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• Anti-cheat Javascript for browser/HTML5 game

  - by Billy Ninja

  I'm planning on venturing on making a single player action rpg in js/html5, and I'd like to prevent cheating. I don't need 100% protection, since it's not going to be a multiplayer game, but I want some level of protection. So what strategies you suggest beyond minify and obfuscation? I wouldn't bother to make some server side simple checking, but I don't want to go the Diablo 3 path keeping all my game state changes on the server side. Since it's going to be a rpg of sorts I came up with the idea of making a stats inspector that checks abrupt changes in their values, but I'm not sure how it consistent and trusty it can be. What about variables and functions escopes? Working on smaller escopes whenever possible is safer, but it's worth the effort? Is there anyway for the javascript to self inspect it's text, like in a checksum? There are browser specific solutions? I wouldn't bother to restrain it for Chrome only in the early builds.

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• How to implement an experience system?

  - by Roflcoptr

  I'm currently writing a small game that is based on earning experiences when killing enemies. As usual, each level requires more experience gain than the level before, and on higher levels killing enemies awards more experience. But I have problem balancing this system. Are there any prebuild algorithms that help to caculate how the experience curve required for each level should look like? And how much experience an average enemy on a specific level should provide?

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• What math should all game programmers know?

  - by Tetrad

  Simple enough question: What math should all game programmers have a firm grasp of in order to be successful? I'm not specifically talking about rendering math or anything in the niche areas of game programming, more specifically just things that even game programmers should know about, and if they don't they'll probably find it useful. Note: as there is no one correct answer, this question (and its answers) is a community wiki. Also, if you would like fancy latex math equations, feel free to use http://mathurl.com/.

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• Obtaining In game Warcraft III data to program standalone AI

  - by Slav

  I am implementing common purpose behavioral algorithm and would like to test it under my lovely Warcraft III game and watch how it will fight against real players. The problem is how to obtain information about in game state (units, structures, environment, etc. ). Algorithm needs access to hard drive and possibly distributed computing, that's why JASS (WC3 Editor language) usage doesn't solve the issue. Direct 3D hooking is an approach, but it wasn't done for WC3 yet and significant drawback is inability to watch online at how AI performs since it uses the viewport to issue commands. How in game data can be obtained to a different process in a fastest and easiest way? Thank you.

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• Mixing XNA and silverlight gives wierd graphics

  - by Mech0z

  I making a small 3dgame which is made as a Silverlight and XNA app, but when I draw the sprites the graphics becomes all wierd. All my primitive types are rendered correctly, but my 3d models are just wierd My Draw is like this when silverlight is set to draw private void OnDraw(object sender, GameTimerEventArgs e) { // Render the Silverlight controls using the UIElementRenderer elementRenderer.Render(); // Clear the screen to a solid color SharedGraphicsDeviceManager.Current.GraphicsDevice.Clear(Color.CornflowerBlue); switch (gameState) { case GameState.ChooseStarter: TextBlockStatus.Text = "Find Starting Player"; break; case GameState.PlaceBrick: TextBlockPlayer.Text = (playerTurn == PlayerTurn.PlayerOne) ? "Player One" : "Player Two"; TextBlockState.Text = "Place Brick"; foreach (IGraphicObject obj in _3dObjects) { obj.Draw(cameraPosition, e); } break; case GameState.GiveBrick: TextBlockState.Text = "Give Brick"; break; } spriteBatch.Begin(); // Using the texture from the UIElementRenderer, // draw the Silverlight controls to the screen spriteBatch.Draw(elementRenderer.Texture, cameraProjection, Color.White); spriteBatch.End(); } This gives me this output If I comment the spritebatch lines out I get the correct output, except the silverlight text is of course not shown I am not entirely sure what to look for except that zero vector I am giving to the spritebatch, but if thats the source I have no idea what I am supposed to set it as epspecially when its a 2d vector

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• WinAPI window taking 50% of CPU when idle

