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• Sprite batching in OpenGL

  - by Roy T.

  I've got a JAVA based game with an OpenGL rendering front that is drawing a large amount of sprites every frame (during testing it peaked at 700). Now this game is completely unoptimized. There is no spatial partitioning (so a sprite is drawn even if it isn't on screen) and every sprite is drawn separately like this: graphics.glPushMatrix(); { graphics.glTranslated(x, y, 0.0); graphics.glRotated(degrees, 0, 0, 1); graphics.glBegin(GL2.GL_QUADS); graphics.glTexCoord2f (1.0f, 0.0f); graphics.glVertex2d(half_size , half_size); // upper right // same for upper left, lower left, lower right graphics.glEnd(); } graphics.glPopMatrix(); Currently the game is running at +-25FPS and is CPU bound. I would like to improve performance by adding spatial partitioning (which I know how to do) and sprite batching. Not drawing sprites that aren't on screen will help a lot, however since players can zoom out it won't help enough, hence the need for batching. However sprite batching in OpenGL is a bit of mystery to me. I usually work with XNA where a few classes to do this are built in. But in OpenGL I don't know what to do. As for further optimization, the game I'm working on as a few interesting characteristics. A lot of sprites have the same texture and all the sprites are square. Maybe these characteristics will help determine an efficient batching technique?

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• CCMoveBy values on update()

  - by Jose M Pan

  Hope you can help me. This is my problem: I have a scheduled update, here I track the movements of my objects (sprites), I move them with CCMoveBy, and I need to constantly update the zOrder. For setting the zOrder I've made a setZOrder(), which it takes the actual position of the sprite. And here is the problem, I get all the X and Y values AFTER the object is in the target. I know I get the values after the object is in the new position because I've made a CCLog. I can read all the values from the sprite, only when it's in the new position, so everything is well sorted only when the objects are not moving. How can I get the CCMoveBy values on every tick update? (or how can I get the CCMoveBy values in "real-time"?) Thanks a lot in advance, Here is an idea of my code. this->schedule(schedule_selector(Game::update)); void Game::update(float dt) { setZOrder(); moveObjects(); } void Game::setZOrder() { //This function takes the X and Y position and the row and column where the sprite is. Is working good. But I'm getting the "move" action values, after the object is in place. } void Game::moveObjects() { for (i=0; i < numChildren; i++) { CCActionInterval* move = CCMoveBy::create(targetPoint, time); object[i]->runAction(move); } }

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• Sell good Dumps, track 1&2, CVV, Paypal, WU TRANSFER Service

