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  • Embed Unity3D and load multiple games from a single app

    - by Rafael Steil
    Is is possible to export an entire unity3d project/game as an AssetBundle and load it on iOS/Android/Windows on an app that doesn't know anything about such game beforehand? What I have in mind is something like the web plugin does - it loads a series of .unity3d files over http, and render inline in the browser window. Is it even possible to do something closer for iOS/Android? I have read a lot of docs so far, but still can't be sure: http://floored.com/blog/2013/integrating-unity3d-within-ios-native-application.html http://docs.unity3d.com/Manual/LoadingResourcesatRuntime.html http://docs.unity3d.com/Manual/AssetBundlesIntro.html The code from the post at http://forum.unity3d.com/threads/112703-Override-Unity-Data-folder-path?p=749108&viewfull=1#post749108 works for Android, but how about iOS and other platforms?

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  • JPEG images not loading on PlayBook (Marmalade + iwgame)

    - by Vexille
    I'm using iwgame on a test project and I was trying to render different resolutions of JPG and PNG images. Everything works fine on the Marmalade Simulator, however once I deploy the game to our PlayBook and run it, only the PNG images are shown. I have declared the images in the MKB file and on a XML file iwgame's using to load the images. I've checked the deployments folder and all images are present in the intermediatefiles/native folder. We're currently using a BlackBerry only license, so we can only test this on the PlayBook, but we do intend to get a Community license and deploy to iOS and Android devices eventually (I'm not sure if this is a problem exclusive to the PlayBook). I really don't know if this is a Marmalade or a iwgame issue. I have a different test project without iwgame and it simply won't run with jpg images (I get the error: 'Could not find handler for extension "jpg"'). While searching for a sollution, I've seen people talking about using libjpg, but I've also found that Marmalade supposedly has integrated native jpeg support (and because of that iwgame has abandoned their jpeg loading support since v0.340), so I don't know what to think. I'm currently using the most recent versions of both Marmalade and iwgame, I believe: Marmalade 6.1.2 and iwgame 0.400. Also, please let me know if there's an easier or better way to do this, such as linking libjpg or something (I'm not exactly sure how to do this). I really would appreciate some help with this, there's a huge difference in size for the images we're planning to use, from a ~500kb jpg file to a ~3.5mb png file. Thanks, guys.

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  • DrawIndexedPrimitives overdraws data in previous buffer if called in loop

