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  • How to factorize code in Unreal Kismet (i.e. "Material Function"s for Kismet)

    - by Georges Dupéron
    In the Unreal Development Kit, when using the Material Editor, one can factorize frequently-used groups of nodes by creating a Material Function (content Browser ? right-click ? new matrial function, IIRC). When defining the behaviour of some actor in Kismet, one can easily have a dozen nodes involved. If I have many actors that share the same behaviour, then I'll copy-paste these nodes, and change the variables so they point to the other actors. This leads to inconsistencies (a modification in the behaviour of an actor isn't propagated in the copy-pasted nodes), complexity (you end up with hundreds of nodes), and generally useless effort. My question is : Can I create a "kismet function", just like a material function ? Note: I'd rather avoid using UnrealScript. I don't even know where to type UnrealScripts, don't know where the documentation is and more generally don't have enough time to invest in learning UnrealScript. This "kismet function" feature must be usable by graphists (with little programming knowledge). If a (simple) script suffices to add this feature in the Kismet editor, so that one can create several "functions" without using UnrealScript, then fine, but I don't really want to have to write a script each time I want to factorize a few nodes. Thanks for any information !

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  • How to stay creative when going through tough emotional times (divorce, family death, etc)? [closed]

    - by gaearon
    Hi everyone. I believe this is not a duplicate of motivation question because I want to especially emphasize the emotional breakdown. You may conquer lack of motivation by working harder and getting through the dip, however this was not the case when I was separating with my girlfriend. I actually liked the project, it was (and it still is!) my first programming job at an amazing workplace and I wasn't being pressured in any way but I found myself absolutely unable to code, blankly staring at the screen, my thoughts disorganized, the feeling of emptiness all in my chest. I could perform some straightforward coding but anything that involves creative thinking, designing abstractions, solving new problems and, worst of all, fixing bugs in legacy code, completely wiped out my brain to the point I started avoiding work, which I never have done before. Coffee only used to make it worse. Eventually I got over that, and I remember the happy day I solved a problem elegantly and thought—hell, first time in a month! Thankfully the project wasn't top priority and I had the time to catch up. I wonder now, was there any other way to boost my productivity back then? I bet people would say I should've taken a break—and I think I really should have—but what if I needed the money? Didn't want to lose my job? Are there any ways to trick your brain into being creative despite emotional losses? From your experience, would it be worth talking to my boss, collegues?

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  • Using a random string to authenticate HMAC?

    - by mrwooster
    I am designing a simple webservice and want to use HMAC for authentication to the service. For the purpose of this question we have: a web service at example.com a secret key shared between a user and the server [K] a consumer ID which is known to the user and the server (but is not necessarily secret) [D] a message which we wish to send to the server [M] The standard HMAC implementation would involve using the secret key [K] and the message [M] to create the hash [H], but I am running into issues with this. The message [M] can be quite long and tends to be read from a file. I have found its very difficult to produce a correct hash consistently across multiple operating systems and programming languages because of hidden characters which make it into various file formats. This is of course bad implementation on the client side (100%), but I would like this webservice to be easily accessible and not have trouble with different file formats. I was thinking of an alternative, which would allow the use a short (5-10 char) random string [R] rather than the message for autentication, e.g. H = HMAC(K,R) The user then passes the random string to the server and the server checks the HMAC server side (using random string + shared secret). As far as I can see, this produces the following issues: There is no message integrity - this is ok message integrity is not important for this service A user could re-use the hash with a different message - I can see 2 ways around this Combine the random string with a timestamp so the hash is only valid for a set period of time Only allow each random string to be used once Since the client is in control of the random string, it is easier to look for collisions I should point out that the principle reason for authentication is to implement rate limiting on the API service. There is zero need for message integrity, and its not a big deal if someone can forge a single request (but it is if they can forge a very large number very quickly). I know that the correct answer is to make sure the message [M] is the same on all platforms/languages before hashing it. But, taking that out of the equation, is the above proposal an acceptable 2nd best?

