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  • nouveu driver logs into unity-2d by default

    - by Ubuntuser
    I have an old system with NVIDIA Corporation NV25 [GeForce4 Ti 4600]. When running Ubuntu , the nouveau driver loads fine but does not log into Unity with compiz. Instead it logs into Unity-2D. Any idea how to enable 3D/ compiz with the nouveau driver. OS: Ubuntu 12.04 Beta2 The nvidia driver is no more available for this graphics card, so have to rely on nouveau. UPDATE: Bug reported on launchpad . See here. There has been no reply as yet to this bug-report - does anyone have any idea how to resolve this? Further information, Also, if I use kubuntu desktop, kwin graphics works just fine. But, the users prefer Unity over KDE so I have uninstalled Kubuntu.

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  • Open World Day 4

    - by Antony Reynolds
    A Day in the Life of an OpenWorld Attendee Part V Last day at OpenWorld.  The exhibits are closed, and the final few presentations are being given.  I spent much of the day meeting with customers to talk about SOA/OSB and Coherence.  Main event of the day was the farewell party which was loud and surprisingly well attended.  I was able to have lunch with Dave Felcey, Coherence PM, who has a great blog and is always ready to share his expertise with people. So that was OpenWOrld for another year.  I met a friend of a friend who attends OpenWorld every year and attends the Demo Grounds with a list of questions to ask people.  I think that illustrates the point that everyone approaches OpenWorld in a different way and looks to get different things from it.  For me OpenWorld is a great experience to feel the energy in Oracle and network with customers and partners.  Hope to see you there next year!

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  • Week in Geek: Google Chrome Becomes #1 Browser in the World for a Day

    - by Asian Angel
    Our last edition of WIG for March is filled with news link goodness such as 22% of users are keeping the Windows 8 Explorer Ribbon expanded, Facebook is upset with prospective employers asking for peoples’ account passwords, Firefox 14 nightly has added a new HTML5-based PDF viewer, and more. How To Properly Scan a Photograph (And Get An Even Better Image) The HTG Guide to Hiding Your Data in a TrueCrypt Hidden Volume Make Your Own Windows 8 Start Button with Zero Memory Usage

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  • Efficient way of detecting a touched object in a game?

    - by Pin
    Imagine a Sims-like 2D game for a touch based mobile phone where one can interact with virtually any object in the scene. How can I efficiently detect which object is being touched by the player? In my short experience, looping through all the visible objects in the scene and checking if they're touched has so far done the job, but when there may be many many moving objects in the screen that sounds kind of inefficient isn't it? Keeping the visible moving objects list can consume time in itself as one may have to loop through all of them each frame. Other solutions I've thought are: Spatial hashing. Divide the screen as a grid and place the visible objects in the corresponding bucket. Detection of the clicked object is fast but there's additional overhead for placing the objects in the correct bucket each frame. Maintaining a quad-tree. Moving objects have to be rearranged all the time, the previous solution looks better. What is usually done in this case?

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  • Hello World!

    - by sravan.sarraju(at)oracle.com
    Finally managed to get some space to publish my first post. I’m a Fusion Apps Developer @ Oracle with a modest 3 yrs of exp. I love learning new technologies and digging into things which usually ppl ignore. Through this blog I wil try to share my leanings,observations, tips, workarounds etc. on topics ranging from Apps to ByteCode. Watch out for this space. Hope I wil be able to pull off an interesting blog.

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  • Hello world

    - by tikrimi
    Hello all bloggers and readers of Geekswithblogs.net. To introduce myself, my name is Christopher Bonnevault, I am a consultant for Valtech. I work with the platform. Net since 2002 mostly in Asp.Net. I am very interested by agile methods, and this blog will be an opportunity for me to share with you some feedback about the different tools that I use in my projects. English is not my native language, so I am sorry in advance if my posts are not always understandable.

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  • Is it possible to map mouse coordinates to isometric tiles with this coordinate system?

    - by plukich
    I'm trying to implement mouse interaction in a 2D isometric game, but I'm not sure if it's possible given the coordinate system used for tile maps in the game. I've read some helpful things like this. However, this game's coordinate system is "jagged" (for lack of a better word), and looks like this: Is it even possible to map mouse coordinates to this successfully, since the y-axis can't be drawn on this tile-map as a straight line? I've thought about doing odd-y-value translations and even-y-value translations with two different matrices, but that only makes sense going from tile to screen.

