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  • Splitting a tetris game apart - where to put time-management?

    - by nightcracker
    I am creating a tetris game in C++ & SDL, and I'm trying to do it "good" by making it object-oriented and keeping scopes small. So far I have the following structure: A main with some lowlevel SDL set up and handling input A game class that keeps track of score and provides the interface for main (move block down, etc) A map class that keeps track of the current game field, which blocks are where. Used by the game class. A block class that consists of the current falling block, used by game. A renderer class abstracting low level SDL to a format where you render "tetris blocks". Used by map and block. Now I have a though time where to place the time-management of this game. For example, where should be decided when a block bumps the bottom of the screen how long it takes the current block locks in place and a new block spawns? I also have an other unrelated question, is there some place where you can find some standard data on tetris like standard score tables, rulesets, timings, etc?

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  • How can I improve the "smoothness" of a 2D side-scrolling iPhone game?

    - by MrDatabase
    I'm working on a relatively simple 2D side-scrolling iPhone game. The controls are tilt-based. I use OpenGL ES 1.1 for the graphics. The game state is updated at a rate of 30 Hz... And the drawing is updated at a rate of 30 fps (via NSTimer). The smoothness of the drawing is ok... But not quite as smooth as a game like iFighter. What can I do to improve the smoothness of the game? Here are the potential issues I've briefly considered: I'm varying the opacity of up to 15 "small" (20x20 pixels) textures at a time... Apparently varying the opacity in this manner can degrade drawing performance I'm rendering at only 30 fps (via NSTimer)... Perhaps 2D games like iFighter are rendered at a higher frame rate? Perhaps the game state could be updated at a faster rate? Note the acceleration vales are updated at 100 Hz... So I could potentially update part of the game state at 100 hz All of my textures are PNG24... Perhaps PNG8 would help (due to smaller size etc)

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  • Should I use OpenGL or DX11 for my game?

    - by Sundareswaran Senthilvel
    I'm planning to write a game from scratch (a BIG Game, for commercial purpose). I'm aware that there are certain compute libraries like OpenCL, AMD APP SDK, C++ AMP as well as DirectCompute - both from MS (NOT interested in CUDA) are available in the market. I'm planning to write the game from the scratch, which includes the following engines... Physics Engine AI Engine Main Game Engine (... and if anything is missed). I'm aware that, there are some free physics engine libraries in the market. Not sure about free AI engine libraries. I'm bit confused in choosing between the OpenCL, AMD APP SDK, and C++ AMP libraries (as already mentioned i'm NOT interested in CUDA). I want my game to be published in Windows/Android/Mac OSX. It means it should be a cross-platform game. I will be having "one source code" that i'll compile for various platforms like Windows/Android/Mac OSX, and any others if i missed. Note: Since I'm NOT a Java guy, kindly do NOT suggest me the Java Language. For Graphics language should i use OpenGL or DirectX 11? I have heard that OpenGL runs on a single core, and not sure of DirectX 11. Between OpenGL and DirectX which one should i follow? or else, are there any other graphics language that i need to start with? I want to make use of the parallelism in GPU as well as CPU.

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  • Splitting a tetris game apart - where to put time-management?

    - by nightcracker
    I am creating a tetris game in C++ & SDL, and I'm trying to do it "good" by making it object-oriented and keeping scopes small. So far I have the following structure: A main with some lowlevel SDL set up and handling input A game class that keeps track of score and provides the interface for main (move block down, etc) A map class that keeps track of the current game field, which blocks are where. Used by the game class. A block class that consists of the current falling block, used by game. A renderer class abstracting low level SDL to a format where you render "tetris blocks". Used by map and block. Now I have a though time where to place the time-management of this game. For example, where should be decided when a block bumps the bottom of the screen how long it takes the current block locks in place and a new block spawns? I also have an other unrelated question, is there some place where you can find some standard data on tetris like standard score tables, rulesets, timings, etc?

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  • HTML5 - Does it have the power to handle a large 2D game with a huge world?