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  • Install Windows7 on drive with Ubuntu 12.04 already on. Is my plan good?

    - by John F
    I have Ubuntu 12.04 working fine, but need W7 occasionally. I just wanted to check that my plan for installing would work? Any help appreciated. Current partitions are: Partition....@ File System @ Mount Point @ Size.....@ Used.....@ Flags /dev/sda1....@ ext4........@ /ext4a......@ 37 GiB...@ 776 MiB..@ boot /dev/sda2....@ extended....@.............@ 122 GiB..@ -........@ ./dev/sda5...@ ext4........@ / ..........@ 37 GiB...@ 6 GiB....@ .unallocated @ unallocated @.............@ 7 GiB....@ - ...... @ ./dev/sda6 ..@ ext4........@ /home.......@ 77 GiB...@ 32 GiB...@ .unallocated @ unallocated @.............@ 65 GiB...@ - .......@ /dev/sda3...@ linux-swap..@.............@ 7 GiB....@ - .......@ My plan is to: - boot to ubuntu from USB ISO - change sda1 to NTFS - install W7 to sda1 - use the "Master Boot Record repair" utility to configure dual boot so I can see my original ubuntu installation as well as W7. Have I missed something? I'm concerned as to what the 776MB is that will be overwritten by the change to NTFS. It seems large for just the MBR? Would also appreciate it if anyone can explain what sda5 and 6 are being used for? Is sda5 Ubuntu and sda6 my data? Thanks in advance.

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  • Windows Server 2003: Remapping external domain

    - by Chuck Harmston
    We're playing a going-away prank on a coworker, and would like to use a rule in our internal DNS server to redirect techcrunch.com to point at one of our internal development servers. Basically, I'd like to accomplish the same thing as adding a line to a Linux /etc/hosts file, only for the entire network. I have access to our DNS server. How would you go about doing this? I created an entry in the reverse lookup subnet with the 'Host Name' of techcrunch.com and the 'Host IP' of our development server, a Linux box running Debian on which I've created a virtualhost to handle requests to techcrunch.com. It doesn't appear to be working, however, and my expertise has reached its limit. Thanks!

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  • How to sync bookmarks between Firefox, Chrome, and Safari on multiple computers?

    - by Tai Squared
    There are some similar question on bookmark syncing, but most answers point to Delicious or Google bookmarks. However, as Chrome doesn't have the Google toolbar, how would those sync? I use several computers and different browsers on them so I would like a easy solution to keep all of the bookmarks in sync on various computers and browsers in the same organizational structure throughout. Also, I would prefer to have my bookmarks only synced to my account, not necessarily visible to the whole world as on Delicious. Is there any service that could handle this?

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  • Windows 2003 Server - Can I map a folder to another folder on the same server?

    - by TheCleaner
    Scenario: I have a server that was running low on space. We have an external iscsi SAN that it now has a LUN on and connected to the server as E:\ We are moving the PHOTOS folder from the old location on D:\ to the new E:. That new drive is being shared out as "ARCHIVE". So: \server\shared\photos now becomes \server\archive\photos I can easily place a shortcut in the original location saying "DOUBLE CLICK HERE FOR THE PHOTOS", but it isn't ideal. What I'd like is to be able to have \server\shared\photos simply point to \server\archive\photos. So that if someone wants to map a drive to \server\shared and then browse to the photos folder once in there they will see what is in the \server\archive\photos location. Is that possible? I was thinking about SUBST or DFS, but I don't think either of those will do it.

