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  • Is AGS outdated for Point & Click Adventures?

    - by Aidan Moore
    Is Adventure Game Studio (AGS) outdated? I am working on a Point and Click Adventure game being coded on the AGS engine, and just recently, the question of 'is this outdated?' has come up. I'll admit, AGS is a rather old, and kind of went out of style with the P&C genre itself, but I have not found anything quite like it that specializes in this specific format of games. So my big question is not only 'is this outdated?' but also 'Is there a better alternative?'

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  • What's the right terminology for Unity's UI elements?

    - by Bou
    Hi, I've sent a few mails to the Ayatana mailing list regarding some UI suggestions for Unity, but I'm afraid I keep confusing the right terms for the UI element, so I would like to have some clarification. Is the bar at the top called "panel"? Does the Ubuntu logo at the top left corner have a name? Is the left sidebar called "dock"? Are the coloured tiles with app icons on them called "launchers"? Is the purple tile called "workspace switcher"? Are the fullscreen things that appear when you click the Ubuntu logo, the Places tile or the Apps tile, called "dash"? Do they all have the same name?

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  • Stacked Launcher Item Double Click Behaviour on Alt-tab

    - by Brandon Bertelsen
    Let's say that you have multiple firefox windows open. What you see happen is an additional arrow points to it's icon in the launcher. However, if you double click the icon, it displays all of the windows in a spread out fashion, similar to the behaviour from pushing Super + W, but only for that program group. Is it possible to make this window spreading behaviour occur with alt-tab? PS: No idea what tags I should use, or if the language (jargon) in the title or question is appropriate.

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  • Left-click button inconsistently clicks in Lubuntu

    - by thebaer
    Just recently installed Lubuntu 12.10 on my Samsung N130 netbook, and left-clicking only works every once in a while. Here is the output from synclient, if it helps. Before changing MaxTapTime to 0, tapping to click worked fine. Clicking with hardware button worked fine on previous versions of Ubuntu before switching to Lubuntu on same computer. Parameter settings: LeftEdge = 1775 RightEdge = 5503 TopEdge = 1652 BottomEdge = 4662 FingerLow = 25 FingerHigh = 30 FingerPress = 256 MaxTapTime = 0 MaxTapMove = 245 MaxDoubleTapTime = 180 SingleTapTimeout = 180 ClickTime = 100 FastTaps = 0 EmulateMidButtonTime = 75 EmulateTwoFingerMinZ = 282 EmulateTwoFingerMinW = 7 VertScrollDelta = 111 HorizScrollDelta = 111 VertEdgeScroll = 0 HorizEdgeScroll = 0 CornerCoasting = 0 VertTwoFingerScroll = 1 HorizTwoFingerScroll = 0 MinSpeed = 1 MaxSpeed = 1.75 AccelFactor = 0.0359131 TrackstickSpeed = 40 EdgeMotionMinZ = 30 EdgeMotionMaxZ = 160 EdgeMotionMinSpeed = 1 EdgeMotionMaxSpeed = 445 EdgeMotionUseAlways = 0 TouchpadOff = 0 LockedDrags = 0 LockedDragTimeout = 5000 RTCornerButton = 2 RBCornerButton = 3 LTCornerButton = 0 LBCornerButton = 0 TapButton1 = 1 TapButton2 = 3 TapButton3 = 0 ClickFinger1 = 1 ClickFinger2 = 1 ClickFinger3 = 0 CircularScrolling = 0 CircScrollDelta = 0.1 CircScrollTrigger = 0 CircularPad = 0 PalmDetect = 0 PalmMinWidth = 10 PalmMinZ = 200 CoastingSpeed = 20 CoastingFriction = 50 PressureMotionMinZ = 30 PressureMotionMaxZ = 160 PressureMotionMinFactor = 1 PressureMotionMaxFactor = 1 ResolutionDetect = 1 GrabEventDevice = 1 TapAndDragGesture = 1 AreaLeftEdge = 0 AreaRightEdge = 0 AreaTopEdge = 0 AreaBottomEdge = 0 HorizHysteresis = 27 VertHysteresis = 27 ClickPad = 0

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  • Where is the Accessibility mouse click lock?

