Search Results

Search found 28230 results on 1130 pages for 'embedded development'.

Page 424/1130 | < Previous Page | 420 421 422 423 424 425 426 427 428 429 430 431  | Next Page >

  • How can I fade something to clear instead of white?

    - by Raven Dreamer
    I've got an XNA game which essentially has "floating combat text": short-lived messages that display for a fraction of a second and then disappear. I've recently added a gradual "fade-away" effect, like so: public void Update() { color.A -= 10; position.X += 3; if (color.A <= 10) isDead = true; } Where color is the Color int the message displays as. This works as expected, however, it fades the messages to white, which is very noticeable on my indigo background. Is there some way to fade it to transparent, rather than white? Lerp-ing towards the background color isn't an option, as there's a possibility there will be something between the text and the background, which would simply be the inverse of the current problem.

    Read the article

  • Box2D networking

    - by spacevillain
    I am trying to make a simple sync between two box2d rooms, where you can drag boxes using the mouse. So every time player clicks (and holds the mousedown) a box, I try send joint parameters to server, and server sends them to other clients. When mouseup occurs, I send command to delete joint. The problem is that sync breaks too often. Is my way radically wrong, or it just needs some tweaks? http://www.youtube.com/watch?v=eTN2Gwj6_Lc Source code https://github.com/agentcooper/Box2d-networking

    Read the article

  • Rotate model using quaternion

    - by ChocoMan
    Currently I have this to rotate my 3D model that rotates on it's local axis independent from the world's axis: // Rotate model with Right Thumbstick modelRotation -= pController.ThumbSticks.Right.X * mRotSpeed; // float value What I'm trying to do is rotate the model using quaternion and not by a matrix. I've searched for tutorials, but have found none that explains thoroughly on how to achieve this. Does anyone know how to I can use quaternions to rotate my model or a complete tutorial?

    Read the article

  • How to position a sprite in a 2D animation skeleton?

    - by Paul Manta
    Given two joints that define a bone, I would like to know how to decide where, between those two joints, I should draw the sprite. This should be a fairly simple thing to solve, but there is one thing that I am not sure about. After I've determined the rotation of the sprite (which is the absolute angle the joints form with the x-axis), I also need to determine the origin point from where I need to start drawing the transformed image. So how should I position the sprite between the two joints? Should I make the center of the image be the midpoint between the two joints, or should I make one the of the joints be the origin? Do these things matter that much (could the wrong positioning make the sprite move oddly during the animation)?

    Read the article

  • Increase animation speed according to the swipe speed in unity for Android

    - by rohit
    I have the animation done through Maya and brought the FBX file to unity. Here is my code to calculate the speed of the swipe: Vector2 speedMeasuredInScreenWidthsPerSecond =(Input.touches[0].deltaPosition / Screen.width) * Input.touches[0].deltaTime; Now I wanted to take speedMeasuredInScreenWidthsPerSecond and use it to increase the animation speed accordingly like this: animation["gmeChaAnimMiddle"].speed=Mathf.Round(speedMeasuredInScreenWidthsPerSecond); However, this results in an error that I need to convert Vector2 to float. So how do I overcome it?

    Read the article

  • Unity3d vector and matrix operations

    - by brandon
    I have the following three vectors: posA: (1,2,3) normal: (0,1,0) offset: (2,3,1) I want to get the vector representing the position which is offset in the direction of the normal from posA. I know how to do this by cheating (not using matrix operations): Vector3 result = new Vector3(posA.x + normal.x*offset.x posA.y + normal.y*offset.y, posA.z + normal.z*offset.z); I know how to do this mathematically Note: [] indicates a column vector, {} indicates a row vector result = [1,2,3] + {2,3,1}*{[0,0,0],[0,1,0],[0,0,0]} What I don't know is which is better to use and if it's the latter how do I do this in unity? I only know of 4x4 matrices in unity. I don't like the first option because you are instantiating a new vector instead of just modifying the original. Suggestions? Note: by asking which is better, I am asking for a quantifiable reason, not just a preference.