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  • bash terminal/console strange overlapping behavior

    - by UpKey
    I am using gnome-terminal in Ubuntu 11.10 and seem to get long lines overlapping in the terminal window. When I copy a long command line and paste it into the terminal, the text gets overlapped to the start of the line and often covers the user prompt. If I resize the terminal window, making it wider the overlapping gets undone and everything looks normal. In previous versions of Ubuntu, if a line was too long it would continue on the next line below. Another problem I have noticed that may be related, is when using the up arrow key to show previously typed commands, sometimes instead of the output command line being replaced by the previous command each time the key is pressed, the lines get partially merged. A portion of the old line remains, and the next command gets joined onto the end. This leftover part of a command is persistent and does not get replaced next time the key is pressed, although the insertion point or blinking cursor is at the end of the latest recalled command, and the leftover has no effect if I press enter. Is this problem a bug or some setting that needs fixing? Where do I look for the cause? keyboard? gnome-terminal? bash? Thank you for any help or suggestions offered

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  • Manually forcing TCP connection to retry

    - by Vi.
    I have a TCP connection (SSH session to some computer for example) Network suddenly goes down and drops all packets (disconnected cable, out of range). TCP resends packets again and again, retrying with increasing delays. I see the problem and plug the cable back (or restore network somehow). TCP connection finally successfully resends some packet and continues. The problem is that I need to wait for a some timeout on point 5. I want to use my opened SSH session now and not wait for 5-10 seconds until it finds out that connection is working again. How to force all TCP connections to resend data without delays in GNU/Linux?

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  • Windows script to create directories of 3,000 files

    - by uhpl1
    We have some email archiving that is dumping all the emails into a directory. Because of some performance reasons with the server, I want to setup an automated task that will run a script once a day and if there is more than 3,000 (or whatever number) of files in the main directory, create a new directory with the date and move all the main directory files into it. I'm sure someone has already written something similar, so if anyone could point me at it that would be great. Batch file or Powershell would both be fine.

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  • Handling deleted users - separate or same table?

    - by Alan Beats
    The scenario is that I've got an expanding set of users, and as time goes by, users will cancel their accounts which we currently mark as 'deleted' (with a flag) in the same table. If users with the same email address (that's how users log in) wish to create a new account, they can signup again, but a NEW account is created. (We have unique ids for every account, so email addresses can be duplicated amongst live and deleted ones). What I've noticed is that all across our system, in the normal course of things we constantly query the users table checking the user is not deleted, whereas what I'm thinking is that we dont need to do that at all...! [Clarification1: by 'constantly querying', I meant that we have queries which are like: '... FROM users WHERE isdeleted="0" AND ...'. For example, we may need to fetch all users registered for all meetings on a particular date, so in THAT query, we also have FROM users WHERE isdeleted="0" - does this make my point clearer?] (1) continue keeping deleted users in the 'main' users table (2) keep deleted users in a separate table (mostly required for historical book-keeping) What are the pros and cons of either approach?

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  • Importing orphaned Outlook 2010 OST file

    - by BigBadJock
    I have a problem with Outlook 2010 and OST files. First my exhange hosting company deleted my exchange account by accident. They've created it on another server, but can't get the data back. Now I did make a copy of the \users\name\appdata\local\outlook directory. So I have the original OST files. I decided to switch hosts to Office 365. During this, I stupidly deleted my account from within outlook and recreated it to point to Office 365. And only then did I learn that you can't import from OST files. Edited to clarify: I have a complete backup of the pc. Which folders would I need to restore to ensure that I can get exhange back it's previous state? I'm prepared to to a complete restore if necessary, but would prefer to localise the changes.

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  • Are there design patterns or generalised approaches for particle simulations?

    - by romeovs
    I'm working on a project (for college) in C++. The goal is to write a program that can more or less simulate a beam of particles flying trough the LHC synchrotron. Not wanting to rush into things, me and my team are thinking about how to implement this and I was wondering if there are general design patterns that are used to solve this kind of problem. The general approach we came up with so far is the following: there is a World that holds all objects you can add objects to this world such as Particle, Dipole and Quadrupole time is cut up into discrete steps, and at each point in time, for each Particle the magnetic and electric forces that each object in the World generates are calculated and summed up (luckily electro-magnetism is linear). each Particle moves accordingly (using a simple estimation approach to solve the differential movement equations) save the Particle positions repeat This seems a good approach but, for instance, it is hard to take into account symmetries that might be present (such as the magnetic field of each Quadrupole) and is this thus suboptimal. To take into account such symmetries as that of the Quadrupole field, it would be much easier to (also) make space discrete and somehow store form of the Quadrupole field somewhere. (Since 2532 or so Quadrupoles are stored this should lead to a massive gain of performance, not having to recalculate each Quadrupole field) So, are there any design patterns? Is the World-approach feasible or is it old-fashioned, bad programming? What about symmetry, how is that generally taken into acount?

