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  • Checkers AI Algorithm

    - by John
    I am making an AI for my checkers game and I'm trying to make it as hard as possible. Here is the current criteria for a move on the hardest difficulty: 1: Look For A Block: This is when a piece is being threatened and another piece can be moved in behind it to protect it. Here is an example: Black Moves |W| |W| |W| |W| | | |W| |W| |W| |W| |W| | | |W| |W| | | | | |W| | | | | | | | | |B| | | | | |B| | | |B| |B| |B| |B| |B| |B| | | |B| |B| |B| |B| White Blocks |W| |W| |W| |W| | | |W| | | |W| |W| |W| |W| |W| |W| | | | | |W| | | | | | | | | |B| | | | | |B| | | |B| |B| |B| |B| |B| |B| | | |B| |B| |B| |B| 2: Move pieces out of danger: if any piece is being threatened, and a piece cannot block for that piece, then it will attempt to move out of the way. If the piece cannot move out of the way without still being in danger, the computer ignores the piece. 3: If the computer player owns any kings, it will attempt to 'hunt down' enemy pieces on the board, if no moves can be made that won't in danger the king or any other pieces, the computer ignores this rule. 4: Any piece that is owned by the computer that is in column 1 or 6 will attempt to go to a side. When a piece is in column 0 or 7, it is in a very strategic position because it cannot get captured while it is in either of these columns 5: It makes an educated random move, the move will not indanger the piece that is moving or any piece that is on the board. 6: If none of the above are possible it makes a random move. This question is not really specific to any language but if all examples could be in Java that would be great, considering this app is written in android. Does anyone see any room for improvement in this algorithm? Anything that would make it better at playing checkers?

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  • Unable to remove broken Exchange 2003 installation (SBS 2003)

    - by Austin ''Danger'' Powers
    We have a non-functional Exchange 2003 installation on our SBS 2003 server that I am trying to uninstall. So far we have never used, and will never use, Exchange on this server- all we need is to remove it from the system (as it is installed on a partition which we want to merge with the main data partition to increase network storage capacity). Attempting to remove it using Add/Remove Programs produces the following error: When doing a search in ADUC to see which users still have a mailbox associated with them, it seems to only be the domain administrator account: As the Exchange installation is broken, it is not possible to run either System Manager or Exchange 5.5 Administrator to make mailbox changes. How can I forcibly remove a mailbox (which does not need to be salvaged or backed up), to allow the uninstall of Exchange to proceed? Any ideas would be appreciated!

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  • Auto-responder rule in Outlook 2010 produces double signature (but only to certain emails)

    - by Austin ''Danger'' Powers
    I have set up an auto-responder in Outlook 2010 using a custom template, as a staff member will be on vacation for 6 weeks. It works perfectly, apart from the fact certain people receive two signatures at the bottom of the message instead of one. When reviewing the "sent" folder, there is no sign of double signatures. In the custom template, there is only 1 copy of the signature. Signatures are set to be applied automatically to new messages or replies- however, if I remove the signature from the template, then it seems no one receives a response with the signature. People sending from Hotmail accounts do not receive a duplicate signature. Gmail users do see a duplicate signature. Does anyone have any idea what could be causing this?

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  • Problems when pasting Outlook 2010 signature logo into message body

    - by Austin ''Danger'' Powers
    Whenever I paste my company logo into a message in Outlook 2010, I run into a variety of complications and anomalies. The dimensions of my original logo image are 315x174 (source image is a PNG file). I am scaling this image down in Photoshop CS6 to a variety of smaller sizes for testing my Outlook signature (300x166, 250x138, 200x110,150x83 and 100x55 pixels). 300x166 = no distortion. This looks the same as in Photoshop (but far too large to use in my signature). 250x130 = distorted (gets stretched much wider by Outlook when pasting into message body). 200x110 = looks reasonable, but seems to have been scaled to a different size (smaller) by Outlook for no obvious reason. 150x83 = for some reason, this is scaled by Outlook to the exact same size that 200x110 was scaled to. In fact, a large range of similar dimensions are scaled to the exact same image size by Outlook. This is very frustrating. Why is this happening and what can be done to prevent it? 100x55 = when pasting my logo from Photoshop to Outlook with these dimensions all that happens is the cursor jumps forwards about an inch on the screen, leaving a blank space where the image was supposed to go. Any advice would be much appreciated.

