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• CodePlex Daily Summary for Monday, October 01, 2012

  CodePlex Daily Summary for Monday, October 01, 2012Popular ReleasesD3 Loot Tracker: 1.4.1: This version will automatically save a recording session on application exit if the user didn't stop the current session.CRM 2011 Visual Ribbon Editor: Visual Ribbon Editor (1.2.1001.1): Visual Ribbon Editor 1.2.1001.1 What's New: Ability to hide currently selected tab Password in the connection file is now being encrypted Esc and Enter keyboard keys are now supported in all dialogs Extended width of Prefix and Id fields in New Button and New Group dialogs Minor UI enchancements for Hide Button button Minor UI enchancements for View XML button and dialog File/assembly versioning for executable file Notes: Existing plain-text password will be automatically encrypt...Untangler: Untangler: First version of Untangler application available now.SubExtractor: Release 1029: Feature: Added option to make i and ¡ characters movie-specific for improved OCR on Spanish subs (Special Characters tab in Options) Feature: Allow switch to Word Spacing dialog directly from Spell Check dialog Fix: Added more default word spacings for accented characters Fix: Changed Word Spacing dialog to show all OCR'd characters in current sub Fix: Removed application focus grab during OCR Fix: Tightened HD subs fuzzy logic to reduce false matches in small characters Fix: Improved Arrow k...MCEBuddy 2.x: MCEBuddy 2.2.18: Reccomended download Changelog for 2.2.18 (32bit and 64bit) 1. Added support for checking if Showanalyzer has hung and cancelling it 2. New version of comskip, 0.81.48 3. Speeding up comskip 4. Fixed a build bug in 64bit 2.2.17 5. Added a new comkip.ini, better commercial detection for international channels and less aggressive. Old one has been retained as comskip_old.ini 6. Added support for Audio Offset on Conversion Task page in GUI (this overrides the profiles AudioDelay when specified)Mugen Injection: Mugen Injection 3.0: Added a generic version of the fluent syntax. Big changes in fluent-syntax. Added support to resolve a parameters: - Factory: AnyCustomFunc{T}, AnyCustomFunc{IEnumerable<IInjectionParameters>,T}, AnyCustomFunc{IDictionary<string, object>,T}, AnyCustomFunc{IEnumerable<IInjectionParameters>,IDictionary<string, object>,T} - Lazy: AnyCustomLazy<T> - Binding metadata: ISetting Change binding builders, now you can configure them through the string settings. Increase performance. F...Aggravation: Version 1.0: This version 1.0 release is pretty stable. You need the Silverlight 4 runtime, developer tools, and Experssion Blend 4 installed.Tube++: Tube++ 4.0.0.43: Fix parser for downloading and add new default slate gray styleReadable Passphrase Generator: KeePass Plugin 0.7.1: See the KeePass Plugin Step By Step Guide for instructions on how to install the plugin. Changes Built against KeePass 2.20Windows 8 Toolkit - Charts and More: Beta 1.0: The First Compiled Version of my LibraryCatchThatException: Release 1.0: This is the first relase for CatchThatException library at 29-9-2012CardPlay: a Solitaire Framework for .Net: 0.3.0: Added 5 games: Blockade, Chessboard, Colorado, Sly Fox, TwentyUltraFluid Modeling Suite: Beta 1: This release is experimental but contains a lot of features like: - xml serialization - multiple selection - clipboard copy/cut/paste on context menu There is the debug and the release (recommanded default) versions.PDF.NET: PDF.NET.Ver4.5-OpenSourceCode: PDF.NET Ver4.5 ????，????Web??????。 