h = 1;
meta.Unknown_10h = 0x50524430;
meta.Unknown_14h = 0x0079;
}
public static EnumInfo_GTA5_pc GetEnumInfo(Meta_GTA5_pc meta, int structureKey)
{
EnumInfo_GTA5_pc info = null;
foreach (var x in meta.EnumInfos)
{
if (x.EnumNameHash == structureKey)
{
info = x;
}
}
return(info);
}
public static StructureInfo_GTA5_pc GetStructureInfo(Meta_GTA5_pc meta, int structureKey)
{
StructureInfo_GTA5_pc info = null;
foreach (var x in meta.StructureInfos)
{
if (x.StructureNameHash == structureKey)
{
info = x;
}
}
return(info);
}
public MetaStructure(Meta_GTA5_pc meta, StructureInfo_GTA5_pc info)
{
this.meta = meta;
this.info = info;
}
public IMetaValue Parse(Meta_GTA5_pc meta)
{
var blockKeys = new List <int>();
var blocks = new List <List <IMetaValue> >();
//////////////////////////////////////////////////
// first step: flat conversion
//////////////////////////////////////////////////
foreach (var block in meta.DataBlocks)
{
blockKeys.Add(block.StructureNameHash);
switch (block.StructureNameHash)
{
case 0x00000007:
blocks.Add(ReadBlock(block, () => new MetaGeneric())); // has no special type declaration in .meta -> pointer
break;
case 0x00000010:
blocks.Add(ReadBlock(block, () => new MetaByte_A())); // char_array
break;
case 0x00000011:
blocks.Add(ReadBlock(block, () => new MetaByte_B())); // has no special type declaration in .meta -> string
break;
case 0x00000013:
blocks.Add(ReadBlock(block, () => new MetaInt16_B())); // probably short_array
break;
case 0x00000015:
blocks.Add(ReadBlock(block, () => new MetaInt32_B())); // int_array
break;
case 0x00000021:
blocks.Add(ReadBlock(block, () => new MetaFloat())); // float_array
break;
case 0x00000033:
blocks.Add(ReadBlock(block, () => new MetaFloat4_XYZ())); // vector3_array
break;
case 0x0000004A:
blocks.Add(ReadBlock(block, () => new MetaInt32_Hash())); // probably list of <Item>HASH_OF_SOME_NAME</Item>
break;
default:
blocks.Add(ReadBlock(block, () => new MetaStructure(meta, GetInfo(meta, block.StructureNameHash)))); // has no special type declaration in .meta -> structure
break;
}
}
//////////////////////////////////////////////////
// second step: map references
//////////////////////////////////////////////////
var referenced = new HashSet <IMetaValue>();
var stack = new Stack <IMetaValue>();
foreach (var block in blocks)
{
foreach (var entry in block)
{
stack.Push(entry);
}
}
while (stack.Count > 0)
{
var entry = stack.Pop();
if (entry is MetaArray)
{
var arrayEntry = entry as MetaArray;
var realBlockIndex = arrayEntry.BlockIndex - 1;
if (realBlockIndex >= 0)
{
arrayEntry.Entries = new List <IMetaValue>();
var realEntryIndex = arrayEntry.Offset / GetSize(meta, blockKeys[realBlockIndex]);
for (int i = 0; i < arrayEntry.NumberOfEntries; i++)
{
var x = blocks[realBlockIndex][realEntryIndex + i];
arrayEntry.Entries.Add(x);
referenced.Add(x);
}
}
}
if (entry is MetaCharPointer)
{
var charPointerEntry = entry as MetaCharPointer;
var realBlockIndex = charPointerEntry.DataBlockIndex - 1;
if (realBlockIndex >= 0)
{
string value = "";
for (int i = 0; i < charPointerEntry.StringLength; i++)
{
var x = (MetaByte_A)blocks[realBlockIndex][i + charPointerEntry.DataOffset];
value += (char)x.Value;
}
charPointerEntry.Value = value;
}
}
if (entry is MetaDataBlockPointer)
{
var dataPointerEntry = entry as MetaDataBlockPointer;
var realBlockIndex = dataPointerEntry.BlockIndex - 1;
if (realBlockIndex >= 0)
{
byte[] b = ToBytes(meta.DataBlocks[realBlockIndex].Data);
dataPointerEntry.Data = b;
}
}
if (entry is MetaGeneric)
{
var genericEntry = entry as MetaGeneric;
var realBlockIndex = genericEntry.BlockIndex - 1;
var realEntryIndex = genericEntry.Offset * 16 / GetSize(meta, blockKeys[realBlockIndex]);
var x = blocks[realBlockIndex][realEntryIndex];
genericEntry.Value = x;
referenced.Add(x);
}
if (entry is MetaStructure)
{
var structureEntry = entry as MetaStructure;
foreach (var x in structureEntry.Values)
{
stack.Push(x.Value);
}
}
}
//////////////////////////////////////////////////
// third step: find root
//////////////////////////////////////////////////
var rootSet = new HashSet <IMetaValue>();
foreach (var x in blocks)
{
foreach (var y in x)
{
if (y is MetaStructure && !referenced.Contains(y))
{
rootSet.Add(y);
}
}
}
var res = rootSet.First();
if (res != blocks[(int)meta.RootBlockIndex - 1][0])
{
throw new System.Exception("wrong root block index");
}
return(res);
}