  - by henryprescott

  I'm currently working on a game that creates a window using WindowsAPI. However, at the moment the process is taking up 50% of my CPU. All I am doing is creating the window and looping using the code found below: int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd) { MSG message = {0}; WNDCLASSEX wcl = {0}; wcl.cbSize = sizeof(wcl); wcl.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; wcl.lpfnWndProc = WindowProc; wcl.cbClsExtra = 0; wcl.cbWndExtra = 0; wcl.hInstance = hInstance = hInstance; wcl.hIcon = LoadIcon(0, IDI_APPLICATION); wcl.hCursor = LoadCursor(0, IDC_ARROW); wcl.hbrBackground = 0; wcl.lpszMenuName = 0; wcl.lpszClassName = "GL2WindowClass"; wcl.hIconSm = 0; if (!RegisterClassEx(&wcl)) return 0; hWnd = CreateAppWindow(wcl, "Application"); if (hWnd) { if (Init()) { ShowWindow(hWnd, nShowCmd); UpdateWindow(hWnd); while (true) { while (PeekMessage(&message, 0, 0, 0, PM_REMOVE)) { if (message.message == WM_QUIT) break; TranslateMessage(&message); DispatchMessage(&message); } if (message.message == WM_QUIT) break; if (hasFocus) { elapsedTime = GetElapsedTimeInSeconds(); lastEarth += elapsedTime; lastUpdate += elapsedTime; lastFrame += elapsedTime; lastParticle += elapsedTime; if(lastUpdate >= (1.0f / 100.0f)) { Update(lastUpdate); lastUpdate = 0; } if(lastFrame >= (1.0f / 60.0f)) { UpdateFrameRate(lastFrame); lastFrame = 0; Render(); SwapBuffers(hDC); } if(lastEarth >= (1.0f / 10.0f)) { UpdateEarthAnimation(); lastEarth = 0; } if(lastParticle >= (1.0f / 30.0f)) { particleManager->rightBooster->Update(); particleManager->rightBoosterSmoke->Update(); particleManager->leftBooster->Update(); particleManager->leftBoosterSmoke->Update(); particleManager->breakUp->Update(); lastParticle = 0; } } else { WaitMessage(); } } } Cleanup(); UnregisterClass(wcl.lpszClassName, hInstance); } return static_cast<int>(message.wParam); } So even when I am not drawing anything when the window has focus it still takes up 50%. I don't understand how this is taking up so much system resources. Am I doing something wrong? Any help would be much appreciated, thank you!

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• Packing jar files into library jar files

  - by Hillel

  Firstly, this question is not about packing a simple jar file (e.g. lwjgl) into a runnable jar file. I know how to do this using JarSplice. So if I have a game which uses JInput, I will pack my game jar and jinput.jar using JarSplice and enter the natives in the process. The problem arises when I want to create a custom library that uses JInput, and then pack that into my games. See, the whole idea of writing a game library is that I don't ever have to even copy code like the wrapper I wrote for JInput Controller, and I always have a definitive version inside a library jar. Basically what I wanna do is create a jar file of my library, pack jinput.jar into it using JarSplice, possibly with the natives as well, and then when I want to export a jar of my game, I either export it automatically through Eclipse with the library jar, or, if that doesn't work, use JarSplice. I've tried several solutions, and nothing works. When I try to pack the game jar and the library jar using JarSplice, I get an error saying that there's either duplicate .project or .classpath. When I try to export my game through Eclipse with the library jar, it won't run (which is to be expected), but then, if I try to attach the natives with JarSplice, it doesn't give me any errors but the jar doesn't run. I'm not expecting anyone to solve this, but if anyone has an idea, something that will allow me to never look at the Gamepad code ever again, that would be awesome. I don't care if I have to package my library jar using JarSplice 5 times, and then do the same with the game jar, as long as it works. Otherwise I'll just have to copy the Gamepad class into every project alongside the library jar. :(

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• How to design a replay system

