So I'm working on something that's going to be a rather large undertaking. I've figured out how to do a "bare-bones" kind of dice hud that just rolls a basic 2-20. However now I need to go to the next step.
I want to make a roleplaying system dice hud for my sim. For this I want it so that when you click the HUD you get a menu, that lists all the skills in my system. When you click the skill it refrences a notecard in the Hud to do some minor math before displaying the result: IE.
There's a normal 2d6, 2d8, 2d10, 2d12, 2d16, 2d20 ((Whatever basic configuration that always rolls a standard die))
Though I want it to look into a note card to add in a character's "STATS" and "SKILL LEVEL"
So say they want to hit someone with a sword?
I want the Hud to generate a random value between 2 and 12, then add in the character's Strength, speed, perception stats as well as their sword skill level.
If I could see the basics of HOW to start this I can then move forward from there.
You cannot write into a note card using a LSL (or other) script.
If you want to roll a dice, simply use llRound( llFrand ); or integer x = (integer)llFrand(19)+1;
You could use a webserver to save information like that. Just google free web space, you're gonna find a lot. SL's HTTP communication is, let's say, ok.
This is kind of a big project. If you don't know where/how to start you should hire a professional. Just look for groups in-world. You're going to find a lot of people willing to help you :)
In LSL you cannot write in a notecard, however if you try OpenSim you can use that function:
osMakeNotecard(string notecardName, list contents);
But that is only available in OpenSim, see osMakeNotecard.
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I have seen some references to the Auto-learn function of Watson Dialog but I can't find coverage in any of the documentation. Can you point me to a source of information on how best to use Auto-Learn?
Thank you for your feedback, we are always working to improve our documentation.
For your immediate benefit, auto-learn is a bit of a misleading name for a feature t, but the name has stuck.
Autolearn has become the "did you mean..." with four bullet points that shows when a user sends an input that has no direct matches.
A little history...at one time, we thought that if a user typed something, saw the did you mean... and clicked a link, their intial input must have meant the same thing as the one they clicked, the system should automatically remember that.
Imagine this:
"What are your credit card fees?"
Did you mean... 1. apply for a credit card 2. cancel a credit card 3. pay your bill
click apply for a credit card
The user was simply interested in that, but obviously the two DO NOT have the same meaning. So we realized thats a bad idea, the system will learn incorrectly. However, we still call it auto learn.
I'd like to write an application, which would imitate a player in an online game.
About the game: it is a strategy, where you can:
train your army (you have to have enough resources, then click on a unit, click train)
build buildings (mines, armories, houses,...)
attack enemies (select a unit, select an enemy, click attack)
transport resources between buildings
make researches (economics, military, technologic,...)
This is a simplified list and is just an example. Main thing is, that you have to do a lot of clicking, if you want to advance...
I allready have the 'navigational' part of the application (I used Watin library - http://watin.sourceforge.net/). That means, that I can use high level objects and manipulate them, for example:
Soldiers soldiers = Navigator.GetAllSoldiers();
soldiers.Move(someLocation);
Now I'd like to take the next step - write a kind of AI, which would simulate my gaming style. For this I have two ideas (and I don't like either of them):
login to the game and then follow a bunch of if statements in a loop (check if someone is attacking me, check if I can build something, check if I can attack somebody, loop)
design a kind of scripting language and write a compiler for it. This way I could write simple scripts and run them (Login(); CheckForAnAttack(); BuildSomething(); ...)
Any other ideas?
PS: some might take this as cheating and it probably is, but I look on this as a learning project and it will never be published or reselled.
A bunch of if statements is the best option if the strategy is not too complicated. However, this solution does not scale very well.
Making a scripting language (or, domain specific language as one would call that nowadays) does not buy you much. You are not going to have other people create AI agents are you? You can better use your programming language for that.
If the strategy gets more involved, you may want to look at Bayesian Belief Networks or Decision Graphs. These are good at looking for the best action in an uncertain environment in a structured and explicit way. If you google on these terms you'll find plenty of information and libraries to use.
Sounds like you want a finite state machine. I've used them to various degrees of success in coding bots. Depending on the game you're botting you could be better off coding an AI that learns, but it sounds like yours is simple enough not to need that complexity.
Don't make a new language, just make a library of functions you can call from your state machine.
Most strategy game AIs use a "hierarchical" approach, much in the same way you've already described: define relatively separate domains of action (i.e. deciding what to research is mostly independent from pathfinding), and then create an AI layer to handle just that domain. Then have a "top-level" AI layer that directs the intermediate layers to perform tasks.
How each of those intermediate layers work (and how your "general" layer works) can each determined separately. You might come up with something rather rigid and straightforward for the "What To Research" layer (based on your preferences), but you may need a more complicated approach for the "General" layer (which is likely directing and responding to inputs of the other layers).
Do you have the sourcecode behind the game? If not, it's going to be kind of hard tracing the positions of each CPU you're (your computer in your case) is battling against. You'll have to develop some sort of plugin that can do it because from the sound of it, you're dealing with some sort of RTS of some sort; That requires the evaluation of a lot of different position scenarios between a lot of different CPUs.
