Dictionary <int, extended_meta> list_extended; //<mem_off,extended_meta obj>,a dictionary containing the extended meta by their memory address to prevent redundancy.
/// <summary>
/// use to read meta data from a map file
/// </summary>
/// <param name="datum_index">the datum index of the tag</param>
/// <param name="sr">the path of the tag.eg: characters/elite/elite_mp</param>
/// <param name="sr">the stream object</param>
public meta(int datum_index, string path, StreamReader sr)
{
//initialise some stuff
this.datum_index = datum_index;
this.path = path;
map_stream = sr;
//some meta reading prologue
int table_off = DATA_READ.ReadINT_LE(0x10, map_stream);
int table_size = DATA_READ.ReadINT_LE(0x14, map_stream);
int table_start = table_off + 0xC * DATA_READ.ReadINT_LE(table_off + 4, map_stream) + 0x20;
int scnr_off = table_off + table_size;
int scnr_memaddr = DATA_READ.ReadINT_LE(table_start + 0x8, map_stream);//scnr tag index is 0x0(mostly)
//steps concerned with the specified meta
type = DATA_READ.ReadTAG_TYPE(table_start + (0xFFFF & datum_index) * 0x10, map_stream);
mem_off = DATA_READ.ReadINT_LE(table_start + ((0xFFFF & datum_index) * 0x10) + 0x8, map_stream);
size = DATA_READ.ReadINT_LE(table_start + ((0xFFFF & datum_index) * 0x10) + 0xC, map_stream);
//read the meta from the map
data = new byte[size];
if (!DATA_READ.Check_shared(sr))
{
//normal map
map_stream.BaseStream.Position = scnr_off + (mem_off - scnr_memaddr);
}
else
{
//shared map
map_stream.BaseStream.Position = scnr_off + (mem_off - 0x3c000);
//0x3c000 is a hardcoded value in blam engine
}
map_stream.BaseStream.Read(data, 0, size);
//read and store the plugin structure
plugin = DATA_READ.Get_Tag_stucture_from_plugin(type);
//lets initialise some lists and dictionaries
ref_data = new List <int>();
ref_tags = new List <int>();
ref_reflexive = new List <int>();
ref_stringID = new List <int>();
ref_extended = new Dictionary <int, int>();
list_extended = new Dictionary <int, extended_meta>();
ref_WCtags = new List <int>();
//now lets search for all kinds of stuff
List_deps(0x0, plugin);
}
Dictionary <int, extended_meta> list_extended; //<mem_off,extended_meta obj>,a dictionary containing the extended meta by their memory address to prevent redundancy.
/// <summary>
/// extended meta is similar to the meta
/// </summary>
/// <param name="mem_address"></param>
/// <param name="size">the total size of the extended meta containg all occurences</param>
/// <param name="count"></param>
/// <param name="plugin"></param>
/// <param name="sr"></param>
public extended_meta(int mem_address, int size, int count, plugins_field plugin, StreamReader sr)
{
this.mem_off = mem_address;
this.size = size;
this.plugin = plugin;
this.map_stream = sr;
this.entry_size = size / count;
//some meta reading prologue
int table_off = DATA_READ.ReadINT_LE(0x10, map_stream);
int table_size = DATA_READ.ReadINT_LE(0x14, map_stream);
int table_start = table_off + 0xC * DATA_READ.ReadINT_LE(table_off + 4, map_stream) + 0x20;
int scnr_off = table_off + table_size;
int scnr_memaddr = DATA_READ.ReadINT_LE(table_start + 0x8, map_stream);//scnr tag index is 0x0(mostly)
//read the extended_meta from the map
data = new byte[this.size];
if (!DATA_READ.Check_shared(sr))
{
//normal map
map_stream.BaseStream.Position = scnr_off + (mem_off - scnr_memaddr);
}
else
{
//shared map
map_stream.BaseStream.Position = scnr_off + (mem_off - 0x3c000);
//0x3c000 is a hardcoded value in blam engine
}
map_stream.BaseStream.Read(data, 0, this.size);
//lets initialise some lists and dictionaries
ref_data = new List <int>();
ref_tags = new List <int>();
ref_stringID = new List <int>();
ref_reflexive = new List <int>();
ref_extended = new Dictionary <int, int>();
list_extended = new Dictionary <int, extended_meta>();
ref_WCtags = new List <int>();
//we we have loop through the extended meta stuff
for (int i = 0; i < count; i++)
{
List_deps(i * entry_size, plugin);
}
}
/// <summary>
/// used to read meta data from a meta file along with ability to modify mem_off
/// </summary>
/// <param name="meta"></param>
/// <param name="type"></param>
/// <param name="size"></param>
/// <param name="path"></param>
/// <param name="mem_off"></param>
public meta(byte[] meta, string type, int size, string path, int mem_off)
