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  • trouble with internet connection - slow to open web pages if they open at all until I put VPN on and then they open ok

    - by Caroline Coleman
    I am having problems with my internet connection. At the moment I am on a mac and connected through a netgear wireless router. The internet connection either won't open a webpage at all or if it does it takes ages. However if I turn my VPN on the pages open at a normal speed. Also skype functions OK and I seem to be able to download files ok. I have tried connecting with a wire between the router and the computer and it makes no difference.

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  • How do I trouble shoot a program which regularlly falls into a not responding state?

    - by Dave
    Lately I've been using Visual Studio 2008 and about once a day, sometimes more it will lock up. What advanced techniques can I use to determine what is causing the problem? I believe that it's one of the plug-ins I'm using *cough*Resharper*cough* but I'd like to be sure. I've been losing work and I'd like to file a bug report somewhere but I'm not seeing anything in any of my event logs which looks suspect to me. Working on a Windows XP box.

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  • Having trouble with a workaround, for booting from a usb stick, using grub and a minimal linux kernel to load usb drivers

    - by s hanley
    I'm trying to boot from a usb stick. I formatted it to fat32, and later to ext2, and installed dsl on it using unetbootin, and later the usb install guide on dsl wiki (http://www.damnsmalllinux.org/wiki/index.php/Install_to_USB_From_within_Linux). The bios doesn't have a setting for booting from usb. Grub doesn't "see" the usb drive when I use the root and find commands, explained in (http://www.damnsmalllinux.org/wiki/index.php/USB_Booting). This happens even when I set boot from floppy at the top of the boot order. However, my usb keyboard is recognised by the bios and by grub. How can it recognise the keyboard but not the usb drive? Also, the usb led does flash even before grub starts up, so surely something must be happening usb-wise? I am now following an ubuntu guide to booting from a USB stick, using a hdd-based, minimal linux kernel to supply the usb drivers. But I'm having difficulty adapting it to other OSes (slax/dsl/aptosid). I believe I have to alter the initrd.gz file to include usb drivers and then copy that file along with vmlinuz to a partition on my hdd. But, what's the grub command for the kernel line supposed to look like? From the ubuntu example it's: title USB FLASH DRIVE root (hd0,6) kernel /boot/usb-boot/vmlinuz file=/cdrom/preseed/ubuntu.seed boot=casper noprompt cdrom-detect/try-usb=true persistent initrd /boot/usb-boot/initrd.lz boot Should mine just be: title USB FLASH DRIVE root (hd0,6) kernel /boot/usb-boot/vmlinuz cdrom-detect/try-usb=true initrd /boot/usb-boot/initrd.lz boot

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  • I need to preserve a tape using symantec backup exec. I'm aving trouble doing so

    - by MrVimes
    Please forgive me if this is the wrong stack exchange site. Please suggest which one I should post this to if it is. There's an automatic tape machine running in a remote location, with software (symantec backup exec 11d) Recently one of the servers being backed up had problems with its raid controller, so one of the drives has become invisible. I need to preserve the last good backup of that drive so I am trying to replace the tape with the most recent backup of that drive on it with one of the scratch tapes (blank tapes) present in the machine. I've tried the following... Associate the blank media with the media set in question (Wednesday) For the existing media (the tape with the data I want to keep) I click 'move to vault' and move it to the offline vault. I associate it with something other than 'Wednesday' (a media set called 'keep data infinitely...') I then do an inventory on that slot. The above steps I'm led to believe are supposed to put the fresh tape in the slot that had the tape I want to keep in it. But it just keeps showing up as containing the tape I want to keep after the inventory. (after refreshing the device tree) I am a complete newbie with this software. Can you tell me what I'm doing wrong, and/or tell me how to acheive my desired goal Edit: Just want to point out that I did try to get help directly from symantec with this, but having jumped through countless hoops to create an account and create a support ticket my progress was halted by requiring something called a 'tecnical contact id' at the final step with no explanation of what it is or how to get one.

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  • trouble when shutdown or restart in windows xp getting a black screen asking to try and start windows normally or safe mode than it runs a chk disk

    - by Brenda D Thomas
    I recently reinstalled windows xp on my dell latitude d410 laptop, everything works fine as long as I don't shut down, when I do, I get a black screen with a list of choices, it gives me the option of trying to start windows normally or different safe modes, than a blue screen comes up and runs a check disk, it even ask me to pick a restore point the last time, which I did, I'm afraid to turn the computer off or restart it, what could be wrong?

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  • Trouble with Remote Desktop pulling through printers. Drive Redirection works, and the ports created but not the printers

    - by Windex
    I've run out of things to look into. All the support documents have been gone through and still provide no resolution. I've checked the service permissions, (sc sdshow spooler) they all match up with other systems and what is output on the support documents. I'm nearly positive that the issue can't be permissions anyway as the software requires all users to be an administrator, so all users are a local administrator. (I haven't looked into why yet but its on the list, I was just recently brought into this team and we've put procedures in place for quick recovery.) We've applied hot fixes relating to RDS and printing, though I'm not sure which ones they were. I've combed through group policy and no where is printer redirection disabled. It's setup with all default values regarding the use and redirection of printers and a quick install of W2k8 R2 shows that it works by default. This dev install was joined to the same domain, placed in the same OU, shows the same policies applied, etc, etc, etc, The server generates all the correct redirected ports but no printers are created. It will also redirect drives without issue, this would seem to rule out the usermode service that handles redirects being broken. No events are logged related to any of the events and there are no events from the TerminalServices-Printer source. There were local printers setup. I didn't think it would mattter but as I was running out of ideas I tried deleting them all with no change. The TS was configured for the software it will be running before we checked out the redirection of printers so the other team responsible to setting up new servers wants to find a fix instead of reloading a new server. I'm not sure where or what else to look for. Any ideas?