    - by user10133
    I've been a user of Linux on the desktop off and on again over the years. I very nearly switched my primary computer to Ubuntu prior to the release of Windows 7. There were a few, but significant issues at the time that prevented wholesale adoption, mostly tethering with my phone and lousy VPN Client. One key component I could count on was the Accessibility features. I have recently installed Ubuntu 10.10 and am considering giving it another try, but it appears Ubuntu has taken a leap backwards in that it no longer has a click lock feature for the mouse. Basically I need the ability to press and hold the left button to trigger a locking of the button so I can move the mouse by way of a trackpoint with my prosthesis. I absolutely require this feature and it is a deal breaker if it won't work. I've tried the Dwell keys but this is a chaotic control at best. I've never been able to manage a drag of any kind.

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  • Java still dont recognize horizontal scroll (right click) 14.04

    - by user289280
    I am totally trackpoint fan, I use it all the time and have disablet my touchpad. Due to my study I work a lot with MATLAB, but MATLAB uses Java, and horizontal scroll does not be recognized by java as I already reat in many other threats(well it recognizes as right click :S ). There seems to be no solution for that and disable horizontal scroll in matlab is no solution for me at all. Does anybody know about a fix for that or somehow to enable horizontal scroll java. This really drives me crazy. HELP! I have Ubuntu 14.04 with java version: java version "1.7.0_55" OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1) OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode) Thank you in advance!

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  • How to remove options from right click menu?

    - by Someone Like You
    There was this question, which suggest the use of Nautilus actions So i installed that. I try to open it but it does not open. I'm not asking you to fix it since Ask Ubuntu is not a bug tracker. All bug reports here will be closed as off-topic Fair enough, and i don't have time to report bugs, anyway Nautilus actions doesn't seem to care about the bug, it was reported before no actions were taken. Thus I don't seem to care about Nautilus actions. My question is simple: I want to know is there any alternative to Nautilus actions, or even better, how to add/remove options from the right click menu manually (without using any other software).

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  • Is the tap-to-click issue solved

    - by AWE
    I'm just an average Joe when it comes to computing (maybe less then the average Joe) but I hate tap-to-click. In system and settings there is no touchpad tab? Is it true that this has been fixed? I'm using Dell inspiron N5110 xinput list: ? Virtual core pointer id=2 [master pointer (3)] ? ? Virtual core XTEST pointer id=4 [slave pointer (2)] ? ? PS/2 Generic Mouse id=13 [slave pointer (2)] This is really strange because Dell is one of the top manufacturers in laptops and Ubuntu one of the top distros in Linux and Canonical claims that they are working closely with Dell.

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  • Best database setup for one click games

    - by ewizard
    I am building a one click game website/mobile app, and I am debating between using MySQL and MongoDB for the backend. The way I have been exploring it is with a NodeJS/Express/Angular/Passport/MongoDB stack - I have also implemented Socket.io. I have gotten to the point where I am sending data from the flash game to the server (NodeJS). The only data that needs to be sent is basic user information, the players score at the end of each game, and some x,y positions for each players game (for anti-cheating). It seems like MySQL would work fine, but as I am already using MongoDB - are there any major drawbacks to continuing to work with MongoDB on this project?

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  • Point and click synonym replacement in text area with Javascript

    - by SilentD
    I am trying to create a site that will allow you to type a sentence or passage of text, then click on words to bring up a list of synonyms (from an online API) and possibly authorized abbreviations from a list that I provide, then once clicked on it would replace that word with the word that was clicked on. It would function kind of like After the Deadline or a Javascript based spell checker. Are there any libraries set up to make something like this easy, or what kind of Javascript do I need to be looking at? Are there any tutorials or examples for this kind of thing? I am aware that the source code for After the Deadline is available, but I only need a small portion of their technology, not all of the actual grammar and spelling check technology.

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  • Resolve SRs Faster Using RDA - Find the Right Profile

