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-
- This text was taken from several articles posted on:
-
- ALT.GAMES.DOOM
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-
-
- The "R_ProjectSprite: Invalid frame..." bug in DOOM 1.5b (after using the
- `idkfa' cheat and trying to select the shotgun) is probably because the cheat
- gives you the `super shotgun' which is available in DOOM2, but not in the
- Beta. Use your favourite binary editor to apply the following patch to DOOM.EXE
-
- Find:
- B9 09 00 00 00 C7 40 B0 02 00 00 00
-
- Replace with:
- B9 08 00 00 00 C7 40 B0 02 00 00 00
- ^^
- Incidentally, the number `09' is the number of weapons the `idkfa' cheat will
- give you. If, for some reason, you wish to limit yourself to not using the
- plasma rifle and/or the BFG when cheating change this number to 07 or 06
- respectively.
-
- While we're hacking 'idkfa', is there any way to keep 'idkfa' from giving
- all the colored keys? I sometimes use idkfa in a pinch for ammo but don't
- want the keys.
-
- Certainly! As usual, load up your favourite binary editor and prepare to
- operate on DOOM.EXE as follows:
-
- Find the sequence:
-
- B9 06 00 00 00 8D 42 44
- ^^
- and replace the marked number `06' with the number of keys you wish to obtain
- when using the `idkfa' cheat. Changing it to zero works fine (no, not a
- coincidence, I checked). Incidentally, there are six keys: three keycards and
- three skull keys.
-
- And while we are on the subject of cheating, the following patch enables
- the cheat keys in NightMare mode (haven't actually tried this one, but there
- is no reason why it shouldn't work ;-)
-
- Find: 0F 85 29 03 00 00 83 3D 70 82 02 00 04
- Replace: 0F 85 29 03 00 00 83 3D 70 82 02 00 45
- ^^
-
- Enjoy,
-
- Elias.
- ep104@cus.cam.ac.uk.
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