JEDI FIGHTER is a mod inspired by classic fighting games (SNK's Last Blade I & II, Capcom's Street Fighter II) for Raven Software's latest Star Wars first-person shooter, Star Wars: Jedi Knight: Jedi Academy. Embroiled in a battle between GOOD versus EVIL, you are a fearsome lightsaber fighter forced to use your training to take on legendary warriors and, perhaps, decide the FATE OF THE GALAXY...
Download the latest release (beta 2) here!
You fight from a side view perspective in one-on-one matches against other humans online or against really terrible bots (AI players won't make good opponents until beta 3). A cinematic camera keeps an eye on the action.
Fight your opponent by using any of 10 characters across 5 arenas, where each character harnesses the force and saber combat in a unique way, while the arenas showcase various settings from the Star Wars universe.
Gamepads are supported and how it was meant to be played!
There are 3 basic attacks, plus block and the 4 directions, which you will use to perform combos:
5) horizontal attack
6) vertical attack
7) alternate attack (kicks or force powers)
Patience, young Skywalker. Performing combos is not easy, and will take some practice to get a feel for the input system. The on-screen help in beta 2 shows the required buttons which must be pressed in sequence (but not simultaneously) in order to make a special move happen.
There are 2 prerequisites to installing JEDI FIGHTER.
Now you should install JEDI FIGHTER itself by following these 3 simple steps:
HOW TO PLAY \ START A SERVER
Starting the JEDI FIGHTER CLIENT is pretty straightforward... Run the JF_CLIENT_OJK.BAT file in your Jedi Academy\gamedata\jedifighter directory OR do it from the commandline (ONLY IF YOU KNOW WHAT YOU ARE DOING):
openjk.x86 +set sv_pure 1 +set fs_basepath "D:/games/LucasArts/Star Wars Jedi Knight Jedi Academy/GameData" +set fs_game jedifighter +set g_gametype 5
When you first run JEDI FIGHTER, you should go into the CONTROLS menu to bind your controls and the SETUP menu to set your video options. All kinds of crazy resolutions are supported, but if you want to customize it, start typing your own width and height! You should set your video options to the highest
resolution your display can support and enjoy modern PCs playing 15 year old games at ridiculous speeds.
To join a game, go to the main menu and Play -> Join a Game. Make sure the filtering is set to "Internet" (or "Local" for LAN games), "All", and "Jedi Fighter". Get a new server list. Click on the server and then click Join! (The mapname should start with jf_ or jf2_ if it's a Jedi Fighter server, otherwise you
might end up trying to connect to an OJP Enhanced server).
Starting the JEDI FIGHTER LISTEN SERVER is simple. Run the JF_CLIENT_OJK.BAT file and then go to the main menu and choose Play -> Create a Game.
Starting the JEDI FIGHTER DEDICATED SERVER is also simple. First edit jedifighter\server.cfg and AT LEAST modify the RCON password. Then run the JF_DED_OJK.BAT file. People will need to vote for a particular map or cycling to the next map.
An SDK and help documentation for people extending the base content in JEDI FIGHTER will be made available shortly. For now, please feel free to extract all of the .pk3 files and poke around in the files. Of particular interest will be the jedifighter\fighters\ directory and it's subdirectories, and the maps\mp
directory, which contains all the .map source files. If you want to make a map, you'll notice that there are new spawn entities, and that the fighting plane needs to be axis aligned in a particular way. You'll see this in all of the .map files and should stick to it or you are on your own. Documentation for most of
this will be available soon, but some of it should be intuitive.
If you have complaints, comments, or suggestions, feel free to send them to me at adnan.f.zafar @ gmail.com.
Finally, thanks for trying JEDI FIGHTER beta 2!
All trademarks are the property of their respective owners.
JEDI FIGHTER beta 2 was released late January to much success and acclaim. It even hit #2 on the moddb top 100 for one day! Thanks to all of those who downloaded it and helped spread the word.
And a special thanks to moddb for hosting it and putting it on the front page. We modders really appreciate having moddb as a launch platform for our creations!
Tentative release in April! No more randomly jumping bots! Yay!
The main objectives with the AI are to:
The general approach for the AI is going to be using one multi-layer perceptron (MLP, a type of neural network) per fighter. Basically, an MLP takes inputs, processes them, and produces outputs based on how it has been trained to respond to inputs. The outputs will be a set of numbers from 0 to 1, where there will be one number per move or block. The number with the highest value will correspond to the move that gets chosen. Since each fighter has different moves, there will be one MLP per fighter.
I chose MLPs because:
For each major system in Jedi Fighter, I try come up with a few concepts and will choose between them based on feasibility, simplicity, and maintainability. This is usually done on paper OR through the implementation of minimum viable products (MVPs) where it's practical in my free time.
The AI is going to get a few MVPs to experiment with the key components of training and decision making. I'll be sharing updates on those MVPs as time allows.
Neural networks use training data to optimize the network into generating the desired output for a range of input conditions.
This video shows the bots executing their moves randomly and sampling inputs (fighter and opponent health, position, and velocity) right before the move and immediately afterwards. The change in health (and other parameters) will be used to indicate the effectiveness of the move. This will be done many thousands of times per character to create a reasonably sized dataset to train the AI.
Three things evident from this experiment:
JEDI FIGHTER beta 3 is coming in April!
For now, try out JEDI FIGHTER beta 2 and give me your feedback on the forums!
You'll need to install Jedi Academy, the OpenJK engine, and Jedi Fighter beta 2 to play.
Check out these installation instructions to get started.
Run JF_CLIENT_OJK.BAT in your Jedi Academy\gamedata\jedifighter directory to get started. Configure your controls, max out your video settings and resolution, and have fun!
If you have any issues, check out the detailed instructions in jedifighter\_README_.txt. If you still have problems, feel free to post in the forums.
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