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  • How to make Chrome open bookmarks and URLs in new tabs?

    - by MBraedley
    I principally use Firefox both at home and at work, but on occasion I use Chrome. I have Firefox working the way I like it by having it open bookmarks in a new tab when left clicked, as well, URLs open in new tabs. Although having URLs open in a new tab can be annoying if I type a bad URL, I still prefer it, but that's neither here nor there. I would like to replicate this behaviour in Chrome, and can't seem to find anything relavent in the settings. Is there any way of doing this without an extension? If not, can you point me towards an appropriate extension (I've already done a search and can't find what I'm looking for)?

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  • How to connect 2 virtual hosts running on the same machine?

    - by Gabrielle
    I have 2 virtual hosts running on my Windows XP laptop. One is Ubuntu running inside vmware player. The other is MS virtual PC (so I can test with IE6 ). The Ubuntu virtual host is running my web application with apache. I can point my browser on my laptop at the Ubuntu IP and view my web app. I read this post http://stackoverflow.com/questions/197792/how-to-connect-to-host-machine-from-within-virtual-pc-image and was able to get my Virtual PC to ping my physical machine using the loopback adapter. But I'm stuck on getting my Virtual PC to see my web application running in the Ubuntu vmware player host. I appreciate any suggestions.

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  • How to decide if I should take a profit sharing offer or insist on hard cash

    - by Icode4food
    I am currently the sole developer at the very beginning stages of what I think could be a successful startup. My question is simply how to go about determining if I am interested in accepting a permanent stock in the enterprise or if I should insist on hard cash. This startup is seeking venture capital and it is looking likely that they will get something, I don't know how much. I know very little about the business plan or financial operations at all. The founders have experience with other startup type devours that have been successful. From a business perspective I have a reasonable amount of confidence in them. However, I have never met them face to face. They have offered me a partnership in the project but I'm fairly confident that I don't want to do that. I have done some work for them and they really like me so I'm not to afraid of loosing the position all together. I am a young developer with no experience with this sort of thing and need some experience to point me in the right direction. How to I begin to evaluate how much stock or what percentage of the profit should I ask for? Any suggestions at all would be appreciated! P.S. Any suggestions for better tags?

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  • Apt Stalls When Using HTTP Sources

    - by UltraNurd
    I was getting some to me inexplicable behavior from apt-get/aptitude on an admittedly crusty old webserver. While it was otherwise running fine, as soon as I tried a package upgrade, after a downloading a few updates it would stall completely, then my SSH session hung (and I was unable to reconnect), thus requiring a hard restart. First, I switched to a different package source in /etc/apt/sources.list, but still got the same behavior. At this point I was assuming the NIC was dying in some weird way... but as soon as I changed the package source to use FTP instead of HTTP, everything worked fine, and I was able to upgrade. For now I'm not too concerned since I have an easy work around, but it implies that there's something very weird with my network setup, since it seems to be protocol (or port?) specific. I didn't think any of my NAT setup would affect outbound traffic, but I could be crazy. Any ideas what I should try to look for?

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  • Distributed website server redundancy

    - by Keith Lion
    Assume a website infrastructure is very complicated and is fully distributed (probably like most large web companies). Am I right in thinking that although there are all these extra web servers to handle multiple client requests, there is still a single "machine" whereby users must enter? I am guessing this machine will be the one physically associated to the IP address? I ask because I need to know whether, in places where distributed systems exist, there is still a single point of failure- usually the control node or, in this example, the machine connected to the public internet? Surely there cannot be two machines connected to the internet, as they would have to have different IP addresses? This "machine" may not be a server per se, but maybe it is a piece of cisco equipment. I just need to know whether, in the real world, these distributed systems still have a particular section where they depend on the integrity of one electronic device?

