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  • How to make an object move again after being stopped by collision in Unity?

    - by Matthew Underwood
    I have a player object which position is always centered on the main camera's viewport. This object has a Rigidbody 2D, a box and circle collider. The player moves around a level, the level has a polygon collider attached. I move the camera until the object hits against the collider, which stops the movement of the camera by setting its speed to 0. The problem happens when I want to move the camera / player object away from the collider. As the speed is already at 0, it cannot move away from the collider. The script attached to the player object, checks for collisions and applies the speed to 0 on the main camera's test script. using UnityEngine; using System.Collections; public class move : MonoBehaviour { public float speed; public test testing; // Use this for initialization void Start () { speed = 10F; testing = Camera.main.GetComponent<test>(); } // Update is called once per frame void FixedUpdate () { Vector3 p = Camera.main.ViewportToWorldPoint(new Vector3(0.5F, 0.5F, Camera.main.nearClipPlane)); transform.position = new Vector3(p.x, p.y, -1); } void OnCollisionEnter2D(Collision2D col) { testing.speed = 0; } void OnCollisionExit2D(Collision2D col) { testing.speed = 10F; } } This is the script attached to the main camera; just a simple script that changes the camera's position. using UnityEngine; using System.Collections; public class test : MonoBehaviour { public float speed; public float translationY; public float translationX; // Use this for initialization void Start () { speed = 10F; } void FixedUpdate () { translationY = Input.GetAxis("Vertical") * speed * Time.deltaTime; translationX = Input.GetAxis("Horizontal") * speed * Time.deltaTime; transform.Translate(translationX, translationY, 0); } } The player object isn't kinematic and is a fixed angle, the colliders aren't triggers and the polygon collider isn't a trigger either. The player is the red square, the collider is the pink area. -- EDIT -- From the latest change the collider set up for the player So if the X speed was disabled. It wouldnt move into the side of the polygon colider which is good, but yet you couldnt move away from it. And moving down would move inside the colider.

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  • Changing Your Design for Testability

    Sometimes I come across a way of putting something that it is pithy good, not Hallmark trite, but an impactful and concise way of clarifying a previously obscure concept. A recent one of these happy occurrences was when I was reading the excellent Art of Unit Testing by Roy Osherove. After going through the basics of why youd want to test code and how to do it, Roy confronts a frequent objection to having unit tests, that it ends up changing how you design your components: When we write unit tests for our code, we are adding another end user (the test) to the object model. That end user is just as important as the original one, but it has different goals when using the model.  The test has specific requirements from the object model that seem to defy the basic logic behind a couple of object-oriented principles, mainly encapsulation. [emphasis added by me] When I read this, something clicked for me. I used to find it persuasive that because unit tests caused you to change your design they were more disruptive than they were worth. The counter argument I heard is that the disruption was OK, because testable design was just obviously better. That argument was not convincing as it seemed like delusional arrogance to suggest that any one of type of design was just inherently better for the particular applications I was building. What was missing was that I was not thinking of unit tests as an additional and equal end user to my design. If I accepted that proposition, than it was indeed obvious that a testable design was better because now all users of my component would be satisfied. Have I accepted that proposition? Id phrase it slightly different. I find more and more that having unit tests helps me write better, less buggy code before it gets to production or QA. As I write more unit tests, it gets easier to see how to create testable components, so I dont feel like its taking me as much extra time up front. I pick and choose components that seem most likely to benefit from automated tests and it is working out nicely. If you already implement Test Driven Development, this whole post was probably a waste of your time <g> If you hate the idea of unit tests, well, probably not a great value prop for you either. However, if you are somewhere in between, at least take a minute and check out a sample chapter from Roys book at: http://www.manning.com/osherove/.Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Week in Geek: SkyDrive Bug Blocks Opera Browser Users from the Service

    - by Asian Angel
    Our latest edition of WIG is filled with news link coverage on topics such as how the FBI and CIA can read your e-mail, Blizzard admits to wrongfully banning a Diablo 3 Linux user and refunds his money, e-mailed malware disguised as group coupon offers are increasing, and more. Chainlink clipart courtesy of For Web Designer. How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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  • Friday Fun: Archers Oath

    - by Asian Angel
    This week’s game puts your archery skills to the test as you race against time to save innocent captives from the hangman’s noose. Are you good enough to show Robin Hood a thing or two about using a bow or will you be shot down in shame? How to Stress Test the Hard Drives in Your PC or Server How To Customize Your Android Lock Screen with WidgetLocker The Best Free Portable Apps for Your Flash Drive Toolkit