    - by Daniel Mortimer
    Introduction Remote Diagnostic Agent (RDA) is an excellent command-line data collection tool that can aid troubleshooting / problem solving. The tool covers the majority of Oracle's vast product range, and its data collection capability is comprehensive. RDA collects data about the operating system and environment, including environment variable, kernel settings network o/s performance o/s patches and much more the Oracle Products installed, including patches logs and debug metrics configuration and much more In effect, RDA can obtain a snapshot of an Oracle Product and its environment. Oracle Support encourages the use of RDA because it greatly reduces service request resolution time by minimizing the number of requests from Oracle Support for more information. RDA is designed to be as unobtrusive as possible; it does not modify systems in any way. It collects useful data for Oracle Support only and a security filter is provided if required. Find and Use the Right RDA Profile One problem of any tool / utility, which covers a large range of products, is knowing how to target it against only the products you wish to troubleshoot. RDA does not have a GUI. Nor does RDA have an intelligent mechanism for detecting and automatically collecting data only for those Oracle products installed. Instead, you have to tell RDA what to do. There is a mind boggling large number of RDA data collection modules which you can configure RDA to use. It is easier, however, to setup RDA to use a "Profile". A profile consists of a list of data collection modules and predefined settings. As such profiles can be used to diagnose a problem with a particular product or combination of products. How to run RDA with a profile? ( <rda> represents the command you selected to run RDA (for example, rda.pl, rda.cmd, rda.sh, and perl rda.pl).) 1. Use the embedded spreadsheet to find the RDA profile which is appropriate for your problem / chosen Oracle Fusion Middleware products. 2. Use the following command to perform the setup <rda> -S -p <profile_name>  3. Run the data collection <rda> Run the data collection. If you want to perform setup and run in one go, then use a command such as the following: <rda> -vnSCRP -p <profile name> For more information, refer to: Remote Diagnostic Agent (RDA) 4 - Profile Manual Pages [ID 391983.1] Additional Hints / Tips: 1. Be careful! Profile names are case sensitive.2. When profiles are not used, RDA considers all existing modules by default. For example, if you have downloaded RDA for the first time and run the command <rda> -S you will see prompts for every RDA collection module many of which will be of no interest to you. Also, you may, in your haste to work through all the questions, forget to say "Yes" to the collection of data that is pertinent to your particular problem or product. Profiles avoid such tedium and help ensure the right data is collected at the first time of asking.

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  • C#/.NET Fundamentals: Choosing the Right Collection Class

