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  • Are there any Java based libraries that provide game mapping features?

    - by James.Elsey
    Hi All, I'm working on a Java web based game in my spare time (springMVC / JSPs etc), and I'm wondering what are my options for dealing with the "game world" or mapping element. My game will be 2d / text based, so I have no need for any OpenGL / Flash etc. My initial idea was to use Google maps and provide a custom overlay, but I want to know if there are any alternatives? For example, if I create a 2d map with all my zones, are there any libraries that will help me plot players, work out distances and so forth? Regards

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  • Algorithm to map an area [on hold]

    - by user37843
    I want to create a crawler that starts in a room and from that room to move North,East,West and South until there aren't any new rooms to visit. I don't want to have duplicates and the output format per line to be something like this: current room, neighbour 1, neighbour 2 ... and in the end to apply BFS algorithm to find the shortest path between 2 rooms. Can anyone offer me some suggestion what to use? Thanks

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  • IPv6 tunnels - any easy way to turn them on and off?

    - by Rob Hoare
    I've set up a tunnelbroker.net (Hurricane Electric) IPv6 tunnel from my laptop running 12.04. Works fine, and allows me to test the dual-stack configuration on my remote webservers etc. until native IPv6 is available on my ISP. However, there are times when I don't want the tunnel. For example if I'm accessing something that requires an IPv4 address in my own country rather than the Tunnelbroker tunnel endpoint, or if I'm away from the local IPv4 tunnel endpoint, or if I simply want to test without IPv6. Is there a simple way to disable and then re-enable the IPv6 tunnel, without rebooting? For context, here's what's in my /etc/network/interfaces (NNN replaces numbers): auto he-ipv6 iface he-ipv6 inet6 v4tunnel endpoint 216.218.NNN.NNN address 2001:470:NNN:NNN::2 netmask 64 up ip -6 route add default dev he-ipv6 down ip -6 route del default dev he-ipv6 Is there a network manager application (gui or command line) to selectively enable/disable parts of /etc/network/interfaces, or IPv6 in general? I found even by commenting out that out (and reloading networking) it's tough to get the IPv6 to go away. A "tunnel on/off" button in networking would be great, like using a VPN.

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  • Wired connection problem through router

    - by tommypincha
    I'm having trouble to connect my Ubuntu 11.10 to internet through ethernet. I installed a router to get Wi-Fi and now (by a wired connection) I can't have internet with ubuntu (but I can with Windows 7). I see several attempts per minute of the network-manager to get a connection, but after a minute it stops trying. Here are a couple of outputs from key files: cat /etc/network/interfaces auto lo iface lo inet loopback and ifconfig -a eth0 Link encap:Ethernet HWaddr 00:16:76:e4:a6:e8 inet6 addr: fe80::216:76ff:fee4:a6e8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:117 dropped:0 overruns:0 frame:117 TX packets:50 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:12221 (12.2 KB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:582 errors:0 dropped:0 overruns:0 frame:0 TX packets:582 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:46024 (46.0 KB) TX bytes:46024 (46.0 KB) I tried reconnecting the modem and the router and reconnecting the ethernet cable but nothing... I tried other solutions from other posts (this one has a similar issue Wired connection not working) but again nothing. My IP is dynamic. A couple of things I see and did: I see no inet addr, only inet6. I ignored ipv6 from the internet connections, and restarted the network-manager service and nothing. A difference with the post I mentioned is the RX packets with errors I have, is this a clue of the problem? Any help would be appreciated, Thanks!

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  • The Learning Map

    - by user12652314
    Danny Hillis has always been a favorite since he opened the first Java Day back in 1995. Now it's great to see him talking about the challenge we are just about to address with our new "Learning Exchange" Industry Solution which brings all the power of Oracle technology to the address the challenge for lifelong learners. The current thought is to launch it at the Edu tech event at CES along with a special dinner reception with our content friends at Digital Hollywood. Stay tuned.

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  • Windows: "net use" equivalent that shows the username used to mount a share?