    - by user15858
    I have been using XNA game studio, but due to private reasons (as well as the ability to publish anywhere & my heavy interest in isogenic engine), I would like to switch to HTML5. However, I have very high 2D graphic demands for my game. The game itself will have a HDD size of anywhere between 6GB (min) to 12GB (max) which would be a full game deployed offline. The size of the images aren't significantly large, so streaming would be entirely possible if only those assets required were streamed as needed. The game has a massive file size because of the sheer amount of content. For some images or spritesheets, they would be quite massive. (ex. a very large Dragon, which if animated in a spritesheet would be split into two 4096x4096 sheets or one 8192x8192 sheet). Most assets would be very small, and about 7MB for a full character with 15 animations in every direction (all animations not required immediately) so in the size of a few hundred KB to download before the game loads. My question, however, is if the graphical power of HTML5 is enough to animate several characters on screen at once, when it flips through frames quite rapidly. All my sprites have about 25 frames per animation, 5 directions (a spritesheet for each direction & animation), and run at 30fps. Upon changing direction, animation, or a new character entering, spritesheets would change and be constantly loading/unloading. If I pack all directions in a single sheet, it would be about 2048x2048 per sheet. Most frameworks have no problem with this, but I am afraid from what I read that HTML5's graphical capabilities will limit me. Since it takes significant time simply to animate characters in any language, I'd like a quick answer.

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  • Sysprep and Capture task sequence failing using MDT 2010

    - by Nic Young
    I have created a Windows Deployment Services server in Windows 2008 R2. When I originally set it up I was able to successfully use MDT 2010 to create my boot images as well as creating task sequences that would sysprep and capture, and deploy my custom .wim files. Everything was working perfectly. About a month later I boot up my Windows 7 x86 image and run Windows updates to keep my image up to date. I then go and run my sysprep and capture task sequence and I get the following errors: I searched online for the cause of this error message and it just seems to be a generic permission denied type of error message. I then decided to completely rebuild my VM image from scratch and try again. I am still getting the same error messages as before. The following is what I have tried troubleshooting this issue: Troubleshooting: I have ensured that that UAC and the firewall is turned completely off when trying to capture the image. I have tried recreating the task sequence and making sure that the deployment share is updated. I have ensured that the local Administrator account is enabled and has the same password as specified in the task sequence. I have tried joining the computer to the domain and running the task sequence and I get a different error: I have attempted to run the script from the command prompt with "Run as Administrator" and I still receive the same errors above. For testing purposes I have ensured that Everyone has read/write access to my deployment share. I have spent days on trying to resolve this to no avail. Any ideas? EDIT: Below is the log info from C:\Windows\Deploymentlogs\BDD.log as requested. <![LOG[LTI Windows PE applied successfully]LOG]!><time="11:48:34.000+000" date="07-25-2012" component="LTIApply" context="" type="1" thread="" file="LTIApply"> <![LOG[LTIApply processing completed successfully.]LOG]!><time="11:48:34.000+000" date="07-25-2012" component="LTIApply" context="" type="1" thread="" file="LTIApply"> <![LOG[Microsoft Deployment Toolkit version: 6.0.2223.0]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[The task sequencer log is located at C:\Users\nicy\AppData\Local\Temp\SMSTSLog\SMSTS.LOG. For task sequence failures, please consult this log.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[Processing drivers for an X86 operating system.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[TargetOS is the current SystemDrive]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[Property DriverCleanup is now = DONE]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[Compare Image processor Type with Original [X86] = [X86].]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[Prepare machine for Sysprep.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[No driver actions can be taken for OS Images installed from *.wim files.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[ZTIDrivers processing completed successfully.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="ZTIDrivers" context="" type="1" thread="" file="ZTIDrivers"> <![LOG[Command completed, return code = -2147467259]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[Litetouch deployment failed, Return Code = -2147467259 0x80004005]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="3" thread="" file="LiteTouch"> <![LOG[For more information, consult the task sequencer log ...\SMSTS.LOG.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[Property RetVal is now = -2147467259]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[Unable to copy log to the network as no SLShare value was specified.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[CleanStartItems Complete]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[Unregistering TSCore.dll.]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[About to run command: wscript.exe "\\server\deploymentshare$\Scripts\LTICleanup.wsf"]LOG]!><time="11:48:35.000+000" date="07-25-2012" component="LiteTouch" context="" type="1" thread="" file="LiteTouch"> <![LOG[Microsoft Deployment Toolkit version: 6.0.2223.0]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Removing AutoAdminLogon registry entries]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[VSSMaxSize not specified using 5% of volume.]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Logs contained 7 errors and 0 warnings.]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Stripping BDD commands from unattend.xml template.]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Modified unattend.xml saved to C:\windows\panther\unattend.xml]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Checking mapped network drive.]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[testing drive Z: mapped to \\server\deploymentshare$]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Disconnecting drive Z: mapped to \\server\deploymentshare$]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Cleaning up C:\MININT directory.]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup"> <![LOG[Cleaning up TOOLS, SCRIPTS, and PACKAGES directories.]LOG]!><time="11:48:36.000+000" date="07-25-2012" component="LTICleanup" context="" type="1" thread="" file="LTICleanup">