    - by Daniel Excinsky
    I doubled the question from stackoverflow here, and will delete the opposite of a question that gave me the answer. I have the Draw method in one of my renderers, that loops through the dictionary and gets precollected and preinitialized buffers. When dictionary has only one element, everything is just fine. But with more elements what I get on the screen is only the data from the last buffer (I suppose, not sure) My Draw method: public void Draw(GameTime gameTime) { if (!_areStaticEffectsSet) { // blockEffect.Parameters["TextureAtlas"].SetValue(textureAtlas); blockEffect.Parameters["HorizonColor"].SetValue(World.HORIZONCOLOR); blockEffect.Parameters["NightColor"].SetValue(World.NIGHTCOLOR); blockEffect.Parameters["MorningTint"].SetValue(World.MORNINGTINT); blockEffect.Parameters["EveningTint"].SetValue(World.EVENINGTINT); blockEffect.Parameters["SunColor"].SetValue(World.SUNCOLOR); _areStaticEffectsSet = true; } blockEffect.Parameters["World"].SetValue(Matrix.Identity); blockEffect.Parameters["View"].SetValue(_player.CameraView); blockEffect.Parameters["Projection"].SetValue(_player.CameraProjection); blockEffect.Parameters["CameraPosition"].SetValue(_player.CameraPosition); blockEffect.Parameters["timeOfDay"].SetValue(_world.TimeOfDay); var viewFrustum = new BoundingFrustum(_player.CameraView * _player.CameraProjection); _graphicsDevice.BlendState = BlendState.Opaque; _graphicsDevice.DepthStencilState = DepthStencilState.Default; foreach (KeyValuePair<int, Texture2D> textureAtlas in textureAtlases) { blockEffect.Parameters["TextureAtlas"].SetValue(textureAtlas.Value); foreach (EffectPass pass in blockEffect.CurrentTechnique.Passes) { pass.Apply(); //TODO: ?????????? ??????????????? ?? ?????? ?? ??????? ??????? VertexBuffer ? IndexBuffer foreach (Chunk chunk in _world.Chunks.Values) { if (chunk == null || chunk.IsDisposed) { continue; } if (chunk.BoundingBox.Intersects(viewFrustum) && chunk.GetBlockIndexBuffer(textureAtlas.Key) != null) { lock (chunk) { if (chunk.GetBlockIndexBuffer(textureAtlas.Key).IndexCount > 0) { VertexBuffer vertexBuffer = chunk.GetBlockVertexBuffer(textureAtlas.Key); IndexBuffer indexBuffer = chunk.GetBlockIndexBuffer(textureAtlas.Key); //if (chunk.DrawIndex == new Vector3i(0, 0, 0)) //{ //if (textureAtlas.Key == -1) //{ //var varray = new [] //{ //new VertexPositionTextureLight(new Vector3(0,68,0), new Vector2(0,1),1,new Vector3(0,0,0), new Vector3(1,1,1)), //new VertexPositionTextureLight(new Vector3(0,68,1), new Vector2(0,1),1,new Vector3(0,0,0), new Vector3(1,1,1)), //new VertexPositionTextureLight(new Vector3(1,68,0), new Vector2(0,1),1,new Vector3(0,0,0), new Vector3(1,1,1)) //}; //var iarray = new short[] {0, 1, 2}; //vertexBuffer = new VertexBuffer(_graphicsDevice, typeof(VertexPositionTextureLight), varray.Length, BufferUsage.WriteOnly); //indexBuffer = new IndexBuffer(_graphicsDevice, IndexElementSize.SixteenBits, iarray.Length, BufferUsage.WriteOnly); //vertexBuffer.SetData(varray); //indexBuffer.SetData(iarray); } } _graphicsDevice.SetVertexBuffer(vertexBuffer); _graphicsDevice.Indices = indexBuffer; _graphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, vertexBuffer.VertexCount, 0, indexBuffer.IndexCount / 3); } } } } } } } Noteworthy things about the code: XNA version is 4.0. I've commented the debugging code in the loop, but left it for it may bring some insight. I try not only to change vertices/indices in the loop, but textureAtlas also. Code in the shader about textureAtlas: Texture TextureAtlas; sampler TextureAtlasSampler = sampler_state { texture = <TextureAtlas>; magfilter = POINT; minfilter = POINT; mipfilter = POINT; AddressU = WRAP; AddressV = WRAP; }; struct VSInput { float4 Position : POSITION0; float2 TexCoords1 : TEXCOORD0; float SunLight : COLOR0; float3 LocalLight : COLOR1; float3 Normal : NORMAL0; }; VertexPositionTextureLight is my own realization of IVertexType. So, do anybody know about this problem, or see the wrongness in my code (that's far more likely)?

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  • How do I draw anti-aliased holes in a bitmap

    - by gyozo kudor
    I have an artillery game (hobby-learning project) and when the projectile hits it leaves a hole in the ground. I want this hole to have antialiased edges. I'm using System.Drawing for this. I've tried with clipping paths, and drawing with a transparent color using gfx.CompositingMode = CompositingMode.SourceCopy, but it gives me the same result. If I draw a circle with a solid color it works fine, but I need a hole, a circle with 0 alpha values. I have enabled these but they work only with solid colors: gfx.CompositingQuality = CompositingQuality.HighQuality; gfx.InterpolationMode = InterpolationMode.HighQualityBicubic; gfx.SmoothingMode = SmoothingMode.AntiAlias; In the two pictures consider black as being transparent. This is what I have (zoomed in): And what I need is something like this (made with photoshop): This will be just a visual effect, in code for collision detection I still treat everything with alpha 128 as solid. Edit: I'm usink OpenTK for this game. But for this question I think it doesn't really matter probably it is gdi+ related.

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  • How do I implement smooth movement in a Box2D platform game?

    - by Romeo
    I have implemented a character in JBox2D which moves with the help of a wheel rotating at the bottom of it. The movement is the best result I've had 'till now but it's a little glitchy when the character stands on the edge. So I am thinking should I use five smaller wheels instead of a big wheel. The wheel/wheels will not be visible in the finished product, now they are drawn for debugging. Here is a video. Is there a better way to do this using JBox2D?

