Basically, the patch, intended for Commander Keen 4-6 and Bio Menace, lets one change the game speed globally.
For details about the patches, refer to these links:
http://www.shikadi.net/keenwiki/Patch:Game_Speed - For Commander Keen 4-6 (any other patch hasn't been added by me)
http://www.shikadi.net/moddingwiki/Patc ... nace/Speed - For Bio Menace
An example usage is also given below. Note that I've *modified* the default values used, for the original purpose of letting one see what it does.
--- Original post ---
Hey there,
As it's Keen Day now (March 14th, 2012, 0:00, GMT+2 time), I've thought of giving out an example of a small present...
Before I reveal more details, I'd like the ones interested to try out the following:
1. To begin with, have a clean installation of Commander Keen 4, Apogee release, EGA, v1.4. Just in case one hasn't got it, a download link is currently available in the following page: http://www.3drealms.com/keen4/index.html
2. Now, if you haven't got CK4PATCH, look for the most recent unofficial extension to CKPATCH here: viewtopic.php?t=975
Basically, you'd want this: http://www.0x27.com/downloads/ckpatch-0.11.0.zip
3. Even if you have got CKPATCH, there are chances you might still need to obtain a different version, in case you get an error with what's to follow. The above one is known to work.
4. Within the same directory, create a new file named PATCH4.PAT, with the following contents
5. Now you can run "CK4PATCH PATCH4.PAT" within DOSBox. Begin a game so you can see...
Code: Select all
# Patch file for Keen - use with CK4PATCH.EXE
%ext ck4
%version 1.4
%patch $18E79 $02BCW
%patch $18E7E $00AFW
%end
Well, some of you may be aware of the IMF format used for in-game music. Ones may also know that a few so-called IMF rates are used, like 560Hz in Commander Keen and 700Hz in Wolfenstein 3D.
So, I've wondered if that speed can be changed in Commander Keen and/or Bio Menace...
Oh yeah: I'm going to reveal what's that soon. A few of you have possibly found the patch on the KeenWiki (for Commander Keen) or the ModdingWiki (for Bio Menace) before. That's all I'd tell for now... ;)