PDF.NET Ver4.5 Open Source Code,include a sample Web application project.Visual Studio Icon Patcher: Version 1.5.2: This version contains no new images from v1.5.1 Contains the following improvements: Better support for detecting the installed languages The extract & inject commands won’t run if Visual Studio is running You may now run in extract or inject mode The p/invoke code was cleaned up based on Code Analysis recommendations When a p/invoke method fails the Win32 error message is now displayed Error messages use red text Status messages use green textZXing.Net: ZXing.Net 0.9.0.0: On the way to a release 1.0 the API should be stable now with this version. sync with rev. 2393 of the java version improved api better Unity support Windows RT binaries Windows CE binaries new Windows Service demo new WPF demo WindowsCE Hotfix: Fixes an error with ISO8859-1 encoding and scannning of QR-Codes. The hotfix is only needed for the WindowsCE platform.C.B.R. : Comic Book Reader: CBR 0.7: Synthesis since 0.6 : ePUB : Complete refactoring Add a new dedicated feed viewer for opds stream PDF conversion : improved with image merge Make all backstage panel scrollable Integrate the new AvalonDock 2 library. Support multi-document. Library explorer and Table of content are now toolboxes Designer for dynamic books is now mvvm and much better New BrowserForControl Customized xps viewer to suppress toolbars and bind it to cbr commands Add quick start manual and button ...sosoft: sosoft source: sosoft source include alarm clockRawr: Rawr 5.0.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr Addon (NOT UPDATED YET FOR MOP)We now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including ba...Coevery - Free CRM: Coevery 1.0.0.26: The zh-CN issue has been solved. We also add a project management module.New ProjectsAmazonGlacierGUI - GUI Client for Amazon Glacier | WPF: a GUI client for amazon glacier , Written in .NET 4, C#,WPF,MVVM & RavenDB for storageAthene: UML editor.Basic Helpdesk Application: Develop a simple application to be used in a network environment to aid support staff while working remotely with users to resolve problems in their local PC.CAPTCHA Solver: CSolver, is a CAPTCHA Solver for Simple CAPTCHAs.ComicExt: ComicExt Works with CBZ files decompress them into a folder of the same name and convert them into zip files and vice versa from a single folder.Copy Your Table Storage: Tool to permit copy table storage dotCMS: it is a content management system base on BlogEngine.NET and Ext.NETihongma??: ?????????????????????????，????????????????、??????，?????????????????????????????，??????????????????????。 ??????????????，??????；???????????????，???????Liam F: Basic mathematical functions implemented using AVX/AVX2MVC Solution: MVC Solution, including many mvc best practicesopengltest: opengl testsample project: Testing...Sériethèque: A small tvshow organizer with viewed option, link to addict7ed.com, rename file etc ...SHOIC (SUPER HIGH ORBIT ION CANION): SHOIC (Super Hight Orbit Ion Canion) es una aplicación derivada de LOIC (Low Orbit Ion Canion)SignalRServerTry: signal r trySilverlight Datagrid Plus: Silverlight Datagrid plus adds basic features to the Silverlight toolkit datagrid such as grouping, filtering, new record and formatting of the datagrid.Sitecore Modules: This is a home for all the Sitecore Shared Source modules distributed by 5 Limes. Over time we expect this solution to contain several projects.Spiritual Chanting Utility: A quick media loop utilitySQL Web Studio Pad: A Simple Web Based SQL Management IDE for managing Database objectsStockmarket Simulation: Stockmarket Simulationtest_proj: ok testTISSEAN.NET: This project is based on: TISEAN 3.0.1 Nonlinear Time Series Analysis Rainer Hegger,Holger Kantz, Thomas Schreiber With major contributions by Eckehard OlbrichUntangler: Class hierarchy viewer for .Net assemblyValarmathi Hospital: Patient management.Windows 8 App For SharePoint Online: Windows 8 app to SharePoint 2013 OnlineWPF Anti-DataBinding Anti-DataTemplate Extensions: WPF Anti-DataBinding Anti-DataTemplate Extensions offers a pure C# code-behind (no XAML) approach to working with WPF controls, starting with the WPF ListBox.Yandex Positions Parser: ?????? ??????? ????? ? ?????? ??????? ?? ???????? ???????? ??????.YunCMS: A simple CMS for build protal site.