  - by gOOD dUMPS cvv

  my products for sale: Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers I am here to sell, supply good and quality CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... In last 5 years my Job Is This. PRESTIGE is my first motto. Not easy to build the good PRESTIGE. My motto is Always make customers satisfied & happy ! I have unlocked many softwares make good money, example: -Software to make the bug and crack MTCN of the Western Union. Version : 2.0.1.1 ( new update ) -Software to open balance in PayPal and Bank Login -Software hacking credit card, debit card Version 1.0 **I only sell it for my good customers, and my familiarity ***I update more than 200 CC + CVV everyday. Fresh + good valid + Strong,private + high balance with best price Our products are checked by a partner who works in a bank. Our products are better than 5-7 days after they are dead. They are raised mainly for money atm. Can be used in most countries. ** If you are a serious buyer, let contact via : Yahoo ID: goodcvv_dumps Mail: [email protected] ICQ: 667686221 * Sell CVV; Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers. CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... I promise CC of mine are good,high balance and fresh all with good price. PRESTIGE is my first motto. I sure u will be happy All I need is good & serious buyer to business for a long time * SELL GOOD CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;...!IF NOT GOOD, WILL CHANGE IMMEDIATELY * Contact me to negotiate about the price if buying bulk. I really need more serious buyers to do long business. You will be given many endow when we have long time business,you do good for me, I do good for u too. Long & good business.This is all I need :) - US (vis,mas)= $3/CC; US (amex,dis)= $5/CC; US BIN; US fullz; USA Visa VBV info for sale. - UK (vis,mas)= $8/CC; UK (amex,dis)= $20/CC; UK BIN; UK DOB; UK with Postcode; UK fullz; UK pass VBV - EU (vis,mas)= $20/CC; EU Amex = $30/CC; EU DOB; EU fullz; EU pass VBV. Include: Italy CVV; Spain CVV; France CVV; Sweden CVV; Denmark CVV; Slovakia CVV; Portugal CVV; Norway CVV; Belgium CVV Greece CVV; Germany CVV; Ireland CVV; Newzealand CVV; Switzerland CVV; Finland CVV; Turkey CVV; Netherland CVV - CA (vis,mas)= $8/CC; CA BIN; CA GOLD; CA Amex; CA Fullz; CA pass VBV - AU (vis,mas)= $10/CC; AU BIN; AU Amex; AU DOB; AU fullz; AU pass VBV - Brazil random = $15/CC; Brazil BIN - Middle East: UAE = $15/CC; Qatar= $10/CC; Saudi Arabia;... - ASIA ( Malay; Indo; Japan;China; Hongkong; Singapore...) = $10/CC - South Africa = $10/CC - And All CC; CC pass VBV; CVV pass VBV; CCN SSN- INTER ( BIN,DOB,SSN,FULLZ) of another Countries. Good CC, CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... [Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers] [Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers] ------------------------------ CONTACT via Y!H: goodcvv_dumps or ICQ: 667686221 or Mail: [email protected] ------------------------------------ * WARNING!!! BEFORE MAKE BUSINESS or add my ID, let read carefull my rule because i really hate Spammers,Rippers and Scammers - Dont trust, dont talk more - Don't Spamm And Don't Scam! I very hate do spam or rip and I don't want who spam me. - All my CVV are tested before sell, that's sure - I accept LR; WU or MoneyGram. - I only work with reliable buyers. Need good & serious buyer to business for a long time - I work with only one slogan: prestige and quality to satisfy my clients !!! - I was so happy to see you actually make more big money from the business with me Once you trust me, work with me. And if not trust,dont contact me, dont waste time! --------------------------THANKS, LOOK FORWARD TO WORKING WITH ALL of YOU !!!