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  • Viewport.Unproject - Checking if a model intersects a large sprite

    - by Fibericon
    Let's say I have a sprite, drawn like this: spriteBatch.Draw(levelCannons[i].texture, levelCannons[i].position, null, alpha, levelCannons[i].rotation, Vector2.Zero, scale, SpriteEffects.None, 0); Picture levelCannon as being a laser beam that goes across the entire screen. I need to see if my 3d model intersects with the screen space inhabited by the sprite. I managed to dig up Viewport.Unproject, but that seems to only be useful when dealing with a single point in 2d space, rather than an area. What can I do in my case?

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  • Channelling an explosion along a narrow passage

    - by finnw
    I am simulating explosions in a 2D maze game. If an explosion occurs in an open area, it covers a circular region (this is the easy bit.) However if an explosion occurs in a narrow passage (i.e narrower than the blast range) then it should be "compressed", so that it goes further and also it should go around corners. Ultimately, unless it is completely boxed-in, then it should cover a constant number of pixels, spreading in whatever direction is necessary to reach this total area. I have tried using a shortest-path algorithm to pick the nearest N pixels to the origin avoiding walls, but the effect is exaggerated - the blast travels around corners too easily, making U-turns even when there is a clear path in another direction. I don't know whether this is realistic or not but it is counter-intuitive to players who assume that they can hide around a corner and the blast will take the path of least resistance in a different direction. Is there a well-known (and fast) algorithm for this?

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  • Oracle Open World 2012 – Middleware update

    - by JuergenKress
    OpenWorld General Session 2012: Middleware In this general session, listen how developers leverage new innovations in their applications and customers achieve their business innovation goals with Oracle Fusion Middleware. We uploaded the key Fusion Middleware presentations (ppt format) in our SOA Community Workspace OFM OOW2012.pptx BPM Preview of Oracle BPM PS6.ppt and (Oracle Partner confidential) Please visit our SOA Community Workspace (SOA Community membership required). Read our First feedback from our ACE Directors: Guido Schmutz: My presentations at Oracle OpenWorld 2012 Lucas Jellema: OOW 2012 – Larry Ellison’s Keynote Announcements: Exa, Cloud, Database And from Antony Reynolds Many tweets #soacommunity with the latest OOW information have been posted on twitter. The First impressions are posted on our facebook page. 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 Mix Forum Technorati Tags: OOW 2012,OOW,presentations,slides,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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  • Determine how to display a tile based on surrounding tiles

    - by Jsmith
    I have a game engine which generates maps randomly, set on a 2d grid which is composed of 34px square graphical tiles. These tiles can be displayed in any of three ways, wall, corner, and floor(exists in 2 states, passable and impassible), and four directions, north, south, west and east. What I need to do is, based on the tiles around each individual tile, determine which state to display the tile in, e.g. north wall, northeast corner, floor so that when a player alters the map, the tiles around the affected tile adjust themselves to suit(i.e. tunneling). In case it becomes important, all gameobjects are inherited from the same class, whether they be players, NPC's, walls, or items.

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  • Clouds Aroud the World

    - by user12608550
    At the NIST Cloud Computing Workshop this week; representatives from Canada, China, and Japan presented on their cloud computing efforts. Some interesting points made: Canada: Building "Service Canada" cloud for all citizen services, but raised the issue of data location...cloud data must be within Canada border, so they will not focus on public clouds where they don't know or can't control data location. Japan: In response to the massive destruction of the Great East Japan Earthquake, Japan is building nation-wide cloud services to support disaster relief, data recovery, and support for rebuilding new communities. US Ambassador Philip Verveer discussed the need for international cooperation and standards development to enable interoperability of cloud services, keeping in mind cultural and political differences. Additionally, an industry panel reported on cloud standards development, including some actual interoperability testing at http://www.cloudplugfest.org. Much of the first two days of the workshop covered progress and action plans around the 10 High-Priority Requirements to Further USG Agency Cloud Computing Adoption. Thursday's sessions will cover the work of the various NIST Cloud Computing Working Groups on Reference Architecture and Taxonomy Standards Acceleration to Jumpstart the Adoption of Cloud Computing (SAJACC) Cloud Security Standards Roadmap Business Use Cases (see Working Groups of NIST Cloud Computing )

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  • Hello SSIS World, From XML!