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  • Week in Geek: Google Announces New Round of Services to be Shut Down

    - by Asian Angel
    Our latest edition of WIG is filled with news link coverage on topics such as an IE flaw allows attackers and advertisers to track cursor movement, Microsoft will retire its Live Mesh PC-sync service in February, Yahoo has revamped its e-mail service & continues overhaul on Flickr, and more. Secure Yourself by Using Two-Step Verification on These 16 Web Services How to Fix a Stuck Pixel on an LCD Monitor How to Factory Reset Your Android Phone or Tablet When It Won’t Boot

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  • Unintentional run-in with C# thread concurrency

    - by geekrutherford
    For the first time today we began conducting load testing on a ASP.NET application already in production. Obviously you would normally want to load test prior to releasing to a production environment, but that isn't the point here.   We ran a test which simulated 5 users hitting the application doing the same actions simultaneously. The first few pages visited seemed fine and then things just hung for a while before the test failed. While the test was running I was viewing the performance counters on the server noting that the CPU was consistently pegged at 100% until the testing tool gave up.   Fortunately the application logs all exceptions including those unhandled to the database (thanks to log4net). I checked the log and low and behold the error was:   System.ArgumentException: An item with the same key has already been added. (The rest of the stack trace intentionally omitted)   Since the code was running with debug on the line number where the exception occured was also provided. I began inspecting the code and almost immediately it hit me, the section of code responsible for the exception is trying to initialize a static class. My next question was how is this code being hit multiple times when I have a rudimentary check already in place to prevent this kind of thing (i.e. a check on a public variable of the static class before entering the initializing routine). The answer...the check fails because the value is not set before other threads have already made it through.   Not being one who consistently works with threading I wasn't quite sure how to handle this problem. Fortunately a co-worker recalled having to lock a section of code in the past but couldn't recall exactly how. After a quick search on Google the solution is as follows:   Object objLock = new Object(); lock(objLock) { //logic requiring lock }   The lock statement takes an object and tells the .NET runtime that the current thread has exclusive access while the code within brackets is executing. Once the code completes, the lock is released for another thread to utilize.   In my case, I only need to execute the inner code once to initialize my static class. So within the brackets I have a check on a public variable to prevent it from being initialized again.

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  • Week in Geek: Firefox 17 Beta now Forces Secure Connections for List of Selected Domains

    - by Asian Angel
    Our first edition of WIG for November is filled with news link coverage on topics such as Gmail has become the #1 e-mail service in the world, Borderlands 2 video game characters are being killed off by a sabotage attack, Ubuntu 11.04 has reached its end of life, and more. How To Play DVDs on Windows 8 6 Start Menu Replacements for Windows 8 What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives?

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  • Grep only shows last match

    - by Bannix
    I've got a problem with grep. When I use it as followed, it only shows the last match in every line and what follows after it. For example: If I use tail -F example.log | grep -a -i -e "word1" -e "word2" -e "word3" and example.log contains word1 this word2 is word3 a test only "word3 a test" will be displayed. How can I display the whole line and not only the last matched string in a line + rest of the line? I hope you can understand what I mean and help me :) Greetings, Bannix

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  • Does Your Browser Behave?

    Last June, we launched the Sputnik JavaScript conformance test suite, a comprehensive set of more than 5000 tests. Today we're releasing a test runner for Sputnik, that allows...

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  • Week in Geek: Steam Users at Risk from Potential New Security Vulnerability

    - by Asian Angel
    Our latest edition of WIG is filled with news link coverage on topics such as 10 things to do after installing Ubuntu 12.10, the FTC’s offer of a $50,000 cash bounty for technology to help eliminate robocalls, the new malware variant spreading across Skype, and more. Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer Why Enabling “Do Not Track” Doesn’t Stop You From Being Tracked

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  • April 2012 Patch Tuesday

    - by TATWORTH
    Next Tuesday, Microsoft will issue a number of critical patches. I urge you to apply the patches to your desktop PCs A.S.A.P. , then deploy to your test servers, test, get signoff and deploy to production.More information can be obtained at:http://www.computerworld.com/s/article/9225883/Microsoft_slates_critical_Windows_Office_IE_patches_next_week_including_head_scratcher_?taxonomyId=17http://technet.microsoft.com/en-us/security/bulletin/ms12-aprhttp://www.scmagazine.com/microsoft-to-sew-up-11-security-vulnerabilities-next-week/article/235396/http://www.zdnet.com/blog/security/microsoft-readies-patch-for-gaping-ie-browser-security-holes/11366

