SeymourBETA

Update 2.66

6/10/2026

v2.66.0BETAMINOR

Seymour

Blitzball ROSTER (60 players' stats/growth) NOW EDITABLE in the GAME FILE — `.ebp` ATEL-variable writer PROVEN (RT0 byte-identical + mutation-isolated)

The first writer that edits the blitzball base in a GAME FILE, not the save. The 60 players' base stats + growth curves live INSIDE bltz0002.ebp as ATEL variables 0x126..0x12E (8 stats × 60 players × 4 floats a,b,c,growthType; growth formula decoded: gt -1→1, 0→a+b·Lv, 1→a+b·Lv^c, 2→a+b·Lv−c·Lv², 3→a+b·Lv+c·Lv²). New primitive Event_File.PatchEventDataElement(varId, idx, bytes) (FfxLib/Event/Event_File.AtelVar.cs): an in-place ATEL eventData-variable patcher, length-preserving via the existing ScriptChunkOverride hook → Write() re-packs byte-identical except the edited slice. New read/write file-class FfxLib/Blitzball/BlitzballRoster_File.cs (decodes/edits the 60×8 growth) + gate Tools/BlitzballRosterRt0.cs (--blitzball-roster-rt0). PROVEN: byte-exact read vs the FFXDataParser dump (player0 HP = 70 + 30·Lv + 0.711·Lv²); no-edit Read→Write byte-identical (5,445,248 B); 480/480 growthType valid; a single-float patch isolated to the 4 target-element bytes at the predicted offset (@0x491680). RE (the missing piece): the variables' value-base = worker0_header + 0x30 (robustly resolved, no hardcode). Honesty: ONLY stats/growth are file-data; names = string macro 0x700+idx (writer exists, wiring pending), positions/technique-definitions/match-engine = EXE (IDA-pending), learned-techs/cost/contract/level/EXP = save (out of game-file scope). No UI yet (next = BlitzballRosterEditor). (NEW capability: first blitzball roster writer into a game file). Does not touch the save (CHAPPU/checksum), runtime, SIN, or other lanes; only ADDS new files + 1 Program.cs dispatch. Build 0 errors / 361 warnings; --blitzball-roster-rt0 PASS (no-edit byte-identical + mutation isolated). Docs: docs/reverse/FFX_BLITZBALL_ROSTER_BASE_RE_2026-06-10.md + docs/ai/BLITZBALL_100PCT_EDITOR_CHECKLIST_2026-06-10.md

v2.65.3

v2.66.0.1BETAREVISION

Seymour

Blitzball: player names CONFIRMED editable (macrodic chunk 7) + in-lane accessor

(code enters but behavior unchanged — accessor not yet consumed; RE/prep). Decoded the real new_uspc/menu/macrodic.dcp and proved the 60 players' names = macro 0x700+idx = chunk 7 (FFX charset byte−0x0F; 101 entries): 0x702=Datto, 0x703=Letty, 0x704=Jassu, 0x705=Botta, 0x706=Keepa, 0x707=Bickson…; 0x700/0x701 reference the renameable lead characters (Tidus/Wakka). → Already editable TODAY via the MacroExplorer module (reads+writes macrodic.dcp with SafeWriter/undo/validation/round-trip). New read-only accessor FfxLib/Blitzball/BlitzballPlayerNames.cs (index↔macro 0x700+idx, TryGetName) as prep for the future BlitzballRosterEditor UI to show/edit the name inline. Does not touch MacroExplorer (text lane) or other lanes; only adds 1 file + docs. Build 0 errors / 361 warnings. Docs: docs/reverse/FFX_BLITZBALL_ROSTER_BASE_RE_2026-06-10.md §3 + docs/ai/BLITZBALL_100PCT_EDITOR_CHECKLIST_2026-06-10.md

v2.66.0

Back to updates

SeymourBETA

Update 2.66

6/10/2026

v2.66.0BETAMINOR

Seymour

Blitzball ROSTER (60 players' stats/growth) NOW EDITABLE in the GAME FILE — `.ebp` ATEL-variable writer PROVEN (RT0 byte-identical + mutation-isolated)

The first writer that edits the blitzball base in a GAME FILE, not the save. The 60 players' base stats + growth curves live INSIDE bltz0002.ebp as ATEL variables 0x126..0x12E (8 stats × 60 players × 4 floats a,b,c,growthType; growth formula decoded: gt -1→1, 0→a+b·Lv, 1→a+b·Lv^c, 2→a+b·Lv−c·Lv², 3→a+b·Lv+c·Lv²). New primitive Event_File.PatchEventDataElement(varId, idx, bytes) (FfxLib/Event/Event_File.AtelVar.cs): an in-place ATEL eventData-variable patcher, length-preserving via the existing ScriptChunkOverride hook → Write() re-packs byte-identical except the edited slice. New read/write file-class FfxLib/Blitzball/BlitzballRoster_File.cs (decodes/edits the 60×8 growth) + gate Tools/BlitzballRosterRt0.cs (--blitzball-roster-rt0). PROVEN: byte-exact read vs the FFXDataParser dump (player0 HP = 70 + 30·Lv + 0.711·Lv²); no-edit Read→Write byte-identical (5,445,248 B); 480/480 growthType valid; a single-float patch isolated to the 4 target-element bytes at the predicted offset (@0x491680). RE (the missing piece): the variables' value-base = worker0_header + 0x30 (robustly resolved, no hardcode). Honesty: ONLY stats/growth are file-data; names = string macro 0x700+idx (writer exists, wiring pending), positions/technique-definitions/match-engine = EXE (IDA-pending), learned-techs/cost/contract/level/EXP = save (out of game-file scope). No UI yet (next = BlitzballRosterEditor). (NEW capability: first blitzball roster writer into a game file). Does not touch the save (CHAPPU/checksum), runtime, SIN, or other lanes; only ADDS new files + 1 Program.cs dispatch. Build 0 errors / 361 warnings; --blitzball-roster-rt0 PASS (no-edit byte-identical + mutation isolated). Docs: docs/reverse/FFX_BLITZBALL_ROSTER_BASE_RE_2026-06-10.md + docs/ai/BLITZBALL_100PCT_EDITOR_CHECKLIST_2026-06-10.md

v2.65.3

v2.66.0.1BETAREVISION

Seymour

Blitzball: player names CONFIRMED editable (macrodic chunk 7) + in-lane accessor

(code enters but behavior unchanged — accessor not yet consumed; RE/prep). Decoded the real new_uspc/menu/macrodic.dcp and proved the 60 players' names = macro 0x700+idx = chunk 7 (FFX charset byte−0x0F; 101 entries): 0x702=Datto, 0x703=Letty, 0x704=Jassu, 0x705=Botta, 0x706=Keepa, 0x707=Bickson…; 0x700/0x701 reference the renameable lead characters (Tidus/Wakka). → Already editable TODAY via the MacroExplorer module (reads+writes macrodic.dcp with SafeWriter/undo/validation/round-trip). New read-only accessor FfxLib/Blitzball/BlitzballPlayerNames.cs (index↔macro 0x700+idx, TryGetName) as prep for the future BlitzballRosterEditor UI to show/edit the name inline. Does not touch MacroExplorer (text lane) or other lanes; only adds 1 file + docs. Build 0 errors / 361 warnings. Docs: docs/reverse/FFX_BLITZBALL_ROSTER_BASE_RE_2026-06-10.md §3 + docs/ai/BLITZBALL_100PCT_EDITOR_CHECKLIST_2026-06-10.md

v2.66.0