    - by James Michael Hare
    The .NET Base Class Library (BCL) has a wide array of collection classes at your disposal which make it easy to manage collections of objects. While it's great to have so many classes available, it can be daunting to choose the right collection to use for any given situation. As hard as it may be, choosing the right collection can be absolutely key to the performance and maintainability of your application! This post will look at breaking down any confusion between each collection and the situations in which they excel. We will be spending most of our time looking at the System.Collections.Generic namespace, which is the recommended set of collections. The Generic Collections: System.Collections.Generic namespace The generic collections were introduced in .NET 2.0 in the System.Collections.Generic namespace. This is the main body of collections you should tend to focus on first, as they will tend to suit 99% of your needs right up front. It is important to note that the generic collections are unsynchronized. This decision was made for performance reasons because depending on how you are using the collections its completely possible that synchronization may not be required or may be needed on a higher level than simple method-level synchronization. Furthermore, concurrent read access (all writes done at beginning and never again) is always safe, but for concurrent mixed access you should either synchronize the collection or use one of the concurrent collections. So let's look at each of the collections in turn and its various pros and cons, at the end we'll summarize with a table to help make it easier to compare and contrast the different collections. The Associative Collection Classes Associative collections store a value in the collection by providing a key that is used to add/remove/lookup the item. Hence, the container associates the value with the key. These collections are most useful when you need to lookup/manipulate a collection using a key value. For example, if you wanted to look up an order in a collection of orders by an order id, you might have an associative collection where they key is the order id and the value is the order. The Dictionary<TKey,TVale> is probably the most used associative container class. The Dictionary<TKey,TValue> is the fastest class for associative lookups/inserts/deletes because it uses a hash table under the covers. Because the keys are hashed, the key type should correctly implement GetHashCode() and Equals() appropriately or you should provide an external IEqualityComparer to the dictionary on construction. The insert/delete/lookup time of items in the dictionary is amortized constant time - O(1) - which means no matter how big the dictionary gets, the time it takes to find something remains relatively constant. This is highly desirable for high-speed lookups. The only downside is that the dictionary, by nature of using a hash table, is unordered, so you cannot easily traverse the items in a Dictionary in order. The SortedDictionary<TKey,TValue> is similar to the Dictionary<TKey,TValue> in usage but very different in implementation. The SortedDictionary<TKey,TValye> uses a binary tree under the covers to maintain the items in order by the key. As a consequence of sorting, the type used for the key must correctly implement IComparable<TKey> so that the keys can be correctly sorted. The sorted dictionary trades a little bit of lookup time for the ability to maintain the items in order, thus insert/delete/lookup times in a sorted dictionary are logarithmic - O(log n). Generally speaking, with logarithmic time, you can double the size of the collection and it only has to perform one extra comparison to find the item. Use the SortedDictionary<TKey,TValue> when you want fast lookups but also want to be able to maintain the collection in order by the key. The SortedList<TKey,TValue> is the other ordered associative container class in the generic containers. Once again SortedList<TKey,TValue>, like SortedDictionary<TKey,TValue>, uses a key to sort key-value pairs. Unlike SortedDictionary, however, items in a SortedList are stored as an ordered array of items. This means that insertions and deletions are linear - O(n) - because deleting or adding an item may involve shifting all items up or down in the list. Lookup time, however is O(log n) because the SortedList can use a binary search to find any item in the list by its key. So why would you ever want to do this? Well, the answer is that if you are going to load the SortedList up-front, the insertions will be slower, but because array indexing is faster than following object links, lookups are marginally faster than a SortedDictionary. Once again I'd use this in situations where you want fast lookups and want to maintain the collection in order by the key, and where insertions and deletions are rare. The Non-Associative Containers The other container classes are non-associative. They don't use keys to manipulate the collection but rely on the object itself being stored or some other means (such as index) to manipulate the collection. The List<T> is a basic contiguous storage container. Some people may call this a vector or dynamic array. Essentially it is an array of items that grow once its current capacity is exceeded. Because the items are stored contiguously as an array, you can access items in the List<T> by index very quickly. However inserting and removing in the beginning or middle of the List<T> are very costly because you must shift all the items up or down as you delete or insert respectively. However, adding and removing at the end of a List<T> is an amortized constant operation - O(1). Typically List<T> is the standard go-to collection when you don't have any other constraints, and typically we favor a List<T> even over arrays unless we are sure the size will remain absolutely fixed. The LinkedList<T> is a basic implementation of a doubly-linked list. This means that you can add or remove items in the middle of a linked list very quickly (because there's no items to move up or down in contiguous memory), but you also lose the ability to index items by position quickly. Most of the time we tend to favor List<T> over LinkedList<T> unless you are doing a lot of adding and removing from the collection, in which case a LinkedList<T> may make more sense. The HashSet<T> is an unordered collection of unique items. This means that the collection cannot have duplicates and no order is maintained. Logically, this is very similar to having a Dictionary<TKey,TValue> where the TKey and TValue both refer to the same object. This