python front end to nethack?

S. Chapelin · 02-13-2012, 04:17 PM

First I just want to send nethack some commands and receive the output interactively, then I want to draw the results using pygame or preferably a 3d engine or something. I'm aiming for a fps. Lots of fun in perspective. Luckily, nethack should send relatively constant formated output (for the tty).

firstfire · 02-14-2012, 02:03 AM

Hi.

Take a look at glhack -- another frontend to nethack.

S. Chapelin · 02-14-2012, 02:32 AM

I'm thinking of eventually using pygame or a 3d module, but for now I just want to play around with it, see what it does, if it works properly. I just want to input a command and read the output. Have fun with it.

Sorry for the double post. I hadn't noticed there was a second page.
I will look at glhack.

S. Chapelin · 02-14-2012, 07:15 AM

Played around with it for a bit.
Here is an example of the output.

Code:

response = [?1049h[H[2J[H[2;1HNetHack, Copyright 1985-2003
[3;1H         By Stichting Mathematisch Centrum and M. Stephenson.
[4;1H         See license for details.
[5;1H[6;1H[7;1HShall I pick a character's race, role, gender and alignment for you? [ynq]
command = y
response = y[H[2J[H[H[2J[H[4;60H---------------[5;60H|...f.........|[6;60H|.:.@.........|[7;60H|........$....|[8;60H+.............|[9;60H---+-----------[6;64H[23;1HGillesg the Evoker        St:11 Dx:12 Co:13 In:18 Wi:10 Ch:11  Chaotic[K
[24;1HDlvl:1  $:0  HP:12(12) Pw:7(7) AC:9  Exp:1[K[1;23H[K It is written in the Book of Anhur:[2;23H[K [3;23H[K     After the Creation, the cruel god Moloch rebelled[4;23H[K     against the authority of Marduk the Creator.[5;23H[K     Moloch stole from Marduk the most powerful of all[6;23H[K     the artifacts of the gods, the Amulet of Yendor,[7;23H[K     and he hid it in the dark cavities of Gehennom, the[8;23H[K     Under World, where he now lurks, and bides his time.[9;23H[K [10;23H[K Your god Anhur seeks to possess the Amulet, and with it[11;23H[K to gain deserved ascendance over the other gods.[12;23H[K [13;23H[K You, a newly trained Evoker, have been heralded[14;23H[K from birth as the instrument of Anhur.  You are destined[15;23H[K to
command = 	
response = recover the Amulet for your deity, or die in the[16;23H[K attempt.  Your hour of destiny has come.  For the sake[17;23H[K of us all:  Go bravely with Anhur![18;23H[K[C--More--[1;22H[K[2;22H[K[3;22H[K[4;22H[K[4;60H---------------[5;22H[K[5;60H|...f.........|[6;22H[K[6;60H|.:.@.........|[7;22H[K[7;60H|........$....|[8;22H[K[8;60H+.............|[9;22H[K[9;60H---+-----------[10;22H[K[11;22H[K[12;22H[K[13;22H[K[14;22H[K[15;22H[K[16;22H[K[17;22H[K[18;22H[K[6;64H[HHello gillesg, welcome to NetHack!  You are a chaotic male human Wizard.[K[6;64H[H[K[6;64H[HUnavailable command '^I'.[K[6;64H[H[K[5;64H.[6;64H<f[7;64H.[8;64H@
command = #quit
response = [H# [Kquituititt[H[K[8;64H[HReally quit? [yn] (n) [K
command = y
response = y[K[8;64H[HDo you want your possessions identified? [ynq] (n) [Kn[K[8;64H[HDo you want to see your attributes? [ynq] (n) [K

As you can see, it is rather constant. Shouldn't be too hard to parse. Just have to look for the position markers ([x;xxH) to build the map, then find the stats for the hud, display the messages in a pretty box. First, though, I'm just going to put the map into a two-dimensional array.
Long term puzzle. Lottsa fun in sight.

S. Chapelin · 02-15-2012, 09:11 PM

I've comme across a slight difficulty. See this extract of the output from nethack:

Code:

[5;60H|...f.........|

The [5;60H is the coordinates where nethack draws the map, which is the |, the line of dots and the f.
I have succeded in extracting the coordinates.
In order to extract the map portion, I must go from the H to the little square, which is in reality an escape caracter (0x1B), as I discovered in Hexedit.
So I tried the following line:

Code:

 while c_c[i] != 0x1B

and

Code:

 while c_c[i] != '0x1B'

and (desperate)

Code:

 while c_c[i] != ""

but none of them work.

Code:

$ python test.py
  File "test.py", line 40
    while c_c[i] != 0x1B
                       ^
SyntaxError: invalid syntax

Any ideas?

firstfire · 02-15-2012, 09:34 PM

Hi.

Try

Code:

while c_c[i] != '\x1B': ...

S. Chapelin · 02-16-2012, 05:57 AM

Thanks. It worked. (I added a little security)

Code:

    while i < len(c_c) and c_c[i] != '\x1B':

Also, to Nominal Animal: I am going to look at pyte. I hadn't caught on earlier. I am sometimes slow to catch on. Thanks for the tip.

Code:

stream.feed(u"[5A")  # Move the cursor up 5 rows.

So the escape[ sequence would mean move to?
Verrrry interrrestink. got to know more!

S. Chapelin · 02-16-2012, 07:39 PM

Believe it or not, this is what the nethack output looks like when it is put into a two dimentional array. Not much, right?
This should be the floor on which the hero will stand and look around from the position occupied by the '@', with his faithfull dog where the 'f' is, ready to be attacked by a lichen (':'), I think it is. What I want to do next is a pseudo3d, that is to say that the hero will be able to look around and move around with the mouse, but although he will probably be able to look up and down, it will be an illusion as he won't be able to move up or down. When he moves up or down a level, there will only be a replacement of the map by another. He won't see the stairs going down. Similarely, when he falls in a hole, in reality only his height will change. Nothing else.
Also, even though hethack is turn based, modern computers are so fast that I wonder if it will make a difference. I don't know. We'll just have to see.
Anyway, lots of fun in sight!

Code:

00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000---------------00000
000000000000000000000000000000000000000000000000000000000000|...f.........|00000
000000000000000000000000000000000000000000000000000000000000|.:.@.........|00000
000000000000000000000000000000000000000000000000000000000000|........$....|00000
000000000000000000000000000000000000000000000000000000000000+.............|00000
000000000000000000000000000000000000000000000000000000000000---+-----------00000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
00000000000000000000000000000000000000000000000000000000000000000000000000000000
0Python the Evoker         St:11 Dx:12 Co:13 In:18 Wi:10 Ch:11  Chaotic000000000