---------------------------- * Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts,Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers. CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... [Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts,Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers] * Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected] ===================== WESTERN UNION TRANSFER SERVICE ======================= We are Very PROFESSIONAL in WESTION UNION. Our Special Job Is this We Have big Western Union Service for everywhere and every when for you. We transfer money to all country in world. We can transfer big amount. And you can receive this money from your country. Our service accept payment 15% of transfer amount for small transfer . And 10% of big transfer. For large transfer . We make is very safe. And this service is very fast. We start to run software to make transfer to your WU info very fast,without delay and immediately. We give you MTCN and sender info and all cashout info, 15 mins after your payment complete. CONTACT US via Y!H: goodcvv_dumps or ICQ: 667686221 or Mail: [email protected] to know more info, price list of WU TRANSFER SERVICE ====================== Verified Paypal Accounts for sale ======================== If u are interested in it, contact me to know the price list & have the Tips for using above accounts safely,not be suspended when using accounts. I will not responsible if you get suspended. ===================== Dumps, Track1&2 with PIN & without PIN for ATM Cashout ======================= - Tracks 1&2 US;Tracks 1&2 UK;Tracks 1&2 CA,AU; Tracks 1&2 EU, with PIN and without PIN. - Dumps US; Dumps CA; Dumps EU; Dumps ASIA; Dumps AU, Brazil with good quality & price. Update Types of Dumps having now: Mix; Debit Classic; MC Standard;MC World; Gold; Platinum; Business/Corporate; Purchasing/Signature; Infinite - Contact me via Y!H: goodcvv_dumps (ICQ: 667686221) to know more info & price list of dumps, tracks ! ======================== Bank Logins Account (US UK CA AU EU) ======================== Sell Bank acc: Bank BOA, Bank HSBC USA, HSBC UK, Chase,Washovia, Halifax, Barclays, Abbey,... I make sure that my BANK LOGIN are security & easily to use. If u are interested in this, contact me to know more info about balance, price list,...! ================= Top-up Prepaid Cards, Debit Cards ========================= - If you hold any prepaid cards, debit cards, any country or any company. - I can top you funds into your prepaid cards, debit cards or any virtual cards. - top up your debit cards with hacked credit cards - top up your prepaid card with bank account login - top up you card with paypal account or any other - Have all tools to top your cards account - Top up does not take more then 10 minutes - Payoneer Cards top up available at cheap ================= Service: Provide Ebay - Apple - Amazon - Itunes GIFT CARD & Game Card with best price ===================== Contact me to negotiate about the price if buying bulk - PlayStation® Network Card - Xbox LIVE 12 Month Gold Membership = 30$ Xbox LIVE 4000 Microsoft Points = 30$ Zynga $50 Game Card (World Wide) = 30$ Ultimate game card 50$ = 30$ Ultimate game card 20$ = 10$ Key Diablo 3 = 25$ ITUNES GIFT CARD AMAZON GIFT CARD Ebay gift card Visa gift card ---------------- Our products are checked by a partner who works in a bank -------------------- Our products are better than 5-7 days after they are dead. They are raised mainly for money atm. Can be used in most countries. ---------------- Contact Via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected] ------------------------ Need good & serious buyer to business for a long time [Sell CVV, Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Card, ATM Card, MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers....Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected]] [Sell CVV, Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Card, ATM Card, MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers....Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected]] [Sell CVV, Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Card, ATM Card, MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers....Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected]] [Sell CVV, Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Card, ATM Card, MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers....Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected]] [Sell CVV, Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Card, ATM Card, MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers....Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected]]

