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AI Script
Posted By: scarab	Date: 8/5/11 4:50 a.m.
I don't know if anyone has done this before but I transcribed the (Halo3?) AI/level-designer script code from the ViDoc. Its not a language that I recognize. It looks like its hand rolled. Does anyone recognize the language? OMG its Lisp! Its been so long that I forgot. scarab, you're a dumbass! I'm so embarrassed that I'm tempted to not post this but if there are any lisp programmers reading then maybe you could dissect the script. Can anyone quess the level? Is it firefight or campaign? There is a mention of docks. Is it the factory section where we fight the scarab? The editor uses syntax highlighting - various parts are color coded by the editor. I see: purple for constants (or perhaps globals) blue for reserved words and function names green for function parameters Constants are pieces of information that are given a value once and then never change. Reserved words are words that are part of the programming language and you can't use them for the names of your own variables or functions. Examples in this script are: if begin cond Of course, since this is Lisp, I suspect that you can redefine them. (But you'd probably be mad to do so.) There are 3 functions in this script: wake (commented out) ai_place get_game_difficulty A function is a self contained bit of code that you write once and then you can call it as many times as you want in the rest of your program. A good function does one simple (or easy to understand) task. An example from this script is ai_place which looks as if it spawns squads. You can often pass extra pieces of information to the function so that it can operate on different things in different calls. For example in this script, ai_place takes a parameter that tells it which squad to place. We see various examples of this, just look at the calls to ai_place in the script below. Note that ai_place isn't being told where to put the squads; that information must be stored in the squads themselves. The call could have taken two parameters for example: (ai_place sq_ss_squadname whereto_put_the_squad) but instead it just has (ai_place sq_ss_squadname) so these squads are quite complicated objects with lots of information in them (doh they are lists you fool). I thought this language was kind of neat and I was going to have fun dissecting it and how it works. But now that I have recognized it as Lisp I realize that I just need to look it up online and read a gazillion tutorials. I have one final comment/question about Lisp - why did they use parentheses? On my keyboard I have to hold down the shift key whilst typing ( or ). Why didn't the creators of List use [ and ]. It would save typing effort [yes I'm that lazy]. Anyway here is the script. Can you understand it? Work out which level its for? ; wake chapter title ; (wake chapter_blind) ;placing allies (pelicans and marines) (ai_place sq_ss_johnsons_marines) (if (<= (ai_living_count gr_marines) 1) (ai_place sq_ss_dock_marines) ) (ai_place sq_ss_pelican_01) (ai_place sq_ss_pelican_02) ; place covenant (ai_place sq_ss_cov_01) (ai_place sq_ss_cov_02) (ai_place sq_ss_cov_03) (ai_place sq_ss_cov_04) (if (>= (game_difficulty_get) heroic) (begin (cond ((<= (game_difficulty_get) normal) (ai_place sq_ss???)) ((= (game_difficulty_get) heroic) (ai_place sq_ss_???)) ((= (game_difficulty_get) legendary) (ai_place sq_ss_???)) ) (ai_place sq_ss_jackals_02) (ai_place sq_ss_jackals_03) (ai_place sq_ss_jackals_04) (ai_place sq_ss_jackals_05) ) )

Message Index

AI Script	scarab	8/5/11 4:50 a.m.
Re: AI Script	scarab	8/5/11 5:00 a.m.
Fixed: AI Script	scarab	8/5/11 5:26 a.m.
Re: Fixed: AI Script	Moorpheusl9	8/5/11 6:07 a.m.
Re: Fixed: AI Script	scarab	8/5/11 7:20 a.m.
Should've used Python *NM*	JDQuackers	8/5/11 7:30 a.m.
Re: AI Script	General Vagueness	8/5/11 12:30 p.m.
HaloScript	kornman00	8/5/11 3:17 p.m.
Re: HaloScript	scarab	8/7/11 9:06 a.m.
Re: AI Script	dmiller	8/7/11 1:17 a.m.