  - by daddz

  So how would I design a replay system? You may know it from certain games like Warcraft 3 or Starcraft where you can watch the game again after it has been played already. You end up with a relatively small replay file. So my questions are: How to save the data? (custom format?) (small filesize) What shall be saved? How to make it generic so it can be used in other games to record a time period (and not a complete match for example)? Make it possible to forward and rewind (WC3 couldn't rewind as far as I remember)

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• Xna Loading Screens

  - by Cyral

  I'm making a 2D XNA game. I'd like to implement loading screens when stuff has to load for a while. Like when I login to an account, connect to the server, and generate worlds. I'm pretty sure it needs to be multithreaded, because I want to be able to do something like "Generating World 10%...11%...". GenerateWorld() { //Call StartLoading("Generating World"); or something //Starter generating, Updating progress... //End loading screen and fade into world } Help appreciated, I'm new.

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• emo-framework in android move on collision of sprites with physics

  - by KaHeL

  I'm developing my first ever game for Android where I'm still learning about using of framework. To begin I made two sprites of ball where one ball is movable by dragging and another one is just standing on it's place on load. Now I've already added the collision listener for both sprites and as tested it's working properly. Now what I need to learn is on how can I add physics on both sprites where when they collide the standing sprite will move based on the physics and bounce around the screen. It would be best if you teach it to me step by step since I'm a little slow on this. Here's my nut so far: local stage = emo.Stage(); class Okay_1 { sprite = null; spriteok = null; dragStart = false; angle = 0; // Called when the stage is loaded function onLoad() { print("Level_1 is loaded!"); // Create new sprite and load 'f1.png' sprite = emo.Sprite("f1.png"); sprite.moveCenter(stage.getWindowWidth() * 0.5, stage.getWindowHeight() * 0.5); sprite.load(); spriteok = emo.Sprite("okay.png") spriteok.setWidth(100); spriteok.setHeight(100); spriteok.load(); // Check if the coordinate (X=100, Y=100) is inside the sprite if (spriteok.contains(100, 100)) { print("contains!"); } // Does the sprite collides with the other sprite? if (spriteok.collidesWith(sprite)) { print("collides!"); } } function onMotionEvent(ev) { if (ev.getAction() == MOTION_EVENT_ACTION_DOWN) { // Moves the sprite at the position of motion event angle = sprite.getAngle(); sprite.remove(); sprite = emo.Sprite("f2.png"); sprite.load(); sprite.rotate(angle); sprite.moveCenter(ev.getX(), ev.getY()); sprite.rotate(sprite.getAngle()+10); // Check if the coordinate (X=100, Y=100) is inside the sprite if (sprite.contains(sprite.getWidth(), sprite.getHeight())) { print("contains!"); } // Does the sprite collides with the other sprite? if (sprite.collidesWith(spriteok)) { print("collides!"); } dragStart = true; }else if (ev.getAction() == MOTION_EVENT_ACTION_MOVE) { if (dragStart) { // Moves the sprite at the position of motion event sprite.moveCenter(ev.getX(), ev.getY()); sprite.rotate(sprite.getAngle()+10); // Check if the coordinate (X=100, Y=100) is inside the sprite if (sprite.contains(sprite.getWidth(), sprite.getHeight())) { print("contains!"); } // Does the sprite collides with the other sprite? if (sprite.collidesWith(spriteok)) { print("collides!"); } } }else if (ev.getAction() == MOTION_EVENT_ACTION_UP || ev.getAction() == MOTION_EVENT_ACTION_CANCEL) { if (dragStart) { // change block color to red dragStart = false; angle = sprite.getAngle(); sprite.remove(); sprite = emo.Sprite("f1.png"); sprite.load(); sprite.moveCenter(ev.getX(), ev.getY()); sprite.rotate(angle); // Check if the coordinate (X=100, Y=100) is inside the sprite if (sprite.contains(sprite.getWidth(), sprite.getHeight())) { print("contains!"); } // Does the sprite collides with the other sprite? if (sprite.collidesWith(spriteok)) { print("collides!"); } } } } // Called when the stage is disposed function onDispose() { sprite.remove(); // Remove the sprite print("Level_1 is disposed!"); } } function emo::onLoad() { emo.Stage().load(Okay_1()); }