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• How to produce assets effectively on large Flash game projects?

  - by Antoine Lassauzay

  I have been working on Flash games professionally for two years now and somehow, having our artists producing assets the right way is one of our biggest challenge. More precisely, it is very hard to have them following any kind of structure and/or standards, nor taking into consideration performance. I would say also the most of our issues concerns UI and related animations. Our current workflow is (on a Facebook hidden object game) : Artists produce PSD and animate prototypes in Flash Artists re-organize their FLA files to be a bit more "programmer friendly" Programmers retouches assets until they have the right structure and export classes inside a SWC, from Flash Programmers try to improve performances, sometimes degrading the quality of game graphics Our main idea is to hire somebody dedicated to prepare assets for programmers but I am really looking forward to improving the pipeline. I was wondering if you guys have tips of any kind to improve this workflow, whether it be team organization, training, tools or tips with Flash. Any explanation on your asset pipeline is well appreciated too.

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• Ogre3D, OGRE_NEW gives editor errors

  - by automaticoo

  Hello Game Developers, I am trying to get more experienced with OGRE3D and I am following the basic tutorials on the website. All the code samples compile just fine. The first time I encountered a "error" was in Basic Tutorurial 3. The code line where visual studio says something is not right is : mTerrainGroup = OGRE_NEW Ogre::TerrainGroup(mSceneMgr, Ogre::Terrain::ALIGN_X_Z, 513, 12000.0f); Visual studio compiles this line but it shows a ugly red line beneath it and on mouse hover it says "#define OGRE_NEW new (FILE, LINE, FUNCTION) Error: no instance of overloaded 'operator new' matches the argument list" or if I mouse hover over Ogre::TerrainGlobalOptions() it says "Error: expected a type specifier". I searched on google but couldn't find my answer. I got about a year c++ experience but that was mainly with the WinSock libarys. Thanks in advance.

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• How to detect collisions in AS3?

  - by Gabriel Meono

  I'm trying to make a simple game, when the ball falls into certain block, you win. Mechanics: The ball falls through several obstacles, in the end there are two blocks, if the ball touches the left block you win, the next level will contain more blocks and less space between them. Test the movie (click on the screen to drop the ball): http://gabrielmeono.com/downloads/Lucky_Hit_Alpha.swf These are the main variables: var winBox:QuickObject;//You win var looseBox:QuickObject;//You loose var gameBall:QuickObject;//Ball dropped Question: How do I trigger a collision function if the ball hits the winBox? (Win message/Next level) Thanks, here is the full code: package { import flash.display.MovieClip; import com.actionsnippet.qbox.*; import flash.events.MouseEvent; [SWF(width = 600, height = 600, frameRate = 60)] public class LuckyHit extends MovieClip { public var sim:QuickBox2D; var winBox:QuickObject; var looseBox:QuickObject; var gameBall:QuickObject; /** * Constructor */ public function LuckyHit() { sim = new QuickBox2D(this); //sim.createStageWalls(); winBox = sim.addBox({x:5,y:600/30, width:300/30, height:10/30, density:0}); looseBox = sim.addBox({x:15,y:600/30, width:300/30, height:10/30, density:0}); // make obstacles for (var i:int = 0; i<(stage.stageWidth/50); i++){ //End sim.addCircle({x:1 + i * 1.5, y:16, radius:0.1, density:0}); sim.addCircle({x:2 + i * 1.5, y:15, radius:0.1, density:0}); //Mid End sim.addCircle({x:0 + i * 2, y:14, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:13, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:12, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:11, radius:0.1, density:0}); sim.addCircle({x:0 + i * 2, y:10, radius:0.1, density:0}); //Middle Start sim.addCircle({x:0 + i * 1.5, y:09, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:08, radius:0.1, density:0}); sim.addCircle({x:0 + i * 1.5, y:07, radius:0.1, density:0}); sim.addCircle({x:1 + i * 1.5, y:06, radius:0.1, density:0}); } sim.start(); stage.addEventListener(MouseEvent.CLICK, _clicked); } /** * .. * @param e MouseEvent.CLICK */ private function _clicked(e:MouseEvent) { gameBall = sim.addCircle({x:(mouseX/30), y:(1), radius:0.25, density:5}); } } }

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• Multiple render targets and pixel shader outputs terminology

  - by Rei Miyasaka

  I'm a little confused on the jargon: does Multiple Render Targets (MRT) refer to outputting from a pixel shader to multiple elements in a struct? That is, when one says "MRT is to write to multiple textures", are multiple elements interleaved in a single output texture, or do you specify multiple discrete output textures? By the way, from what I understand, at least for DX9, all the elements of this struct need to be of the same size. Does this restriction still apply to DX11?