collection is very useful for maintaining a collection of items you wish to check membership against. For example, if you receive an order for a given vendor code, you may want to check to make sure the vendor code belongs to the set of vendor codes you handle. In these cases a HashSet<T> is useful for super-quick lookups where order is not important. Once again, like in Dictionary, the type T should have a valid implementation of GetHashCode() and Equals(), or you should provide an appropriate IEqualityComparer<T> to the HashSet<T> on construction. The SortedSet<T> is to HashSet<T> what the SortedDictionary<TKey,TValue> is to Dictionary<TKey,TValue>. That is, the SortedSet<T> is a binary tree where the key and value are the same object. This once again means that adding/removing/lookups are logarithmic - O(log n) - but you gain the ability to iterate over the items in order. For this collection to be effective, type T must implement IComparable<T> or you need to supply an external IComparer<T>. Finally, the Stack<T> and Queue<T> are two very specific collections that allow you to handle a sequential collection of objects in very specific ways. The Stack<T> is a last-in-first-out (LIFO) container where items are added and removed from the top of the stack. Typically this is useful in situations where you want to stack actions and then be able to undo those actions in reverse order as needed. The Queue<T> on the other hand is a first-in-first-out container which adds items at the end of the queue and removes items from the front. This is useful for situations where you need to process items in the order in which they came, such as a print spooler or waiting lines. So that's the basic collections. Let's summarize what we've learned in a quick reference table.  Collection Ordered? Contiguous Storage? Direct Access? Lookup Efficiency Manipulate Efficiency Notes Dictionary No Yes Via Key Key: O(1) O(1) Best for high performance lookups. SortedDictionary Yes No Via Key Key: O(log n) O(log n) Compromise of Dictionary speed and ordering, uses binary search tree. SortedList Yes Yes Via Key Key: O(log n) O(n) Very similar to SortedDictionary, except tree is implemented in an array, so has faster lookup on preloaded data, but slower loads. List No Yes Via Index Index: O(1) Value: O(n) O(n) Best for smaller lists where direct access required and no ordering. LinkedList No No No Value: O(n) O(1) Best for lists where inserting/deleting in middle is common and no direct access required. HashSet No Yes Via Key Key: O(1) O(1) Unique unordered collection, like a Dictionary except key and value are same object. SortedSet Yes No Via Key Key: O(log n) O(log n) Unique ordered collection, like SortedDictionary except key and value are same object. Stack No Yes Only Top Top: O(1) O(1)* Essentially same as List<T> except only process as LIFO Queue No Yes Only Front Front: O(1) O(1) Essentially same as List<T> except only process as FIFO   The Original Collections: System.Collections namespace The original collection classes are largely considered deprecated by developers and by Microsoft itself. In fact they indicate that for the most part you should always favor the generic or concurrent collections, and only use the original collections when you are dealing with legacy .NET code. Because these collections are out of vogue, let's just briefly mention the original collection and their generic equivalents: ArrayList A dynamic, contiguous collection of objects. Favor the generic collection List<T> instead. Hashtable Associative, unordered collection of key-value pairs of objects. Favor the generic collection Dictionary<TKey,TValue> instead. Queue First-in-first-out (FIFO) collection of objects. Favor the generic collection Queue<T> instead. SortedList Associative, ordered collection of key-value pairs of objects. Favor the generic collection SortedList<T> instead. Stack Last-in-first-out (LIFO) collection of objects. Favor the generic collection Stack<T> instead. In general, the older collections are non-type-safe and in some cases less performant than their generic counterparts. Once again, the only reason you should fall back on these older collections is for backward compatibility with legacy code and libraries only. The Concurrent Collections: System.Collections.Concurrent namespace The concurrent collections are new as of .NET 4.0 and are included in the System.Collections.Concurrent namespace. These collections are optimized for use in situations where multi-threaded read and write access of a collection is desired. The concurrent queue, stack, and dictionary work much as you'd expect. The bag and blocking collection are more unique. Below is the summary of each with a link to a blog post I did on each of them. ConcurrentQueue Thread-safe version of a queue (FIFO). For more information see: C#/.NET Little Wonders: The ConcurrentStack and ConcurrentQueue ConcurrentStack Thread-safe version of a stack (LIFO). For more information see: C#/.NET Little Wonders: The ConcurrentStack and ConcurrentQueue ConcurrentBag Thread-safe unordered collection of objects. Optimized for situations where a thread may be bother reader and writer. For more information see: C#/.NET Little Wonders: The ConcurrentBag and BlockingCollection ConcurrentDictionary Thread-safe version of a dictionary. Optimized for multiple readers (allows multiple readers under same lock). For more information see C#/.NET Little Wonders: The ConcurrentDictionary BlockingCollection Wrapper collection that implement producers & consumers paradigm. Readers can block until items are available to read. Writers can block until space is available to write (if bounded). For more information see C#/.NET Little Wonders: The ConcurrentBag and BlockingCollection Summary The .NET BCL has lots of collections built in to help you store and manipulate collections of data. Understanding how these collections work and knowing in which situations each container is best is one of the key skills necessary to build more performant code. Choosing the wrong collection for the job can make your code much slower or even harder to maintain if you choose one that doesn’t perform as well or otherwise doesn’t exactly fit the situation. Remember to avoid the original collections and stick with the generic collections.  If you need concurrent access, you can use the generic collections if the data is read-only, or consider the concurrent collections for mixed-access if you are running on .NET 4.0 or higher.   Tweet Technorati Tags: C#,.NET,Collecitons,Generic,Concurrent,Dictionary,List,Stack,Queue,SortedList,SortedDictionary,HashSet,SortedSet