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  • Initializing OpenFeint for Android outside the main Application

    - by Ef Es
    I am trying to create a generic C++ bridge to use OpenFeint with Cocos2d-x, which is supposed to be just "add and run" but I am finding problems. OpenFeint is very exquisite when initializing, it requires a Context parameter that MUST be the main Application, in the onCreate method, never the constructor. Also, the main Apps name must be edited into the manifest. I am trying to fix this. So far I have tried to create a new Application that calls my Application to test if just the type is needed, but you do really need the main Android application. I also tried using a handler for a static initialization but I found pretty much the same problem. Has anybody been able to do it? This is my working-but-not-as-intended code snippet public class DerpHurr extends Application{ @Override public void onCreate() { super.onCreate(); initializeOpenFeint("TestApp", "edthedthedthedth", "aeyaetyet", "65462"); } public void initializeOpenFeint(String appname, String key, String secret, String id){ Map<String, Object> options = new HashMap<String, Object>(); options.put(OpenFeintSettings.SettingCloudStorageCompressionStrategy, OpenFeintSettings.CloudStorageCompressionStrategyDefault); OpenFeintSettings settings = new OpenFeintSettings(appname, key, secret, id, options); //RIGHT HERE OpenFeint.initialize(***this***, settings, new OpenFeintDelegate() { }); System.out.println("OpenFeint Started"); } } Manifest <application android:debuggable="true" android:label="@string/app_name" android:name=".DerpHurr">

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  • Android Live Testing

    - by Matthew Dockerty
    I am making a game for android and in it I am using sensors which are not available in the emulator. At the moment I am connecting my device and transferring the apk, then installing to test but that is a pain to do, and I have gotten to the stage where I need to start logging values for debugging. I have gone into the run configs of my app and set it to prompt me to pick a device, but my device is never in the list when it is connected to my PC and I try to run it. How am I supposed to set it up to work properly? Thanks for the help.

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  • I need to move an entity to the mouse location after i rightclick

    - by I.Hristov
    Well I've read the related questions-answers but still cant find a way to move my champion to the mouse position after a right-button mouse-click. I use this code at the top: float speed = (float)1/3; And this is in my void Update: //check if right mouse button is clicked if (mouse.RightButton == ButtonState.Released && previousButtonState == ButtonState.Pressed) { // gets the position of the mouse in mousePosition mousePosition = new Vector2(mouse.X, mouse.Y); //gets the current position of champion (the drawRectangle) currentChampionPosition = new Vector2(drawRectangle.X, drawRectangle.Y); // move champion to mouse position: //handles the case when the mouse position is really close to current position if (Math.Abs(currentChampionPosition.X - mousePosition.X) <= speed && Math.Abs(currentChampionPosition.Y - mousePosition.Y) <= speed) { drawRectangle.X = (int)mousePosition.X; drawRectangle.Y = (int)mousePosition.Y; } else if (currentChampionPosition != mousePosition) { drawRectangle.X += (int)((mousePosition.X - currentChampionPosition.X) * speed); drawRectangle.Y += (int)((mousePosition.Y - currentChampionPosition.Y) * speed); } } previousButtonState = mouse.RightButton; What that code does at the moment is on a click it brings the sprite 1/3 of the distance to the mouse but only once. How do I make it move consistently all the time? It seems I am not updating the sprite at all. EDIT I added the Vector2 as Nick said and with speed changed to 50 it should be OK. I tried it with if ButtonState.Pressed and it works while pressing the button. Thanks. However I wanted it to start moving when single mouse clicked. It should be moving until reaches the mousePosition. The Edit of Nick's post says to create another Vector2, But I already have the one called mousePosition. Not sure how to use another one. //gets a Vector2 direction to move *by Nick Wilson Vector2 direction = mousePosition - currentChampionPosition; //make the direction vector a unit vector direction.Normalize(); //multiply with speed (number of pixels) direction *= speed; // move champion to mouse position if (currentChampionPosition != mousePosition) { drawRectangle.X += (int)(direction.X); drawRectangle.Y += (int)(direction.Y); } } previousButtonState = mouse.RightButton;

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  • Making large scale changes to an economy in a social game

    - by Zach
    Are there any examples or case studies of social games, specifically on Facebook, where the developer has made drastic changes to the economy? I'm specifically interested in examples where the old economy was based off of purchasing items with Facebook credits then moving to a new model where the same inventory or similar inventory is sold with a soft currency. The closest comparisons I've been able to find so far are looking at iOS games that have gone from purchase models to freemium models, but haven't found a comparable scenario in a social game besides larger scale MMO's.