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  • Integrated Reporting Is Getting Closer

    - by Evelyn Neumayr
    By John O’Rourke, Vice President, Product Marketing, Oracle Oracle recently sponsored a webcast on CFO.com titled:  The CFO Playbook on Integrated Reporting: Integrating Sustainability into Financial Disclosures which focused on why top companies in the U.S. and overseas are incorporating sustainability content into their annual reports and other financial disclosures.  The webcast speakers, James Margolis, partner with Environmental Resources Management (ERM), a global provider of environmental, health, safety, risk and sustainability consulting services (EHSS) and Mike Wallace, Director of the Global Reporting Initiative's Focal Point USA, discussed the benefits of integrating sustainability reporting with traditional financial reporting. They noted how investors, corporate directors, lenders and most recently, the Securities and Exchange Commission, use this information to better understand, benchmark and value companies. They also talked about the November 2012 release of an Integrated Reporting Framework by the International Integrated Reporting Council (IIRC).  Read the press release and link to the framework here.  The shift towards integrated financial and sustainability reporting is gaining momentum with a number of global stock exchanges endorsing this approach in 2012.  Visit these links to listen to the webcast and download the slides. You can also view a demonstration of Oracle's solution for integrated financial and sustainability reporting. If you’re interested in learning more about this and Oracle’s other sustainability reporting solutions, click here. If you have any questions or need additional information, please feel free to contact me at [email protected].

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  • How to automount NTFS usb sticks on Xubuntu 12.10?

    - by netimen
    I'm running the Xubuntu 12.10 on a Lenovo T520 laptop. If I plug a FAT formatted usb stick, it's mounted automatically, but if I plug in a NTFS formatted one, I have to mount it manually. How to make NTFS usb sticks to mount automatically when plugged? My /etc/fstab in case it helps: # /etc/fstab: static file system information. # # Use 'blkid -o value -s UUID' to print the universally unique identifier # for a device; this may be used with UUID= as a more robust way to name # devices that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc nodev,noexec,nosuid 0 0 /dev/sda1 / ext4 errors=remount-ro,user_xattr 0 1 # swap was on /dev/sda5 during installation UUID=cd221c3e-44a8-459e-9dfb-04787f1cd0b6 none swap sw

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  • Grub2 attempting to boot hd1 when it should boot hd0

    - by JoBu1324
    I'm attempting to perform a "normal" install on a USB3 SSD (I don't know if it is noteworthy, but I don't have a swap partition). The installation proceeds normally (I'm installing from a USB2 device I created using LiLi Boot, with a copy of Ubuntu 12.10 64bit that I downloaded directly from the source. The system I'm running Ubuntu on has had a more traditional installation of ubuntu running on it without issue (also 12.10), so I know that everything works A-OK when booting from a 7200RPM internal disk. There are a number of oddities that I've noticed so far, including graphics corruption, but the first and most pressing issue is that Grub2 refuses to recognize the correct hd. From /boot/grub/grub.cfg: if [ x$feature_default_font_path = xy ] ; then font=unicode else insmod part_msdos insmod ext2 set root='hd1,msdos1' if [ x$feature_platform_search_hint = xy ]; then search --no-floppy --fs-uuid --set=root --hint-bios=hd1,msdos1 --hint-efi=hd1,msdos1 --hint-baremetal=ahci1,msdos1 b58ee4f7-d41d-400a-b7b8-18bd1f0ae9d3 else search --no-floppy --fs-uuid --set=root b58ee4f7-d41d-400a-b7b8-18bd1f0ae9d3 fi font="/usr/share/grub/unicode.pf2" fi This is from a 100% fresh install of linux (first boot), which was installed while no hard drives were connected to the system, other than the USB2 LiLi drive. The system refuses to boot unless I change the hd1,msdos1 - hd0,msdos1 in the grub menu at boot, when it is the only disk device connected to the PC. What options are left for me to troubleshoot this issue? I've been racking my brains and taxing the internet trying to dig up something on this problem, but now I'd like to see if the Ubuntu community can rise to the challenge and help me fix this boot problem. This is the second time I've attempted this particular setup. The first time, after days of wasted time, I managed to get it to boot every other boot - i.e. every even boot it would boot into Ubuntu like it was happy; every odd boot it would boot into the BusyBox or Grub prompt. At one point it complained that it couldn't find /dev/disk/by-uuid/[the disk], which I found most perplexing, since the disk was there and booted before and after the occurrence (with intervention).

