Use Russian Doom source port for DOS.

https://github.com/Russian-Doom/russian-doom-dos

I have tried all the ports and they are very slow, the console is a miyoo mini, is it impossible to modify it in the original file?

Its been a long time since I looked at the heretic setup program and I can't look right now but I thought you could rebind keys in it. If not then check the cfg file. If not then the heretic source is out there and compilable.

DosFreak wrote on 2024-02-08, 16:20:

Its been a long time since I look at the heretic setup program and I can't look right now but I thought you could rebind keys in it.

You can, but vanilla Heretic (or Doom) simply have no keys for next/previous weapon. Only selecting specific weapon with arrow keys.

Right, the main problem is that the original game does not have it, it is added in all ports. It would be very complicated to add this function to the game, I have no idea how to compile

You can try heretic-plus and see if that works for you. It's not vanilla but it's still DOS.
https://www.doomworld.com/forum/topic/49486-heretic-goodies/

DosFreak wrote on 2024-02-08, 17:09:

You can try heretic-plus and see if that works for you. It's not vanilla but it's still DOS.
https://www.doomworld.com/forum/topic/49486-heretic-goodies/

thanks for all the answers! I looked for information on that version of heretic, but I couldn't find anywhere that has keys for previous and next, could you tell me if so, what keys would they be?

I provided the above to show that something similar was done with heretic in DOS so it would be possible to do the same or similar to fit your situation or a TSR outside the game or in whatever program you are using to run the game.
I don't have any interest in crippling gameplay on a handheld. 😉
You'd be better off asking on gaming specific forums like doomworld or similar.

for a moment I thought I had the solution

the original dos version itself doesn't seem to have any weapon switching other than the number keys, even if using a joystick or mouse. I've looked into the setup program and the heretic.cfg file and there simply isn't any configuration for weapon selection. Items? Yes. Weapons? No.
Dosbox will let you map multiple keys to a single one, but it won't cycle them, just "press" them all at once.
The functionality you're looking for would need to come either from a source port of heretic, or a custom build of Dosbox that lets you run a keyboard macro - one that cycles a keypress everytime you press it, so the first time you press it, you get a "1", then a "2" and so on, until it goes back to 1.
Good luck!

Just a side note: from what I remember MagicDOSBox on Android had a similar macro feature. I guess that's not that useful for the OP?

I use dosbox pure, I think the idea of ​​making a macro is the best solution, but I have no idea how to do it.

https://www.autohotkey.com/board/topic/148538 … -with-cooldown/

That might help?

I can't use autohotkey on my handheld console.

Apologies again, this is not a direct solution to your problem, but since NOVERT is a thing, I was curious if a key mapper TSR with simple logic could be created and loaded in DOSBox before the game starts. It would simply map, say n to one of the numerics based on an incrementing counter value.

No idea if this works with Doom and Heretic way of handling keyboard input, but I got so curious I searched up this NASM-compatible barebone TSR, its author is using for his DOS utilities. Will give it a try and see if I can marry it with a keyboard remapping tutorials I can find, and revert (if this ever materializes that is 😉 ).

Sadly, the TSR solution is easier said then done. The tool would need to manage protected mode ISR-s from within the same DPMI host the game uses, and reassign its own ISR back after the game starts to run, so the above technique would not work.

I experimented with the suggested direction, though, but results were mixed. I ended up with a tool that works with real mode games, e.g. can change weapons in Wolf 3D, but... only in DOSBox-X, so application with handhelds is somewhat limited 😉

EDIT: ... but then I actually went ahead and patched the executable. I was curious how patching a Doom engine game would work out, and indeed work out it did. Sadly only had time to test with DOSBox and did not play through any of the maps.

Now, I have no idea how playable Heretic would be on a device with 4 action buttons, and even if every map could be completed, but I was thinking a similar patch for Ultimate Doom/Doom II/Final Doom could probably be useful for someone, as the four buttons could be Fire, Use, Strafe and Next weapon.

EDIT2: ... and I made those Doom patches as well

EDITX: removing the attachments; see below post for up to date versions attached.

Hey thanks for the effort, how can I patch it?

You put the patch into your game directory on a DOS machine (e.g. in DOSBox), make a backup of your game, then run the patch.
PatchMaker thread is actually one of the pinned topics in a neighbor subforum.

I decided to be not lazy and produced a Doom II patch that honors what weapons the player carries and does not take away the move forward mouse button.
Still takes away the ability of direct weapon selection.

EDIT: Have produced a patch for Doom1 which has even fewer limitations and only affects 3 buttons:
[1] selects the fist
[2] cycles down
[8] cycles up
All other numeric keys work as usual.

EDIT2: There's now a patch for Heretic which is similar the Doom 1 patch described above.
But also, I have made an alternative version which patches flight controls to avoid having to assign separate buttons to it.
[Use] + [Move forward] elevates the player
[Use] + [Move backwards] lowers
[Fly center] - lands the player as usual, but normal [Fly up] and [Fly down] have been taken away here.

... and the Final Doom patch that mimics Doom II patch described above, i.e. the one where actual player weapons are checked.

EDITX: For the sake of completeness, the TSR I mentioned above is available here.

EDITY: Previously shared Doom patches sadly had a bug. I have removed old downloads and uploaded new versions. This version also removes the Enter to refresh the pickup log message, so that Enter could be used comfortably for Use action.

Good progress! I don't quite understand the flying thing, does it mean that flying down and up doesn't need remapping but stopping flying if we have to look for a button on the portable console for the home key?