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  • Why am I having trouble loading Ubuntu alongside Windows as an application?

    - by STEVE PEAVEY
    I have two good CD ISO files. Both load OK, but when I boot to Ubuntu the screen is fragmented by dozens of white lines. Program works but is useless. I'm running Windows XP SP3 on D201GLY MB, CELERON CPU 220 1.02 GHZ, 512 RAM What could be my problem? CPU? Not enough RAM? Or maybe even the graphics card? to be clearer i am trying to load either ubuntu 8.04 or 9.04 inside windows as an aplication from known GOOD cd's. trying to load with the wubi installer that is loaded on the cd's. sis mirage graphics 32mb vid prosser sis 662.

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  • Do 7.2k SATA drives and a hardware raid controller always end with trouble?

    - by xelco52
    I'm reading the FreeNAS userguide and came across the statement: Note that hardware RAID configured as JBOD may still detach disks that do not respond in time; and as such may require TLER/CCTL/ERC-enabled disks to prevent drive dropouts. I'm using a '3Ware 9550SX-8LP RAID Controller' and see quite a few stories of people successfully running raid5 on 7.2k consumer SATA drives without issue. Are detached disks only a theoretical problem, or should I expect this to be a common occurrence?

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  • Having trouble searching for a ‘.’ using htaccess.

    - by ThisLanham
    I'm setting up a website that (ideally) would allow users to access other users' homepages with a url in the format "www.mysite.com/ThisLanham" where 'ThisLanham' is the username. The username begins with a letter and can consists of any alphanumeric character along with an underscore, hyphen, or period. So far, the redirection has worked perfectly when I ignore usage of the period character. The following code handles that request: RewriteRule ^([a-zA-Z][0-9a-zA-Z-_]*)/?$ Page/?un=$1 [NC,L] However, I've tried a number of ways it check for the period as well, but all have resulted in a 500 Internal Server Error. Here are some my attempts: RewriteRule ^([a-zA-Z][0-9a-zA-Z-\_\\.]\*)/?$ Page/?un=$1 [NC,L] RewriteRule ^([0-9a-zA-Z-\_\\.]\*)/?$ Page/?un=$1 [NC,L] RewriteRule ^([a-zA-Z].\*)/?$ Page/?un=$1 [NC,L] RewriteRule ^(.\*)/?$ Page/?un=$1 [NC,L] also tried... RewriteCond $1 != index.php RewriteRule ^([a-z][0-9a-z-_.]*)/?$ Page/?un=$1 [NC,L] My backup plan is to no longer allow users to include periods in their usernames, but I'd much rather find a solution. Any ideas?

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  • Why am I having trouble viewing HTTPS websites only using Chrome only on my employer's network?

    - by user1742777
    I'm using Google Chrome on my new MacBook Pro that has been provided to me by my employer. Many of the HTTPS sites I visit do not work when I visit them using Google Crome while I am connected to my employer's network. Example: www.facebook.com These same sites work perfectly fine if I use a different browser (like Safari) or even with Chrome when my Macbook is connected to my home WiFi network. Chrome reports the error: "The certificate was signed by an unknown authority". See attached screenshots. How can I resolve this problem? I really want to use Chrome. But not having access to numerous important work and outside websites is unacceptable.

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  • jQuery setTimeout delay for an element

    - by Trouble
    Is there an easier way to wait for an element to load ( by independant script/mootools/other ). For example: I am waiting for a google map to load, but I don't want to use its API for checks. So I made two functions: function checkIfexist() { if(jQuery('#container').length) return 0; else reload(1); } function reload(mode) { setTimeout(function(){ do stuff . . . if(mode==1) checkIfexist(); }, 400); } I am starting it with reload(1); Is there an easier way to use setTimeout in such a way? I don't want to use delay, wait or whatever.

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  • I'm having trouble getting my server to appear online.

    - by JMRboosties
    Total newb question I'm sure. First I had installed WAMP (http://www.wampserver.com), and I was able to access my pages from other computers in my router network, and the virtual device used to debug Android programs (the purpose of my having a server). This functionality failed, however, at some point over these past few days. While my own browser displays the pages just fine, other computers, my Android phone (on our room's wifi), and my virtual device are no longer able to connect to my pages. I had not made any changes in the settings. I uninstalled WAMP and installed EasyPHP. However, the problem was not resolved. I know this is rather vague, but does anyone here have an idea of what may have happened? I forwarded both port 80 (I know its the default HTTP port, I did it just to be safe), and now port 8888 which EasyPHP uses. I turned my firewall on my hosting computer off for good measure. I cannot access my pages from neither remote computers or computers using my router. Any ideas you may have on how to resolve this would be awesome, thanks a lot. And if you need anymore info please tell me.