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  • Platformer Collision Error [closed]

    - by Connor
    I am currently working on a relatively simple platform game that has an odd bug.You start the game by falling onto the ground (you spawn a few blocks above the ground), but when you land your feet get stuck INSIDE the world and you can't move until you jump. Here's what I mean: The player's feet are a few pixels below the ground level. However, this problem only occurs in 3 places throughout the map and only in those 3 select places. I'm assuming that the problem lies within my collision detection code but I'm not entirely sure, as I don't get an error when it happens. public boolean isCollidingWithBlock(Point pt1, Point pt2) { //Checks x for(int x = (int) (this.x / Tile.tileSize); x < (int) (this.x / Tile.tileSize + 4); x++) { //Checks y for(int y = (int) (this.y / Tile.tileSize); y < (int) (this.y / Tile.tileSize + 4); y++) { if(x >= 0 && y >= 0 && x < Component.dungeon.block.length && y < Component.dungeon.block[0].length) { //If the block is not air if(Component.dungeon.block[x][y].id != Tile.air) { //If the player is in contact with point one or two on the block if(Component.dungeon.block[x][y].contains(pt1) || Component.dungeon.block[x][y].contains(pt2)) { //Checks for specific blocks if(Component.dungeon.block[x][y].id == Tile.portalBlock) { Component.isLevelDone = true; } if(Component.dungeon.block[x][y].id == Tile.spike) { Health.health -= 1; Component.isJumping = true; if(Health.health == 0) { Component.isDead = true; } } return true; } } } } } return false; } What I'm asking is how I would fix the problem. I've looked over my code for quite a while and I'm not sure what's wrong with it. Also, if there's a more efficient way to do my collision checking then please let me know! I hope that is enough information, if it's not just tell me what you need and I'll be sure to add it. Thank you! [EDIT] Jump code: if(!isJumping && !isCollidingWithBlock(new Point((int) x + 2, (int) (y + height)), new Point((int) (x + width + 2), (int) (y + height)))) { y += fallSpeed; //sY is the screen's Y. The game is a side-scroller Component.sY += fallSpeed; } else { if(Component.isJumping) { isJumping = true; } } if(isJumping) { if(!isCollidingWithBlock(new Point((int) x + 2, (int) y), new Point((int) (x + width + 2), (int) y))) { if(jumpCount >= jumpHeight) { isJumping = false; jumpCount = 0; } else { y -= jumpSpeed; Component.sY -= jumpSpeed; jumpCount += 1; } } else { isJumping = false; jumpCount = 0; } }

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  • When writing a game, should you make objects/enemies/etc. have unique ID numbers?

    - by SLC
    I have recently encountered some issues with merely passing references to objects/enemies in a game I am making, and am wondering if I am using the wrong approach. The main issue I have is disposing of enemies and objects, when other enemies or players may still have links to them. For example, if you have a Rabbit, and a Wolf, the Wolf may have selected the Rabbit to be its target. What I am doing, is the wolf has a GameObject Target = null; and when it decides it is hungry, the Target becomes the Rabbit. If the Rabbit then dies, such as another wolf killing it, it cannot be removed from the game properly because this wolf still has a reference to it. In addition, if you are using a decoupled approach, the rabbit could hit by lightning, reducing its health to below zero. When it next updates itself, it realises it has died, and is removed from the game... but there is no way to update everything that is interested in it. If you gave every enemy a unique ID, you could simply use references to that instead, and use a central lookup class that handled it. If the monster died, the lookup class could remove it from its own index, and subsequently anything trying to access it would be informed that it's dead, and then they could act accordingly. Any thoughts on this?

