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diff --git a/devtools/skycpt/README b/devtools/skycpt/README new file mode 100644 index 0000000000..4b303cb0e9 --- /dev/null +++ b/devtools/skycpt/README @@ -0,0 +1,58 @@ + +Since V.0.8.0 ScummVM requires the SKY.CPT file for running Beneath a Steel Sky. +This file contains data that was originally included in the SKY.EXE and was also included +in the ScummVM executable before 0.8.0. +Including all this data in the executable has the disadvantage that it wastes memory. +Even when playing a completely different game (like, e.g. Day of the Tentacle) ScummVM would +have the Beneath a Steel Sky data lying around in memory. This doesn't make much of a difference +on a 1GB RAM windows system, but for platforms like PALM and PocketPC it's a real problem, +so this data was moved into the SKY.CPT file and is loaded at runtime when BASS is started. + +This program creates the SKY.CPT file. + +If you want to create your own file, *PLEASE* simply forget about it. +It's a long and annoying procedure and won't help you with anything. +This program was only included in ScummVM's source tree because the Debian license +forces us to. +Instead download the file from http://www.scummvm.org/ +Also, please be aware that if you create your own CPT file (if it isn't exactly the same as the +one we offer for download at www.scummvm.org), it will be incompatible and the savegames produced +using the file will be incompatible with ScummVM using the normal CPT file. +The incompatibility will not be detected by ScummVM, it will most probably simply crash. + +If you still want to waste your time by creating this file: +1) compile the tool +2) run it once, it'll complain that it's missing 7 files, the RESET.* files but + it creates an incomplete COMPACT.DBG file anyways, which you rename to SKY.CPT. +3) download the seven different Beneath a Steel Sky versions: + v.0.00288: The first floppy version that was released + v.0.00303: Another floppy version + v.0.00331: Another floppy version + v.0.00348: Another floppy version + v.0.00365: CD Demo + v.0.00368: Full CD version + v.0.00372: Final CD version +4) Apply the supplied skycpt-engine.patch to a clean copy of the ScummVM + codebase. This modifies the sky engine to allow savefiles to be generated + containing the required data for the skycpt tool. +5) Compile the patched ScummVM. +6) Start each of the BASS versions with this patched version, enjoy the intro + over and over again. + Afterwards, it'll automatically show the load/save dialog where you save the game. +7) Rename the Savegame files you created (SKY-VM.000 etc., not the ASD or SAV + file) to "RESET.*", depending on the version. + e.g. RESET.288 for v.0.00288 +8) Rename each file with a ".gz" suffix and run gunzip on it. + This removes the ScummVM gzip savefile compression. + Failing to do this will cause skycpt to abort at a filesize assert + when reading the "RESET.*" files. +9) Copy the files into the skycpt tool directory, execute the tool again. + It'll create a new COMPACT.DBG. +10) Rename this file to SKY.CPT. +11) DELETE IT BECAUSE IT'S PROBABLY BROKEN, NOT WORTH BOTHERING WITH ANYWAYS + AND DOWNLOAD THE SKY.CPT FILE FROM THE URL ABOVE!! + +Oh, I almost forgot. +The program only works on little endian systems and probably isn't alignment safe either. +It may also leak memory or accidentially reformat your harddisk. Who knows. +You've been warned. |