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  • "Empty" Outlook 2010 address book (despite having over 1,000 contacts)

    - by Austin ''Danger'' Powers
    I am in the process of migrating our users to Office 365. After adding the Exchange Online account for a user in their Outlook 2010 client (and importing their old emails), I then copy their contacts from their old address book into the new one. For some users, this works perfectly - all their original contacts immediately appear in their Office 365 address book as expected. Unfortunately, many of our users see their contacts only when looking in the "Contacts" tab. They get the message: "Your search yielded no results" when drilling down to their Office 365 contact list in the Address Book window. I have been able to reproduce this problem on multiple PCs and cannot see what sets them apart from the ones which work properly. Does anyone have any idea what could be causing this?

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  • PHP Form - Empty input enter this text - Validation

    - by James Skelton
    No doubt very simple question for someone with php knowledge. I have a form with a datepicker, all is fine when a user has selected a date the email is send with: Date: 2012 04 10 But i would like if the user has skipped this and left blank (as i have not made this required) to send as: Date: Not Entered (<-- Or something) Instead at the minute of course it reads: Date: Form input <input type="text" class="form-control" id="datepicker" name="datepicker" size="50" value="Date Of Wedding" /> This is the validator $(document).ready(function(){ //validation contact form $('#submit').click(function(event){ event.preventDefault(); var fname = $('#name').val(); var validInput = new RegExp(/^[a-zA-Z0-9\s]+$/); var email = $('#email').val(); var validEmail = new RegExp(/^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/); var message = $('#message').val(); if(fname==''){ showError('<div class="alert alert-danger">Please enter your name.</div>', $('#name')); $('#name').addClass('required'); return;} if(!validInput.test(fname)){ showError('<div class="alert alert-danger">Please enter a valid name.</div>', $('#name')); $('#name').addClass('required'); return;} if(email==''){ showError('<div class="alert alert-danger">Please enter an email address.</div>', $('#email')); $('#email').addClass('required'); return;} if(!validEmail.test(email)){ showError('<div class="alert alert-danger">Please enter a valid email.</div>', $('#email')); $('#email').addClass('required'); return;} if(message==''){ showError('<div class="alert alert-danger">Please enter a message.</div>', $('#message')); $('#message').addClass('required'); return;} // setup some local variables var request; var form = $(this).closest('form'); // serialize the data in the form var serializedData = form.serialize(); // fire off the request to /contact.php request = $.ajax({ url: "contact.php", type: "post", data: serializedData }); // callback handler that will be called on success request.done(function (response, textStatus, jqXHR){ $('.contactWrap').show( 'slow' ).fadeIn("slow").html(' <div class="alert alert-success centered"><h3>Thank you! Your message has been sent.</h3></div> '); }); // callback handler that will be called on failure request.fail(function (jqXHR, textStatus, errorThrown){ // log the error to the console console.error( "The following error occured: "+ textStatus, errorThrown ); }); }); //remove 'required' class and hide error $('input, textarea').keyup( function(event){ if($(this).hasClass('required')){ $(this).removeClass('required'); $('.error').hide("slow").fadeOut("slow"); } }); // show error showError = function (error, target){ $('.error').removeClass('hidden').show("slow").fadeIn("slow").html(error); $('.error').data('target', target); $(target).focus(); console.log(target); console.log(error); return; } });

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  • Graphing new users by date in a Rails app using Seer

    - by Danger Angell
    I'd like to implement a rolling graph showing new users by day over the last 7 days using Seer. I've got Seer installed: http://www.idolhands.com/ruby-on-rails/gems-plugins-and-engines/graphing-for-ruby-on-rails-with-seer I'm struggling to get my brain around how to implement. I've got an array of the Users I want to plot: @users = User.all( :conditions = {:created_at = 7.days.ago..Time.zone.now}) Can't see the right way to implement the :data_method to roll them up by created_at date. Anyone done this or similar with Seer? Anyone smarter than me able to explain this after looking at the Seer sample page (linked above)?

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  • How to I get rid of these double quotes?