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  • Using game of life or other virtual environment for artificial (intelligence) life simulation? [clos

    - by Berlin Brown
    One of my interests in AI focuses not so much on data but more on biologic computing. This includes neural networks, mapping the brain, cellular-automata, virtual life and environments. Described below is an exciting project that includes develop a virtual environment for bots to evolve in. "Polyworld is a cross-platform (Linux, Mac OS X) program written by Larry Yaeger to evolve Artificial Intelligence through natural selection and evolutionary algorithms." http://en.wikipedia.org/wiki/Polyworld " Polyworld is a promising project for studying virtual life but it still is far from creating an "intelligent autonomous" agent. Here is my question, in theory, what parameters would you use create an AI environment? Possibly a brain environment? Possibly multiple self contained life organisms that have their own "brain" or life structures. I would like a create a spin on the game of life simulation. What if you have a 64x64 game of life grid. But instead of one grid, you might have N number of grids. The N number of grids are your "life force" If all of the game of life entities die in a particular grid then that entire grid dies. A group of "grids" makes up a life form. I don't have an immediate goal. First, I want to simulate an environment and visualize what is going on in the environment with OpenGL and see if there are any interesting properties to the environment. I then want to add "scarce resources" and see if the AI environment can manage resources adequately.

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  • Making a Javascript game, Having a little problem with scrolling.

    - by RobertWHurst
    I have a #wrapper div and a #grid div nested inside. currently I can scroll around with this function below. getCursorPos : function(){ // set the empty cursor object var cursor = {}; //get the offset from the left of the grid container var grid //offset loop $(function getCursorPos(){ grid = $('#grid').offset(); setTimeout(getCursorPos, game.loopSpeed); }); //continuosly get the position var that = this; $(document).mousemove(function(e){ //if game mode is menu exit if(game.mode === 'menu'){ return; } // NOTE: this looks a litle over done but don't remove anything // its like this because javascript uses floating points // and so in order to line up to the nearest hunderedth I // had to make the cursor and div position intergers by // muliplying by ten. one the two are added I reduced them // and rounded them. that.x = Math.round(((e.pageX * 10) - (grid.left * 10)) / 10); that.y = Math.round(((e.pageY * 10) - (grid.top * 10)) / 10); }); }, the problem is that the mouse coordinates only update when the mouse moves. is there any way to get the coordinates with out moving the mouse?

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  • DirectX: Game loop order, draw first and then handle input?

    - by Ricket
    I was just reading through the DirectX documentation and encountered something interesting in the page for IDirect3DDevice9::BeginScene : To enable maximal parallelism between the CPU and the graphics accelerator, it is advantageous to call IDirect3DDevice9::EndScene as far ahead of calling present as possible. I've been accustomed to writing my game loop to handle input and such, then draw. Do I have it backwards? Maybe the game loop should be more like this: (semi-pseudocode, obviously) while(running) { d3ddev->Clear(...); d3ddev->BeginScene(); // draw things d3ddev->EndScene(); // handle input // do any other processing // play sounds, etc. d3ddev->Present(NULL, NULL, NULL, NULL); } According to that sentence of the documentation, this loop would "enable maximal parallelism". Is this commonly done? Are there any downsides to ordering the game loop like this? I see no real problem with it after the first iteration... And I know the best way to know the actual speed increase of something like this is to actually benchmark it, but has anyone else already tried this and can you attest to any actual speed increase?

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  • Developing a feature which sole purpose to be taken out?

    - by adib
    What is the name of the pattern in which individual contributors (programmers/designers) developed an artifact for the sole purpose is to serve as a diversion so that management can remove that feature in the final product? This is a folklore I heard from an ex-colleague who used to work at a large game development company. At that company, it is well known that middle management is pressurized to "give inputs" and "make changes" to the product otherwise they risk being seen as not contributing to the project. This situation have delayed many projects because of these superfluous "management inputs". In one project at the above company, the artists and developers created a supernumerary animated character that appears in every cutscene and sticks out like a sore thumb. They designed it in such a way that it can be easily removed before the game is shipped (this was when games were still sold in physical media and not a downloadable product). Obviously the management then voted to remove the animation. On the positive side, management didn't introduced any unnecessary changes that would have delayed the project because they have shown that they provided constructive inputs to the product. This process pattern has a name among game programmers that work in corporates, but I forgot what was the actual name. I believe it's duck-something. Anybody can help pointing out the name and perhaps some rather credible reference to how the pattern develops?.

