KCLUG November 2004

kclug@kclug.org

54 participants
130 discussions

RE: Game programming
by Brian Densmore 29 Nov '04

29 Nov '04

> -----Original Message----- > From: Brian Kelsay > > How exactly is Calc III helpful? Just curious. > > > Brian Kelsay > > >>> Jason Clinton 11/29/04 01:30PM >>> > > As a side note, knowledge of Calculus III would be extremely > helpful in > any 3D programming you might do. > In order to answer this question, one would have to know what Jason's definition of Calc III is. Not all colleges and universities will define it as the same thing. Certainly, a knowledge of Calculus, Differential Calculus, Linear Algebra, and Engineering Mathematics (prereqs for Engineering Math are Calc I thru IV [or I thru III, depending on where in NY you got your basic Calculus classes] and differential Calculus, at least at SUNY @ Stony Brook) would be helpful. Being able to deal with FFTs is always helpful. Having a good understanding of number theory, and random number generation is good too. I could go on, but y'all get the drift I think, games are highly mathematically intensive and the more you know the better game you can make. A good book on game theory is also good to have around. Also if you're good at anagrams... ;') Brian Densmore

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Re: Game programming
by Brian Kelsay 29 Nov '04

29 Nov '04

So mainly to keep track of the participants in the game and the monsters and machines that inhabit the invented game universe. Also to predict the motion of the game player so the monsters may realistically challenge the player and not act like idiots. Correct? Brian Kelsay Brian Kelsay >>> Jason Clinton <me(a)jasonclinton.com> 11/29/04 02:51PM >>> Brian Kelsay wrote: > How exactly is Calc III helpful? Just curious. Well, stuff like rectilinear motion, Jacobian transforms, vector fields, motion along a curve, parametric curves, ... all in 3-space.

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Game programming
by rsobba＠kcnet.com 29 Nov '04

29 Nov '04

I am not a gamer but an on again off again home OOP programmer. I need something to keep my interest up while I am learning. Have any of you done any game programming? I am wanting to program in C++ and Open GL but am curious about the graphics end of it. Will I need to create images using a package like Adobe Illustrator first or is this all done somehow within Open GL. Thanks in advance. Rick

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RE: Game programming
by Brian Densmore 29 Nov '04

29 Nov '04

Game programming is best done in straight C++ with occasional/frequent inline assembly thrown in. OOP programming adds a great deal of overhead to programming in general. But then with the powerful systems in use today, I suppose it is "ok" to use OOP to write games (although I wouldn't). Perhaps that is why so many of today's games require high-end systems, or maybe not. You're going to need/want some graphics/data files. There are a number of tools and probably some graphics you can download, but in the end you're going to need to make some files of your own. I don't do anything with OpenGL or game writing, although I have written and designed a few games. So I may not be the best source of information. There are certainly some objects you can create directly from inside OpenGL (triangles, boxes, pyramids, complex combinations of the same, etc). Go here and take the tutorial. It should also answer your questions better than me. http://nehe.gamedev.net/ > -----Original Message----- > From: rsobba > > > I am not a gamer but an on again off again home OOP programmer. I need > something to keep my interest up while I am learning. Have > any of you done > any game programming? I am wanting to program in C++ and Open > GL but am > curious about the graphics end of it. Will I need to create > images using a > package like Adobe Illustrator first or is this all done > somehow within > Open GL. > > Thanks in advance. > Rick > > > _______________________________________________ > Kclug mailing list > Kclug(a)kclug.org > http://kclug.org/mailman/listinfo/kclug >

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Re: screen scrollback
by Brian Kelsay 29 Nov '04

29 Nov '04

In Putty, you set the number of lines of scrollback in the Configuration window that appears when you launch the program. You can turn it down to zero or crank it up. XTerm and rxvt, et al have similar features from their options/config menu. screen -h (num) ---- Specifies the history scrollback buffer to be num lines high. also, you can permanently set this via the following: When screen is invoked, it executes initialization commands from the files "/usr/local/etc/screenrc" and ".screenrc" in the user's home directory. These are the "programmer's defaults" that can be overridden in the following ways: for the global screenrc file screen searches for the environment variable $SYSSCREENRC (this override feature may be disabled at compile-time). The user specific screenrc file is searched in $SCREENRC, then $HOME/.screenrc. The command line option -c takes precedence over the above user screenrc files. Commands in these files are used to set options, bind functions to keys, and to automatically establish one or more windows at the begin- ning of your screen session. Commands are listed one per line, with empty lines being ignored. A command's arguments are separated by tabs or spaces, and may be surrounded by single or double quotes. A `#' turns the rest of the line into a comment, except in quotes. Unintel- ligible lines are warned about and ignored. Commands may contain ref- erences to environment variables. The syntax is the shell-like "$VAR " or "${VAR}". Note that this causes incompatibility with previous screen versions, as now the '$'-character has to be protected with '\' if no variable substitution shall be performed. A string in single-quotes is also protected from variable substitution. Two configuration files are shipped as examples with your screen dis- tribution: "etc/screenrc" and "etc/etcscreenrc". They contain a number of useful examples for various commands. http://www.hmug.org/man/1/screen.html Brian Kelsay >>> "Jonathan Hutchins" <> 11/27/04 11:35PM >>> Regarding some recent discussion of getting a convenient scrollback buffer working with screen in an Xterm: I notice that Ctrl-PgUp works fine in Putty under windows.

