Tony Hawk: SHRED

Tony Hawk: SHRED (Robomodo, Activision, 2010) is a skateboarding and snowboarding game on Robomodo’s own RME engine. It runs on the PlayStation 3 and checks for a skateboard-shaped controller peripheral at start-up; the disc, title ID BLUS30542, version 01.00, is the one recorded here. Observed The check reads the capability word the controller reports and refuses a controller that declares an analog stick (bit 8, HP_ANALOG_STICK). With that single test skipped in the executable, an emulated controller that reports the bit moves on from the “no board connected” screen to the board’s calibration screen. Observed · the executable’s check, read; one run under RPCS3 with the test skipped The executable has a second route past the board, a QA switch: the u32 qa_build at 0x172B10C, which only a qa_build entry of boot.ini (true or nonzero) sets at start-up. It gates the native cheat CTRL, which sets the globals board_build 0, controller_build 1 and keyboard_build 0, and the board-connect routine ignores the scripts’ controller_build unless the switch is set. Observed · static reading of the executable With the switch and those three globals written into memory at start-up, an ordinary controller reaches the main menu and plays CHARLIE’s training, the board test left as shipped and no disc bytes changed. Observed · runs under RPCS3 CTRL is typed on the game’s own cheat screen (Universal/Initials/Initials.gfx) and is not a row of MAIN.DB’s cheat_codes, whose one row is RICE. Observed On a controller, the skating scripts push on R1, turn with the left stick’s X axis and push while idle with its Y axis. Observed · static reading of the skating scripts Every observation in the wiki’s SHRED pages comes from one dump of that disc: 1,124 files, 5,875,743,333 bytes, decrypted. Observed

Where the data lives

PS3_GAME/
  PARAM.SFO                      title, title ID, version
  USRDIR/
    EBOOT.BIN                    the executable (SCE SELF)
    SCRIPTS.SDAT                 compiled Lua 5.1, a PAK inside an NPD wrapper
    levels/                      10 level PAKs
    levels/layers/               209 layer PAKs (sessions, difficulties, lighting)
    characters/, anim/, flash/   character, animation and Scaleform PAKs
    database/                    27 SQLite databases (MAIN.DB: levels, sessions, goals, surfaces)
    physics/                     8 Havok .HKX files
    audio/                       Wwise banks and packages, OGG
    videos/bik/                  451 Bink videos
PS3_UPDATE/PS3UPDAT.PUP          console firmware update

All of it observed on the dump; the file names are the disc’s Joliet names (The disc and its file names). Observed The 336 PAKs hold 67,320 entries (PAK archives); the largest groups are 28,046 texture pixel files and 27,446 texture headers. Proven · all 336 PAKs

Levels

The game has ten level archives. Their names are letters of the NATO alphabet, and the levels table of MAIN.DB gives each one’s board type (skate or snow); the descriptions below are what that table and the level’s session data name. Observed

Archive	Kind	Content
Charlie	skate	training and pro challenges (big air, manual and grind challenges, HP training)
India	skate	New Orleans
Juliet	skate	Morocco
Mike	skate	the amusement park: the table’s rows Kilo, Lima and Mike are its lower, combo and upper parts, in one archive
November	skate	Melbourne
Oscar	skate	the Wallows
Papa	skate	Santorini
Delta	snow	Beijing (halfpipe, big air)
Echo	snow	the French Alps
Foxtrot	snow	Whistler

The table also lists Bravo, Golf and Hotel, which have no archive. Observed Each level row names a load script, script\level_load_<name>.lua, which belongs to the encrypted script archive and has not been read. Observed Besides the ten bases there are 209 layer PAKs whose names carry a map id, so one level archive serves several playable maps. Observed

What are the levels called in the game?

The descriptions above are the database’s. The display strings the menus show were not read.

Pages

• Robomodo RME: the engine, its middleware and how sure the pages are.
• PAK archives, CSTR streams, The disc and its file names.
• Geometry: Model libraries, Vertex formats, Placements, Triangle winding, Skinned streams.
• Materials: Material banks.
• Textures: Textures (THP and TXP).
• Collision: Havok 7.1 collision packfiles.
• World: SCP scene tables, Spot chunks and spawns, Splines, Lights, Levels and layer PAKs.
• Data model: MAIN.DB and the other databases.

What is known

System	Claims	Confidence	Proven or observed
Overview	25		88%
Archives and files	71		96%
Data model	21		100%
World and streaming	176		80%
Geometry	181		78%
Materials	58		67%
Shaders	86		76%
Textures	50		84%
Collision and physics	197		84%

Computed from the engine's pages; the whole picture is on the coverage page.