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  • Day 5 - Tada! My Game Menu Screen Graphics

    - by dapostolov
    So, tonight I took some time to mash up some graphics for my game menu screen. My artistic talent sucks...but here goes nothing...voila, my menu screen!! The Menu Screen The screen above is displaying 4 sprites, even though it looks like maybe 7... I guess one of the first things for me to test in the future is ... is it more memory efficient (and better frame rate) to draw one big background image OR tp paint the screen black, and place each sprite in set locations? To display the 4 sprites above, I borrowed my code from yesterday ... I know, tacky, but...I wanted to see it, feel it. Do you feel it? FEEL IT! (homer voice & shakes fist) Note: the menu items won't scale properly as it stands with this code, well pretty much they do nothing except look pretty... Paint.Net & Google Fun So how did I create that image above? Well, to create the background and 3 menu items I used Paint.Net. Basically, I scoured Google images for: a stone doorway, a stone pillar, an old book, a wizards hat, and...that's it pretty much it! I'll let you type in those searches and see if you can locate the images I used. I know, bad developer...but I figured since I modified the images considerably it doesn't count...well for a personal project it shouldn't count...*shrug* Anyhow, I extracted each key assest I wanted from each image and applied lots of matting, blurring, color changes, glow effects and such. Then, using my vivid imagination I placed / composed each of the layered assets into the mashed up the "scene" above. Pretty cool, eh? Hey, did you know, the cool mist effect is actually a fire rendition in Paint.net? I set it to black & white with opacity set next to nothing. I'm also very proud of the yellow "light" in the stone doorway. I drew that in and then applied gausian blur to it to give it the effect of light creeping out around the door and into the room...heheh. So did I achieve the dark, mysterious ritual as I stated in my design doc? I think I had a great stab at it! Maybe down the road I can get a real artist to crank out some quality graphics for the game... =) So, What's Next? Well, I don't have that animated brazier yet...however, I thought it would be even cooler if I can get that door pulsing that yellow light and it would be extremely cool to have the smoke / mist moving across the screen! Make the creative ideas stop!! (clutches head) haha! I'm having great fun working on this project =) I recommend others giving something like this a try, it's really fulfilling. OK. Tomorrow... I think I'm going to start creating some game / menu objects as per the design doc, maybe even get a custom mouse cursor up on the screen and handle a couple of mouse events, and lastly, maybe a feature to toggle a framerate display... D.

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  • Not getting paid for hours you've worked?

    - by Sauron
    So I was reading from a previous thread about App vs Game Development: If it was for you to chose Game Development vs Application Development, which will you chose? Which brought me to this site: EA: The Human Story A lot of it talked about developers working something like 85 hours a week, and not getting paid overtime, or anything. Just getting paid for the 40 hours. Is this normal for most software companies? I mean where I work I'm only an entry level guy but I get overtime, and anything over 40 hours is considered this. But it got me thinking "Holy crap" I could never do that. My FREE time is important to me. But is this commonplace in most software companies? Or is more a rarity to certain types (game development, etc)? Because it got me scared! Like I understand having to put some extra hours in for a project... but like 80! that's ridiculous.

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  • Game login server

    - by Tar
    I have a setup like this: A website, with a database. This database houses accounts and all details. Password hashes/salts/join dates/etc. What I want to do is to be able to use this same database for our game database. The game will be on servers in the United States while the web server and web server database is in the Netherlands. I know there is a big problem with using remote SQL and we really don't want to do that as operation of the website is just as vital as operation of the game server. We had one solution that involved sending account details to another database hosted on the same server that the gameserver is hosted on, but that was incredibly unreliable because if the website was down, no new people could register to play the game. The solution that we want is to have a log in server that is used to check credentials for everything. Is this possible/viable and could anyone point in the right direction? So, in summation: 2 game servers 1 web servers 1 central database used for authorization. The game accounts and website accounts need to be one in the same.