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  • XNA Diffuse Shader Issue. Edge lighting problem. Image Attached

    - by adtither
    As you can see in this image the diffuse shading is working correctly in some places but in other places such as the the bottom of the sphere you can see the squares/triangles of the mesh. Any idea what would be causing this? Let me know if you need anymore information related to code. I can upload my normals calculations and shader effect if required. EDIT: Here's a link to the shader I'm using http://pastebin.com/gymVc7CP Link to normals calculations: http://pastebin.com/KnMGdzHP Seems to be an issue with edge lighting. Can't seem to see where I'm going wrong with the normals calculations though.

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  • Cocos2d/Cocos2d-x Attaching an arrow (sprite) to another body sprite (person)

    - by Satchmo Brown
    I am trying to set up a simple bow and arrow game. When the arrow hits the enemy body, the arrow's body is deleted and the arrow sprite continues to update, keeping the position correct in relation to the enemy it hit. Picture an arrow sticking into a body and that body still rotating and moving. My problem is that the rotation is completely wrong when the enemy rotates. I know how to do this in 3d with matrix transformation but I can't seem to figure it out in 2d with Cocos. Here is my method. I save offset at which the arrow hit the enemy. Every frame, I make the rotation of the sprite match the rotation of the enemy. Then, I apply the offset I took initially which is where the arrow hit the enemy. When they rotate, they rotate about their respective anchors and I am wondering if I need to set the anchor of the arrow to the center of the sprite. Does anyone know of an easy way to do this. If not, I will try to create an algorithm where the anchor is set to the offset divided by the width and height of the sprite image hopefully giving me the correct anchor values. Then I assume I need to reposition the sprite. Does anyone have a simpler way to do this?

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  • Permanent death in a MUD (think command line MMORPG)

    - by Luke Laupheimer
    I have considered writing a MUD for years, and I have a lot of ideas my friends think are really cool (and that's how I'd hope to get anywhere -- word of mouth). Thing is, there's one thing I have always wanted, that my friends and strangers hated: permanent death. Now, the emotional response I get to this is visceral revulsion, every time. I'm pretty sure I am the only person that wants this, or if I'm not, I'm a tiny minority. Now, the reason I want it is because I want the actions of the players to matter. Unlike a lot of other MUDs, which have a set of static city-states and social institutions etc, I want the things my players do, should I get any, to actually change the situation. And that includes killing people. If you kill someone, you didn't send them to time out, you killed them. What happens when you kill people? They go away. They don't come back in half an hour to smack talk you some more. They're gone. Forever. By making death non-permanent, you make death not matter. It would be similar if a climax to a character's arc is getting a speeding ticket. It cheapens it. Non-permanent death cheapens death. How can I: 1) Convince my players (and random people!) that this is actually a good idea?, or 2) Find some other way to make death and violence matter as much as it does in real life (except within the game, of course) sans character deletion? What alternatives are there out there?

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  • Handling early/late/dropped packets for interpolation in a 3D multiplayer game

    - by Ben Cracknell
    I'm working on a multiplayer game that for the purposes of this question, is most similar to Team Fortress. Each network data packet will contain the 3D position of the target moving object. (this object could be another player) The packets are sent on a fixed interval, and linear interpolation will be used to smooth the transition between packets. Under normal circumstances, interpolation will occur between the second-to-last packet, and the last packet received. The linear interpolation algorithm is the same as this post: Interpolating positions in a multiplayer game I have the same issue as in that post, but the answers don't seem like they will work in my situation. Consider the following scenario: Normal packet timing, everything is okay The next expected packet is late. That's okay, we'll just extrapolate based on previous positions The late packet eventually arrives with corrections to our extrapolation. Now what do we do with its information? The answers on the above post suggest we should just interpolate to this new packet's position, but that would not work at all. If we have already extrapolated past that point in time, moving back would cause rubber-banding. The issue is similar in the case of an early or dropped packet. So I believe what I am looking for is some way to smoothly deal with new information in an ongoing interpolation/extrapolation process. Since I might be moving on to quadratic or even cubic interpolation, it would be great if the same solutiuon could be applied to those as well.

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  • How does Minecraft renders its sunset and sky?