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• Segfault when iterating over a map<string, string> and drawing its contents using SDL_TTF

  - by Michael Stahre

  I'm not entirely sure this question belongs on gamedev.stackexchange, but I'm technically working on a game and working with SDL, so it might not be entirely offtopic. I've written a class called DebugText. The point of the class is to have a nice way of printing values of variables to the game screen. The idea is to call SetDebugText() with the variables in question every time they change or, as is currently the case, every time the game's Update() is called. The issue is that when iterating over the map that contains my variables and their latest updated values, I get segfaults. See the comments in DrawDebugText() below, it specifies where the error happens. I've tried splitting the calls to it-first and it-second into separate lines and found that the problem doesn't always happen when calling it-first. It alters between it-first and it-second. I can't find a pattern. It doesn't fail on every call to DrawDebugText() either. It might fail on the third time DrawDebugText() is called, or it might fail on the fourth. Class header: #ifndef CLIENT_DEBUGTEXT_H #define CLIENT_DEBUGTEXT_H #include <Map> #include <Math.h> #include <sstream> #include <SDL.h> #include <SDL_ttf.h> #include "vector2.h" using std::string; using std::stringstream; using std::map; using std::pair; using game::Vector2; namespace game { class DebugText { private: TTF_Font* debug_text_font; map<string, string>* debug_text_list; public: void SetDebugText(string var, bool value); void SetDebugText(string var, float value); void SetDebugText(string var, int value); void SetDebugText(string var, Vector2 value); void SetDebugText(string var, string value); int DrawDebugText(SDL_Surface*, SDL_Rect*); void InitDebugText(); void Clear(); }; } #endif Class source file: #include "debugtext.h" namespace game { // Copypasta function for handling the toString conversion template <class T> inline string to_string (const T& t) { stringstream ss (stringstream::in | stringstream::out); ss << t; return ss.str(); } // Initializes SDL_TTF and sets its font void DebugText::InitDebugText() { if(TTF_WasInit()) TTF_Quit(); TTF_Init(); debug_text_font = TTF_OpenFont("LiberationSans-Regular.ttf", 16); TTF_SetFontStyle(debug_text_font, TTF_STYLE_NORMAL); } // Iterates over the current debug_text_list and draws every element on the screen. // After drawing with SDL you need to get a rect specifying the area on the screen that was changed and tell SDL that this part of the screen needs to be updated. this is done in the game's Draw() function // This function sets rects_to_update to the new list of rects provided by all of the surfaces and returns the number of rects in the list. These two parameters are used in Draw() when calling on SDL_UpdateRects(), which takes an SDL_Rect* and a list length int DebugText::DrawDebugText(SDL_Surface* screen, SDL_Rect* rects_to_update) { if(debug_text_list == NULL) return 0; if(!TTF_WasInit()) InitDebugText(); rects_to_update = NULL; // Specifying the font color SDL_Color font_color = {0xff, 0x00, 0x00, 0x00}; // r, g, b, unused int row_count = 0; string line; // The iterator variable map<string, string>::iterator it; // Gets the iterator and iterates over it for(it = debug_text_list->begin(); it != debug_text_list->end(); it++) { // Takes the first value (the name of the variable) and the second value (the value of the parameter in string form) //---------THIS LINE GIVES ME SEGFAULTS----- line = it->first + ": " + it->second; //------------------------------------------ // Creates a surface with the text on it that in turn can be rendered to the screen itself later SDL_Surface* debug_surface = TTF_RenderText_Solid(debug_text_font, line.c_str(), font_color); if(debug_surface == NULL) { // A standard check for errors fprintf(stderr, "Error: %s", TTF_GetError()); return NULL; } else { // If SDL_TTF did its job right, then we now set a destination rect row_count++; SDL_Rect dstrect = {5, 5, 0, 0}; // x, y, w, h dstrect.x = 20; dstrect.y = 20*row_count; // Draws the surface with the text on it to the screen int res = SDL_BlitSurface(debug_surface,NULL,screen,&dstrect); if(res != 0) { //Just an error check fprintf(stderr, "Error: %s", SDL_GetError()); return NULL; } // Creates a new rect to specify the area that needs to be updated with SDL_Rect* new_rect_to_update = (SDL_Rect*) malloc(sizeof(SDL_Rect)); new_rect_to_update->h = debug_surface->h; new_rect_to_update->w = debug_surface->w; new_rect_to_update->x = dstrect.x; new_rect_to_update->y = dstrect.y; // Just freeing the surface since it isn't necessary anymore SDL_FreeSurface(debug_surface); // Creates a new list of rects with room for the new rect SDL_Rect* newtemp = (SDL_Rect*) malloc(row_count*sizeof(SDL_Rect)); // Copies the data from the old list of rects to the new one memcpy(newtemp, rects_to_update, (row_count-1)*sizeof(SDL_Rect)); // Adds the new rect to the new list newtemp[row_count-1] = *new_rect_to_update; // Frees the memory used by the old list free(rects_to_update); // And finally redirects the pointer to the old list to the new list rects_to_update = newtemp; newtemp = NULL; } } // When the entire map has been iterated over, return the number of lines that were drawn, ie. the number of rects in the returned rect list return row_count; } // The SetDebugText used by all the SetDebugText overloads // Takes two strings, inserts them into the map as a pair void DebugText::SetDebugText(string var, string value) { if (debug_text_list == NULL) { debug_text_list = new map<string, string>(); } debug_text_list->erase(var); debug_text_list->insert(pair<string, string>(var, value)); } // Writes the bool to a string and calls SetDebugText(string, string) void DebugText::SetDebugText(string var, bool value) { string result; if (value) result = "True"; else result = "False"; SetDebugText(var, result); } // Does the same thing, but uses to_string() to convert the float void DebugText::SetDebugText(string var, float value) { SetDebugText(var, to_string(value)); } // Same as above, but int void DebugText::SetDebugText(string var, int value) { SetDebugText(var, to_string(value)); } // Vector2 is a struct of my own making. It contains the two float vars x and y void DebugText::SetDebugText(string var, Vector2 value) { SetDebugText(var + ".x", to_string(value.x)); SetDebugText(var + ".y", to_string(value.y)); } // Empties the list. I don't actually use this in my code. Shame on me for writing something I don't use. void DebugText::Clear() { if(debug_text_list != NULL) debug_text_list->clear(); } }

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• Sell good CVV, Dumps track 1&2, Paypal, WU TRANSFER