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  • Archery game programming algorithm

    - by Ricky
    I need the algorithm to animate the arrow based on 2 parameters, angle while shooting and power while drawing the bow. Ive tried to use y=asinx but it works only when shooting in up direction. Doesnt work well while shooting with straight or down direction. Thanks.

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  • OpenGL 3.x Assimp trouble implementing phong shading (normals?)

    - by Defcronyke
    I'm having trouble getting phong shading to look right. I'm pretty sure there's something wrong with either my OpenGL calls, or the way I'm loading my normals, but I guess it could be something else since 3D graphics and Assimp are both still very new to me. When trying to load .obj/.mtl files, the problems I'm seeing are: The models seem to be lit too intensely (less phong-style and more completely washed out, too bright). Faces that are lit seem to be lit equally all over (with the exception of a specular highlight showing only when the light source position is moved to be practically right on top of the model) Because of problems 1 and 2, spheres look very wrong: picture of sphere And things with larger faces look (less-noticeably) wrong too: picture of cube I could be wrong, but to me this doesn't look like proper phong shading. Here's the code that I think might be relevant (I can post more if necessary): file: assimpRenderer.cpp #include "assimpRenderer.hpp" namespace def { assimpRenderer::assimpRenderer(std::string modelFilename, float modelScale) { initSFML(); initOpenGL(); if (assImport(modelFilename)) // if modelFile loaded successfully { initScene(); mainLoop(modelScale); shutdownScene(); } shutdownOpenGL(); shutdownSFML(); } assimpRenderer::~assimpRenderer() { } void assimpRenderer::initSFML() { windowWidth = 800; windowHeight = 600; settings.majorVersion = 3; settings.minorVersion = 3; app = NULL; shader = NULL; app = new sf::Window(sf::VideoMode(windowWidth,windowHeight,32), "OpenGL 3.x Window", sf::Style::Default, settings); app->setFramerateLimit(240); app->setActive(); return; } void assimpRenderer::shutdownSFML() { delete app; return; } void assimpRenderer::initOpenGL() { GLenum err = glewInit(); if (GLEW_OK != err) { /* Problem: glewInit failed, something is seriously wrong. */ std::cerr << "Error: " << glewGetErrorString(err) << std::endl; } // check the OpenGL context version that's currently in use int glVersion[2] = {-1, -1}; glGetIntegerv(GL_MAJOR_VERSION, &glVersion[0]); // get the OpenGL Major version glGetIntegerv(GL_MINOR_VERSION, &glVersion[1]); // get the OpenGL Minor version std::cout << "Using OpenGL Version: " << glVersion[0] << "." << glVersion[1] << std::endl; return; } void assimpRenderer::shutdownOpenGL() { return; } void assimpRenderer::initScene() { // allocate heap space for VAOs, VBOs, and IBOs vaoID = new GLuint[scene->mNumMeshes]; vboID = new GLuint[scene->mNumMeshes*2]; iboID = new GLuint[scene->mNumMeshes]; glClearColor(0.4f, 0.6f, 0.9f, 0.0f); glEnable(GL_DEPTH_TEST); glDepthFunc(GL_LEQUAL); glEnable(GL_CULL_FACE); shader = new Shader("shader.vert", "shader.frag"); projectionMatrix = glm::perspective(60.0f, (float)windowWidth / (float)windowHeight, 0.1f, 100.0f); rot = 0.0f; rotSpeed = 50.0f; faceIndex = 0; colorArrayA = NULL; colorArrayD = NULL; colorArrayS = NULL; normalArray = NULL; genVAOs(); return; } void assimpRenderer::shutdownScene() { delete [] iboID; delete [] vboID; delete [] vaoID; delete shader; } void assimpRenderer::renderScene(float modelScale) { sf::Time elapsedTime = clock.getElapsedTime(); clock.restart(); if (rot > 360.0f) rot = 0.0f; rot += rotSpeed * elapsedTime.asSeconds(); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); viewMatrix = glm::translate(glm::mat4(1.0f), glm::vec3(0.0f, -3.0f, -10.0f)); // move back a bit modelMatrix = glm::scale(glm::mat4(1.0f), glm::vec3(modelScale)); // scale model