    Read the article

  • How important is Programming for a Level Designer?

    - by WryGrin
    I'm currently attending school in a Level Design program, and I was wondering how important programming really is in being a Level Designer? I'm apparently incapable of learning programming (despite my best efforts), and tend to do very well in all other courses 3D modelling, story/character design, narrative and dialogue writing, environmental and conceptual design etc. I'm wondering if my strengths in the other areas are enough (with practice) to let me become a Level Designer, or I'm wasting my time if I can't program? I really want to be a Designer, but I just can't seem to wrap my head around the "language" of programming in general (Java kicks my teeth in even with tutoring and additional work on my own).

    Read the article

  • How are these bullets done?

    - by Mike
    I really want to know how the bullets in Radiangames Inferno are done. The bullets seem like they are just billboard particles but I am curious about how their tails are implemented. They can curve so this means they are not just a billboard. Also, they appear continuous which implies that the tails are not made of a bunch of smaller particles (I think). Can anyone shead some light on this for me?

    Read the article

  • Making a 2D game with responsive resolution

    - by alexandervrs
    I am making a 2D game, however I wish for it to be resolution agnostic. My target resolution i.e. where things look as intended is 1600 x 900. My ideas are: Make the HUD stay fixed to the sides no matter what resolution, use different size for HUD graphics under a certain resolution and another under a certain large one. Use large HD PNG sprites/backgrounds which are a power of 2, so they scale nicely. No vectors. Use the player's native resolution. Scale the game area (not the HUD) to fit (resulting zooming in some and cropping the game area sides if necessary for widescreen, no stretch), but always fill the screen. Have a min and max resolution limit for small and very large displays where you will just change the resolution(?) or scale up/down to fit. What I am a bit confused though is what math formula I would use to scale the game area correctly based on the resolution no matter the aspect ratio, fully fit in a square screen and with some clip to the sides for widescreen. Pseudocode would help as well. :)

    Read the article

  • How to implement a simple bullet trajectory

    - by AirieFenix
    I searched and searched and although it's a fair simple question, I don't find the proper answer but general ideas (which I already have). I have a top-down game and I want to implement a gun which shoots bullets that follow a simple path (no physics nor change of trajectory, just go from A to B thing). a: vector of the position of the gun/player. b: vector of the mouse position (cross-hair). w: the vector of the bullet's trajectory. So, w=b-a. And the position of the bullet = [x=x0+speed*time*normalized w.x , y=y0+speed*time * normalized w.y]. I have the constructor: public Shot(int shipX, int shipY, int mouseX, int mouseY) { //I get mouse with Gdx.input.getX()/getY() ... this.shotTime = TimeUtils.millis(); this.posX = shipX; this.posY = shipY; //I used aVector = aVector.nor() here before but for some reason didn't work float tmp = (float) (Math.pow(mouseX-shipX, 2) + Math.pow(mouseY-shipY, 2)); tmp = (float) Math.sqrt(Math.abs(tmp)); this.vecX = (mouseX-shipX)/tmp; this.vecY = (mouseY-shipY)/tmp; } And here I update the position and draw the shot: public void drawShot(SpriteBatch batch) { this.lifeTime = TimeUtils.millis() - this.shotTime; //position = positionBefore + v*t this.posX = this.posX + this.vecX*this.lifeTime*speed*Gdx.graphics.getDeltaTime(); this.posY = this.posY + this.vecY*this.lifeTime*speed*Gdx.graphics.getDeltaTime(); ... } Now, the behavior of the bullet seems very awkward, not going exactly where my mouse is (it's like the mouse is 30px off) and with a random speed. I know I probably need to open the old algebra book from college but I'd like somebody says if I'm in the right direction (or points me to it); if it's a calculation problem, a code problem or both. Also, is it possible that Gdx.input.getX() gives me non-precise position? Because when I draw the cross-hair it also draws off the cursor position. Sorry for the long post and sorry if it's a very basic question. Thanks!