  - by Good Dumps CVV for sale

  My products for sale: Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers I am here to sell, supply good and quality CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... In last 5 years my Job Is This. PRESTIGE is my first motto. Not easy to build the good PRESTIGE. My motto is Always make customers satisfied & happy ! I have unlocked many softwares make good money, example: -Software to make the bug and crack MTCN of the Western Union. Version : 2.0.1.1 ( new update ) -Software to open balance in PayPal and Bank Login -Software hacking credit card, debit card Version 1.0 **I only sell it for my good customers, and my familiarity ***I update more than 200 CC + CVV everyday. Fresh + good valid + Strong,private + high balance with best price Our products are checked by a partner who works in a bank. Our products are better than 5-7 days after they are dead. They are raised mainly for money atm. Can be used in most countries. ** If you are a serious buyer, let contact via : Yahoo ID: goodcvv_dumps Mail: [email protected] ICQ: 667686221 * Sell CVV; Dumps,track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers. CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... I promise CC of mine are good,high balance and fresh all with good price. PRESTIGE is my first motto. I sure u will be happy All I need is good & serious buyer to business for a long time * SELL GOOD CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;...!IF NOT GOOD, WILL CHANGE IMMEDIATELY * Contact me to negotiate about the price if buying bulk. I really need more serious buyers to do long business. You will be given many endow when we have long time business,you do good for me, I do good for u too. Long & good business.This is all I need :) - US (vis,mas)= $3/CC; US (amex,dis)= $5/CC; US BIN; US fullz; USA Visa VBV info for sale. - UK (vis,mas)= $8/CC; UK (amex,dis)= $20/CC; UK BIN; UK DOB; UK with Postcode; UK fullz; UK pass VBV - EU (vis,mas)= $20/CC; EU Amex = $30/CC; EU DOB; EU fullz; EU pass VBV. Include: Italy CVV; Spain CVV; France CVV; Sweden CVV; Denmark CVV; Slovakia CVV; Portugal CVV; Norway CVV; Belgium CVV Greece CVV; Germany CVV; Ireland CVV; Newzealand CVV; Switzerland CVV; Finland CVV; Turkey CVV; Netherland CVV - CA (vis,mas)= $8/CC; CA BIN; CA GOLD; CA Amex; CA Fullz; CA pass VBV - AU (vis,mas)= $10/CC; AU BIN; AU Amex; AU DOB; AU fullz; AU pass VBV - Brazil random = $15/CC; Brazil BIN - Middle East: UAE = $15/CC; Qatar= $10/CC; Saudi Arabia;... - ASIA ( Malay; Indo; Japan;China; Hongkong; Singapore...) = $10/CC - South Africa = $10/CC - And All CC; CC pass VBV; CVV pass VBV; CCN SSN- INTER ( BIN,DOB,SSN,FULLZ) of another Countries. Good CC, CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... [Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfer and Bank Transfers] [Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts;Ebay Accounts Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers] ------------------------------ CONTACT via Y!H: goodcvv_dumps or ICQ: 667686221 or Mail: [email protected] ------------------------------------ * WARNING!!! BEFORE MAKE BUSINESS or add my ID, let read carefull my rule because i really hate Spammers,Rippers and Scammers - Dont trust, dont talk more - Don't Spamm And Don't Scam! I very hate do spam or rip and I don't want who spam me. - All my CVV are tested before sell, that's sure - I accept LR; WU or MoneyGram. - I only work with reliable buyers. Need good & serious buyer to business for a long time - I work with only one slogan: prestige and quality to satisfy my clients !!! - I was so happy to see you actually make more big money from the business with me Once you trust me, work with me. And if not trust,dont contact me, dont waste time! --------------------------THANKS, LOOK FORWARD TO WORKING WITH ALL of YOU !!!---------------------------- * Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts,Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers. CVV for shipping;booking airline ticket;shopping online;ordering Laptop,Iphone;... [Sell CVV; Dumps, track1&2; Bank logins; Paypal Accounts,Ebay Accounts; Mailpass; SMTP;RDP;VPS;CCN;SSN; Sell Amazon gift card & itunes gift card; Game Cards, ATM Card; MSR, ATM SKIMMERS. Do WU Transfers and Bank Transfers] * Contact via Y!H: goodcvv_dumps or ICQ: 667686221. Mail: [email protected] ===================== WESTERN UNION TRANSFER SERVICE ======================= We are Very PROFESSIONAL in WESTION UNION. Our Special Job Is this We Have big Western Union Service for everywhere and every when for you. We transfer money to all country in world. We can transfer big amount. And you can receive this money from your country. Our service accept payment 15% of transfer amount for small transfer . And 10% of big transfer. For large transfer . We make is very safe. And this service is very fast. We start to run software to make transfer to your WU info very fast,without delay and immediately. We give you MTCN and sender info and all cashout info, 15 mins after your payment complete. CONTACT US via Y!H: goodcvv_dumps or ICQ: 667686221 or Mail: [email protected] to know more info, price list of WU TRANSFER SERVICE ====================== Verified Paypal Accounts for sale ======================== If u are interested in it, contact me to know the price list & have the Tips for using above accounts safely,not be suspended when using accounts. I will not responsible if you get suspended. ===================== Dumps, Track1&2 with PIN & without PIN for ATM Cashout ======================= - Tracks 1&2 US;Tracks 1&2 UK;Tracks 1&2 CA,AU; Tracks 1&2 EU, with PIN and without PIN. - Dumps US; Dumps CA; Dumps EU; Dumps ASIA; Dumps AU, Brazil with good quality & price. 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• Movement prediction for non-shooters