If you want to simulate your movements, you could trace your mouse using some WinAPI quite easily. You can also record your screen as you play (which probably won't help much, but might be of assistance if you're determined enough.).
To be brutally honest, what you're trying to do is damn near impossible for the type of game you're playing with. You didn't seem to think this through yet. Programming is a useful skill, but it's not magic.
Check out some stuff (if you can find any) on MIT Battlecode. It might be up your alley in terms of programming for this sort of thing.
First of all I must point out that this project(which only serves educational purposes), is too large for a single person to complete within a reasonable amount of time. But if you want the AI to imitate your personal playing style, another alternative that comes to mind are neural networks: You play the game a lot(really a lot) and record all moves you make and feed that data to such a network, and if all goes well, the AI should play roughly the same as you do. But I'm afraid this is just a third idea you won't like, because it would take a tremendeous amount of time to get it perfect.
In a project I'll be working on soon there will be a need to generate avatars. The generation process will be one of those where the user can select different heads, hairstyles, clothing, etc. Some items will also be unavailable at first and will have to be earned or purchased.
I already have a fair idea on how to do this, but since it is a nontrivial amount of code, it would be nice to see working examples of code. Ideally I could just take a script and integrate into my page, but just gathering ideas from other people would be good too.
I'll be working with PHP, but examples in other languages are welcome too.
Added: To clarify, I don't mean a random avatar generator (or one that generates an avatar based on some hash value). A random avatar generator is subtly different from what I have intented. In a random avatar generator the programmer-artist has a much greater say of what goes where. He can carefully pick out pieces that will not conflict with each other, and he can discard those that give him trouble.
In my case the avatar generator is more like this. The user chooses which head to use, which hairstyle to apply, which piece of clothing to use, etc. There are way more pieces there, with artists adding new ones every once in a while. It's much harder to test how pieces will or won't fit together. Sometimes more advanced blending is required (like a hat would have a part of it in front of hair, and part of it behind the hair). Etc.
[EDIT: Revised answer to updated question]
I think that it's primarily a matter of designing the parts accordingly. You have some basic forms (male, female, tall / small, etc.) for which you have stylesets (e.g. hair) designed to match and align perfectly. Solving this algorithmically instead is probably a bad choice in terms of workload and probably not necessary for non-animated figures.
However, maybe you'll need some additional alpha-channel/transparency masks or something for combining head, hair and hat.
Other than that, these parts would have to be combined layer for layer like Monster ID.
infernowebmedia.com
They sell a cheap and fully functional website code to make your own avatar site.
I have a course in my current semester in which I'm required to do a project on application of AI. I have decided to do this on game AI. I have 2 basic ideas: implementing an FPS bot(s) or implementing soccer AI.
I'm quiet a noob at AI right now, I've implemented basic pathfinding algos (A*, etc), and have studied about Finite state machines, some First Order logic, basic Neural Network stuff(Backpropagation ALgo), and am currently doing a course on Genetic Algorithms.
Our main focus is on the bot right now. Our plans include:
Each 'bot' would be implemented using a Finite State Machine (FSM), which would contain the possible states the bot could have; & the rules for the action/state changes that are going to take place when it receives an input.
In bot group movement, each bot would decide whether to strike, ways to strike; based on range, number of bots, existing fights using Neural Networks.
By using genetic algorithms the opponents next move could be anticipated based on repetitive moves.
Although I've programmed a few 2d games till now in my free time (like pacman, tetris, etc), I've never really gone into the 3d area. We will most probably be using a 3d engine.
We want to concentrate most of our energy on the AI part. We would like not to be bothered with unnecessary details about the animation/3d models, etc. For example, if we could find a framework which has functions like Moveright() which just moves the bot to the right, it would be really awesome.
My basic question is : is it too ambitious to go about it in the way we have planned, considering the duration of the project is abour 3 months? Should we go 3d and use a 3d game engine? is it easy to use such engines, if you have no experience with them before? If yes, what kind of engine would be suitable to our project?
I came accross another idea, given in the book AI Game programming by example, where the player would have a top down view of the bots. Would that way be more appropriate?
Thanks .. sorry about the length of the question .. it's just that my problem is a bit too specific.
My basic question is : is it too
ambitious to go about it in the way we
have planned, considering the duration
of the project is abour 3 months?
Yes -- but that's not necessarily a bad thing :)
Should we go 3d and use a 3d game
engine?
No. Mainly because you said:
We want to concentrate most of our
energy on the AI part.
Here's what I'd do, based on my experience (and knowing that, as a student, I often bit off way more than I could chew, too):
Make your simulation function irrespective of a graphical component. Have it publish "updates" to another layer, that consist of player and ball vectors. By doing so you'll be keeping your AI tasks separate from everything else, which means you have fewer bugs to worry about, and you can also unit test your underlying simulation much easier.
Take those "updates" and create your first "visualization" layer -- make it the simplest 2D representation possible. It could just be a stream of text lines: "Player 1 has the ball / Player 1 kicked ball at (30,40) with speed 20kph". That will be hard enough for your first pass since you'll be figuring out how to take data published by the simulation and doing something with it.