    This article brings us an SSIS package that reads an XML file and sequentially displays each XML record in a MessageBox before inserting it into a staging table. You can use this to get XML data into your SQL Server database for further processing.

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  • 2D XNA Game Engine with a Good Wiki [closed]

    - by gcx
    I'm a newbie game developer. I'm planning to develop a XBOX (with a Kinect to double the fun) game. I've researched some 2D game engines that i can use in my project. After some research I've found IceCream engine and it looks delicious with its Milkshake editor. But I can't seem to find "working" game source examples for that engine and its own website's tutorial is not very sufficent. (If you are familiar with this engine) do you know any community that has helpful resources for this particular engine? If not, which engines do you recommend (that has a great wiki) for a XNA based XBOX - Kinect game?

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  • Starting out with 2D cross-platform game development [closed]

    - by Aran
    I am wanting to challenge myself to build a simple game, that has a character and a randomly generated world. If I get anywhere with it I may perhaps I'll develop it into something more, but the key challenge I want to tackle is cross-platform. I'd also want to have a go at creating engine myself, doing lighting and other bits. Is it worth me using a system like Unity or do I go down a more custom route? The game I would like to make is a 2D game so whether that changes the tools I should use, it would be great to know as well. Supporting mobiles isn't something I am worried about at moment, just looking for Mac and Windows for time being. In future I'll consider other platforms if I get anywhere with the development. So if anyone has any recommendations for a language, engine or system to use would love to her your thoughts.Including pros and cons would be helpful and appreciated and if you can do comparisons that would be awesome as well!

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  • How to handle jumping up a slope in a runner game?

    - by you786
    In an 2D endless runner, what should happen when the player is running "too fast" up a slope and jumps? For example, in a "normal" case: .O. . __..O_____ . / . / O/ _/ If he is moving to the right slowly enough, he will jump upwards and land on the flat part of the surface. However, if he is moving too fast, the jump will have no effect as his forward motion will bring him back in contact with the slope before he can get high enough to pass over it. When the speed is sufficiently high, there will effectively be no jump. _________ / .O/ O/ _/ Are there any known ways to solve this issue? I know it's physically correct*, but are there techniques that other games use to overcome this in a reasonable manner? As a last resort I'll have to just remove all slopes that are too slanted. *If you constrain the player to never jumping backwards.

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  • Lag compensation with networked 2D games

    - by Milo
    I want to make a 2D game that is basically a physics driven sandbox / activity game. There is something I really do not understand though. From research, it seems like updates from the server should only be about every 100ms. I can see how this works for a player since they can just concurrently simulate physics and do lag compensation through interpolation. What I do not understand is how this works for updates from other players. If clients only get notified of player positions every 100ms, I do not see how that works because a lot can happen in 100ms. The player could have changed direction twice or so in that time. I was wondering if anyone would have some insight on this issue. Basically how does this work for shooting and stuff like that? Thanks

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  • hotkeys do not work sometimes in ubuntu 12.04

    - by stepank
    I use Ubuntu 12.04 with Unity 2D and I've stumbled upon this issue: sometimes shortcut keys stop working in some windows. For instance, I have these windows opened usually: Google Chrome, Terminal, Skype, Pidgin. Sometimes everything is OK and shortcuts work no matter what window I hit them from, however, hotkeys hit from Skype (more often) or Pidgin (less often) do not work, but they still work from Terminal or Google Chrome. Moreover, not all hotkeys are affected, the problem holds only for locking the computer (Ctrl + Alt + L) and other custom shortcuts like executing some command or launching a program (I used zenity --entry with [Super | Ctrl] + [some letter: K, N, etc] for testing). Does anyone have a clue what is causing the problem and how to fix it?

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  • How to create a Raining Effect(Particles) on Android?

    - by user19495
    I am developing a 2d android strategy game, it runs on SurfaceView, so I can't(or can I?) use LibGdx's particle system. And I would like to make a raining effect, I am aiming for something like this( http://ridingwiththeriver.files.wordpress.com/2010/09/rain-fall-animation.gif ), I don't need the splash effect in the end (although that would be superb, but probably would take up a lot of system resources). How could I achieve that raining effect? Any ideas? Thank You a lot in advance!

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