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  • openGL ES - change the render mode from RENDERMODE_WHEN_DIRTY to RENDERMODE_CONTINUOUSLY on touch

    - by Sid
    i want to change the rendermode from RENDERMODE_WHEN_DIRTY to RENDERMODE_CONTINUOUSLY when i touch the screen. WHAT i Need : Initially the object should be stationary. after touching the screen, it should move automatically. The motion of my object is a projectile motion ans it is working fine. what i get : Force close and a NULL pointer exception. My code : public class BallThrowGLSurfaceView extends GLSurfaceView{ MyRender _renderObj; Context context; GLSurfaceView glView; public BallThrowGLSurfaceView(Context context) { super(context); // TODO Auto-generated constructor stub _renderObj = new MyRender(context); this.setRenderer(_renderObj); this.setRenderMode(RENDERMODE_WHEN_DIRTY); this.requestFocus(); this.setFocusableInTouchMode(true); glView = new GLSurfaceView(context.getApplicationContext()); } @Override public boolean onTouchEvent(MotionEvent event) { // TODO Auto-generated method stub if (event != null) { if (event.getAction() == MotionEvent.ACTION_DOWN) { if (_renderObj != null) { Log.i("renderObj", _renderObj + "lll"); // Ensure we call switchMode() on the OpenGL thread. // queueEvent() is a method of GLSurfaceView that will do this for us. queueEvent(new Runnable() { public void run() { glView.setRenderMode(RENDERMODE_CONTINUOUSLY); } }); return true; } } } return super.onTouchEvent(event); } } PS : i know that i am making some silly mistakes in this, but cannot figure out what it really is.

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  • 2D character controller in unity (trying to get old-school platformers back)

    - by Notbad
    This days I'm trying to create a 2D character controller with unity (using phisics). I'm fairly new to physic engines and it is really hard to get the control feel I'm looking for. I would be really happy if anyone could suggest solution for a problem I'm finding: This is my FixedUpdate right now: public void FixedUpdate() { Vector3 v=new Vector3(0,-10000*Time.fixedDeltaTime,0); _body.AddForce(v); v.y=0; if(state(MovementState.Left)) { v.x=-_walkSpeed*Time.fixedDeltaTime+v.x; if(Mathf.Abs(v.x)>_maxWalkSpeed) v.x=-_maxWalkSpeed; } else if(state(MovementState.Right)) { v.x= _walkSpeed*Time.fixedDeltaTime+v.x; if(Mathf.Abs(v.x)>_maxWalkSpeed) v.x=_maxWalkSpeed; } _body.velocity=v; Debug.Log("Velocity: "+_body.velocity); } I'm trying here to just move the rigid body applying a gravity and a linear force for left and right. I have setup a physic material that makes no bouncing and 0 friction when moving and 1 friction with stand still. The main problem is that I have colliders with slopes and the velocity changes from going up (slower) , going down the slope (faster) and walk on a straight collider (normal). How could this be fixed? As you see I'm applying allways same velocity for x axis. For the player I have it setup with a sphere at feet position that is the rigidbody I'm applying forces to. Any other tip that could make my life easier with this are welcomed :). P.D. While coming home I have noticed I could solve this applying a constant force parallel to the surface the player is walking, but don't know if it is best method.

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  • Starting a career with broad experience or specific experience

    - by TMP
    I am a senior in college going for a CS degree. I have an internship that works with a variety of languages and gives me a pretty good amount of responsibility. The only problem is that it is the only job experience I've had. My question is whether or not it might be a good idea to work another internship, keep the same internship, or in addition to the previous options, to get a masters degree so that i can extend my education and time to gather the usually necessary 2-3 years of industry experience. Obviously there's no outright correct way, but i just want to know if it is more accepted to get experience with different companies or to stick with one to show commitment.

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  • Slot Machine Pay Out

    - by Kris.Mitchell
    I have done a lot of research into random number generators for slot machines, reel stop calculations and how to physically give the user a good chance on winning. What I can't figure out is how to properly insure that the machine is going to have a payout rating of (lets say) 95%. So, I have a reel set up wit 22 spaces on it. Filled with 16 different symbols. When I get my random number, mod divide it by 64 and get the remainder, I hop over to a loop up table to see how the virtual stop relates to the reel position. Now that I have how the reels are going to stop, do I make sure the payout ratio is correct? For every dollar they put in, how to I make sure the machine will pay out .95 cents? Thanks for the ideas. I am working in actionscript, if that helps with the language issues, but in general I am just looking for theory.