  - by ShadowChaser

  I'm working on an isometric 2D game with moderate-scale multiplayer, approximately 20-30 players connected at once to a persistent server. I've had some difficulty getting a good movement prediction implementation in place. Physics/Movement The game doesn't have a true physics implementation, but uses the basic principles to implement movement. Rather than continually polling input, state changes (ie/ mouse down/up/move events) are used to change the state of the character entity the player is controlling. The player's direction (ie/ north-east) is combined with a constant speed and turned into a true 3D vector - the entity's velocity. In the main game loop, "Update" is called before "Draw". The update logic triggers a "physics update task" that tracks all entities with a non-zero velocity uses very basic integration to change the entities position. For example: entity.Position += entity.Velocity.Scale(ElapsedTime.Seconds) (where "Seconds" is a floating point value, but the same approach would work for millisecond integer values). The key point is that no interpolation is used for movement - the rudimentary physics engine has no concept of a "previous state" or "current state", only a position and velocity. State Change and Update Packets When the velocity of the character entity the player is controlling changes, a "move avatar" packet is sent to the server containing the entity's action type (stand, walk, run), direction (north-east), and current position. This is different from how 3D first person games work. In a 3D game the velocity (direction) can change frame to frame as the player moves around. Sending every state change would effectively transmit a packet per frame, which would be too expensive. Instead, 3D games seem to ignore state changes and send "state update" packets on a fixed interval - say, every 80-150ms. Since speed and direction updates occur much less frequently in my game, I can get away with sending every state change. Although all of the physics simulations occur at the same speed and are deterministic, latency is still an issue. For that reason, I send out routine position update packets (similar to a 3D game) but much less frequently - right now every 250ms, but I suspect with good prediction I can easily boost it towards 500ms. The biggest problem is that I've now deviated from the norm - all other documentation, guides, and samples online send routine updates and interpolate between the two states. It seems incompatible with my architecture, and I need to come up with a better movement prediction algorithm that is closer to a (very basic) "networked physics" architecture. The server then receives the packet and determines the players speed from it's movement type based on a script (Is the player able to run? Get the player's running speed). Once it has the speed, it combines it with the direction to get a vector - the entity's velocity. Some cheat detection and basic validation occurs, and the entity on the server side is updated with the current velocity, direction, and position. Basic throttling is also performed to prevent players from flooding the server with movement requests. After updating its own entity, the server broadcasts an "avatar position update" packet to all other players within range. The position update packet is used to update the client side physics simulations (world state) of the remote clients and perform prediction and lag compensation. Prediction and Lag Compensation As mentioned above, clients are authoritative for their own position. Except in cases of cheating or anomalies, the client's avatar will never be repositioned by the server. No extrapolation ("move now and correct later") is required for the client's avatar - what the player sees is correct. However, some sort of extrapolation or interpolation is required for all remote entities that are moving. Some sort of prediction and/or lag-compensation is clearly required within the client's local simulation / physics engine. Problems I've been struggling with various algorithms, and have a number of questions and problems: Should I be extrapolating, interpolating, or both? My "gut feeling" is that I should be using pure extrapolation based on velocity. State change is received by the client, client computes a "predicted" velocity that compensates for lag, and the regular physics system does the rest. However, it feels at odds to all other sample code and articles - they all seem to store a number of states and perform interpolation without a physics engine. When a packet arrives, I've tried interpolating the packet's position with the packet's velocity over a fixed time period (say, 200ms). I then take the difference between the interpolated position and the current "error" position to compute a new vector and place that on the entity instead of the velocity that was sent. However, the assumption is that another packet will arrive in that time interval, and it's incredibly difficult to "guess" when the next packet will arrive - especially since they don't all arrive on fixed intervals (ie/ state changes as well). Is the concept fundamentally flawed, or is it correct but needs some fixes / adjustments? What happens when a remote player stops? I can immediately stop the entity, but it will be positioned in the "wrong" spot until it moves again. If I estimate a vector or try to interpolate, I have an issue because I don't store the previous state - the physics engine has no way to say "you need to stop after you reach position X". It simply understands a velocity, nothing more complex. I'm reluctant to add the "packet movement state" information to the entities or physics engine, since it violates basic design principles and bleeds network code across the rest of the game engine. What should happen when entities collide? There are three scenarios - the controlling player collides locally, two entities collide on the server during a position update, or a remote entity update collides on the local client. In all cases I'm uncertain how to handle the collision - aside from cheating, both states are "correct" but at different time periods. In the case of a remote entity it doesn't make sense to draw it walking through a wall, so I perform collision detection on the local client and cause it to "stop". Based on point #2 above, I might compute a "corrected vector" that continually tries to move the entity "through the wall" which will never succeed - the remote avatar is stuck there until the error gets too high and it "snaps" into position. How do games work around this?