{
data = meta;
this.type = type;
this.size = size;
this.path = path;
this.mem_off = mem_off;//this is for awkward cases when i rebase the meta to some other shit
//lets initialise some lists and dictionaries
ref_data = new List <int>();
ref_tags = new List <int>();
ref_reflexive = new List <int>();
ref_stringID = new List <int>();
ref_WCtags = new List <int>();
//while extracting the meta ,i fix all the extended meta stuff so we dont need it now
plugin = DATA_READ.Get_Tag_stucture_from_plugin(type);
List_deps(0x0, plugin);
}
/// <summary>
/// used to read meta data from a meta file
/// </summary>
/// <param name="meta"></param>
/// <param name="type"></param>
/// <param name="size"></param>
/// <param name="path"></param>
public meta(byte[] meta, string type, int size, string path)
{
data = meta;
this.type = type;
this.size = size;
this.path = path;
this.mem_off = 0x0;//i usually rebase meta to 0x0 when extracting
//lets initialise some lists and dictionaries
ref_data = new List <int>();
ref_tags = new List <int>();
ref_reflexive = new List <int>();
ref_stringID = new List <int>();
ref_WCtags = new List <int>();
//while extracting the meta ,i fix all the extended meta stuff so we dont need it now
//plugin
plugin = DATA_READ.Get_Tag_stucture_from_plugin(type);
List_deps(0x0, plugin);
}
public void Add_field(plugins_field field)
{
reflexive.Add(field);
}
/// <summary>
/// a function to fill in all the Lists and Dictionaries
/// </summary>
/// <param name="off">the starting offset where the stuff is being read</param>
/// <param name="fields">the concerned field(s) in that section</param>
void List_deps(int off, plugins_field fields)
{
List <int> temp = fields.Get_tag_ref_list();
//first we look for tag_refs and add them
foreach (int i in temp)
{
int Toff = off + i;//it contains type
//we add this off to the list if it doesnt contain the off already
if (!ref_tags.Contains(Toff))
{
ref_tags.Add(Toff);
}
}
//then we look for data_refs and add them
temp = fields.Get_data_ref_list();
foreach (int i in temp)
{
int Toff = off + i;
//we add this off to the list if it doesnt contain the off already
if (!ref_data.Contains(Toff))
{
ref_data.Add(Toff);
}
}
//then we look for stringId refs and add them
temp = fields.Get_stringID_ref_list();
foreach (int i in temp)
{
int Toff = off + i;
//we add this off to the list if it doesnt contain the off already
if (!ref_stringID.Contains(Toff))
{
ref_stringID.Add(Toff);
}
}
//now we look into reflexive fields and extended meta and add them accordingly
List <plugins_field> Ptemp = fields.Get_reflexive_list();
foreach (plugins_field i_Pfield in Ptemp)
{
int Toff = off + i_Pfield.Get_offset();//field table off contains count
int count = DATA_READ.ReadINT_LE(Toff, data);
int field_memaddr = DATA_READ.ReadINT_LE(Toff + 4, data);
int entry_size = i_Pfield.Get_entry_size(); //entry_size
int field_off = field_memaddr - mem_off; //its the offset of the field from the starting of the meta data
if (count > 0)
{
//now we check whether its inside meta or a case of extended meta
if ((field_memaddr >= mem_off) && (field_off < size))
{
//inside meta
//we add this off which contains reflexive table to the list if it doesnt contain the off already
if (!ref_reflexive.Contains(Toff))
{
ref_reflexive.Add(Toff);
//after adding it to the list we look into them,recursively
for (int j = 0; j < count; j++)
{
List_deps(field_off + j * entry_size, i_Pfield);
}
}
}
else
{
//extended meta(IN SUCCESSFULL RUN ,EXTENDED META ONLY APPEARS ONLY WHEN WE READ FROM A MAP)
//but first we check whether we are reading meta from a map,or an exracted file,its rather easy
if (list_extended != null)
{
//we add this off to the list if it doesnt contain the off already
if (!ref_extended.ContainsKey(Toff))
{
ref_extended.Add(Toff, field_memaddr);
//now we create and add extended_meta to the list if it isnt already there
if (!list_extended.ContainsKey(field_memaddr))
{
extended_meta temp_extend = new extended_meta(field_memaddr, entry_size * count, count, i_Pfield, map_stream);
list_extended.Add(field_memaddr, temp_extend);
}
//we dont need to look into them as extended meta does it for us
}
}
else
{
//the program will only reach here when u try to use an extended meta on meta file.