modelMatrix = glm::rotate(modelMatrix, rot, glm::vec3(0, 1, 0)); //modelMatrix = glm::rotate(modelMatrix, 25.0f, glm::vec3(0, 1, 0)); glm::vec3 lightPosition( 0.0f, -100.0f, 0.0f ); float lightPositionArray[3]; lightPositionArray[0] = lightPosition[0]; lightPositionArray[1] = lightPosition[1]; lightPositionArray[2] = lightPosition[2]; shader->bind(); int projectionMatrixLocation = glGetUniformLocation(shader->id(), "projectionMatrix"); int viewMatrixLocation = glGetUniformLocation(shader->id(), "viewMatrix"); int modelMatrixLocation = glGetUniformLocation(shader->id(), "modelMatrix"); int ambientLocation = glGetUniformLocation(shader->id(), "ambientColor"); int diffuseLocation = glGetUniformLocation(shader->id(), "diffuseColor"); int specularLocation = glGetUniformLocation(shader->id(), "specularColor"); int lightPositionLocation = glGetUniformLocation(shader->id(), "lightPosition"); int normalMatrixLocation = glGetUniformLocation(shader->id(), "normalMatrix"); glUniformMatrix4fv(projectionMatrixLocation, 1, GL_FALSE, &projectionMatrix[0][0]); glUniformMatrix4fv(viewMatrixLocation, 1, GL_FALSE, &viewMatrix[0][0]); glUniformMatrix4fv(modelMatrixLocation, 1, GL_FALSE, &modelMatrix[0][0]); glUniform3fv(lightPositionLocation, 1, lightPositionArray); for (unsigned int i = 0; i < scene->mNumMeshes; i++) { colorArrayA = new float[3]; colorArrayD = new float[3]; colorArrayS = new float[3]; material = scene->mMaterials[scene->mNumMaterials-1]; normalArray = new float[scene->mMeshes[i]->mNumVertices * 3]; unsigned int normalIndex = 0; for (unsigned int j = 0; j < scene->mMeshes[i]->mNumVertices * 3; j+=3, normalIndex++) { normalArray[j] = scene->mMeshes[i]->mNormals[normalIndex].x; // x normalArray[j+1] = scene->mMeshes[i]->mNormals[normalIndex].y; // y normalArray[j+2] = scene->mMeshes[i]->mNormals[normalIndex].z; // z } normalIndex = 0; glUniformMatrix3fv(normalMatrixLocation, 1, GL_FALSE, normalArray); aiColor3D ambient(0.0f, 0.0f, 0.0f); material->Get(AI_MATKEY_COLOR_AMBIENT, ambient); aiColor3D diffuse(0.0f, 0.0f, 0.0f); material->Get(AI_MATKEY_COLOR_DIFFUSE, diffuse); aiColor3D specular(0.0f, 0.0f, 0.0f); material->Get(AI_MATKEY_COLOR_SPECULAR, specular); colorArrayA[0] = ambient.r; colorArrayA[1] = ambient.g; colorArrayA[2] = ambient.b; colorArrayD[0] = diffuse.r; colorArrayD[1] = diffuse.g; colorArrayD[2] = diffuse.b; colorArrayS[0] = specular.r; colorArrayS[1] = specular.g; colorArrayS[2] = specular.b; // bind color for each mesh glUniform3fv(ambientLocation, 1, colorArrayA); glUniform3fv(diffuseLocation, 1, colorArrayD); glUniform3fv(specularLocation, 1, colorArrayS); // render all meshes glBindVertexArray(vaoID[i]); // bind our VAO glDrawElements(GL_TRIANGLES, scene->mMeshes[i]->mNumFaces*3, GL_UNSIGNED_INT, 0); glBindVertexArray(0); // unbind our VAO delete [] normalArray; delete [] colorArrayA; delete [] colorArrayD; delete [] colorArrayS; } shader->unbind(); app->display(); return; } void assimpRenderer::handleEvents() { sf::Event event; while (app->pollEvent(event)) { if (event.type == sf::Event::Closed) { app->close(); } if ((event.type == sf::Event::KeyPressed) && (event.key.code == sf::Keyboard::Escape)) { app->close(); } if (event.type == sf::Event::Resized) { glViewport(0, 0, event.size.width, event.size.height); } } return; } void assimpRenderer::mainLoop(float modelScale) { while (app->isOpen()) { renderScene(modelScale); handleEvents(); } } bool assimpRenderer::assImport(const std::string& pFile) { // read the file with some example postprocessing scene = importer.ReadFile(pFile, aiProcess_CalcTangentSpace | aiProcess_Triangulate | aiProcess_JoinIdenticalVertices | aiProcess_SortByPType); // if the import failed, report it if (!scene) { std::cerr << "Error: " << importer.GetErrorString() << std::endl; return false; } return true; } void assimpRenderer::genVAOs() { int vboIndex = 0; for (unsigned int i = 0; i < scene->mNumMeshes; i++, vboIndex+=2) { mesh = scene->mMeshes[i]; indexArray = new unsigned int[mesh->mNumFaces * sizeof(unsigned int) * 3]; // convert assimp faces format to array faceIndex = 0; for (unsigned int t = 0; t < mesh->mNumFaces; ++t) { const struct aiFace* face = &mesh->mFaces[t]; std::memcpy(&indexArray[faceIndex], face->mIndices, sizeof(float) * 3); faceIndex += 3; } // generate VAO glGenVertexArrays(1, &vaoID[i]); glBindVertexArray(vaoID[i]); // generate IBO for faces glGenBuffers(1, &iboID[i]); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, iboID[i]); glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(GLuint) * mesh->mNumFaces * 3, indexArray, GL_STATIC_DRAW); // generate VBO for vertices if (mesh->HasPositions()) { glGenBuffers(1, &vboID[vboIndex]); glBindBuffer(GL_ARRAY_BUFFER, vboID[vboIndex]); glBufferData(GL_ARRAY_BUFFER, mesh->mNumVertices * sizeof(GLfloat) * 3, mesh->mVertices, GL_STATIC_DRAW); glEnableVertexAttribArray((GLuint)0); glVertexAttribPointer((GLuint)0, 3, GL_FLOAT, GL_FALSE, 0, 0); } // generate VBO for normals if (mesh->HasNormals()) { normalArray = new float[scene->mMeshes[i]->mNumVertices * 3]; unsigned int normalIndex = 0; for (unsigned int j = 0; j < scene->mMeshes[i]->mNumVertices * 3; j+=3, normalIndex++) { normalArray[j] = scene->mMeshes[i]->mNormals[normalIndex].x; // x normalArray[j+1] = scene->mMeshes[i]->mNormals[normalIndex].y; // y normalArray[j+2] = scene->mMeshes[i]->mNormals[normalIndex].z; // z } normalIndex = 0; glGenBuffers(1, &vboID[vboIndex+1]); glBindBuffer(GL_ARRAY_BUFFER, vboID[vboIndex+1]); glBufferData(GL_ARRAY_BUFFER, mesh->mNumVertices * sizeof(GLfloat) * 3, normalArray, GL_STATIC_DRAW); glEnableVertexAttribArray((GLuint)1); glVertexAttribPointer((GLuint)1, 3, GL_FLOAT, GL_FALSE, 0, 0); delete [] normalArray; } // tex coord stuff goes here // unbind buffers glBindVertexArray(0); glBindBuffer(GL_ARRAY_BUFFER, 0); glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); delete [] indexArray; } vboIndex = 0; return; } } file: shader.vert #version 150 core in vec3 in_Position; in vec3 in_Normal; uniform mat4 projectionMatrix; uniform mat4 viewMatrix; uniform mat4 modelMatrix; uniform vec3 lightPosition; uniform mat3 normalMatrix; smooth out vec3 vVaryingNormal; smooth out vec3 vVaryingLightDir; void main() { // derive MVP and MV matrices mat4 modelViewProjectionMatrix = projectionMatrix * viewMatrix * modelMatrix; mat4 modelViewMatrix = viewMatrix * modelMatrix; // get surface normal in eye coordinates vVaryingNormal = normalMatrix * in_Normal; // get vertex position in eye coordinates vec4 vPosition4 = modelViewMatrix * vec4(in_Position, 1.0); vec3 vPosition3 = vPosition4.xyz / vPosition4.w; // get vector to light source vVaryingLightDir = normalize(lightPosition - vPosition3); // Set the position of the current vertex gl_Position = modelViewProjectionMatrix * vec4(in_Position, 1.0); } file: shader.frag #version 150 core out vec4 out_Color; uniform vec3 ambientColor; uniform vec3 diffuseColor; uniform vec3 specularColor; smooth in vec3 vVaryingNormal; smooth in vec3 vVaryingLightDir; void main() { // dot product gives us diffuse intensity float diff = max(0.0, dot(normalize(vVaryingNormal), normalize(vVaryingLightDir))); // multiply intensity by diffuse color, force alpha to 1.0 out_Color = vec4(diff * diffuseColor, 1.0); // add in ambient light out_Color += vec4(ambientColor, 1.0); // specular light vec3 vReflection = normalize(reflect(-normalize(vVaryingLightDir), normalize(vVaryingNormal))); float spec = max(0.0, dot(normalize(vVaryingNormal), vReflection)); if (diff != 0) { float fSpec = pow(spec, 128.0); // Set the output color of our current pixel out_Color.rgb += vec3(fSpec, fSpec, fSpec); } } I know it's a lot to look through, but I'm putting most of the code up so as not to assume where the problem is. Thanks in advance to anyone who has some time to help me pinpoint the problem(s)! I've been trying to sort it out for two days now and I'm not getting anywhere on my own.