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• Using XNA ContentPipeline to export a file in a machine without full XNA GS

  - by krolth

  My game uses the Content Pipeline to load the spriteSheet at runtime. The artist for the game sends me the modified spritesheet and I do a build in my machine and send him an updated project. So I'm looking for a way to generate the xnb files in his machine (this is the output of the content pipeline) without him having to install the full XNA Game studio. 1) I don't want my artist to install VS + Xna (I know there is a free version of VS but this won't scale once we add more people to the team). 2) I'm not interested in running this editor/tool in Xbox so a Windows only solution works. 3) I'm aware of MSBuild options but they require full XNA I researched Shawn's blog and found the option of using Msbuild Sample or a new option in XNA 4.0 that looked promising here but seems like it has the same restriction: Need to install full XNA GS because the ContentPipeline is not part of the XNA redist. So has anyone found a workaround for this?

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• Setting Higher Z-Index for Sprite

  - by Siddharth

  For my game, I have to set highest z index for my sprite. At present, I wrote following code but didn't work for me. Sprite houseSprite = new Sprite(pX, pY, textureManager.houseBgRegion.deepCopy(), mVertexBufferObjectManager); attachChild(houseSprite); houseSprite.setZIndex(500); sortChildren(); My requirement did not satisfied with setting sprite in the HUD. So any how I have to apply highest z index. Also in my game sprites are dynamically generated as per game play. So members please share your thoughts.