    - by Jeroen Wiert Pluimers
    Sometimes you need to use different credentials to map different shares, for instance net use z: \\myserver\myshare /user:mydomain\myusername mypassword You can use net use to show you the shares that are mapped, but it does not show the mydomain\myusername. What can I use to show that information? I'm looking for output like this from the imaginary command NetUseX: H:\>NetUseX New connections will be remembered. Status Local Remote Username Network ---------------------------------------------------------------------------------------------------------- OK D: \\MyServer1234\SomeData MyServer1234\MyUserA Microsoft Windows Network Unavailable E: \\MyServer4321\SomeApps MyDomain\MyUserB Microsoft Windows Network OK H: \\MyServer4321\HomeDAta MyDomain\MyUserB Microsoft Windows Network Disconnected W: \\MyServer6789\WorkData MyDomain\MyUserB Microsoft Windows Network OK \\MyServer9876\Shortcuts MyServer9876\MyUserC Microsoft Windows Network The command completed successfully.

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  • Ubuntu 12.04 Network Manager: unable to save manual setting to set up a static ip

    - by Andy
    I am fairly familiar with setting up servers, and ubuntu is generally my flavor of choice, but I just installed 12.04 desktop and I am seeing some behavior in network manager that is really puzzling. The network connection works fine if I leave it set on dhcp, but I would like a static IP address for my new web server. When I go into network manager and edit the connection for the one and only NIC I can select MANUAL from the dropdown menu but as soon as I do the Save button becomes greyed out. Even after filling out all fields for the connection it is still grey and I am unable to save the static IP connection information. Any thoughts would be greatly appreciated. I'm hoping there is just some new setting that I am unaware of.... On another note, if I stop the network manager and go edit the interfaces file (and the appropriate hosts/routes/dns files), I do get a static ip address assigned and I can contact my server from the outside, however, the server cannot find the internet. Can't ping even its own ip... I can ping the loopback interface though. I'm really confused on this one. Hoping someone can offer some help.

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  • SS7(M3UA, SCCP, TCAP, MAP) Stack

    - by Ammar Hameed
    I'm building an open source SMSC from scratch; it's almost finished, The SRI and the forwardSM operations are working, but I still have few things to do for the receiving part. I've built the SS7 stack already, but I'm using DB for saving the TCAP transactions IDs to be updated later to get/generate responses. My approach is this: I created memory table (heap table), saved the TCAP TID in the database, then compared the received TCAP TID with the TIDs saved in the database and then decide whether to end the TCAP session or continue. What is the best way to implement it? I'm thinking of doubly linked list that holds the TCAP TID. Am I going towards the right direction, or should I use another technique other than database or D-linked list? Should I leave it as it is, and let the database do the job for saving the TIDs? Please note that I'm using SCTP implementation available on Linux (lsctp) as a transport protocol, the language I'm using is C and the DB is MYSQL.

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  • How to handle a Tile Map Scrolling [duplicate]

    - by DGomez
    This question already has an answer here: Implementing a camera / viewport to a 2D game 1 answer i'm making a video game, and i'm having, i think, a concept problem. The game will be a platformer which will use tile maps, so to start i will create a mask matrix indicating the tiles to be loaded, and etc..., so my problem is, how to handle the scrolling? should i create a giant mask matrix indicating in each position of the whole level what is supposed to be loaded, and according to the position of the player, change the section to be drawed?? Is this a correct approach to this situation??

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  • how to map a network drive [duplicate]

    - by acquacheta
    This question already has an answer here: Correct way of mounting a Windows share 1 answer I hope someone can help me.. I'm trying to connect with my university remote filestore, but I can't make it work.. Here is explained what to do on Windows or Mac, and here I found a guide about how to do it with ubuntu, but it's not working to me (at the end of all the steps, I can't access to the mounted folder). I can access to the storage through Konqueror (I'm using KDE), but I would like to access to it also without it. Any suggestion?

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  • Using google maps as an input method

    - by Vasiliy Sharapov
    I'm wondering if it's possible to use gmaps pretty much as a type of input. Normally for Location a user has to enter: street address town/city state/province postal code country This seems too clunky to me, does anyone here know of a more elegant process? My perfect address-entering interface is a gmaps search bar with a map under it. When the user clicks a marker instead of a speech bubble containing location information they get one containing a submit button or equivalent. I'm not sure anything like this has been implemented before.