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• Ray-plane intersection to find the Z of the intersecting point

  - by Jenko

  I have a rectangle in 3d space (p1, p2, p3, p4) and when the mouse rolls over it I need to calculate the exact Z of the point on the rect, given the mouse coordinates (x, y). Would a Ray-plane intersection find the Z of the intersecting point? Edit: Would this one-liner work? .. it returns the t value for the intersection, apparently the Z value. float rayPlane(vector3D planepoint, vector3D normal, vector3D origin, vector3D direction){ return -((origin-planepoint).dot(normal))/(direction.dot(normal)); }

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• What should be contained in a game scene graph?

  - by Bunkai.Satori

  Would you help me to clarify, please, what what exactly should be contained within a game scene graph? See the following list, please: Game Actors? (obviously yes, all the objects changing state should be the major prart of the Scene Graph) Simple static game ojbects? (I mean ojects places in the background that do not get animated, neither do they collide) Game Triggers? Game Lights? Game Cameras? Weapon Bullets? Game Explosions and Special Effects? The above considered object types. Now to the coverage of the scene graph: Should a scene graph contain the whole game level map since the level start, or should it contain only the visible portion of the map? If the second is true, it would mean that scene graph would be continuously updated, by adding/removing game objects, as the player moves. However, containing only the visible are of the map obviously would be much faster to traverse and update.

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• Android in-game pause screen

  - by Max

  Right now Im calling a new activity with an xml-view when I pause my game, but Since I do this I need to use context in my real-time code, and this is causing a memory leak. Is there any preffered way to pause the game? By pause I mean if game is over, if I die, or if I press pause-button. Would a custom dialog work just aswell? this would mean I wont have to leave my main-activity while im in-game.

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• create a simple game board android

  - by user2819446

  I am a beginner in Android and I want to create a very simple 2D game. I've already programmed a Tic-Tac-Toe game. The drawing of the game board and connecting it with my game and input logic was quite difficult (as it was done separately, canvas drawing, calculating positions, etc). By now I figured out that there must be a simpler way. All I want is a simple grid; something like this: http://www.blelb.com/deutsch/blelbspots/spot29/images/hermannneg.gif. The edges should be visible and black, and each cell editable, containing either an image or nothing, so I can detect if the player is on that cell or not, move it... Think of it as Chess or something similar. Searching the internet during the last days, I am a bit overwhelmed of all the different options. After all, I think Gridview or Gridlayout is what I am searching for, but I'm still stuck. I hope you can help me with some good advice or maybe a link to a nice tutorial. I have checked several already, and none were exactly what I was searching for.

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• This code is of chess game. What is represented by 'DISTANCE' in code? [closed]

  - by rajeshverma423

  package chess; public class Evaluate { public static final int PIECE_KING = 0; public static final int PIECE_QUEEN = 1; public static final int PIECE_ROOK = 2; public static final int PIECE_BISHOP = 3; public static final int PIECE_KNIGHT = 4; public static final int PIECE_PAWN = 5; public static final int FULL_BIT_RANK = 4080; public static final int LAZY_MARGIN = 100; public static final int ISOLATED_PENALTY = 10; public static final int DOUBLE_PENALTY = 4; public static final int[] PIECE_VALUE = { 0, 9, 5, 3, 3, 1 }; public static final int[] PASS_PAWN = { 0, 35, 30, 20, 10, 5 }; public static final byte[] DISTANCE = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 5, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 5, 4, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 7, 6, 5, 4, 3, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 7, 6, 5, 4, 3, 2, 1, 2, 3, 4, 5, 6, 7, 0, 0, 7, 6, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 0, 0, 7, 6, 5, 4, 3, 2, 1, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 7, 6, 5, 4, 3, 2, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 7, 6, 5, 4, 3, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 5, 4, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 5, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 6, 7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7 };

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• What is the best practice to move sprites using mouse order in Tile games?