    Read the article

  • Why does my terrain turn white when I get close to it?

    - by Starkers
    When I zoom in on my terrain it goes white: The further in I zoom, the greater the whiteness becomes. Is this normal? Is this to speed up rendering or something? Can I turn it off? I'm also getting these error messages in the console over and over again: rc.right != m_GfxWindow-GetWidth() || rc.bottom != m_GfxWindow-GetHeight() and GUI Window tries to begin rendering while something else has not finished rendering! Either you have a recursive OnGUI rendering, or previous OnGUI did not clean up properly. Does this bear any correlation on the issue? Update I create virtual desktops to flit between using the program Deskpot. Turning this program off and restarting has stopped the above errors appearing in the console. However, I still get white terrain when I zoom in. Not a single error message. I've restarted my computer to no avail. I have an Asus NVidia GeForce GTX 760 2GB DDR5 Direct CU II OC Edition Graphics Card. Any known issues? Update I don't think it's fog...

    Read the article

  • Need help in determing what, if any, tools can be used to create a free Flash game

    - by ReaperOscuro
    Yes I proudly -and sadly- declare that I am a complete nincompoop when it comes to Flash, and I have been fishing around the big wide web for information. The reason for this is that I have been contracted to create a game(s) for a website -the usual flash-based games caveat. Please I do not mean things like by those gaming generator websites, I mean small yet professional games- but the caveat, as always, is that impossible dream: it needs to be done all for free. The budget...well imagine it as not there. Annoyingly is that I am a game designer yes, but with a ridiculously tight deadline I haven't got much time to re-learn (ah the heady days of programming at uni) everything by the end of March, so I'd like to ask some people who know their stuff rather than keep looking at a gazillion different things. This is my understanding: with the flash sdk you can create a game, albeit you need to be pretty programming savvy. FlashDevelop helps there -yet I am not entirely sure how. Yet even FD says to use Flash for the animation/graphics. Yes its undeniably powerful but as I said there is the unattainable demand of no money. The million dollar question: what, if any, tools can I use to create a free flash game?

    Read the article

  • Inverting matrix then decomposing gives different quaternion than decomposing then inverting the quat

    - by Fraser
    I'm getting different signs when I convert a matrix to quaternion and invert that, versus when I invert a matrix and then get the quaternion from it: Quaternion a = Quaternion.Invert(getRotation(m)); Quaternion b = getRotation(Matrix.Invert(m)); I would expect a and b to be identical (or inverses of each other). However, it looks like q1 = (x, y, -z, -w) while q2 = (-x, -y, w, z). In other words, the Z and W components have been switched for some reason. Note: getRotation() decomposes the transform matrix and returns just the rotation part of it (I've tried normalizing the result; it does nothing). The matrix m is a complete transform matrix and contains a translation (and possibly a scale) as well as a rotation. I'm using D3DXMatrixDecompose to do the actual decomposition.

    Read the article

  • XNA Quadtree with LOD

    - by Byron Cobb
    I'm looking to create a fairly large environment, and as such would like to implement a quadtree and use LOD on it. I've looked through numerous examples and I get the basic idea of a quadtree. Start with a root node with 4 vertices covering the whole map and divide into 4 children nodes until I meet some criteria(max number of triangles) I'm looking for some very very basic algorithm or explanation with respect to drawing the quadtree. What vertices need to be stored per iteration? When do I determine what vertices to draw? When to update indices and vertices? Hope to integrate the bounding frustrum? Do I include parent and child vertices? I'm looking for very simple instruction on what to do. I've scoured the internet for days now looking, but everyone adds extra code and a different spin without explanation. I understand quadtrees, but not with respect to 3d rendering and lod. A link to an outside source will probably have been read by myself already and won't help. Regards, Byron.