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• Alpha blend 3D png texture in XNA

  - by ProgrammerAtWork

  I'm trying to draw a partly transparent texture a plane, but the problem is that it's incorrectly displaying what is behind that texture. Pseudo code: vertices1 basiceffect1 // The vertices of vertices1 are located BEHIND vertices2 vertices2 basiceffect2 // The vertices of vertices2 are located IN FRONT vertices1 GraphicsDevice.Clear(Blue); PrimitiveBatch.Begin(); //if I draw like this: PrimitiveBatch.Draw(vertices1, trianglestrip, basiceffect1) PrimitiveBatch.Draw(vertices2, trianglestrip, basiceffect2) //Everything gets draw correctly, I can see the texture of vertices2 trough //the transparent parts of vertices1 //but if I draw like this: PrimitiveBatch.Draw(vertices2, trianglestrip, basiceffect2) PrimitiveBatch.Draw(vertices1, trianglestrip, basiceffect1) //I cannot see the texture of vertices1 in behind the texture of vertices2 //Instead, the texture vertices2 gets drawn, and the transparent parts are blue //The clear color PrimitiveBatch.Draw(vertice PrimitiveBatch.End(); My question is, Why does the order in which I call draw matter?

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• Different Style Technique

  - by Muhammad Iqbal Dwi Cahyo

  I'm newbie here.. Please anyone knows, to create a character that his/her Style Tech is had a different kind of movement... I wanna make my character 2d his/her power technique like rasengan, I mean first the ball its just spining around and then going bigger and much more bigger so blow up if it touch his/her opponent? How the coding is, and what I've must do? Please your guide, thank's a lot... ^_^

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• Is it better to hard code data or find an algorithm?

  - by OghmaOsiris

  I've been working on a boardgame that has a hex grid as the board (the upper right grid in the image below) Since the board will never change and the spaces on the board will always be linked to the same other spaces around it, should I just hard code every space with the values that I need? Or should I use various algorithms to calculate links and traversals? To be more specific, my board game is a 4 player game where each player has a 5x5x5x5x5x5 hex grid (again, the upper right grid in th eimage above). The object is to get from the bottom of the grid to the top, with various obstacles in the way, and each players being able to attack eachother from the edge of their grid onto other players based on a range multiplier. Since the players grid will never change and the distance of any arbitrary space from the edge of the grid will always be the same, should I just hard code this number into each of the spaces, or should I still use a breadth first search algorithm when players are attacking? The only con I can think of for hard coding everything is that I'm going to code 9+ 2(5+6+7+8) = 61 individual cells. Is there anything else that I'm missing that I should consider using more complex algorithms?

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• What kind of steering behaviour or logic can I use to get mobiles to surround another?

  - by Vaughan Hilts

  I'm using path finding in my game to lead a mob to another player (to pursue them). This works to get them overtop of the player, but I want them to stop slightly before their destination (so picking the penultimate node works fine). However, when multiple mobs are pursuing the mobile they sometimes "stack on top of each other". What's the best way to avoid this? I don't want to treat the mobs as opaque and blocked (because they're not, you can walk through them) but I want the mobs to have some sense of structure. Example: Imagine that each snake guided itself to me and should surround "Setsuna". Notice how both snakes have chosen to prong me? This is not a strict requirement; even being slightly offset is okay. But they should "surround" Setsuna.

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• How are bullets simulated in video games?

  - by mahen23

  I have been playing games like MW2 recently and, as a programmer, I tend to ask myself how do they make the game so immersive. For example, how to they simulate bullet speed. When an NPC fires a bullet from his gun, does the bullet really travel from his gun to the given target or do they they completely ignore this part and just put a bullet hole on the target? If the bullet is really travelling from the gun to the target, at what speed is it actually travelling?