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  • Graphics module: Am I going the right way?

    - by Paul
    I'm trying to write the graphics module of my engine. That is, this part of the code only provides an interface through which to load images, fonts, etc and draw them on the screen. It is also a wrapper for the library I'm using (SDL in this case). Here are the interfaces for my Image, Font and GraphicsRenderer classes. Please tell me if I'm going the right way. Image class Image { public: Image(); Image(const Image& other); Image(const char* file); ~Image(); bool load(const char* file); void free(); bool isLoaded() const; Image& operator=(const Image& other); private: friend class GraphicsRenderer; void* data_; }; Font class Font { public: Font(); Font(const Font& other); Font(const char* file, int ptsize); ~Font(); void load(const char* file, int ptsize); void free(); bool isLoaded() const; Font& operator=(const Font& other); private: friend class GraphicsRenderer; void* data_; }; GrapphicsRenderer class GraphicsRenderer { public: static GraphicsRenderer* Instance(); void blitImage(const Image& img, int x, int y); void blitText(const char* string, const Font& font, int x, int y); void render(); protected: GraphicsRenderer(); GraphicsRenderer(const GraphicsRenderer& other); GraphicsRenderer& operator=(const GraphicsRenderer& other); ~GraphicsRenderer(); private: void* screen_; bool initialize(); void finalize(); };

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  • Rule of thumb for enemy art design in 2D platformer

    - by Terrance
    I'm at the early stages of developing a 2D side scrolling open ended platformer (think Metroidvania) and am having a bit of difficulty at enemy design inspiration for something of a scifi, nature, fantasy setting that isn't overly familar or obvious. I haven't seen too many articles, blogs or books that talk about the subject at great length. Is there a fair rule of thumb when coming up with enemy art with respect to keeping your player engaged?

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  • Experience formula with javascript

    - by StealingMana
    I'm having trouble working out a formula using this experience curve to get the total exp after each level. I bet its easy and im just over thinking it. maxlvl = 10; increment = 28; baseexp = 100; function calc(){ for (i = 0;i<(maxlvl*increment);i+=increment){ expperlvl = baseexp + i; document.writeln(expperlvl); } } I figured it out. maxlvl=6; base=200; increment=56; function total(){ totalxp= (base*(maxlvl-1))+(increment*(maxlvl-2)*(maxlvl-1)/2); document.write(totalxp); }

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  • Does C# have a future in games development?

    - by IbrarMumtaz
    I recently learned that the MMO Minecraft is powered by Java from a recent interview on CVG.co.uk on a possible collaboration between two former and now competing colleagues. In the interview he bluntly said that the founder of Minecraft is a Java coder and he is a C or C++ coder so they are incompatible with each other. So collaborating on future projects will be difficult. This got me thinking, If Java could do that? What does the future hold for MS very popular C# language and .Net platform as far as games or mainstream games development is concerned?

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  • Should pathfinder in A* hold closedSet and openedSet or each object should hold its sets?

    - by Patryk
    I am about to implement A* pathfinding algorithm and I wonder how should I implement this - from the point of view of architecture. I have the pathfinder as a class - I think I will instantiate only one object of this class (or maybe make it a Singleton - this is not so important). The hardest part for me is whether the closedSet and openedSet should be attached to objects that can find the path for them or should be stored in pathfinder class ? I am opened to any hints and critique whatsoever. What is the best practice considering pathfinding in terms of design ?

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  • C# XNA - Sky Sphere Question

    - by Wade
    I have been banging my head against the wall trying to get a sky sphere to work appropriately in XNA 4.0. I have the sphere loading correctly, and even textured, but i would like something a little more dynamic that can support a day/night cycle. My issue is that, while i know a good amount of C# and XNA, i know next to nothing about HLSL. (I could make an ambient light shader if my life depended on it...) I also have not been able to find a tutorial on how to build a sky sphere like this. Of course i don't expect to be able to make an amazing one right off the bat, i would like to start small, with a dynamic coloring sky i'll work out the clouds and sun later. My first question: Does anyone know of any good tutorial sites that could help me get a decent grasp around HLSL? Second: Does anyone have a good example of or know where to find one of a gradient sky using XNA and C#?

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