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Revision as of 05:21, 13 June 2009
Key Table and Resource References
Many resources in Sims 3 packages refer to other resources. Resources are identified by a 16 byte value made up of:
DWORD Resource type // T DWORD Resource group // G QWORD Instance // I
These are known as the resource key. Generally they appear in the order shown above and the canonical reference format you may see is "TGI" or a string of numbers like 00000000-00000000-0000000000000000.
Where one resource contains many references to others, there is frequently a table listing the TGI values. Within the resource, the location of this table is given by a value known as the key table:
DWORD TGI_offset // from after this DWORD DWORD TGI_size // 4 + tgiCount * 16
At TGI_offset will be the list of resource references.
DWORD tgiCount --repetition tgiCount: DWORD TID DWORD GID QWORD I64
Lists of resource references in other formats (TIG, ITG, etc) do occur but these are not key tables per se.