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  • Week in Geek: Windows 8 Security Flaw – Passwords Stored in Plain Text When Using Picture or PIN Login

    - by Asian Angel
    This week’s edition of WIG is filled with news link coverage on topics such as new malware seeks to lock Skype users out of their PCs, Dell will stick to Windows 7 after Windows 8 debut, Mozilla Thunderbird users now get 25 GB of cloud storage for free, and more. HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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  • Prolific Viruses

    Anti-Virus software gets a great deal of coverage in Click because ultimately it';s a very important component of any computer system and choosing the right program to protect your computer should be ... [Author: Chris Holgate - Computers and Internet - May 16, 2010]

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  • ZFS Storage Appliance on CRN

    - by Cinzia Mascanzoni
    Check out the latest CRN coverage for Oracle’s ZFS Storage Appliance here. Not only a great product review performed by CRN with Oracle partner Cintra, but ZFS Storage Appliance makes the “30 Hottest Tech Releases In August” review.

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  • OSB unit testing, part 1 by Qualogy

    - by JuergenKress
    First you need to implement the simple bpel process like this : In my current project, I inherited a lot of OSB components that have been developed by (former) team members, but they all lack unit tests. This is a situation I really dislike, since this makes it much harder to refactor or bug-fix the existing code base. So, for all newly created components (and components I have to bug-fix) I strive to add unit tests. Of course, the unit tests will be created using my favourite testing tool: soapUI ! Unit of test The unit test should be created for the service composition, which in OSB terms should be the proxy service combination with its business service. Now, since you do not want to rely on any other services, you should provide mock services for all services invoked from your Component-Under-Test. In a previous article, I wrote about mocking your services in soapUI. While this approach would also be valid here, creating a mock service (and certainly deploying it on a separate WebServer) does violate one of the core principles of unit testing: to make your unit tests as self-contained as possible, i.e. not depending on any external components. In this article, I will show you how to achieve this by simply providing a mock response inside your unit test. Scenario The scenario I implement for testing is a simple currency converter; the external request consists of a from and a to currency, and an amount (in currency from). The service will perform an exchange rate lookup using the WebServiceX CurrencyConverter and return a response to the caller consisting of both the source and target currencies and amounts. For the purpose of unit testing, I will implement a mock response for the exchange rate lookup. Read the complete article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Technorati Tags: Qualogy,OSB,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Free ebook: Programming Windows 8 Apps with HTML, CSS, and JavaScript

    - by TATWORTH
    Originally posted on: http://geekswithblogs.net/TATWORTH/archive/2013/11/03/free-ebook-programming-windows-8-apps-with-html-css-and.aspxAt http://blogs.msdn.com/b/microsoft_press/archive/2012/10/29/free-ebook-programming-windows-8-apps-with-html-css-and-javascript.aspx, there is a free E-Book: Programming Windows 8 Apps with HTML, CSS, and JavaScript. "This free E-book provides comprehensive coverage of the platform for Windows Store apps."

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  • when including a file using php function not work?

    - by John Smiith
    MY PHP FUNCTION IS function functionName() { include($_SERVER['DOCUMENT_ROOT']."/path/file.php"); } Content of File.php is $foo = 'bar'; Calling function (content of file test.php) functionName(); When call function and variable not work echo $foo; <- not works But when adding code below its works (content of file test.php) include($_SERVER['DOCUMENT_ROOT']."/path/file.php"); echo $foo; <- its works

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  • XPath execution utility

    - by TATWORTH
    I have written an XPath test utility at http://commonxpath.codeplex.com/releases/view/96687This is a WPF application that allows you to enter some test XML and and an XPath expression. When writing such expressions it is important to get the XPath expression correct before embedding it into a program.The program is available as source under LGPL so you can run it both on your office and home PCs. There is a link to help on XPATH syntax.

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  • How To Use Conditions In Shell Scripts

    <b>Begin Linux:</b> "Conditions are elements that you will use often. With conditions you will test for an element and then create a response to the results of that test. In most situations, conditions will be a very important part of your scripts."

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