  - by Robin-Hood

  I am trying to make my first Tile-game using XNA. I have no problem drawing the map layers using TiledLib from codeplex, but, now I want to give sprite an (order) to move to a specific position on map, by selecting the sprite (left mouse click) and then right mouse click somewhere on the map to specify the target position. I don’t know what is the best practice to move sprite this way, considering that there may be collision objects in the direct path. what is the best practice to do this? Is there any demo covering this issue? thanks. BTW: I couldn’t upload snapshot because of my low score :(

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• Questions about XNA

  - by Maik Klein

  I've read tons of different threads about XNA, but I still have some questions. First of all: I have 2 years of experience programming and C# is my main language, so XNA would fit perfectly for me, but I have some concerns. People mentioned that C# has a performance loss compared to C++. Is this true? XNA only supports DirectX 9. I found the ANX framework which is pretty similar to XNA but it is capable of DirectX 11. Would this be a good alternative ? Because I'm worried about the performance loss of C#, I searched for a C++ framework and found SFML. It's based on C++ but can be integrated into C#. I already have some experience with UDK, but I am really interested in creating more by myself ( lighting physics etc ). I didn't start yet, what would you recommend me to use / learn ? I am going to create a first person shooter (3D) and I have plenty of time for this. My aim is realtime lighting, realtime global illumination, image-based reflections etc. I want to develop for Windows. Edit: I found something interesting: OpenTK. It supports the latest version of OpenGL which is on the same level as DX11 (if my knowledge is correct). It makes use of mono.

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• How to sync the actions in a mutiplayer game?

  - by Wheeler

  I connect the clients with UDP (its a peer to peer connection on a multicast network) and the clients are sending their positions in every frame (in WP7 it means the default 30 FPS) to each other. This game is kinda a pong game, and my problem is the next: whenever the opponent hits the ball the angle will not be the same on both mobiles. I think its because the latency (1 pixel difference can cause a different angle). So my question is: how can I sync the hitting event?

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• How can I make OpenGL textures scale without becoming blurry?

  - by adorablepuppy

  I'm using OpenGL through LWJGL. I have a 16x16 textured quad rendering at 16x16. When I change it's scale amount, the quad grows, then becomes blurrier as it gets larger. How can I make it scale without becoming blurry, like in Minecraft. Here is the code inside my RenderableEntity object: public void render(){ Color.white.bind(); this.spriteSheet.bind(); GL11.glBegin(GL11.GL_QUADS); GL11.glTexCoord2f(0,0); GL11.glVertex2f(this.x, this.y); GL11.glTexCoord2f(1,0); GL11.glVertex2f(getDrawingWidth(), this.y); GL11.glTexCoord2f(1,1); GL11.glVertex2f(getDrawingWidth(), getDrawingHeight()); GL11.glTexCoord2f(0,1); GL11.glVertex2f(this.x, getDrawingHeight()); GL11.glEnd(); } And here is code from my initGL method in my game class GL11.glEnable(GL11.GL_TEXTURE_2D); GL11.glClearColor(0.46f,0.46f,0.90f,1.0f); GL11.glViewport(0,0,width,height); GL11.glOrtho(0,width,height,0,1,-1); And here is the code that does the actual drawing public void start(){ initGL(800,600); init(); while(true){ GL11.glClear(GL11.GL_COLOR_BUFFER_BIT); for(int i=0;i<entities.size();i++){ ((RenderableEntity)entities.get(i)).render(); } Display.update(); Display.sync(100); if(Display.isCloseRequested()){ Display.destroy(); System.exit(0); } } }

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• Events and objects being skipped in GameMaker