//any meta which i extract from a map file have all issues of extended_meta fixed.
throw new Exception("Meta file " + path + "." + type + " is broken.\nEither debug the extraction proceedure or fix the meta file");
}
}
}
}
//now we go for withClass attribute tagRefs,they are a bit different as they only contain the datum index of the refered tag
temp = fields.Get_WCtag_ref_list();
foreach (int i in temp)
{
int Toff = off + i;
//we add this off to the list if it doesnt contain the off already
if (!ref_WCtags.Contains(Toff))
{
ref_WCtags.Add(Toff);
}
}
}
/// <summary>
/// a function to fill in all the Lists and Dictionaries
/// </summary>
/// <param name="off">the starting offset where the stuff is being read</param>
/// <param name="fields">the concerned field(s) in that section</param>
void List_deps(int off, plugins_field fields)
{
List <int> temp = fields.Get_tag_ref_list();
//first we look for tag_refs and add them
foreach (int i in temp)
{
int Toff = off + i;//it contains type
//we add this off to the list if it doesnt contain the off already
if (!ref_tags.Contains(Toff))
{
ref_tags.Add(Toff);
}
}
//then we look for data_refs and add them
temp = fields.Get_data_ref_list();
foreach (int i in temp)
{
int Toff = off + i;
//we add this off to the list if it doesnt contain the off already
if (!ref_data.Contains(Toff))
{
ref_data.Add(Toff);
}
}
//then we look for stringId refs and add them
temp = fields.Get_stringID_ref_list();
foreach (int i in temp)
{
int Toff = off + i;
//we add this off to the list if it doesnt contain the off already
if (!ref_stringID.Contains(Toff))
{
ref_stringID.Add(Toff);
}
}
//now we look into reflexive fields and extended meta and add them accordingly
List <plugins_field> Ptemp = fields.Get_reflexive_list();
foreach (plugins_field i_Pfield in Ptemp)
{
int Toff = off + i_Pfield.Get_offset();//field table off contains count
int count = DATA_READ.ReadINT_LE(Toff, data);
int field_memaddr = DATA_READ.ReadINT_LE(Toff + 4, data);
int entry_size = i_Pfield.Get_entry_size(); //entry_size
int field_off = field_memaddr - mem_off; //its the offset of the field from the starting of the meta data
if (count > 0)
{
//now we check whether its inside meta or a case of extended meta
if ((field_memaddr >= mem_off) && (field_off < size))
{
//inside meta
//we add this off which contains reflexive table to the list if it doesnt contain the off already
if (!ref_reflexive.Contains(Toff))
{
ref_reflexive.Add(Toff);
//after adding it to the list we look into them,recursively
for (int j = 0; j < count; j++)
{
List_deps(field_off + j * entry_size, i_Pfield);
}
}
}
else
{
//extended meta
//we add this off to the list if it doesnt contain the off already
if (!ref_extended.ContainsKey(Toff))
{
ref_extended.Add(Toff, field_memaddr);
//now we create and add extended_meta to the list if it isnt already there
if (!list_extended.ContainsKey(field_memaddr))
{
extended_meta temp_extend = new extended_meta(field_memaddr, entry_size * count, count, i_Pfield, map_stream);
list_extended.Add(field_memaddr, temp_extend);
}
//we dont need to look into them as extended meta does it for us
}
}
}
}
//now we go for withClass attribute tagRefs,they are a bit different as they only contain the datum index of the refered tag
temp = fields.Get_WCtag_ref_list();
foreach (int i in temp)
{
int Toff = off + i;
//we add this off to the list if it doesnt contain the off already
if (!ref_WCtags.Contains(Toff))
{
ref_WCtags.Add(Toff);
}
}
}