Your next visualization might add a 2D grid of ANSI graphics (think rogue-like) to actually show players and the ball moving. Your next one after that might be sprites. And so on. Note how you incrementally increase the complexity of your visualization... don't make your first step go to using a technology (3d graphics engine) you've never used before. (You'll never finish your project in that case.)
As for your questions about which route to take -- FSMs, NNs, GAs, top-down design -- you should rank your interest in them from most to least (along with the rest of your group) and then tackle them, in that order. You might consider doing one style for one team and a different design for the other team. You might want to make your FSM team play against a FSM team that's had an additional tweak done to it, in order to compare and contrast if you think your changes are actually being beneficial (you might be surprised and find out they make the team worse). Actually, that's where unit testing and splitting the simulation from the visualization come in very, very handy -- you should be able to "sim" as many games as you need to to get experimental results without worrying about graphics. You might even do it in batches overnight with scripts.
In general, my advice to you is this: break down your project into the tiniest pieces you can, and tackle them one at a time, so no matter where you're at when time runs out, you'll have something interesting to show off.
You could have a look at guntactyx, that's what I had to use when I did my AI unit at uni.
It takes care of all the display, physics, sound etc... for you, all you have to do is program your team of bots.
The API includes functions to make the bot move left or right, shoot, hear sounds (like gun shots) etc... and it comes with a few sample bots so you don't start from scratch.
Also, it's quite fun to watch your bots battling your friends' bots :)
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This isn't really a programming question, more of an ideas question. Bear with me.
My sister gave me a well-used Nokia N95. I don't really need it, but I wanted it to do some programming for it. It supports a few languages, of which I can do Python.
My question is this: what to do with it? If I think about it, it has a lot to offer: i can program the GPS, motion sensor, wireless internet, sound and visual capture; it has a lot of hard disk space, it plays sound and video and so on.
The combinations seem limitless. The way I see it, it is a device that is easily always on me, has access to a huge data repository (the internet, and my personal data in it) and can be aware if I'm sitting at home, at work, or moving about somewhere. It could basically read my google calendar to check if I should be somewhere I'm not -- perhaps give me the bus schedule to get to where I should be. It could check if it's close to my home and therefore my home PC bluetooth/wifi. Maybe grab my recent work documents from my desktop computer, along with the latest Daily Show, for the bus journey to work. It could check my library account to see if any of my books are due, and remind me to take them with me in the morning. Set up an alarm clock based on what shift I have marked in my google calendar.
Basically I have a device that can analyze my movements in time (calendars with my data etc) and space (gps, carrier cell ids). By proxy, it could identify context situations -- I can store my local grocery store gps coordinates or cell mast ids and it could remind me to bring coffee.
Like I said, the possibilities seem limitless, and therefore baffling. Does anyone else have these pseudofantastical yearnings to program something like this? Or any similar ideas? How could this kind of device integrate into -- and help -- your life?
I'm hoping we could do some brainstorming.
"Gotta Leave" - A reminder that figures out the bus time, how far you are from a stop on your bus and shows a countdown till you "Could" leave (green), "Should" Leave (yellow), "Must" leave (orange), and "Gotta Run to get there" (red).
As inputs it needs what bus number you want to ride. You turn it on, it finds you, finds your closest few bus stops, estimates your walking speed at 2/mph and calculates when you need to leave where you are to get to the bus with 5 minutes waiting or less.
You should just pick any one and implement it.
It doesn't matter where you start, more that you actually do start. Don't concentrate on the destination, take a step and see what the journey holds.
Do it for a laugh to start and your expectation will be set right for both when you do find your killer app and when you don't.
"Phone home" - an interface to report home if you send a message to your phone that it is lost / stolen. Must be a silent operation from the phone holder's perspective
Options:
Self destruct mode to save your data from prying eyes
Keep calling with it's location every 10 minutes until an unlock is sent indicating the phone is found.
This is the same problem I face with the android (albeit java instead of python). The potential is paralyzing :)
I'd recommend checking out what libraries have already been written for doing cool stuff on that phone, and then building off of them- It's a system that provides inspiration, direction, and a good head start. For instance, on the android side, I'm fooling around with "zxing", a library that lets you read barcodes via the cellphone's camera. That's it's own sub-universe of possibilities, but at least it gives me a direction to go. "do cool things with information about products physically nearby"
"Late for Work" - Determines if you are not at work, buzzes you with a reminder and preps the phone to call into the sick line. Could be used if you are going to be late as well.
Inputs: Your sick line number. Time you should be at work. Where your home is, where your work is
Optional:
Send a text message
Post to an online in/out board
If you are still at home, sound an alarm
If you are still at home, call in sick, if you are not at home sent a "I'm going to be late" message
Comedy Option:
- If you don't respond to ten alarms, dial 911
To add on to what others have said, come up with some kind of office-GPS (via WiFi maybe? Does it have WiFi?) and tell you when you need to go to a meeting.