Re: AI Script	scarab	8/7/11 8:54 a.m.
Re: AI Script	dmiller	8/7/11 9:29 a.m.
Re: AI Script	Moorpheusl9	8/7/11 9:33 a.m.
Re: AI Script	dmiller	8/7/11 9:35 a.m.
Re: AI Script	scarab	8/7/11 10:12 a.m.
Re: AI Script	ZackDark	8/7/11 2:40 p.m.
Re: AI Script	dmiller	8/7/11 5:02 p.m.
Re: AI Script	Louis Wu	8/7/11 5:15 p.m.
Re: AI Script	dmiller	8/7/11 5:23 p.m.
Re: AI Script	scarab	8/8/11 3:34 p.m.
Re: AI Script	dmiller	8/8/11 9:51 p.m.
Re: AI Script	JonnyOThan	8/11/11 12:42 p.m.
Re: AI Script	scarab	8/11/11 4:32 p.m.
Re: AI Script	dmiller	8/13/11 2:21 p.m.
Re: AI Script	scarab	8/13/11 5:27 p.m.
Re: AI Script	RC Master	8/7/11 7:41 p.m.
Re: AI Script	ZackDark	8/7/11 8:30 p.m.
Re: AI Script	General Vagueness	8/7/11 8:36 p.m.
Re: AI Script	ZackDark	8/7/11 8:42 p.m.
Re: AI Script	dmiller	8/7/11 8:57 p.m.
Re: AI Script	Hyokin	8/7/11 9:21 p.m.
Re: AI Script	dmiller	8/7/11 11:03 p.m.
Re: AI Script	ZackDark	8/7/11 11:19 p.m.
Re: AI Script	dmiller	8/7/11 11:23 p.m.
Re: AI Script	Hyokin	8/7/11 11:20 p.m.
Re: AI Script	ZackDark	8/7/11 11:22 p.m.
Re: AI Script	dmiller	8/7/11 11:26 p.m.
Re: AI Script	ZackDark	8/7/11 11:27 p.m.
Welcome to the forums, Dan!	Hyokin	8/7/11 11:34 p.m.
Re: AI Script	dmiller	8/7/11 11:44 p.m.
Re: AI Script	dmiller	8/7/11 11:45 p.m.
Re: AI Script	RC Master	8/8/11 7:10 a.m.
Re: AI Script	Avateur	8/7/11 11:50 p.m.
Re: AI Script	Hyokin	8/7/11 11:57 p.m.
Re: AI Script	dmiller	8/8/11 1:17 a.m.
Re: AI Script	SonofMacPhisto	8/8/11 6:11 p.m.
Re: AI Script	dmiller	8/8/11 9:54 p.m.
Seriously dude, you're awesome *NM*	ZackDark	8/8/11 10:46 p.m.
Re: AI Script	ZackDark	8/7/11 11:50 p.m.
Re: AI Script	Leviathan	8/8/11 12:11 a.m.
I also share this question *NM*	ZackDark	8/8/11 12:13 a.m.
Re: AI Script	dmiller	8/8/11 1:21 a.m.
Re: AI Script	General Vagueness	8/8/11 1:34 p.m.
Re: AI Script	FyreWulff	8/8/11 12:41 a.m.
Re: AI Script	dmiller	8/8/11 10:54 a.m.
Re: AI Script	bluerunner	8/8/11 11:04 a.m.
Re: AI Script	dmiller	8/8/11 8:54 p.m.
Re: AI Script	FyreWulff	8/9/11 4:56 p.m.
Re: AI Script	Hyokin	8/8/11 11:09 a.m.
Re: AI Script	RC Master	8/8/11 1:40 p.m.
Re: Thanks.	Joe Duplessie (SNIPE 316)	8/8/11 2:44 p.m.
Re: Thanks.	General Vagueness	8/8/11 5:25 p.m.
x3 thanks for awesome	SonofMacPhisto	8/8/11 6:06 p.m.
Combat sandbox and mission design	GhaleonEB	8/8/11 1:10 a.m.