    - by Danger Angell
    I'm using ym4r to render a Google Map. Relevant portion of Controller code: @event.checkpoints.each do |checkpoint| unless checkpoint.lat.blank? current_checkpoint = GMarker.new([checkpoint.lat, checkpoint.long], :title => checkpoint.name, :info_window => checkpoint.name, :icon => checkpoint.discipline.icon, :draggable => false ) @map.overlay_init(current_checkpoint) end It's this line that is hanging me up: :icon => checkpoint.discipline.icon, Using this to render the map in the view: <%= @map.to_html %> <%= @map.div(:width => 735, :height => 450, :position => 'relative') %> The javascript that is puking looks like this: icon : "mtn_biking" and I need it looking like this: icon : mtn_biking This is the HTML generated: <script type="text/javascript"> var mtn_bike = addOptionsToIcon(new GIcon(),{image : "/images/map/mtn_bike.png",iconSize : new GSize(32,32),iconAnchor : new GPoint(16,32),infoWindowAnchor : new GPoint(16,0)});var map; window.onload = addCodeToFunction(window.onload,function() { if (GBrowserIsCompatible()) { map = new GMap2(document.getElementById("map")); map.setCenter(new GLatLng(37.7,-97.3),4);map.addOverlay(addInfoWindowToMarker(new GMarker(new GLatLng(34.9,-82.22),{icon : "mtn_bike",draggable : false,title : "CP1"}),"CP1",{})); map.addOverlay(addInfoWindowToMarker(new GMarker(new GLatLng(35.9,-83.22),{icon : "flat_water",draggable : false,title : "CP2"}),"CP2",{})); map.addOverlay(addInfoWindowToMarker(new GMarker(new GLatLng(36.9,-84.22),{icon : "white_water",draggable : false,title : "CP3"}),"CP3",{}));map.addControl(new GLargeMapControl()); map.addControl(new GMapTypeControl()); } }); </script> the issue is the double quotes in: icon : "mtn_bike" icon : "flat_water" icon : "white_water" I need a way to get rid of those double quotes in the generated HTML

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  • Graphing new users by date with Seer

    - by Danger Angell
    I'd like to implement a rolling graph showing new users by day over the last 7 days using Seer. I've got Seer installed: http://www.idolhands.com/ruby-on-rails/gems-plugins-and-engines/graphing-for-ruby-on-rails-with-seer I'm struggling to get my brain around how to implement. I've got an array of the Users I want to plot: @users = User.all( :conditions = {:created_at = 7.days.ago..Time.zone.now}) Can't see the right way to implement the :data_method to roll them up by created_at date. Anyone done this or similar with Seer? Anyone smarter than me able to explain this after looking at the Seer sample page (linked above)?

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  • How do I set default search conditions with Searchlogic?

    - by Danger Angell
    I've got a search form on this page: http://staging-checkpointtracker.aptanacloud.com/events If you select a State from the dropdown you get zero results because you didn't select one or more Event Division (checkboxes). What I want is to default the checkboxes to "checked" when the page first loads...to display Events in all Divisions...but I want changes made by the user to be reflected when they filter. Here's the index method in my Events controller: def index @search = Event.search(params[:search]) respond_to do |format| format.html # index.html.erb format.xml { render :xml => @events } end end Here's my search form: <% form_for @search do |f| %> <div> <%= f.label :state_is, "State" %> <%= f.select :state_is, ['AK','AL','AR','AZ','CA','CO','CT','DC','DE','FL','GA','HI','IA','ID','IL','IN','KS','KY','LA','MA','MD','ME','MI','MN','MO','MS','MT','NC','ND','NE','NH','NJ','NM','NV','NY','OH','OK','OR','PA','RI','SC','SD','TN','TX','UT','VA','VT','WA','WI','WV','WY'], :include_blank => true %> </div> <div> <%= f.check_box :division_like_any, {:name => "search[:division_like_any][]"}, "Sprint", :checked => true %> Sprint (2+ hours)<br/> <%= f.check_box :division_like_any, {:name => "search[:division_like_any][]"}, "Sport" %> Sport (12+ hours)<br/> <%= f.check_box :division_like_any, {:name => "search[:division_like_any][]"}, "Adventure" %> Adventure (18+ hours)<br/> <%= f.check_box :division_like_any, {:name => "search[:division_like_any][]"}, "Expedition" %> Expedition (48+ hours)<br/> </div> <%= f.submit "Find Events" %> <%= link_to 'Clear', '/events' %> <% end %>