    Read the article

  • Problem with drawing textures in OpenGL ES

    - by droidmachine
    I'm developing a 2D game for Android and i'm using the framework which has been told in the book which named Beginning Android Games by Mario Zechner.So my framework is well designed and using OpenGL 1.1.It's similar to libgdx. When i put my textures adjacent each other in my 2d surface,there are some spaces size as 1 px.But this problem only occur on my tablet.There aren't a problem like this on my phone.It's like in this picture: What can be the problem?I can't fix it from one week.

    Read the article

  • How to change the sprite colors

    - by Mr_Qqn
    In my rhythm game, I have a note object which can be of different colors depending on the note chart. I could use a sprite sheet with all the different color variations I use, but I would prefer to parametrize this. (For information, a note sprite is compound with one main color, for example a red note has only red, light red and dark red.) So, how to change the colors of a sprite basing on a new color ? I'm working with opengl, but any algorithm or math explanation will do. :) Thanks

    Read the article

  • Ways to earn money through Flash games

    - by Maged
    If you like developing flash games just for fun, why not make money through them? There are different ways you can monetize your flash game: In Game Ads: Some common examples: Mochi Ads gamejacket ad4game CPMStar InviziAds You can make money by helping online gaming companies test and evaluate new games. Many of those companies are seeking feedback and reviews of their newest games. Find a sponsor and license your game. One of the quickest yet hardest ways to make money from the flash games you create is to find a website who is willing to sponsor them. With a single sponsorship, an individual can make anywhere from $1000-$7000 for a game. What are the best ads from these sites? If the game will be in social websites like Facebook and MySpace, will it still be useful to try other sites? Are there any other ways to earn money from a Flash game?

    Read the article

  • Vector Graphics in DirectX

    - by Doug
    I'm curious as to people's thoughts on the best way to use vector graphics in a directX game instead of rasterized textures(think Super Meat Boy). I want to remain resolution independent and don't want to downscale/upscale rasterized graphics. Also the idea would be for all assets to be vector graphics(again think Super Meat Boy). I've looked at Valve's paper "Improved Alpha-Tested Magnification for Vector Textures and Special Effects" and also looked at using shaders http://http.developer.nvidia.com/GPUGems3/gpugems3_ch25.html. Wondering if anyone has done something similar or an alternate approach. Cheers

    Read the article

  • Game programming course materials: What should it include?

    - by Esa
    I am tasked to create the course materials for a game programming class, and I’d like your opinion on what aspects and areas of game programming, such as game state management, game object storing or simple AI, should I include in it? The course is intented to be the first step into game programming for students with novice skills in programming. There will be mathematics as well, but I found that there are multiple questions, with good answers, on that subject already.

    Read the article

  • How can I test if an oriented rectangle contains another oriented rectangle?

    - by gronzzz
    I have the following situation: To detect whether is the red rectangle is inside orange area I use this function: - (BOOL)isTile:(CGPoint)tile insideCustomAreaMin:(CGPoint)min max:(CGPoint)max { if ((tile.x < min.x) || (tile.x > max.x) || (tile.y < min.y) || (tile.y > max.y)) { NSLog(@" Object is out of custom area! "); return NO; } return YES; } But what if I need to detect whether the red tile is inside of the blue rectangle? I wrote this function which uses the world position: - (BOOL)isTileInsidePlayableArea:(CGPoint)tile { // get world positions from tiles CGPoint rt = [[CoordinateFunctions shared] worldFromTile:ccp(24, 0)]; CGPoint lb = [[CoordinateFunctions shared] worldFromTile:ccp(24, 48)]; CGPoint worldTile = [[CoordinateFunctions shared] worldFromTile:tile]; return [self isTile:worldTile insideCustomAreaMin:ccp(lb.x, lb.y) max:ccp(rt.x, rt.y)]; } How could I do this without converting to the global position of the tiles?