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  • Java collision detection and player movement: tips

    - by Loris
    I have read a short guide for game develompent (java, without external libraries). I'm facing with collision detection and player (and bullets) movements. Now i put the code. Most of it is taken from the guide (should i link this guide?). I'm just trying to expand and complete it. This is the class that take care of updates movements and firing mechanism (and collision detection): public class ArenaController { private Arena arena; /** selected cell for movement */ private float targetX, targetY; /** true if droid is moving */ private boolean moving = false; /** true if droid is shooting to enemy */ private boolean shooting = false; private DroidController droidController; public ArenaController(Arena arena) { this.arena = arena; this.droidController = new DroidController(arena); } public void update(float delta) { Droid droid = arena.getDroid(); //droid movements if (moving) { droidController.moveDroid(delta, targetX, targetY); //check if arrived if (droid.getX() == targetX && droid.getY() == targetY) moving = false; } //firing mechanism if(shooting) { //stop shot if there aren't bullets if(arena.getBullets().isEmpty()) { shooting = false; } for(int i = 0; i < arena.getBullets().size(); i++) { //current bullet Bullet bullet = arena.getBullets().get(i); System.out.println(bullet.getBounds()); //angle calculation double angle = Math.atan2(bullet.getEnemyY() - bullet.getY(), bullet.getEnemyX() - bullet.getX()); //increments x and y bullet.setX((float) (bullet.getX() + (Math.cos(angle) * bullet.getSpeed() * delta))); bullet.setY((float) (bullet.getY() + (Math.sin(angle) * bullet.getSpeed() * delta))); //collision with obstacles for(int j = 0; j < arena.getObstacles().size(); j++) { Obstacle obs = arena.getObstacles().get(j); if(bullet.getBounds().intersects(obs.getBounds())) { System.out.println("Collision detect!"); arena.removeBullet(bullet); } } //collisions with enemies for(int j = 0; j < arena.getEnemies().size(); j++) { Enemy ene = arena.getEnemies().get(j); if(bullet.getBounds().intersects(ene.getBounds())) { System.out.println("Collision detect!"); arena.removeBullet(bullet); } } } } } public boolean onClick(int x, int y) { //click on empty cell if(arena.getGrid()[(int)(y / Arena.TILE)][(int)(x / Arena.TILE)] == null) { //coordinates targetX = x / Arena.TILE; targetY = y / Arena.TILE; //enables movement moving = true; return true; } //click on enemy: fire if(arena.getGrid()[(int)(y / Arena.TILE)][(int)(x / Arena.TILE)] instanceof Enemy) { //coordinates float enemyX = x / Arena.TILE; float enemyY = y / Arena.TILE; //new bullet Bullet bullet = new Bullet(); //start coordinates bullet.setX(arena.getDroid().getX()); bullet.setY(arena.getDroid().getY()); //end coordinates (enemie) bullet.setEnemyX(enemyX); bullet.setEnemyY(enemyY); //adds bullet to arena arena.addBullet(bullet); //enables shooting shooting = true; return true; } return false; } As you can see for collision detection i'm trying to use Rectangle object. Droid example: import java.awt.geom.Rectangle2D; public class Droid { private float x; private float y; private float speed = 20f; private float rotation = 0f; private float damage = 2f; public static final int DIAMETER = 32; private Rectangle2D rectangle; public Droid() { rectangle = new Rectangle2D.Float(x, y, DIAMETER, DIAMETER); } public float getX() { return x; } public void setX(float x) { this.x = x; //rectangle update rectangle.setRect(x, y, DIAMETER, DIAMETER); } public float getY() { return y; } public void setY(float y) { this.y = y; //rectangle update rectangle.setRect(x, y, DIAMETER, DIAMETER); } public float getSpeed() { return speed; } public void setSpeed(float speed) { this.speed = speed; } public float getRotation() { return rotation; } public void setRotation(float rotation) { this.rotation = rotation; } public float getDamage() { return damage; } public void setDamage(float damage) { this.damage = damage; } public Rectangle2D getRectangle() { return rectangle; } } For now, if i start the application and i try to shot to an enemy, is immediately detected a collision and the bullet is removed! Can you help me with this? If the bullet hit an enemy or an obstacle in his way, it must disappear. Ps: i know that the movements of the bullets should be managed in another class. This code is temporary. update I realized what happens, but not why. With those for loops (which checks collisions) the movements of the bullets are instantaneous instead of gradual. In addition to this, if i add the collision detection to the Droid, the method intersects returns true ALWAYS while the droid is moving! public void moveDroid(float delta, float x, float y) { Droid droid = arena.getDroid(); int bearing = 1; if (droid.getX() > x) { bearing = -1; } if (droid.getX() != x) { droid.setX(droid.getX() + bearing * droid.getSpeed() * delta); //obstacles collision detection for(Obstacle obs : arena.getObstacles()) { if(obs.getRectangle().intersects(droid.getRectangle())) { System.out.println("Collision detected"); //ALWAYS HERE } } //controlla se è arrivato if ((droid.getX() < x && bearing == -1) || (droid.getX() > x && bearing == 1)) droid.setX(x); } bearing = 1; if (droid.getY() > y) { bearing = -1; } if (droid.getY() != y) { droid.setY(droid.getY() + bearing * droid.getSpeed() * delta); if ((droid.getY() < y && bearing == -1) || (droid.getY() > y && bearing == 1)) droid.setY(y); } }

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  • problem in array of shooter sprites which contain different colour bubbles

    - by prakash s
    everyone i am developing bubble shooter game in cocos2d I have placed shooter array which contain different color bubbles like this 00000000 it is 8 bubbles array if i tap the screen, first bubbles should move for shooting the target .png .And if i again tap the screen again 2nd position bubble should move for shooting the target.png bubbles,how it will possible for me because i have already created the array of target which contain different color bubbles, here i write the code : - (void)ccTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { // Choose one of the touches to work with UITouch *touch = [touches anyObject]; CGPoint location = [touch locationInView:[touch view]]; location = [[CCDirector sharedDirector] convertToGL:location]; // Set up initial location of projectile CGSize winSize = [[CCDirector sharedDirector] winSize]; NSMutableArray * movableSprites = [[NSMutableArray alloc] init]; NSArray *images = [NSArray arrayWithObjects:@"1.png", @"2.png", @"3.png", @"4.png",@"5.png",@"6.png",@"7.png", @"8.png", nil]; for(int i = 0; i < images.count; ++i) { int index = (arc4random() % 8)+1; NSString *image = [NSString stringWithFormat:@"%d.png", index]; CCSprite*projectile = [CCSprite spriteWithFile:image]; //CCSprite *projectile = [CCSprite spriteWithFile:@"3.png" rect:CGRectMake(0, 0,256,256)]; [self addChild:projectile]; [movableSprites addObject:projectile]; float offsetFraction = ((float)(i+1))/(images.count+1); //projectile.position = ccp(20, winSize.height/2); //projectile.position = ccp(18,0 ); //projectile.position = ccp(350*offsetFraction, 20.0f); projectile.position = ccp(10/offsetFraction, 20.0f); // projectile.position = ccp(projectile.position.x,projectile.position.y); // Determine offset of location to projectile int offX = location.x - projectile.position.x; int offY = location.y - projectile.position.y; // Bail out if we are shooting down or backwards if (offX <= 0) return; // Ok to add now - we've double checked position //[self addChild:projectile]; // Determine where we wish to shoot the projectile to int realX = winSize.width + (projectile.contentSize.width/2); float ratio = (float) offY / (float) offX; int realY = (realX * ratio) + projectile.position.y; CGPoint realDest = ccp(realX, realY); // Determine the length of how far we're shooting int offRealX = realX - projectile.position.x; int offRealY = realY - projectile.position.y; float length = sqrtf((offRealX*offRealX)+(offRealY*offRealY)); float velocity = 480/1; // 480pixels/1sec float realMoveDuration = length/velocity; // Move projectile to actual endpoint [projectile runAction:[CCSequence actions: [CCMoveTo actionWithDuration:realMoveDuration position:realDest], [CCCallFuncN actionWithTarget:self selector:@selector(spriteMoveFinished:)], nil]]; // Add to projectiles array projectile.tag = 1; [_projectiles addObject:projectile]; } }