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• Correct level of abstraction for a 3d rendering component?

  - by JohnB

  I've seen lots of questions around this area but not this exact question so apologies if this is a duplicate. I'm making a small 3d game. Well to be honest, it's just a little hobby project and likely won't turn out to be an actual game, I'll be happy to make a nice graphics demo and learn about 3d rendering and c++ design. My intent is to use direct3d9 for rendering as I have some little experience of it, and it seems to meet my requirements. However if I've learned one thing as a programmer it's to ask "is there any conceivable reason that this component might be replaced by a different implmentation" and if the answer is yes then I need to design a proper abstraction and interface to that component. So even though I intend to implment d3d9 I need to design a 3d interface that could be implemented for d3d11, opengl... My question then is what level is it best to do this at? I'm thinking that an interface capable of creating and later drawing Vertex buffers and index buffers Textures Vertex and Pixel "shaders" Some representation of drawing state (blending modes etc...) In other words a fairly low level interface where my code to draw for example an animated model would use the interface to obtain abstract vertex buffers etc. I worry though that it's too low level to abstract out all the functionallity I need efficiently. The alternative is to do this at a higher level where the interface can draw objects, animations, landscapes etc, and implement them for each system. This seems like more work, but it more flexible I guess. So that's my question really, when abstracting out the drawing system, what level of interface works best?

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• Blending animations for more character movements

  - by Noob Saibot

  I am making a hack n slash 3rd person game. And I want the character movements to be more dynamic not like fighting games where you have a moves list. I want to animate tons of different animations and have them "Tween" between each other? Because I want the controls to not be keyboard mouse. I want it to be all keyboard. that way you have up to 10 inputs (All your fingers) to blend and morph animations to create more fluid movements. In the end this will almost be similar to characters typing a phrase or string of keys rather than move forward mouse look click to melee. My question is. Has anyone done this before and would someone go about trying to tween lets say one for key on the keyboard excluding Tab, Caps, R+Shift, L+Shift, Enter, R+Ctrl, L+Ctrl, L+Alt, R+Alt, Windows Key, and Menu. So thats all the numbers, letters and punctuation keys. Thats 46 keys gives me a combination of 46P1 = 5502622159812088949850305428800254892961651752960000000000L (used Python) and with a minimum entry value of 2 keypresses shortening to half. This is not humanly possible to create so many inique animations in one lifetime. But I'm guessing there is a reason this hasn't been done already. Or if I just used 10 basic keys. Maybe ASDF SPACE (RIGHT HAND) 456+0 (LEFT HAND KEYPAD) it would give me 3,628,800 posible unique animations.

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• How to load stacking chunks on the fly?

  - by Brettetete

  I'm currently working on an infinite world, mostly inspired by minecraft. A Chunk consists of 16x16x16 blocks. A block(cube) is 1x1x1. This runs very smoothly with a ViewRange of 12 Chunks (12x16) on my computer. Fine. When I change the Chunk height to 256 this becomes - obviously - incredible laggy. So what I basically want to do is stacking chunks. That means my world could be [8,16,8] Chunks large. The question is now how to generate chunks on the fly? At the moment I generate not existing chunks circular around my position (near to far). Since I don't stack chunks yet, this is not very complex. As important side note here: I also want to have biomes, with different min/max height. So in Biome Flatlands the highest layer with blocks would be 8 (8x16) - in Biome Mountains the highest layer with blocks would be 14 (14x16). Just as example. What I could do would be loading 1 Chunk above and below me for example. But here the problem would be, that transitions between different bioms could be larger than one chunk on y. My current chunk loading in action For the completeness here my current chunk loading "algorithm" private IEnumerator UpdateChunks(){ for (int i = 1; i < VIEW_RANGE; i += ChunkWidth) { float vr = i; for (float x = transform.position.x - vr; x < transform.position.x + vr; x += ChunkWidth) { for (float z = transform.position.z - vr; z < transform.position.z + vr; z += ChunkWidth) { _pos.Set(x, 0, z); // no y, yet _pos.x = Mathf.Floor(_pos.x/ChunkWidth)*ChunkWidth; _pos.z = Mathf.Floor(_pos.z/ChunkWidth)*ChunkWidth; Chunk chunk = Chunk.FindChunk(_pos); // If Chunk is already created, continue if (chunk != null) continue; // Create a new Chunk.. chunk = (Chunk) Instantiate(ChunkFab, _pos, Quaternion.identity); } } // Skip to next frame yield return 0; } }