Re: Combat sandbox and mission design	dmiller	8/8/11 1:26 a.m.
Re: Combat sandbox and mission design	dmiller	8/8/11 1:29 a.m.
Re: AI Script	Lord Friendship	8/8/11 12:33 p.m.
Re: AI Script	dmiller	8/8/11 8:55 p.m.
Re: AI Script	Gravemind	8/8/11 3:29 p.m.
Re: AI Script	scarab	8/8/11 3:49 p.m.
Re: AI Script	Lurono	8/8/11 6:52 p.m.
Re: AI Script	SonofMacPhisto	8/8/11 7:00 p.m.
Yes to both *NM*	Lurono	8/8/11 7:15 p.m.
Ok, I'm not nuts. Well, I am... but... n/m :) *NM*	SonofMacPhisto	8/8/11 7:22 p.m.
Re: AI Script	dmiller	8/8/11 9:42 p.m.
Re: AI Script	RC Master	8/9/11 9:34 a.m.
Re: AI Script	dmiller	8/9/11 9:47 p.m.
Re: AI Script	JonnyOThan	8/10/11 3:27 p.m.
Re: AI Script	RC Master	8/10/11 7:21 p.m.
Re: AI Script	ZackDark	8/10/11 10:37 p.m.
Re: AI Script	Hyokin	8/10/11 11:36 p.m.
Re: AI Script	ZackDark	8/10/11 11:59 p.m.
Re: AI Script	RC Master	8/11/11 8:30 p.m.
343i, hire him too! *NM*	Hyokin	8/11/11 10:02 p.m.
Re: 343i, hire him too!	RC Master	8/13/11 10:34 a.m.
Re: AI Script	ZackDark	8/11/11 11:02 p.m.
Re: AI Script	RC Master	8/12/11 7:28 a.m.
Re: AI Script	ZackDark	8/12/11 6:26 p.m.
Re: AI Script	dmiller	8/13/11 2:39 p.m.
Re: AI Script	FyreWulff	8/9/11 5:23 p.m.
Re: AI Script	Lurono	8/9/11 8:07 p.m.
The worst kind *NM*	scarab	8/10/11 1:03 a.m.
And a serious answer...	Lurono	8/9/11 8:13 p.m.
Re: AI Script	dmiller	8/9/11 9:39 p.m.
Re: AI Script	ZackDark	8/9/11 10:37 p.m.
Re: AI Script	dmiller	8/9/11 10:41 p.m.
Re: AI Script	ZackDark	8/9/11 10:45 p.m.
Re: AI Script	dmiller	8/9/11 10:47 p.m.
Re: AI Script	ZackDark	8/9/11 10:52 p.m.
Re: AI Script	dmiller	8/9/11 11:13 p.m.
Re: AI Script	scarab	8/10/11 1:28 a.m.
Re: AI Script	dmiller	8/10/11 9:18 a.m.
Re: AI Script	scarab	8/11/11 4:49 a.m.
Re: AI Script	dmiller	8/11/11 9:49 a.m.
Re: AI Script	Dagoonite	8/11/11 10:31 a.m.
Re: AI Script	RC Master	8/11/11 11:41 a.m.
Re: AI Script	dmiller	8/12/11 1:20 a.m.
Re: AI Script	RC Master	8/12/11 7:05 p.m.
Re: AI Script (ooh! Question!)	RC Master	8/13/11 5:52 a.m.
Re: AI Script (ooh! Question!)	dmiller	8/13/11 2:28 p.m.
Re: AI Script (ooh! Question!)	dmiller	8/13/11 2:34 p.m.
Re: AI Script (ooh! Question!)	RC Master	8/13/11 8:37 p.m.
Re: AI Script	General Vagueness	8/9/11 11:38 p.m.
Re: AI Script	mrbig	8/10/11 12:50 a.m.
Re: AI Script	dmiller	8/10/11 9:11 a.m.
Aww crap	RC Master	8/8/11 7:22 a.m.