    - by Nick
    In Minecraft, the sunset looks really beautiful and I've always wanted to know how they do it. Do they use several skyboxes rendered over eachother? That is, one for the sky (which can turn dark and light depending on the time of the day), one for the sun and moon, and one for the orange horizon effect? I was hoping someone could enlighten me... I wish I could enter wireframe or something like that but as far as I know that is not possible.

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  • Handling different screen densities in Android Devices?

    - by DevilWithin
    Well, i know there are plenty of different-sized screens in devices that run Android. The SDK I code with deploys to all major desktop platforms and android. I am aware i must have special cares to handle the different screen sizes and densities, but i just had an idea that would work in theory, and my question is exactly about that method, How could it FAIL ? So, what I do is to have an ortho camera of the same size for all devices, with possible tweaks, but anyway that would grant the proper positioning of all elements in all devices, right? We can assume everything is drawn in OpenGLES and input handling is converted to the proper camera coordinates. If you need me to improve the question, please tell me.

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  • How to find the window size in XNA

    - by Nick Van Hoogenstyn
    I just wanted to know if there was a way to find out the size of the window in XNA. I don't want to set it to a specific size; I would like to know what dimensions it currently displays as automatically. Is there a way to find this information out? I realize I probably should have found this information out (or set it myself manually) before working on the game, but I'm a novice and am now hoping to work within the dimensions I have already become invested in. Thanks!

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  • Mandelbrot set not displaying properly

    - by brainydexter
    I am trying to render mandelbrot set using glsl. I'm not sure why its not rendering the correct shape. Does the mandelbrot calculation require values to be within a range for the (x,y) [ or (real, imag) ] ? Here is a screenshot: I render a quad as follows: float w2 = 6; float h2 = 5; glBegin(GL_QUADS); glVertex3f(-w2, h2, 0.0); glVertex3f(-w2, -h2, 0.0); glVertex3f(w2, -h2, 0.0); glVertex3f(w2, h2, 0.0); glEnd(); My vertex shader: varying vec3 Position; void main(void) { Position = gl_Vertex.xyz; gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex; } My fragment shader (where all the meat is): uniform float MAXITERATIONS; varying vec3 Position; void main (void) { float zoom = 1.0; float centerX = 0.0; float centerY = 0.0; float real = Position.x * zoom + centerX; float imag = Position.y * zoom + centerY; float r2 = 0.0; float iter; for(iter = 0.0; iter < MAXITERATIONS && r2 < 4.0; ++iter) { float tempreal = real; real = (tempreal * tempreal) + (imag * imag); imag = 2.0 * real * imag; r2 = (real * real) + (imag * imag); } vec3 color; if(r2 < 4.0) color = vec3(1.0); else color = vec3( iter / MAXITERATIONS ); gl_FragColor = vec4(color, 1.0); }

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  • Game engines and monetization of indie games

    - by Extrakun
    Does the game engine you use affect monetization of indie games? Of course, targeting difficult platforms is one of the issues. Besides that, how would the game engine used impact monetization of games, assuming cases where the developers is going through a portal and handling the online distribution themselves? As an example, if I make a game in DarkBASIC, will it be harder to sell it than one made with Popcaps Framework or ClanLib etc.?

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  • Hardware instancing for voxel engine

    - by Menno Gouw
    i just did the tutorial on Hardware Instancing from this source: http://www.float4x4.net/index.php/2011/07/hardware-instancing-for-pc-in-xna-4-with-textures/. Somewhere between 900.000 and 1.000.000 draw calls for the cube i get this error "XNA Framework HiDef profile supports a maximum VertexBuffer size of 67108863." while still running smoothly on 900k. That is slightly less then 100x100x100 which are a exactly a million. Now i have seen voxel engines with very "tiny" voxels, you easily get to 1.000.000 cubes in view with rough terrain and a decent far plane. Obviously i can optimize a lot in the geometry buffer method, like rendering only visible faces of a cube or using larger faces covering multiple cubes if the area is flat. But is a vertex buffer of roughly 67mb the max i can work with or can i create multiple?