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  • User input being limited to the alphabet in python

    - by Danger Cat
    I am SUPER new to programming and have my first assignment coming up in python. I am writing a hangman type game, where users are required to guess the word inputted from the other user. I have written most of the code, but the only problem I am having is when users have to input the word, making sure it is only limited to the alphabet. The code I have so far is : word = str.lower(raw_input("Type in your secret word! Shhhh... ")) answer = True while answer == True: for i in range(len(word)): if word[i] not in ("abcdefghijklmnopqrstuvwxyz"): word = raw_input("Sorry, words only contain letters. Please enter a word ") break else: answer = False This works while I input a few tries, but eventually will either exit the loop or displays an error. Is there any easier way to use this? We've really only covered topics up to loops in class, and break and continue are also very new to me. Thank you! (Pardon if the code is sloppy, but as I said I am very new to this....)

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  • How to assign the value of document.cookie to your browser cookies?

    - by Ricket
    I'm a developer (and therefore a tester) of a website. Our site accepts any JavaScript or HTML from an user but I haven't been successful in explaining the danger of it, as obvious as it is. So I would like to prove it by logging in as my boss to prove to him that there is definitely a real danger here. I think this will put down any of his arguments and let us move onto filtering content like this. (note this question is not about filtering, or other suggestions on JavaScript tricks) I already know how to steal the value of the document.cookie variable with AJAX and a PHP file, but once you have that string of name=value;name=value;..., how do you apply it to your own browser? This is programming related because I am asking about tools which will help me debug my web program.

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  • Seven SEO Mistakes to Avoid

    SEO seems relatively easy at first, but danger lurks around every corner. One false step and all of your SEO work vanishes into a de-indexing or the dreaded Google sandbox. In this article, we'll explore the seven SEO mistakes to avoid.

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  • How to implement an intelligent enemy in a shoot-em-up?

    - by bummzack
    Imagine a very simple shoot-em-up, something we all know: You're the player (green). Your movement is restricted to the X axis. Our enemy (or enemies) is at the top of the screen, his movement is also restricted to the X axis. The player fires bullets (yellow) at the enemy. I'd like to implement an A.I. for the enemy that should be really good at avoiding the players bullets. My first idea was to divide the screen into discrete sections and assign weights to them: There are two weights: The "bullet-weight" (grey) is the danger imposed by a bullet. The closer the bullet is to the enemy, the higher the "bullet-weight" (0..1, where 1 is highest danger). Lanes without a bullet have a weight of 0. The second weight is the "distance-weight" (lime-green). For every lane I add 0.2 movement cost (this value is kinda arbitrary now and could be tweaked). Then I simply add the weights (white) and go to the lane with the lowest weight (red). But this approach has an obvious flaw, because it can easily miss local minima as the optimal place to go would be simply between two incoming bullets (as denoted with the white arrow). So here's what I'm looking for: Should find a way through bullet-storm, even when there's no place that doesn't impose a threat of a bullet. Enemy can reliably dodge bullets by picking an optimal (or almost optimal) solution. Algorithm should be able to factor in bullet movement speed (as they might move with different velocities). Ways to tweak the algorithm so that different levels of difficulty can be applied (dumb to super-intelligent enemies). Algorithm should allow different goals, as the enemy doesn't only want to evade bullets, he should also be able to shoot the player. That means that positions where the enemy can fire at the player should be preferred when dodging bullets. So how would you tackle this? Contrary to other games of this genre, I'd like to have only a few, but very "skilled" enemies instead of masses of dumb enemies.

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  • Do best practices to avoid vendor lock-in exist?

    - by user1598390
    Is there a set of community approved rules to avoid vendor lock-in ? I mean something one can show to a manager or other decision maker that is easy to understand and easily verifiable. Are there some universally accepted set of rules, checklist or conditions that help detect and prevent vendor lock-in in an objective, measurable way ? Have any of you warned a manager about the danger of vendor lock-in during the initial stages of a project ?

