lisp-game-dev December 2009

lisp-game-dev@common-lisp.net

4 participants
6 discussions

[lisp-game-dev] [FLGC09] Thopter
by Elliott Slaughter 21 Dec '09

21 Dec '09

Here's my final submission for FLGC09. The game, Thopter, is a scrolling shooter inspired by the likes of Raptor: Call of the Shadows and other old games. Thopter is implemented in Common Lisp, using lispbuilder and cl-opengl for graphics, usocket and cl-store for sockets and serialization, and a handful of other CL utilties. The game engine used to build Thopter is freely available under the MIT license (see project page below). The controls are arrow keys to move, spacebar to shoot, and either left-ctrl or left-alt to fire a seeking missile. Three upgrades in the game restore health, increase the firepower of the gun, and provide missile ammo. Currently the game supports single player and two-player coop over LAN. To start a network game, open a terminal and run ./main --server=W.X.Y.Z --port=12345 and on the other machine ./main --connect=W.X.Y.Z --port=12345 where W.X.Y.Z is the IP address of the host machine and 12345 is some port of your choice. Here is the final video of the game: http://www.youtube.com/watch?v=5MDqC6XG-Ag Source and downloads (currently only Mac, but Windows and Linux coming soon) are available from the project page: http://code.google.com/p/blackthorn-engine/ Enjoy :-) -- Elliott Slaughter "Don't worry about what anybody else is going to do. The best way to predict the future is to invent it." - Alan Kay

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[lisp-game-dev] [FLGC09] Starting entry
by Elliott Slaughter 20 Dec '09

20 Dec '09

Hi everyone, I intend to start my competition entry on Monday. The game idea is a scrolling shooter game reminiscent of Raptor [1], an old DOS game. The game is be implemented in Common Lisp, based on my Blackthorn game engine [2]. Blackthorn itself uses Lispbuilder and CL-OpenGL for graphics. The engine is currently pre-alpha quality, but should be sufficient for a basic game. At any rate, if I spend some time fixing engine rather than game related issues, I believe the time will be well spent. The game is intended to run on Windows, Mac OS X, and Linux. (Basically, any PC platform that supports SDL.) I am also interested in getting the game to run on some sort of a mobile platform, but suspect I won't have time to look into that in only a week. Currently my best lead is ECL on the iPhone, but I haven't gotten the last known working build to compile on my system yet. I look forward to sending out further updates as development progresses. [1] http://en.wikipedia.org/wiki/Raptor:_Call_of_the_Shadows [2] http://code.google.com/p/blackthorn-engine/ -- Elliott Slaughter "Don't worry about what anybody else is going to do. The best way to predict the future is to invent it." - Alan Kay

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[lisp-game-dev] Hi all
by Erik Winkels 10 Dec '09

10 Dec '09

I just noticed this mailinglist in #lispgames' topic, so I ran to the sign-up form. So a minor introduction: I'm a 35-year old guy from a nice little town called Delft in The Netherlands. It's in-between Rotterdam and The Hague. I've got a girlfriend, a 3-year old kid and a second one scheduled for the 30th of December. I've also got a full-time job maintaining some legacy software (rather that than Java) in The Hague. All that combined leaves little time for Lisp hacking so if you're wondering why my projects progress so slowly (or why I take a long time to reply to an e-mail): here's why :-) CL and games have always seemed a good combination to me and I started with cl-sdl in 2001[1]. Although after Matthew Danish took over I think they switched to some Finnish guy's code. AFAIK it is not maintained anymore and you're better off with Lispbuilder-SDL. (This is in reply to an earlier message I saw in this list's archives.) Currently my main project is Okra[2] which are CL bindings to the Ogre[3] 3D engine (which is just a rendering engine, not a game engine!). Ogre has been getting popular lately and there are several commercial games released using it, off the top of my head: Torchlight, Zombie Driver and Sacraboar. While you'll often see me ask questions about Windows on #lisp or complaining about it on my blog, I actually hate the OS with a passion and my main development environment is and always has been Unix. That's about it. [1] http://groups.google.com/group/comp.lang.lisp/browse_thread/thread/23202754… [2] http://common-lisp.net/project/okra/ [3] http://www.ogre3d.org/

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[lisp-game-dev] XIOBREAK bugs
by David O'Toole 05 Dec '09

05 Dec '09

There are timing related bugs that make this game too fast or too slow on some peoples setups. Please let me know if this happens to you.

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[lisp-game-dev] [FLGC09] My compo entry: XIOBREAK
by David O'Toole 05 Dec '09

05 Dec '09

I didn't achieve as much as I'd like within the 7-day time limit, but here is my entry. It's called XIOBREAK, and like some of the other entries I've heard about, it's a Breakout clone. My spin on the genre involves changing colors and sounds. When blocks break, small particles of light and sound are randomly triggered to create changing "synaesthesia bursts" sort of like in the Sega game Rez. The animations and music also change depending on one of three distinct visual themes: "plasma", "psi", and "chi". The chi theme features a vocal sample of my friend Ari Charbonneau, processed and re-triggered to create a chorus of distant voices. A decent PC is recommended. There is a bug that prevents you from winning, so if you break all the blocks (or get bored with the theme) press escape and the colors/theme will be changed. Keyboard and joystick control are provided. If you use a joystick, just mash around till you figure it out, otherwise follow the onscreen keyboard instructions. After the compo is over I'd like to add things to XIOBREAK and fix its many bugs, but I'll leave it untouched in its 7-day state for now, so that others can complete their entries. Libraries used: LISPBUILDER-SDL XE2 Game Engine http://dto.github.com/notebook/xe2-reference.html Applications used: GNU Emacs Audacity Milkytracker Hexter Binaries for Linux are at http://github.com/dto/xe2/downloads Building from scratch instructions: http://github.com/dto/xe2/blob/master/INSTALL Windows and Mac binaries coming soon.

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[lisp-game-dev] Compo update
by David O'Toole 05 Dec '09

05 Dec '09

I've almost finished my 7-day compo entry XIOBREAK, a simple breakout clone with a few twists of my own. Anyone else working on something? You may not think you have time, but you can copy and tweak the RLX example game if you want to experiment with something quickly... see http://dto.github.com/notebook/xe2-reference.html

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lisp-game-dev December 2009