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  • Cannot connect to wireless network

    - by smr
    I am quite new to using Ubuntu 12.10. All I remember while installing Ubuntu 12.10 was that I didn't check any box specifically to enable wireless connectivity. I tried looking into the various questions posted here - most of them refer to certain commands (redundantly sudo) and things of that sort. I am quite new and wasn't sure of understanding what those commands were trying to do (the network configuration settings - showed up different options, like 'Wireless', 'Wired', 'IPv4', 'IPv6' etc -- I am not sure of what sort of settings are to be made - like for example what sort of 'WEP' settings etc are to be made. Although I wasn't able to connect to the wireless network, I was able to connect to the internet, once I plugged in the ethernet cable. Can someone help me with: 1) Understandng a way to see if Ubuntu is configured to connect to a wireless network. 2) If so - Getting to configure to a wireless network (setting up a new one). 3) Where in ubuntu, should I look for seeing if there are any hardware devices (such as the Broadcom wireless adapter or things of that sort - like the way we use the 'Device manager' in Windows to look into the adapter settings). 4) Reference material to learn and understand the various ubuntu commands. (things like the -lshw etc).

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  • google maps based desktop application

    - by dramaticlook
    I want to build a desktop application which has google maps embedded to it. This app should have a thread to read coordinate data online a usb microphone to use. This application will move the google map markers to their new locations based on the data retrieved from online connections on each refresh. As far as I know gmaps has a javascript API so the first idea in my mind was to embed this mapview into a java applet. So the application will run on a browser. Im not sure if this will work. Do you guys have any idea about this or any other advices you might have? Thanks in advance!!!

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  • Drupal + GMap macro, map markers not displayed

    - by mingos
    Hi. I've run into a strange problem in the GMap module for Drupal. When I display a map inside a node using a GMap macro, everything is displayed correctly (according to what I specify in the macro or leave at default), save for map markers. I'm trying to specify a map marker, but it refuses to be displayed. My macro is the following: [gmap zoom=17 |center=53.77420697757659,20.474138259887695 |markers=big blue::53.77420697757659,20.474138259887695] I was unable to find any help on Drupal forums, both the official one and one local to my country. For completeness' sake, I do not wish to use a GMap view, just add a macro in a regular node. Hope you can help me find a solution. Thanks in advance for your replies...

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  • Creating a Map Report in SSRS - SQL Server 2008 R2

    SQL Server 2008 R2 brought several new features into the SSRS (SQL Server Reporting Services) arena. In the data visualization category, we now have three additional ways to display and visualize/analyze data in the reports. The Future of SQL Server Monitoring "Being web-based, SQL Monitor enables you to check on your servers from almost any location" Jonathan Allen.Try SQL Monitor now.

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  • Map keys in Vim

    - by efficiencyIsBliss
    I want to map e to mean end of line. I tried the following mapping in my vimrc: map $ e $ is the default end of line command. However, this doesn't work. I'm wondering what the problem is. Also, I want to map Alt+right/left arrow to navigate words. So, for example, Alt+right arrow would take me to end of word. This command is currently mapped to e. Any tips on how I would go about doing this? Thanks!

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  • How to map TFS to two local directories

    - by Buh Buh
    I am working with a web application, using TFS. Every time I build the site it takes an unproductivly long time to start up again. I would like to have a second mapping of the site on my c drive, where I would only get latest and build once a day, so this version would always be fast. This would be like a "readonly" directory as I wouldn't personally make any edits to it. Please let me know if this possible, or if you have any alternative.

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  • lshw not showing network

    - by triunenature
    Output: {User}@{Computer}:~$ sudo lshw -class network {User}@{Computer}:~$ Another Test: {User}@{Computer}:~$ lspci 00:00.0 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a1) 00:01.0 ISA bridge: NVIDIA Corporation MCP61 LPC Bridge (rev a2) 00:01.1 SMBus: NVIDIA Corporation MCP61 SMBus (rev a2) 00:01.2 RAM memory: NVIDIA Corporation MCP61 Memory Controller (rev a2) 00:02.0 USB controller: NVIDIA Corporation MCP61 USB 1.1 Controller (rev a3) 00:02.1 USB controller: NVIDIA Corporation MCP61 USB 2.0 Controller (rev a3) 00:04.0 PCI bridge: NVIDIA Corporation MCP61 PCI bridge (rev a1) 00:05.0 Audio device: NVIDIA Corporation MCP61 High Definition Audio (rev a2) 00:06.0 IDE interface: NVIDIA Corporation MCP61 IDE (rev a2) 00:07.0 Bridge: NVIDIA Corporation MCP61 Ethernet (rev a2) <<---- Network Card???? 00:08.0 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2) 00:08.1 IDE interface: NVIDIA Corporation MCP61 SATA Controller (rev a2) 00:09.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) 00:0b.0 PCI bridge: NVIDIA Corporation MCP61 PCI Express bridge (rev a2) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:05.0 FireWire (IEEE 1394): LSI Corporation FW322/323 (rev 70) 02:00.0 VGA compatible controller: NVIDIA Corporation G96 [GeForce 9500 GT] (rev a1) If you look at 00:07.0 I believe that is the network card. However lshw doesnt show it. I mainly need information on network speed 10MBpS/100MBsP/1000MBpS Though knowing why my system isn't working would be nice.

