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View Full Version : PROBLEM WITH GRAVITY


maezme
03-20-2008, 11:37 AM
Hi, i'm having this "problem", i'm playing JO, the single player mode, and when i try to change the g_gravity, it says it is read only. Is there any way i can change it?. If somebody knows please tell me.
Thanks.

Samuel Dravis
03-20-2008, 12:14 PM
I can't remember if you can change gravity in single player, but if you can, the way to unlock such commands is to type "helpusobi 1" and then try the gravity command again.

maezme
03-20-2008, 02:03 PM
I can't remember if you can change gravity in single player, but if you can, the way to unlock such commands is to type "helpusobi 1" and then try the gravity command again.

Yes, i've tried that, but it says it is read only. Maybe i can change a game file, but i don't know which one.
Anyway, thank you for replying.

nizwiz
03-20-2008, 10:15 PM
Well, I don't know if it can be accomplished easily using a cheat or something. At any rate, it can be done by hacking all the singleplayer .bsp files (there are about 25 of them). If you're up for the challenge (it certainly is a bit tedious), I can tell you how. How badly do you want to change the gravity, anyway?

EDIT:
If you were prepared to install a Perl interpreter, I could post a bunch of scripts that would allow you to edit the entities lump in a .bsp file (which is exactly what you need to change gravity) without much effort.

EDIT:
Well, here you go:
http://files.filefront.com/jk2bspLumpAccesszip/;10009889;/fileinfo.html

Included is a shell script addgrav.cmd that does exactly what you want.
E.g., if you want to set the gravity in a bunch of sp maps to 700, extract the respective bsp files from assets0.pk3/maps into a new folder called maps, open a command prompt in that folder and enter the following
for %f in (*.bsp) do addgrav %f 700
(provided perl and addgrav.cmd are lying in your PATH).
Then pack the new folder up in a pk3.

Uhm, one more thing: if you're intending to try it out, please note that you do so at your own risk (read the disclaimer in the details section on the filefront page beforehand). I cannot be held responsible should the scripts prove defective and have unexpected side effects
(I've tried them out on all vanilla sp maps and they worked flawlessly, but I haven't thoroughly tested them, to be honest).

maezme
04-15-2008, 08:29 AM
Thank you. I haven't tried it yet, but i will.