  - by skeletalmonkey

  Update: Turns out it's not an issue with this code (or at least not entirely). Somehow the objects I use for keylogging and player automation (basic ai that plays the game) are being 'skipped' or not loaded about half the time. These are invisible objects in a room that have basic effects such are simulating button presses, or logging them. I don't know how to better explain this problem without putting up all my code, so unless someone has heard of this issue I guess I'll be banging my head against the desk for a bit /Update I've been continuing work on modifying Spelunky, but I've run into a pretty major issue with GameMaker, which I hope is me just doing something wrong. I have the code below, which is supposed to write log files named sequentially. It's placed in a End Room event such that when a player finishes a level, it'll write all their keypress's to file. The problem is that it randomly skips files, and when it reaches about 30 logs it stops creating any new files. var file_name; file_count = 4; file_name = file_find_first("logs/*.txt", 0); while (file_name != "") { file_count += 1; file_name = file_find_next(); } file_find_close(); file = file_text_open_write("logs/log" + string(file_count) + ".txt"); for(i = 0; i < ds_list_size(keyCodes); i += 1) { file_text_write_string(file, string(ds_list_find_value(keyCodes, i))); file_text_write_string(file, " "); file_text_write_string(file, string(ds_list_find_value(keyTimes, i))); file_text_writeln(file); } file_text_close(file); My best guess is that the first counting loop is taking too long and the whole thing is getting dropped? Also, if anyone can tell me of a better way to have sequentially numbered log files that would also be great. Log files have to continue counting over multiple start/stops of the game.

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• Developing a long pannable, sprite-animated Windows Store app

  - by Groo

  I am creating my first Windows Store app in XAML, and I cannot seem to find a proper example for the requirements I have (I have spent a couple of days fiddling around, so I apologize if I missed something obvious). Basic idea of the app is to have a large scrollable canvas which would lazily start animating visible parts of the view as soon as user stops panning over a certain content (with some audio played also): My original idea was to use a StackPanel to add a bunch of custom controls, each of which would then animate itself once visible (with a short delay), but I have a couple of concerns: If the entire canvas is ~50 screen widths wide, is it feasible to load all content at the beginning, or do I need to plan doing some lazy loading during scrolling? For example, when I select a certain region in the Bing Travel app, it seems to lazily load tiles as I scroll it towards the end. Since content is stretched 100% vertically, and these animations are vectorized to be resolution independent, I am not sure if XAML (CompositionTarget) will be able to handle this, or I have to go for DirectX (MonoGame or C++) to get rid of flicker. Even better, is there an example for Windows 8 which uses a 100% vertically sized GridView with custom animated controls inside?

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• Implement Negascout Algorithm with stack

  - by Dan

  I'm not familiar with how these stack exchange accounts work so if this is double posting I apologize. I asked the same thing on stackoverflow. I have added an AI routine to a game I am working on using the Negascout algorithm. It works great, but when I set a higher maximum depth it can take a few seconds to complete. The problem is it blocks the main thread, and the framework I am using does not have a way to deal with multi-threading properly across platforms. So I am trying to change this routine from recursively calling itself, to just managing a stack (vector) so that I can progress through the routine at a controlled pace and not lock up the application while the AI is thinking. I am getting hung up on the second recursive call in the loop. It relies on a returned value from the first call, so I don't know how to add these to a stack. My Working c++ Recursive Code: MoveScore abNegascout(vector<vector<char> > &board, int ply, int alpha, int beta, char piece) { if (ply==mMaxPly) { return MoveScore(evaluation.evaluateBoard(board, piece, oppPiece)); } int currentScore; int bestScore = -INFINITY; MoveCoord bestMove; int adaptiveBeta = beta; vector<MoveCoord> moveList = evaluation.genPriorityMoves(board, piece, findValidMove(board, piece, false)); if (moveList.empty()) { return MoveScore(bestScore); } bestMove = moveList[0]; for(int i=0;i<moveList.size();i++) { MoveCoord move = moveList[i]; vector<vector<char> > newBoard; newBoard.insert( newBoard.end(), board.begin(), board.end() ); effectMove(newBoard, piece, move.getRow(), move.getCol()); // First Call ****** MoveScore current = abNegascout(newBoard, ply+1, -adaptiveBeta, -max(alpha,bestScore), oppPiece); currentScore = - current.getScore(); if (currentScore>bestScore){ if (adaptiveBeta == beta || ply>=(mMaxPly-2)){ bestScore = currentScore; bestMove = move; }else { // Second Call ****** current = abNegascout(newBoard, ply+1, -beta, -currentScore, oppPiece); bestScore = - current.getScore(); bestMove = move; } if(bestScore>=beta){ return MoveScore(bestMove,bestScore); } adaptiveBeta = max(alpha, bestScore) + 1; } } return MoveScore(bestMove,bestScore); } If someone can please help by explaining how to get this to work with a simple stack. Example code would be much appreciated. While c++ would be perfect, any language that demonstrates how would be great. Thank You.