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  • Working with Backing Beans in JDeveloper - The Right Way

    - by shay.shmeltzer
    One nice feature that was in JDeveloper for a long time is the ability to automatically expose every component on your JSF page in a backing bean. While this is a nice "work saving" feature, you shouldn't be using this one in most cases. The reason is that it will create objects in your backing bean code for a lot of items you don't actually need to manipulate, making your code bigger and more complex to maintain. The right way of working is to expose only components you need in your backing bean - and JDeveloper makes this just as easy through the binding property in the property inspector and the edit option it has. Here is a quick video showing you how to do that:

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  • Polished DIY Projector Is Painted Right onto the Wall

    - by Jason Fitzpatrick
    If you’re contemplating building a projector screen but find yourself not entirely unhappy with just projecting right onto the wall, this simple paint-it-on-the-wall upgrade is for you. Check out the above video to see the steps required to patch, paint, and frame a space on your wall to serve as a projection screen. You’ll need spackle, sandpaper, white paint, and some very basic carpentry skills to complete the simple wood frame for your painted-on screen. If you’d like to create a screen using the same technique but make it removable (for adjustments or to take it with you when you move out) you can just as easily use the paint-it-on technique with a piece of hardboard instead of the drywall. [via Hack A Day] HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It HTG Explains: How Windows Uses The Task Scheduler for System Tasks

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  • HTML5 point and click adventure game code structure with CreateJS

    - by user1612686
    I'm a programming beginner. I made a tiny one scene point and click adventure game to try to understand simple game logic and came up with this: CreateJS features prototypes for creating bitmap images, sprites and sounds objects. I create them and define their properties in a corresponding function (for example images(); spritesheets(), sounds()...). I then create functions for each animation sequence and "game level" functions, which handle user interactions and play the according animations and sounds for a certain event (when the level is complete, the current level function calls the next level function). And I end up with quite the mess. What would be the "standard (if something like that exists)" OOP approach to structure simple game data and interactions like that? I thought about making game.images, game.sprites, game.sounds objects, which contain all the game data with its properties using CreateJS constructors. game.spriteAnimations and game.tweenAnimations objects for sprite animations and tweens and a game.levelN object, which communicates with a game.interaction object, processing user interaction. Does this make any sense? How do you structure your simple game code? Thanks in advance!

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  • Re-order active applications in right navigation bar

    - by gotqn
    I am using Ubuntu 12.04 and I want to know is there a way to re-order the item in my navigation bar. In windows 7 it is possible to group elements and re-order their position. To be more specific. When I new application is started, it is added in my right navigation bar (or bottom menu for windows). Is there a way ti drag the "Chrome" icon for example, and to move it below to Firefox one? Now, if i try to drag a icon, the all icons move.

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  • Choosing the Right Financial Consolidation and Reporting Solution

    Financial reporting requirements for publicly-held companies are changing and getting more complex. With the upcoming convergence of US GAAP and IFRS, demand for more detailed non-financial disclosures, and the SEC mandate for XBRL financial executives are under pressure to ensure they have the right systems in place to support current and future reporting requirements. Tune into this conversation with Rich Clayton, VP of Enterprise Performance Management and BI products for Oracle, and Annette Melatti, Senior Director of Product Marketing for Financial Applications to learn about the latest market requirements, what capabilities are provided by Oracle's General Ledgers, and how customers can extend their investment in Oracle General Ledger solutions with Oracle's market-leading financial close and reporting products.

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  • Direction of the bullet - how to have something else than left, right, top, bottom

    - by Florian Margaine
    I'm making a simple shooter game using canvas and javascript. The current code can be seen here. To know which way I want the bullet to be shot, I simply have a direction property that can have 4 values (left, right, bottom, top), and I can then calculate the next position of the bullet easily. However, I'd like to move the bullet to the mouse position, but I don't really see how to do this. How do I calculate the next position? I'm guessing there is some formula to calculate the line between two positions (the player's and the mouse's), but I don't have much idea yet. So there is no obstacle, but I don't see how to calculate this, and be able have the next position of the bullet at each frame.

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  • Learning PostgreSql: old versions of rows are stored right in the table

    - by Alexander Kuznetsov
    PostgreSql features multi-version concurrency control aka MVCC. To implement MVCC, old versions of rows are stored right in the same table, and this is very different from what SQL Server does, and it leads to some very interesting consequences. Let us play with this thing a little bit, but first we need to set up some test data. Setting up. First of all, let us create a numbers table. Any production database must have it anyway: CREATE TABLE Numbers ( i INTEGER ); INSERT INTO Numbers ( i ) VALUES...(read more)

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  • converting a mouse click to a ray