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• 2.5D action RPG game

  - by Phorden

  I want to make a 2.5D action RPG game in the next say five years. I need to learn a language first and I have started with C#. I haven't gotten too far into learning it and I would like advice on the best way to approach making a game like this in the long run. Work with XNA studios or stop and learn C++ and UDK? Or maybe there is another good way to approach this. I want to learn programming, so just using a visual editor without learning to code is not the way I want to go. I also don't want to write my game engine from scratch. I'm all ears for advice.

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• Is dynamic casting Entities A good design?

  - by Milo

  For my game, Everything inherits from Entity, then other things like Player, PhysicsObject, etc, inherit from Entity. The physics engine sends collision callbacks which has an Entity* to the B that A collided on. Then, lets say A is a Bullet, A tries to cast the entity as a player, if it succeeds, it reduces the player's health. Is this a good design? The problem I have with a message system is that I'd need messages for everything, like: entity.sendMessage(SET_PLAYER_HEALTH,16); So that's why I think casting is cleaner.

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• Acceptable sound quality: stereo needed for an Android game?

  - by Thomas Calc

  I have various simple short sound effects (damage sound, dying sound, thunderbolt, fanfare, breaking) for a game that is developed for Android currently. I use OGG files: 96kbps VBR, 44.1KHz, 2 channels (that means stereo, right?). I read the other stackexchange topics about "acceptable sound quality", but they're too general, address too many things. My experience is that even with 80kbps, my effects sound OK. But I tested it on a limited number of Android devices (including a Sony Ericsson Xperia Neo and a HTC Desire HD). My questions: For mobile phones and tablets, generally, what parameters are recommended? Won't my 80kbps sounds be bad on a newer device (such as a modern tablet)? I don't hear any difference between stereo and mono (2 channels vs. 1 channel, right?), is there any noticeable difference at all for mobile phones / tablets? (in terms of the player experience) May it worth it at all? I assume that stereo sounds take much more in memory (when they're decoded to PCM), despite of the fact that the compressed OGG size is practically the same. Reacting to Roy T.'s great comment: Actually, I couldn't measure the PCM size (Android decodes OGG internally), but I thought that stereo will take more space than mono when uncompressed After throwing out one of the WAV channels in Audacity, and re-exporting it: The new WAV file size is half than before The OGG file size is practically the same as before The sound effects and game music was recorded by my friend who is an experienced hobby musician/composer, but he knows little about computers & software so he just gave me some high-quality WAV files generated via his hardware.These were stereo, but if I check them in Audacity, both channels appear to be exactly the same.Can I consider them the same (= moving to mono), or might there be some unnoticeable differences to the human eye?

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• How do I scroll to follow my sprite in the physical world?