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• Which K-factor should be used in case players have different K-factor values

  - by DmitryN

  I am implementing a ranking system based on the Elo rating and cannot get a point about the K-factor. If two players with different skills and, therefore, different K-factors are playing, which exactly K-factor should be used when changing their ratings? For example, player A has rating 2500 and K-factor 16 (probability ~75%) while player B has rating 2300 and K-factor 24 (probability ~25%). If player A wins, do I need to use 16 as K-factor for both players or 16 for player A and 24 for player B?

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• Monster's AI in an Action-RPG

  - by Andrea Tucci

  I'm developing an action rpg with some University colleagues. We've gotton to the monsters' AI design and we would like to implement a sort of "utility-based AI" so we have a "thinker" that assigns a numeric value on all the monster's decisions and we choose the highest (or the most appropriate, depending on monster's iq) and assign it in the monster's collection of decisions (like a goal-driven design pattern) . One solution we found is to write a mathematical formula for each decision, with all the important parameters for evaluation (so for a spell-decision we might have mp,distance from player, player's hp etc). This formula also has coefficients representing some of monster's behaviour (in this way we can alterate formulas by changing coefficients). I've also read how "fuzzy logic" works; I was fascinated by it and by the many ways of expansion it has. I was wondering how we could use this technique to give our AI more semplicity, as in create evaluations with fuzzy rules such as IF player_far AND mp_high AND hp_high THEN very_Desiderable (for a spell having an high casting-time and consume high mp) and then 'defuzz' it. In this way it's also simple to create a monster behaviour by creating ad-hoc rules for every monster's IQ category. But is it correct using fuzzy logic in a game with many parameters like an rpg? Is there a way of merging these two techniques? Are there better AI design techniques for evaluating monster's chooses?

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• Help finding time of collision

  - by WannaBe

  I am making a simple game right now and am struggling with collision response. My goal is to someday be able to turn it into a 2D platformer but I have a long way to go. I am currently making this in JavaScript and using the canvas element so (0,0) is in the top left and positive X is to the right and positive Y is down. I read a helpful post on StackExchange that got me started on this but I can't seem to get the algorithm 100% correct. How to deal with corner collisions in 2D? I can detect the collision fine but I can't seem to get the response right. The goal is to detect which side the player hit first since minimum displacement doesn't always work. The X response seems to work fine but the Y only works when I am far from the corners. Here is a picture showing what happens Here is the code var bx = box.x; var by = box.y; var bw = box.width; var bh = box.height; var boxCenterX = bx + (bw/2); var boxCenterY = by + (bh/2); var playerCenterX = player.x + player.xvel + (player.width/2); var playerCenterY = player.y + player.yvel + (player.height/2); //left = negative and right = positve, 0 = middle var distanceXin = playerCenterX - boxCenterX; var distanceYin = playerCenterY - boxCenterY; var distanceWidth = Math.abs(distanceXin); var distanceHeight = Math.abs(distanceYin); var halfWidths = (bw/2) + (player.width/2); var halfHeights = (bh/2) + (player.height/2); if(distanceWidth < halfWidths){ //xcollision if(distanceHeight < halfHeights){ //ycollision if(player.xvel == 0){ //adjust y if(distanceYin > 0){ //bottom player.y = by + bh; player.yvel = 0; }else{ player.y = by - player.height; player.yvel = 0; } }else if(player.yvel == 0){ //adjust x if(distanceXin > 0){ //right player.x = bx + bw; player.xvel = 0; }else{ //left player.x = bx - player.width; player.xvel = 0; } }else{ var yTime = distanceYin / player.yvel; var xTime = distanceXin / player.xvel; if(xTime < yTime){ //adjust the x it collided first if(distanceXin > 0){ //right player.x = bx + bw; player.xvel = 0; }else{ //left player.x = bx - player.width; player.xvel = 0; } }else{ //adjust the y it collided first if(distanceYin > 0){ //bottom player.y = by + bh; player.yvel = 0; }else{ player.y = by - player.height; player.yvel = 0; } } } } } And here is a JSFiddle if you would like to see the problem yourself. http://jsfiddle.net/dMumU/ To recreate this move the player to here And press up and left at the same time. The player will jump to the right for some reason. Any advice? I know I am close but I can't seem to get xTime and yTime to equal what I want every time.