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Apache 2.x and mod_rewrite
by Dustin Decker 28 Nov '04

28 Nov '04

Howdy All, I have a quick question on Apache 2.x (2.0.51 to be precise) and mod_rewrite. I've been trolling documentation at apache.org, but their examples are flying over my head. For the purposes of example, let's say I have purchased two domains - foo.com and foo.org. What I want to occur (without leaning on an http-equiv redirect in the browser), is to have anyone who visits www.foo.com <http://www.foo.com/> automagically redirected to www.foo.org <http://www.foo.org/> . Can anyone share with me a recipe for this that I can chew on. (Or even better, considering how lazy I am, just throw up and live with!) Thanks, Dustin Decker

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Firefox taking off!
by Brian Densmore 23 Nov '04

23 Nov '04

"OneStat.com, an Amsterdam, Netherlands-based provider of Web traffic measurement services, said that according to numbers gleaned from 2 million Web surfers around the world, the Mozilla Foundation's new Firefox releases appear to be cutting into Microsoft's still commanding lead in the browser market. "It seems that people are switching from Microsoft's Internet Explorer to Mozilla's new Firefox browser," Niels Brinkman, OneStat.com co-founder, said in a statement. OneStat's statistics, based on the Web surfers' activity in 100 countries, showed that IE's market share slipped to 88.9 percent in the third week of November, down 5 percentage points from its share in May. Mozilla-based browsers, including Firefox, rose to 7.4 percent, up 5 percentage points from May." Mozilla based browsers with 7.4% of the browser market? Wow, I'll bet Firefox is in M$'s scopes now. I wonder how long before the FUD begins? I'm not sure FUD is going to help them here. I bet they'll be "buying" up one of the third party IE add-on/resellers to get up to speed with Firefox. A new browser war on the horizon? Now would be the time for Mozilla people to approach PC vendors to get Firefox installed on new PCs. Brian Densmore

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Re: RE: Windows Boot Disk
by jmeeks＠kc.rr.com 23 Nov '04

23 Nov '04

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OT: Windows Boot Disk
by djgoku 23 Nov '04

23 Nov '04

I'm trying to configure a DOS floppy boot disk (bootdisk.com) with out a ram drive for ghost, and for some reason it isn't detecting the hard drives, just loads the floppy and cdrom support nothing else. My reasoning for this when I boot the disk that does a ram drive in the ghost save menu there is like ram a drive, both cdroms, 3 partitions, and a couple other things that I don't want in there. I do have a boot cd that I'm trying to emulate it which doesn't have a ram drive or lots of drives in the ghost save menu. I'm not totally sure which file autoexec.bat or config.sys loads/searchs for hard drives. Thanks, -- dj_goku -www.djgoku.com- -www.tektronic.org-

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RE: Windows Boot Disk
by Brian Densmore 23 Nov '04

23 Nov '04

Searching for hds, in dos? That doesn't happen in the autoexec.bat or config.sys, unless it is some strange hd. It happens inside the dos boot programs io.sys or msdos.sys. Loading RAM drives is a different story. To load a RAM drive in DOS it needs to be loaded in the config.sys file, something like this: DEVICE=path\to\RAMDRIVE.SYS size sector entries [/E|/A] HTH, Brian > -----Original Message----- > From: djgoku > > I'm trying to configure a DOS floppy boot disk (bootdisk.com) with out > a ram drive for ghost, and for some reason it isn't detecting the > hard drives, just loads the floppy and cdrom support nothing else. My > reasoning for this when I boot the disk that does a ram drive in the > ghost save menu there is like ram a drive, both cdroms, 3 partitions, > and a couple other things that I don't want in there. I do have a boot > cd that I'm trying to emulate it which doesn't have a ram drive or > lots of drives in the ghost save menu. I'm not totally sure which file > autoexec.bat or config.sys loads/searchs for hard drives. >

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KCLUG November 2004