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  • creating a pre-menu level select screen

    - by Ephiras
    Hi I am working on creating a tower Defence java applet game and have come to a road block about implementing a title screen that i can select the level and difficulty of the rest of the game. my title screen class is called Menu. from this menu class i need to pass in many different variables into my Main class. i have used different classes before and know how to run them and such. but if both classes extend applet and each has its individual graphics method how can i run things from Main even though it was created in Menu. what i essentially want to do is run the Menu class withits action listeners and graphics until a Difficulty button has been selected, run the main class (which 100% works without having to have the Menu class) and pretty much terminate Menu so that i cannot go back to it, do not see its buttons or graphics menus. can i run one applet annd when i choose a button close that one and launch the other one? IF you would like to download the full project you can find it here, i had to comment out all the code that wasn't working my Menu class import java.awt.*; import java.awt.event.*; import java.applet.*; public class Menu extends Applet implements ActionListener{ Button bEasy,bMed,bHard; Main m; public void init(){ bEasy= new Button("Easy"); bEasy.setBounds(140,200,100,50); add(bEasy); bMed = new Button("Medium");bMed.setBounds(280,200,100,50); add(bMed); bHard= new Button("Hard");bHard.setBounds(420,200,100,50); add(bHard); setLayout(null); } public void actionPerformed(ActionEvent e){ Main m = new Main(20,10,3000,mapMed);//break; switch (e.getSource()){ case bEasy: Main m = new Main(6000,20,"levels/levelEasy.png");break;//enimies tower money world case bMed: Main m = new Main(4000,15,"levels/levelMed.png");break; case bHard: Main m = new Main(2000,10,"levels/levelEasy.png");break; default: break; } } public void paint(){ //m.draw(g) } } and here is my main class initialising code. import java.awt.*; import java.awt.event.*; import java.applet.*; import java.io.IOException; public class Main extends Applet implements Runnable, MouseListener, MouseMotionListener, ActionListener{ Button startButton, UpgRange, UpgDamage; //set up the buttons Color roadCol,startCol,finCol,selGrass,selRoad; //set up the colors Enemy e[][]; Tower t[]; Image towerpic,backpic,roadpic,levelPic; private Image i; private Graphics doubleG; //here is the world 0=grass 1=road 2=start 3=end int world[][],eStartX,eStartY; boolean drawMouse,gameEnd; static boolean start=false; static int gridLength=15; static int round=0; int Mx,My,timer=1500; static int sqrSize=31; int towers=0,towerSelected=-10; static int castleHealth=2000; String levelPath; //choose the level Easy Med or Hard int maxEnemy[] = {5,7,12,20,30,15,50,30,40,60};//number of enimies per round int maxTowers=15;//maximum number of towers allowed static int money =2000,damPrice=600,ranPrice=350,towerPrice=700; //money = the intial ammount of money you start of with //damPrice is the price to increase the damage of a tower //ranPrice is the price to increase the range of a tower public void main(int cH,int mT,int mo,int dP,int rP,int tP,String path,int[] mE)//constructor 1 castleHealth=cH; maxTowers=mT; money=mo; damPrice=dP; ranPrice=rP; towerPrice=tP; String levelPath=path; maxEnemy = mE; buildLevel(); } public void main(int cH,int mT,String path)//basic constructor castleHealth=cH; maxTowers=mT; String levelPath=path; maxEnemy = mE; buildLevel(); } public void init(){ setSize(sqrSize*15+200,sqrSize*15);//set the size of the screen roadCol = new Color(255,216,0);//set the colors for the different objects startCol = new Color(0,38,255); finCol = new Color(255,0,0); selRoad = new Color(242,204,155);//selColor is the color of something when your mouse hovers over it selGrass = new Color(0,190,0); roadpic = getImage(getDocumentBase(),"images/road.jpg"); towerpic = getImage(getDocumentBase(),"images/tower.png"); backpic = getImage(getDocumentBase(),"images/grass.jpg"); levelPic = getImage(getDocumentBase(),"images/level.jpg"); e= new Enemy[maxEnemy.length][];//activates all of the enimies for (int r=0;r<e.length;r++) e[r] = new Enemy[maxEnemy[r]]; t= new Tower[maxTowers]; for (int i=0;i<t.length;i++) t[i]= new Tower();//activates all the towers for (int i=0;i<e.length; i++)//sets all of the enimies starting co ordinates for (int j=0;j<e[i].length;j++) e[i][j] = new Enemy(eStartX,eStartY,world); initButtons();//initialise all the buttons addMouseMotionListener(this); addMouseListener(this); }

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  • Gap in parallaxing background loop