    - by Will
    I have a perspective projection. When the user clicks on the screen, I want to compute the ray between the near and far planes that projects from the mouse point, so I can do some ray intersection code with my world. I am using my own matrix and vector and ray classes and they all work as expected. However, when I try and convert the ray to world coordinates my far always ends up as 0,0,0 and so my ray goes from the mouse click to the centre of the object space, rather than through it. (The x and y coordinates of near and far are identical, they differ only in the z coordinates where they are negatives of each other) GLint vp[4]; glGetIntegerv(GL_VIEWPORT,vp); matrix_t mv, p; glGetFloatv(GL_MODELVIEW_MATRIX,mv.f); glGetFloatv(GL_PROJECTION_MATRIX,p.f); const matrix_t inv = (mv*p).inverse(); const float unit_x = (2.0f*((float)(x-vp[0])/(vp[2]-vp[0])))-1.0f, unit_y = 1.0f-(2.0f*((float)(y-vp[1])/(vp[3]-vp[1]))); const vec_t near(vec_t(unit_x,unit_y,-1)*inv); const vec_t far(vec_t(unit_x,unit_y,1)*inv); ray = ray_t(near,far-near); What have I got wrong? (How do you unproject the mouse-point?)

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  • What is the right way to do this HTML: header with icon linked

    - by Hell Awaits
    I know how to make these examples look and behave the same. But I would like to know which is the right way to build a HTML structure. <a><img><h1></h1></a> - looks wrong because an inline element is inside of a block element <a><img></a><h1><a></a></h1> - the same a-element is defined twice. Also I'm not sure about markup inside headers Any other solutions ?

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  • Global UTF-encoding, the right way

    - by mowgli
    I'm curious, as to what is the right way to have UTF-8 encoding on all web files All my files (incl. CSS and JS) are made and saved in UTF-8 encoding In PHP, I set the char-set on top of the main page (this page includes all others) with: header('Content-type: text/html; charset=utf-8'); In the same page I have this html meta tag: <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> Then I stubled upon an external css file that has this on first line: @charset "UTF-8"; And now I wonder, should I set the charset INSIDE all my CSS/JS files too, like that? And/or should I serve each file with charset=utf-8 in the meta tag?

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  • Picking the Right Keywords For SEO Success

    It is important to realize that picking the right key words is crucial to your SEO success. Always remember that for search engine optimization, your end goal is to rank high in the search engines for key words most relevant and valuable to your web site. For example, if you run a pet dog business, you naturally want to rank high for key words such as 'pet dogs', 'dogs for sale', 'pet dogs for sale'. Better yet, you can narrow down the key words to target very specific niches such as 'chihuahua pet dogs, pet dogs for sale in Brooklyn' etc.

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  • LibreOffice hangs everytime I click into it

    - by Freddy
    I've searched askubuntu for a solution but couldn't find anything helpful for me. I installed the latest version of ubuntu (13.10; 64-bit) yesterday (so I'm relatively new and unexperienced about it) and some programs as well. Today I wanted to try the LibreOffice package which comes with ubuntu by default. So I first started LO Impress, it showed me the default slide where it says something like "Add your title/text here" (I don't know exactly, I'm using my system in German). As soon as i clicked on this text, my entire system didn't react, I couldn't even click the stuff in the upper right corner (where the date, shutdown functions etc. are), nor the items on the launcher bar on the left. After 10 seconds or so, everything seemed to work properly again. But when I clicked into the LO Impress again, the same procedure as described happened again (cmpletely stuck for about 10 sec). Anybody got a solution for this? If you need more information, just tell me. Thanks in advance!

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  • Last click counts link cookies

    - by user3636031
    I want to fix so my only the last click gets the cookie, here is my script: <script type="text/javascript"> document.write('<scr' + 'ipt type="text/javascript" src="' + document.location.protocol + '//sc.tradetracker.net/public/tradetracker/tracking/?e=dedupe&amp;t=js"></scr' + 'ipt>'); </script> <script type="text/javascript"> // The pixels. var _oPixels = { tradetracker: '<img id="tt" />', tradedoubler: '<img id="td" />', zanox: '<img id="zx" />', awin: '<img id="aw" />' }; // Run the dedupe. _ttDedupe( 'conversion', 'network' ); </script> <noscript> <img id="tt" /> <img id="td" /> <img id="zx" /> <img id="aw" /> </noscript> How can I get this right? Thanks!

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