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  • Does the mplayer-mozilla plugin have a problem with long DIVX videos or is this a problem with the U

    - by creamcheese
    Pretty consistently when I'm watching a long DIVX movie in the browser on Karmic - say 2 hours or so - the mplayer-mozilla player stops after a half-hour or an hour and resets back to 0, so I have to reload the whole movie again over the web. It happens repeatedly so I never get past the half-way point in the DIVX version of the movie - I have to watch a flash version instead. I don't know if this is an mplayer issue or a Firefox memory issue. Anyone have any idea how to resolve this?

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  • Apache crashing at random intervals. Can not find a reason in log files

    - by Nick Downton
    We are having an issue with a VPS running plesk 9.5 on ubuntu 8.04 At seemingly random intervals Apache will disappear and needs to be started manually. I have checked the apache error log, /var/log/messages, individual virtual host apache error files and cannot find anything that coincides with the time of the failure. dmesg is empty which is a bit odd. We have also had the psa service go down for no apparent reason but apache stay up. I'm at a loss to diagnose this really because all the log files I can find do not point to any issues. Are there any others I can look at? Memory usage sits at about 55% (out of 400mb) and it isn't a particularly high trafficed server. Any pointers as to where else I can find out what is going on would be very much appreciated. Nick

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  • WinXP workgroup, 3 routers 3 computers

    - by Silvera
    I have 3 computers with WinXP x86, and 3 Cisco 1800 series routers. I'm trying to create a workgroup so that the 3 computers can share files with eachother. They can ping eachother (without any internet connection), and the routers setup is correctly configured (with interfaces, ip adresses, and ports). But none of the computers can see eachother, even though they are on the same network. My first question would be - can it be done the way it is currently configured - and, if yes, how, or can anyone point me in the right direction?

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  • Advice on reconciling discordant data

    - by Justin
    Let me support my question with a quick scenario. We're writing an app for family meal planning. We'll produce daily plans with a target calorie goal and meals to achieve it for our nuclear family. Our calorie goal will be calculated for each person from their attributes (gender, age, weight, activity level). The weight attribute is the simplest example here. When Dad (the fascist nerd who is inflicting this on his family) first uses the application he throws approximate values into it for Daughter. He thinks she is 5'2" (157 cm) and 125 lbs (56kg). The next day Mom sits down to generate the menu and looks back over what the bumbling Dad did, quietly fumes that he can never recall anything about the family, and says the value is really 118 lbs! This is the first introduction of the discord. It seems, in this scenario, Mom is probably more correct that Dad. Though both are only an approximation of the actual value. The next day the dear Daughter decides to use the program and sees her weight listed. With the vanity only a teenager could muster she changes the weight to 110 lbs. Later that day the Mom returns home from a doctor's visit the Daughter needed and decides that it would be a good idea to update her Daughter's weight in the program. Hooray, another value, this time 117 lbs. Now how do you reconcile these data points? Measurement error, confidence in parties, bias, and more all confound the data. In some idealized world we'd have a weight authority of some nature providing the one and only truth. How about in our world though? And the icing on the cake is that this single data point changes over time. How have you guys solved or managed this conflict?

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