  - by Esteban Quintero

  I am using andengine to make a game where a sprite (player) is going up across the stage, and I want the camera to stay centred on the sprite the entire time. This is my world so far: final Rectangle ground = new Rectangle(0, CAMERA_HEIGHT - 2, CAMERA_WIDTH, 2, vertexBufferObjectManager); final Rectangle roof = new Rectangle(0, 0, CAMERA_WIDTH, 2, vertexBufferObjectManager); final Rectangle left = new Rectangle(0, 0, 2, CAMERA_HEIGHT, vertexBufferObjectManager); final Rectangle right = new Rectangle(CAMERA_WIDTH - 2, 0, 2, CAMERA_HEIGHT, vertexBufferObjectManager); final FixtureDef wallFixtureDef = PhysicsFactory.createFixtureDef(0, 0.5f, 0.5f); PhysicsFactory.createBoxBody(this.mPhysicsWorld, ground, BodyType.StaticBody, wallFixtureDef); PhysicsFactory.createBoxBody(this.mPhysicsWorld, roof, BodyType.StaticBody, wallFixtureDef); PhysicsFactory.createBoxBody(this.mPhysicsWorld, left, BodyType.StaticBody, wallFixtureDef); PhysicsFactory.createBoxBody(this.mPhysicsWorld, right, BodyType.StaticBody, wallFixtureDef); /* Create two sprits and add it to the scene. */ this.mScene.setBackground(autoParallaxBackground); this.mScene.attachChild(ground); this.mScene.attachChild(roof); this.mScene.attachChild(left); this.mScene.attachChild(right); this.mScene.registerUpdateHandler(this.mPhysicsWorld); The problem is that when the sprite reaches the top wall, it crashes. How can I fix this?

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• unity4.3 rigidbody2d unexpected force behaviour

  - by Lilz Votca Love

  So guys ive edited the question and here is what my problem is i have a player which has a rigidbody2d attached to it.my player is able to doublejump in the air nicely and stick to walls when colliding with them and slowly slides to the ground.All movement is handle through physics and no transform manipulations.here i did something similar to this in the FixedUpdate of my player. void FixedUpdate() { if(wall && Input.GetButtonDown("Jump")) { if(facingright)//player is facing the left side of the wall { rigidbody2D.Addforce(new vector2(-1f,2f)*jumpforce); /*Now the player should jump backwards following this directional vector and should follow a smooth curve which in this part works well*/ } else { rigidbody2D.Addforce(new vector2(1f,2f)*jumpforce); /*Now this is where everything gets complicated as you should have noticed this is the same directional vector only the opposite x axis value and the same amount of force is used but it behaves like the red curve in the picture below*/ } } } bad behaviour and vector in red .I tested the same thing(both addforce methods) for a simple jump and they exactly behave like mentionned above in the picture.so here is my problem.Jumping diagonally forward with rigidbody2d.addforce() do not have the same impact,do not follow the same curve as jumping the opposite direction with the same exact amount of force.if i could fix this or get past this i could implement a walljump system like a ninja jumping in zigzag between two opposite wall to climb them.Any ideas or alternatives?

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• C++ Directx 11 D3DXVec3Unproject

  - by Miguel P

  Hello dear people from the underworld called the internet. So guys, Im having a small issue with D3DXVec3Unproject, because I'm currently using Directx 11 and not 10, and the requirements for this function is: D3DXVECTOR3 *pOut, CONST D3DXVECTOR3 *pV, CONST D3D10_VIEWPORT *pViewport, CONST D3DXMATRIX *pProjection, CONST D3DXMATRIX *pView, CONST D3DXMATRIX *pWorld As you may have noticed, it requires a D3D10_VIEWPORT, and I'm using a Directx 11 viewport, D3D11_VIEWPORT. So do you have any ideas how i can use D3DXVec3Unproject with Directx 11? Thank You

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• Video Encoding library for C++ game

  - by Paulo Pinto

  I'm looking for a video encoding library in C++ that I can use to record game footage. It can not be an external application like Fraps, it must be a library. Ideally the encoding can be done in real time without affecting game performance too much, although this is not a must have requirement. Another preference is that the video file being saved from the game is already compressed and ready to be used by most video players without any further processing. I realize that this might not be possible especially for real time encoding, so I would accept a trade off of having to process the file later for better compression and/or better file format. I'd like to hear about your experience integrating the library into a game if possible and any interesting trade offs you had to make. Some libraries support more that one file format or codec, so advice on the file format would also be appreciated.

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