    Read the article

  • In a Tower defense game, how to do buffs/debuffs

    - by Gabe
    The question is at the very bottom. If you understand Buffs/Debuffs in tower defense games then you should skip the bulk of this question and go to the bottom (seperated with the long line) I plan on making an IPhone TD game. The fact that its an iPhone game isn't relevant but I am coding in Objective-c with Cocos2D. I am relatively inexperienced in the field of game design so I'm looking for some advice from someone experienced in this field. In tower defense, there are two things that are relevant to my question: towers/enemies (both have their own classes/children). They each have stats like hp, damage, speed, etc. I want to add buffs/defuffs, for instance: Towers A,B and C each have 15 base damage. Tower D would be a buff tower with no damage, a tower with an AOE(area of effect) aura that gives 10% damage to all towers in range. Tower E might slow enemies in its AOE, a debuff. Stuff like that. The same could go for enemies. Enemy A is a boss that has a slow aura that affects towers and slows their base attack speed or something along those lines. So the question is, what would be the most effective way to implement this? If it was just towers then I would just mess around with the tower classes, but since tower classes and enemy classes are both affected, should I make a buff class? TD games can consume quite a bit of memory with large amounts of creeps and towers, and buffs I feel like would also consume quit a bit... So I'm trying to be as effective as possible.

    Read the article

  • Why use 3d matrix and camera in 2D world for 2d geometric figures?

    - by Navy Seal
    I'm working in XNA on a 2d isometric world/game and I'm using DrawUserPrimitives to draw some geometric figures... I saw some tutorials about creating dynamic shadows but I didn't understood why they use a "3d" matrix to control the transformations since the figure I'm drawing is in 2d perspective. I know I'm drawing a 2d figure in 3d but I still can't understand if I really need to work with the matrix. Is there any advantage in using a 3d Matrix to control camera and view? Any reason why I can't just update my vertex's positions by using a regular method since the view is always the same... And since I want to work only with single figures, won't this cause all the geometric figures have the same transformations simultaneously? To understand better what I mean here's a video http://www.youtube.com/watch?v=LjvsGHXaGEA&feature=player_embedded

    Read the article

  • Resources for 2D rendering using OpenGL?

    - by nightcracker
    I noticed that there is quite some difference between 3D and 2D rendering using OpenGL, the techniques are different - pixel-perfect placing is a lot more desirable, among other things. Are there any good (complete) references on using OpenGL for rendering 2D graphics? There are quite a few "tutorials" around on the net that help you open a window, set up a half-decent environment and draw a sprite, but no real good information on rotation, blending, lightning, drawing order, using the z-buffer, particles, "complex" primitives (circles, stars, cross symbols), ensuring pixel-perfect rendering, instancing and many other staple 2D effects/techniques. Any books, great blogs, anything? Any particular awesome libraries to read?

    Read the article

  • General visual effects to meshes/entities

    - by Pacha
    I am trying to add some visual effects to some entities, meshes, or whatever you want to call them as they are looking pretty dull in my game right now. What I want to achieve is this: http://youtu.be/zox8935PLw0?t=36s (the "texture" gets disintegrated and then goes back to normal, covering the whole mesh.) Also I would like to know what is the best way to add effects like the one in the video to my game (for example, thunder effects, shattering, etc.) I know that I can do some things with shaders, but I haven't learned them too well and I am still in a beginner level. I am using Ogre3D, and GLSL for shaders. Thanks! Note: this is a screen-shot of my game, I want to apply the effect in the video to my main character):

    Read the article

  • Game physics / 2D Collision detection AS3

    - by Jery
    I know there are some methods you can use like hittestPoint and so on, but I want to see where my movieclip colliedes with another another movieclip. Any other methods I can use? by any chance does somebody know some a good introduction to game physics? Im asking because I coded a small engine and pretty much the whole code is spagetti code thats why I would like to know how you can setup something like this properly

    Read the article

< Previous Page | 420 421 422 423 424 425 426 427 428 429 430 431  | Next Page >