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  • How can I discover zeroconf (Bonjour) services on Android? I'm having trouble with jmDNS.

    - by Peter Kirn
    I'm working with a Droid / Android 2.0.1 and encountering an issue apparently many people have: I'm unable to discover services using the one pure-Java zeroconf library I know of, jmDNS. (Apple's Bonjour, while it works on Linux and Windows Java, I believe would be harder to port to Android because of reliance on native code.) I can create services, but not discover them. I'm trying to make sense of what's going on. There is an ongoing issue report here; related to multicast and IPv6, but seems to be throwing users of jmDNS, too: http://code.google.com/p/android/issues/detail?id=2323 Any idea why this person might be having success? See comment 22 in the bug report. (I'm new to SO, so can't post more than one URL.) I have tested their code, but without any luck. Has anyone successfully accomplished zeroconf service discovery on Android, using jmDNS or another library? Is it possible my discovery issue is related to the IPv6 multicast problem?

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  • Android: trouble updating to Android SDK Tools, revision 7.

    - by Arhimed
    Currently I have Android SDK 2.1 (+ tools revision 4). I'd like to upgrade to Android SDK 2.2. When I try to do it I'm informed I need to upgrade Android SDK Tools to revision 7 first. So I agree, the process starts and then I get an error: -= warning! =- A folder failed to be renamed or moved. On Windows this typically means that a program Is using that Folder (for example Windows Explorer or your anti-virus software.) Please momentarily deactivate your anti-virus software. Please also close any running programs that may be accessing the directory 'D:\Install\Programming\android-sdk-working-dir\android-sdk_r04-windows\android-sdk-windows\too!s'. When ready, press YES to try again. Downloading Android SDK Tools, revision 7 Installing Android SDK Tools, revision 7 Failed to rename directory D:\Install\Programming\android-sdk-working-dir\android-sdk_r04-windows\android-sdk-windows\tools to D:\Install\Programming\android-sdk-working-dir\android-sdk_r04-windows\android-sdk-windows\temp\ToolPackage.old01. I am aware of http/https and antivirus issues. So I disactivated my AV. I also closed any application that might hold a handle to the folder. Eclipse is also closed (I start the manager via command line). However I still get the same error. Looks like the only app that can hold a handle to the folder is the manager itself, because its starting directory is the one the error complains about ('\tools'). I am on Win XP Pro + SP3. Does anyone have an idea?

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  • Having a little trouble with this Java code. Beginner probably mixing some things with C#.

    - by Sergio Tapia
    package practico1; /** * Programador: Sergio Tapia Gutierrez * Fecha: Lunes 10, Mayo - 2010 * Practico: 1 */ public class Main { public static void main(String[] args) { System.out.println("Esta es una pequena aplicacion para mostrar los"); System.out.println("distintos tipos de datos que existen en Java 6."); //boolean, char, byte, short, int, long, float, double, String ejemplosBoolean(); } public void ejemplosBoolean(){ } } So, I'm just testing some things out, but I'm getting an error claiming that I'm trying to run ejemplosBoolean() in a static context when it isn't a static method. My question is, in Java do methods have to have static in order to use them even if they are in the same class?

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  • Trouble with onscreen keyboard orientation in iPhone OpenGL ES application.

    - by Plumenator
    I need to take keyboard input in my OpenGL ES application, so I just created an empty UITextView and added it as a subview to the main window along with the view that presents my content. I use the UITextview to control the keyboard and it works fine in a single orientation. I then changed my code to support all orientations by rotating the OpenGL content myself based on UIDeviceOrientation notifications. To rotate the keyboard, I overrode the shouldAutoRotateInterfaceOrientation method in the UITextView's controller. But I still see that the keyboard does not rotate according to the orientation. Any clues?

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  • How can I save form input to a database, I'm having trouble sending the values to my controller.

