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update some item-related notes

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This commit is contained in:
Martin Michelsen
2025-02-20 21:29:45 -08:00
parent 9001af38cd
commit 2d42d1ce07
7 changed files with 30 additions and 14 deletions
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src/SaveFileFormats.hh
+11 -6
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@@ -508,9 +508,9 @@ struct PSOGCNTECharacterFileCharacter {
struct PSOGCCharacterFile {
/* 00000 */ be_uint32_t checksum = 0;
struct Character {
// This structure is internally split into two by the game. The offsets here
// are relative to the start of this structure (first column), and relative
// to the start of the second internal structure (second column).
// This structure is internally split into two by the game. The offsets
// here are relative to the start of this structure (first column), and
// relative to the start of the second internal structure (second column).
/* 0000:---- */ PlayerInventoryBE inventory;
/* 034C:---- */ PlayerDispDataDCPCV3BE disp;
// Known bits in the validation_flags field:
@@ -520,8 +520,8 @@ struct PSOGCCharacterFile {
// 00000004: Character has EXP out of range for their current level
// 00000008: Character has one or more stats out of range (< 0 or > max)
// 00000010: Character has ever possessed a hacked item, according to the
// check_for_hacked_item function in DCv2 (TODO: Does this exist in V3+
// also? If so, is the logic the same?)
// check_for_hacked_item function in DCv2. It appears this logic was
// removed in v3, so this flag is unused on v3+.
// 00000020: Character has meseta out of range (< 0 or > 999999)
// 00000040: Character was loaded on a client that has "important" files
// modified (on GC, these files are ending_normal.sfd, psogc_j.sfd,
@@ -529,8 +529,13 @@ struct PSOGCCharacterFile {
// ItemPMT.prs, itemrt.gsl, itempt.gsl, and PlyLevelTbl.cpt). For files
// larger than 1000000 bytes (decimal), the game only checks the file's
// size and skips checksumming its contents.
// It seems that v3 and BB only use flag 00000001 and ignore the rest.
// PSO v3 and later only use flag 00000001; all logic that checks or sets
// the other flags was removed in v3. Curiously, there is logic in v3 that
// clears flags 00000001 and 00000002 at the same time, but 00000002 is
// never set.
/* 041C:0000 */ be_uint32_t validation_flags = 0;
// The creation timestamp is measured in seconds since midnight on 1
// January 2000.
/* 0420:0004 */ be_uint32_t creation_timestamp = 0;
// The signature field holds the value 0xA205B064, which is 2718281828 in
// decimal - approximately e * 10^9. It's unknown why Sega chose this