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  • Pathfinding for fleeing

    - by Philipp
    As you know there are plenty of solutions when you wand to find the best path in a 2-dimensional environment which leads from point A to point B. But how do I calculate a path when an object is at point A, and wants to get away from point B, as fast and far as possible? A bit of background information: My game uses a 2d environment which isn't tile-based but has floating point accuracy. The movement is vector-based. The pathfinding is done by partitioning the game world into rectangles which are walkable or non-walkable and building a graph out of their corners. I already have pathfinding between points working by using Dijkstras algorithm. The use-case for the fleeing algorithm is that in certain situations, actors in my game should perceive another actor as a danger and flee from it. The trivial solution would be to just move the actor in a vector in the direction which is opposite from the threat until a "safe" distance was reached or the actor reaches a wall where it then covers in fear. The problem with this approach is that actors will be blocked by small obstacles they could easily get around. As long as moving along the wall wouldn't bring them closer to the threat they could do that, but it would look smarter when they would avoid obstacles in the first place: Another problem I see is with dead ends in the map geometry. In some situations a being must choose between a path which gets it faster away now but ends in a dead end where it would be trapped, or another path which would mean that it wouldn't get that far away from the danger at first (or even a bit closer) but on the other hand would have a much greater long-term reward in that it would eventually get them much further away. So the short-term reward of getting away fast must be somehow valued against the long-term reward of getting away far. There is also another rating problem for situations where an actor should accept to move closer to a minor threat to get away from a much larger threat. But completely ignoring all minor threats would be foolish, too (that's why the actor in this graphic goes out of its way to avoid the minor threat in the upper right area): Are there any standard solutions for this problem?

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  • What best practices exist to avoid vendor lock-in?

    - by user1598390
    Is there a set of community approved rules to avoid vendor lock-in? I mean something one can show to a manager or other decision maker that is easy to understand and easily verifiable. Are there some universally accepted set of rules, checklist or conditions that help detect and prevent vendor lock-in in an objective, measurable way? Have any of you warned a manager about the danger of vendor lock-in during the initial stages of a project?

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  • What is the Need of Website Development?

    In the corporate world, the danger of not having a strong web presence cannot be imagined by the businesses. Every business needs to be up to date, to be successful and boost up their business; it needs to have a place in the World Wide Web.

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  • Interview: Eben Moglen - Freedom vs. The Cloud Log

    <b>The H Open:</b> "Free software has won: practically all of the biggest and most exciting Web companies like Google, Facebook and Twitter run on it. But it is also in danger of losing, because those same services now represent a huge threat to our freedom..."

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  • Mozilla sort un SDK pour JetPack, la révolution est en marche dans le développement des extensions d

    Mozilla sort un SDK pour JetPack La révolution dans le développement des extensions de Firefox est en marche La Fondation Mozilla est consciente que l'arrivée de Chrome et de ses extensions - visiblement plus simples à créer - représente un danger pour sa communauté de développeurs. Elle n'a certes pas lancé le projet pour cela, mais JetPack devrait cependant l'aider à rester dans la course et à conserver son attrait. Pour mémoire JetPack est un pr...

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  • Why did this command ":(){ :|: & };:" make my system lag so bad I had to reboot?

    - by blade19899
    Danger! Do not run this command to "test" it unless you are prepared for a crash and/or force-rebooting your system I was in my Virtualbox running 12.04 trying to compile an app, and while waiting I happened to chance upon a forum where a comment said: Try :(){ :|: & };: Fun, too, and doesn't need root. Without thinking I ran it in my gnome-terminal it made my 12.04 virtualbox lag so badly I had to shut it down. My question is what does this command do? :(){ :|: & };:

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  • Why did the command ":(){ :|: & };:" make my system lag so badly I had to reboot?

    - by blade19899
    Danger! Do not run this command to "test" it unless you are prepared for a crash and/or force-rebooting your system I was in my Virtualbox running 12.04 trying to compile an app, and while waiting I happened to chance upon a forum where a comment said: Try :(){ :|: & };: Fun, too, and doesn't need root. Without thinking I ran it in my gnome-terminal it made my 12.04 virtualbox lag so badly I had to shut it down. My question is what does this command do? :(){ :|: & };:

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  • What is the Need of Website Development?

    In the corporate world, the danger of not having a strong web presence cannot be imagined by the businesses. Every business needs to be up to date, to be successful and boost up their business; it needs to have a place in the World Wide Web.

    Read the article

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