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• What is wrong with my Dot Product?

  - by Clay Ellis Murray

  I am trying to make a pong game but I wanted to use dot products to do the collisions with the paddles, however whenever I make a dot product objects it never changes much from .9 this is my code to make vectors vector = { make:function(object){ return [object.x + object.width/2,object.y + object.height/2] }, normalize:function(v){ var length = Math.sqrt(v[0] * v[0] + v[1] * v[1]) v[0] = v[0]/length v[1] = v[1]/length return v }, dot:function(v1,v2){ return v1[0] * v2[0] + v1[1] * v2[1] } } and this is where I am calculating the dot in my code vector1 = vector.normalize(vector.make(ball)) vector2 = vector.normalize(vector.make(object)) dot = vector.dot(vector1,vector2) Here is a JsFiddle of my code currently the paddles don't move. Any help would be greatly appreciated

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• How do I set a touch listener in a child scene in AndEngine?

  - by Siddharth

  In my game, I want to implement touch listener for my child scene objects. Basically I tried all the possible way to implement this that I have usually done for my normal scenes, but those methods do not work here. Could somebody provide some guidance for setting touch area listener in child scene? Here is my code: menuScene.setTouchAreaBindingEnabled(true); menuScene.registerTouchArea(resumeButtonSprite); menuScene.registerTouchArea(retryButtonSprite); menuScene.registerTouchArea(exitButtonSprite); menuScene.setOnAreaTouchListener(new IOnAreaTouchListener() { @Override public boolean onAreaTouched(TouchEvent pSceneTouchEvent, ITouchArea pTouchArea, float pTouchAreaLocalX, float pTouchAreaLocalY) { System.out.println("Touch"); return true; } }); In this code, menuScene was a child scene activity. Also after research I found that my engine was stopped while the child scene was activated so the touch event is not detected. I want to implement a pause menu in my game so any desirable solution for a pause menu implementation would help.

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• XNA matrix order problem

  - by user1990950

  I want a matrix that scales first and then rotates. I tried the code below, but it didn't work. zRotation, yRotation and xRotation are rotations that shouldn't be affected by the origin. allrot should be affected. xScale, yScale and zScale are the scaling variables. The code below works except that it rotates and then scales. Matrix worldMatrix = ( Matrix.CreateRotationZ(MathHelper.ToRadians(zRotation)) * Matrix.CreateRotationX(MathHelper.ToRadians(xRotation)) * Matrix.CreateRotationY(MathHelper.ToRadians(yRotation)) ) * ( Matrix.CreateTranslation(origin) * Matrix.CreateRotationY(MathHelper.ToRadians(allrot)) * Matrix.CreateScale(xScale, yScale, zScale) );

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• How can I place a ProgressBar in Android using Cocos 2d?

  - by Laxmipriya

  I want to place a horizontal progress bar in my Android application and I want to change its progress color. I used the following code, but the progress bar is not being displayed. CCProgressTimer progressBar = CCProgressTimer.progress("progressbar.png"); progressBar.setType(kCCProgressTimerTypeHorizontalBarLR); progressBar.setScale(5); progressBar.setAnchorPoint(CGPoint.ccp(0, 0)); progressBar.setPosition(CGPoint.ccp(0,0)); addChild(progressBar);

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• Alternative to pyGame ?

  - by stighy

  Hi, i'm learning something about game programming from a book about "pyGame". pyGame is simple, but... python is a little complex and different from my previous knoweledge about programming. I know "classical" language: C# (also C/C++), Java ... I know a lot of people love Python but for me is a little harder to learn! So i'm looking something like "pyGame" but for java or for c# ... A library with which i can do almost the same thing i can do with pygame (so .. do more with less code ... and headhace). Thank you Ps: excuse my "poor" english!

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