    - by CinetiK
    The bug here is that my background kind of offset a bit itself from where it should draw and so I have this line. I have some troubles understanding why I get this bug when I set a speed that is different then 1,2,4,8,16,... In main class I set the speed depending on the player speed bgSpeed = -(int)playerMoveSpeed.X / 10; and here's my background class class ParallaxingBackground { Texture2D texture; Vector2[] positions; public int Speed { get; set;} public void Initialize(ContentManager content, String texturePath, int screenWidth, int speed) { texture = content.Load<Texture2D>(texturePath); this.Speed = speed; positions = new Vector2[screenWidth / texture.Width + 2]; for (int i = 0; i < positions.Length; i++) { positions[i] = new Vector2(i * texture.Width, 0); } } public void Update() { for (int i = 0; i < positions.Length; i++) { positions[i].X += Speed; if (Speed <= 0) { if (positions[i].X <= -texture.Width) { positions[i].X = texture.Width * (positions.Length - 1); } } else { if (positions[i].X >= texture.Width*(positions.Length - 1)) { positions[i].X = -texture.Width; } } } } public void Draw(SpriteBatch spriteBatch) { for (int i = 0; i < positions.Length; i++) { spriteBatch.Draw(texture, positions[i], Color.White); } } }

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  • OpenGL ES 2.0 example for JOGL

    - by fjdutoit
    I've scoured the internet for the last few hours looking for an example of how to run even the most basic OpenGL ES 2 example using JOGL but "by Jupiter!" it has been a total fail. I tried converting the android example from the OpenGL ES 2.0 Programming Guide examples (and at the same time looking at the WebGL example -- which worked fine) yet without any success. Are there any examples out there? If anyone else wants some extra help regarding this question see this thread on the official Jogamp forum.

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  • Problem with DirectX scene-graph

    - by Alex
    I'm trying to implement a basic scene graph in DirectX using C++. I am using a left child-right sibling binary tree to do this. I'm having trouble updating each node's world transformation relative to its parent (and its parent's parent etc.). I'm struggling to get it to work recursively, though I can get it to work like this: for(int i = 0; i < NUM_OBJECTS; i++) { // Initialize to identity matrix. D3DXMatrixIdentity(&mObject[i].toWorldXForm); int k = i; while( k != -1 ) { mObject[i].toWorldXForm *= mObject[k].toParentXForm; k = mObject[k].parent; } } toWorldXForm is the object's world transform and toParentXForm is the object's transform relative to the parent. I want to do this using a method within my object class (the code above is in my main class). This is what I've tried but it doesn't work (only works with nodes 1 generation away from the root) if (this->sibling != NULL) this->sibling->update(toParentXForm); D3DXMatrixIdentity(&toWorldXForm); this->toWorldXForm *= this->toParentXForm; this->toWorldXForm *= toParentXForm; toParentXForm *= this->toParentXForm; if (this->child != NULL) this->child->update(toParentXForm); Sorry if I've not been clear, please tell me if there's anything else you need to know. I've no doubt it's merely a silly mistake on my part, hopefully an outside view will be able to spot the problem.

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  • What's the most efficient way to find barycentric coordinates?

    - by bobobobo
    In my profiler, finding barycentric coordinates is apparently somewhat of a bottleneck. I am looking to make it more efficient. It follows the method in shirley, where you compute the area of the triangles formed by embedding the point P inside the triangle. Code: Vector Triangle::getBarycentricCoordinatesAt( const Vector & P ) const { Vector bary ; // The area of a triangle is real areaABC = DOT( normal, CROSS( (b - a), (c - a) ) ) ; real areaPBC = DOT( normal, CROSS( (b - P), (c - P) ) ) ; real areaPCA = DOT( normal, CROSS( (c - P), (a - P) ) ) ; bary.x = areaPBC / areaABC ; // alpha bary.y = areaPCA / areaABC ; // beta bary.z = 1.0f - bary.x - bary.y ; // gamma return bary ; } This method works, but I'm looking for a more efficient one!

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  • Develop 3d game for iphone & android in single code

    - by lajpat
    I have to make a 3d game on the lines of this app 3D Chess I want to make this app for both android & iphone by writing a single code. Of course little native code will be required to be done. I want to ensure that entire logic & animation code is written only once. What software does one suggest to achieve this since I am not a tight schedule. I came across Corona but I am not sure if such game can be made using it. Others I found Unity & Shiva. I am not experience in 3D game so please if someone can help Thanks Lajpat

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