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  • Example map-reduce oozie program not working on CDH 4.5

    - by user2002748
    I am using Hadoop (CDH 4.5) on my mac since some time now, and do run map reduce jobs regularly. I installed oozie recently (again, CDH4.5) following instructions at: http://archive.cloudera.com/cdh4/cdh/4/oozie-3.3.2-cdh4.5.0/DG_QuickStart.html, and tried to run sample programs provided. However, it always fails with the following error. Looks like the workflow is not getting run at all. The Console URL field in the Job info is also empty. Could someone please help on this? The relevant snippet of the Oozie Job log follows. 2014-06-10 17:27:18,414 INFO ActionStartXCommand:539 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@:start:] Start action [0000000-140610172702069-oozie-usrX-W@:start:] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10] 2014-06-10 17:27:18,417 WARN ActionStartXCommand:542 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@:start:] [***0000000-140610172702069-oozie-usrX-W@:start:***]Action status=DONE 2014-06-10 17:27:18,417 WARN ActionStartXCommand:542 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@:start:] [***0000000-140610172702069-oozie-usrX-W@:start:***]Action updated in DB! 2014-06-10 17:27:18,576 INFO ActionStartXCommand:539 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@mr-node] Start action [0000000-140610172702069-oozie-usrX-W@mr-node] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10] 2014-06-10 17:27:19,188 WARN MapReduceActionExecutor:542 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@mr-node] credentials is null for the action 2014-06-10 17:27:19,423 WARN ActionStartXCommand:542 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@mr-node] Error starting action [mr-node]. ErrorType [TRANSIENT], ErrorCode [JA009], Message [JA009: Unknown rpc kind RPC_WRITABLE] org.apache.oozie.action.ActionExecutorException: JA009: Unknown rpc kind RPC_WRITABLE at org.apache.oozie.action.ActionExecutor.convertExceptionHelper(ActionExecutor.java:418) at org.apache.oozie.action.ActionExecutor.convertException(ActionExecutor.java:392) at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:773) at org.apache.oozie.action.hadoop.JavaActionExecutor.start(JavaActionExecutor.java:927) at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:211) at org.apache.oozie.command.wf.ActionStartXCommand.execute(ActionStartXCommand.java:59) at org.apache.oozie.command.XCommand.call(XCommand.java:277) at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:326) at org.apache.oozie.service.CallableQueueService$CompositeCallable.call(CallableQueueService.java:255) at org.apache.oozie.service.CallableQueueService$CallableWrapper.run(CallableQueueService.java:175) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:744) Caused by: org.apache.hadoop.ipc.RemoteException(java.io.IOException): Unknown rpc kind RPC_WRITABLE at org.apache.hadoop.ipc.Client.call(Client.java:1238) at org.apache.hadoop.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:225) at org.apache.hadoop.mapred.$Proxy30.getDelegationToken(Unknown Source) at org.apache.hadoop.mapred.JobClient.getDelegationToken(JobClient.java:2125) at org.apache.oozie.service.HadoopAccessorService.createJobClient(HadoopAccessorService.java:372) at org.apache.oozie.action.hadoop.JavaActionExecutor.createJobClient(JavaActionExecutor.java:970) at org.apache.oozie.action.hadoop.JavaActionExecutor.submitLauncher(JavaActionExecutor.java:723) ... 10 more 2014-06-10 17:27:19,426 INFO ActionStartXCommand:539 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@mr-node] Next Retry, Attempt Number [1] in [60,000] milliseconds 2014-06-10 17:28:19,468 INFO ActionStartXCommand:539 - USER[userXXX] GROUP[-] TOKEN[] APP[map-reduce-wf] JOB[0000000-140610172702069-oozie-usrX-W] ACTION[0000000-140610172702069-oozie-usrX-W@mr-node] Start action [0000000-140610172702069-oozie-usrX-W@mr-node] with user-retry state : userRetryCount [0], userRetryMax [0], userRetryInterval [10]

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