    - by Sergio Tapia
    Here's my RegisterController: public function saveforminformationAction(){ $request = $this->getRequest(); if($request->isPost()){ //I NEED HELP WITH THE getFormValues() METHOD. $formResults = $this->getFormValues(); $db = $this->_getParam('db'); $data = array( 'user' => $formResults['username'], 'email' => $formResults['email'], 'password' => $formResults['password'], 'passwordc' => $formResults['passwordc'], 'name' => $formResults['name'], 'avatar' => $formResults['avatar'], ); $db->insert('Usuario',$data); } } And here's my registration view: <body> <h1>Thanks for signing up!</h1> <?php $this->form->setAction($this->url(array('controller' => 'registration','action'=>'saveforminformation'))); $this->form->setMethod('post'); echo $this->form; ?> <img alt="signupimg" src="/img/signup.png"> </body> I'm fairly new to Zend, but I'm eager to learn. How can I get the values sent in the form?

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  • Trying to scrape a page with php/curl, trouble with cookies, post vars, and hidden fields.

    - by Patrick
    Im trying to use CURL to scrape the results from the page http://adlab.msn.com/Online-Commercial-Intention/Default.aspx My understanding, is that i visit this page, it places cookie info and sets a few variables. I enter my query, select the query radio option, and click go. The problem, is that its not working the way that it does through the website as im trying to get it to using the code below. Ive tweaked several things, but im posting here in hopes someone can find what im missing. This is my code as it stands now: include("simple_html_dom.php"); $ckfile = tempnam ("/tmp", "CURLCOOKIE"); $query = $_GET['query']; $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, "http://adlab.msn.com/Online-Commercial-Intention/default.aspx"); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt($ch, CURLOPT_COOKIEJAR, $ckfile); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3"); $pagetext1 = curl_exec($ch); curl_exec($ch); $html2 = str_get_html($pagetext1); $viewstate = $html2->find('input[id=__VIEWSTATE]', 1)->plaintext; echo $query."<br>".$viewstate."<br>"; $params = array( '__EVENTTARGET' => "", '__EVENTARGUMENT' => "", '__LASTFOCUS' => "", '__VIEWSTATE' => "$viewstate", 'MyMaster%3ADemoPageContent%3AtxtQuery' => "$query", 'MyMaster%3ADemoPageContent%3Alan' => "QueryRadio", 'MyMaster%3ADemoPageContent%3AgoButton.x' => "17", 'MyMaster%3ADemoPageContent%3AgoButton.y' => "12", 'MyMaster%3ADemoPageContent%3AidQuery' => "$query", 'MyMaster%3AHiddenKeywordTextBox' => "", ); $ch = curl_init(); curl_setopt($ch, CURLOPT_URL, 'http://adlab.msn.com/Online-Commercial-Intention/default.aspx'); curl_setopt($ch, CURLOPT_POST, 1); curl_setopt($ch, CURLOPT_REFERER, 'http://adlab.msn.com/Online-Commercial-Intention/default.aspx'); curl_setopt($ch, CURLOPT_POSTFIELDS, '$params'); curl_setopt($ch, CURLOPT_HEADER, 1); curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1); curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); curl_setopt ($ch, CURLOPT_COOKIEFILE, $ckfile); curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3"); $pagetext = curl_exec($ch); curl_exec($ch); // echo $ckfile; $html = str_get_html($pagetext); $ret = $html->find('.intentionLabel', 1)->plaintext; echo $ret."<br><br><br>"; echo $pagetext;

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  • I am having trouble using FileReader to write a txt file to an array (Java), what am I doing wrong?

    - by deliriumtremens
    Scanner s = null; try { s = new Scanner(new BufferedReader(new FileReader("rates.txt"))); for (int i=0; i<9; i++){ while(s.hasNext()){rates[i] = s.next();} System.out.println(rates[i]); } }catch (IOException e){ System.out.println(e); } finally { if (s != null) { s.close(); } } When I run this code, it reads the last chunk of characters in my txt file, places them in rates[0], sticks null in 1-8, then puts that same last chunk in rates[9]. I'm not sure why it's reading the end of my file first. The contents of the txt are below.. USD 1.34 EUR 1.00 JPY 126.28 GBP 0.88 INR 60.20 It reads the 60.20, which is all it is recording in the array. Any help would be appreciated.

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  • Using jQuery to parse an RSS feed, having trouble in firefox and chrome.

    - by sjmarshy
    I used a jQuery library called jFeed to parse and display my blogs rss feed on my personal website. It worked perfectly well at first, but upon checking later it simply displays nothing, except in Internet Explorer, where it seems to work fine. After checking the javascript console using Firebug in Firefox, it shows an error in the 'XML' tab as follows: XML Parsing Error: no element found Location: moz-nullprincipal:{3f8a0c62-32b4-4f63-b69c- 9ef402b40b64} Line Number 1, Column 1: ^ Though I have no idea what to do with this information. Here is the code I used to get the rss feed and display it (it is almost exactly the same as the example provided by the jFeed website): jQuery.getFeed({ url: 'http://sammarshalldesign.co.uk/blog/wordpress/?feed=rss2', success: function(feed) { var html = ''; for(var i = 0; i < feed.items.length && i < 5; i++) { var item = feed.items[i]; html += '<h3>' + '<a href="' + item.link + '">' + item.title + '</a>' + '</h3>'; html += '<div>' + item.description + '</div>'; }//end for jQuery('#feed').append(html); }//end feed function });//end getfeed Any help would be really appreciated.

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