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• Friday Fun: Play Tetris in Google Chrome

  - by Asian Angel

  Do you prefer playing classic games rather than the newer ones? Then get ready for some classic goodness with the JC-Tetris extension for Google Chrome. JC-Tetris in Action When you click on your new “JC-Tetris Toolbar Button” a new mini-Chrome window will open with the game displayed inside. This could be very convenient for those who would like or need to pause the game, minimize the window, and finish the game later. All that is needed to play are the four “Arrow Keys & the Space Bar”. Note: The text was small when the window first opened during our test so we used the “Ctrl +” keyboard shortcut twice to enlarge it. You may or may not experience similar text size results. Like any Tetris game things start out “quietly enough” but this one speeds up quickly, so be prepared! Notice that you do get a warning of what is waiting to drop onto the game board on the left side. Whenever you complete a game you will see this small window asking if you would like to enter a name for the score…you can easily ignore/bypass the window by clicking “Cancel”. Another game and a much better result. Do not be surprised if you feel that little burst of “rushed panic” at the end! Conclusion JC-Tetris is an enjoyable way to relax when you need a break. The ability to pause the game and minimize it for later makes it even better. Have fun! Links Download the JC-Tetris extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Friday Fun: Get Your Mario OnFriday Fun: First Person TetrisFriday Fun: Play MineSweeper in Google ChromeFriday Fun: Play 3D Rally Racing in Google ChromeHow to Make Google Chrome Your Default Browser TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Dark Side of the Moon (8-bit) Norwegian Life If Web Browsers Were Modes of Transportation Google Translate (for animals) Out of 100 Tweeters Roadkill’s Scan Port scans for open ports

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• Cocos2d+pybox2d vs Cocos2d-Iphone

  - by DraskyVanderhoff

  I'm now working with two guys for making our first pc indie game and we decide to use cocos2d+pybox2d ( yeah , 2d python game :) ). We decide this based on what i seen in cocos2d iphone games , but i don't get very clear if cocos2d-iphone is just a porting with just a little more features or is far more better than cocos2d for pc. If you can get me out of this dilemma it would be great. I just want to be sure that i'm on the right track ( and also i want to porting this game for android and iphone if it got success in pc , but first my lovely pc :P ) PD: For the maps we will use Tiled , so is totally compatible with cocos2d ( any of both cases i think... )

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• Silverlight Cream for March 11, 2010 -- #812

  - by Dave Campbell

  In this Issue: Walter Ferrari, Viktor Larsson, Bill Reiss(-2-, -3-, -4-), Jonathan van de Veen, Walt Ritscher, Jobi Joy, Pete Brown, Mike Taulty, and Mark Miller. Shoutouts: Going to MIX10? John Papa announced Got Questions? Ask the Experts at MIX10 Pete Brown listed The Essential WPF/Silverlight/XNA Developer and Designer Toolbox From SilverlightCream.com: How to extend Bing Maps Silverlight with an elevation profile graph - Part 2 In this second and final tutorial, Walter Ferrari adds elevation to his previous BingMaps post. I'm glad someone else worked this out for me :) Navigating AWAY from your Silverlight page Viktor Larsson has a post up on how to navigate to something other than your Silverlight page like maybe a mailto ... SilverSprite: Not just for XNA games any more Bill Reiss has a new version of SilverSprite up on CodePlex and if you're planning on doing any game development, you should check this out for sure Space Rocks game step 1: The game loop Bill Reiss has a tutorial series on Game development that he's beginning ... looks like a good thing to jump in on and play along. This first one is all about the game loop. Space Rocks game step 2: Sprites (part 1) In Part 2, Bill Reiss begins a series on Sprites in game development and positioning it. Space Rocks game step 3: Sprites (part 2) Bill Reiss's Part 3 is a follow-on tutorial on Sprites and moving according to velocity... fun stuff :) Adventures while building a Silverlight Enterprise application part No. 32 Jonathan van de Veen is discussing debugging and the evil you can get yourself wrapped up in... his scenario is definitely one to remember. Streaming Silverlight media from a Dropbox.com account Read the comments and the agreements, but I think Walt Ritscher's idea of using DropBox to serve up Streaming media is pretty cool! UniformGrid for Silverlight Jobi Joy wanted a UniformGrid like he's familiar with in WPF. Not finding one in the SDK or Toolkit, he converted the WPF one to Silverlight .. all good for you and me :) How to Get Started in WPF or Silverlight: A Learning Path for New Developers Pete Brown has a nice post up describing resources, tutorials, blogs, and books for devs just getting into Silveright or WPF, and thanks for the shoutout, Pete! Silverlight 4, MEF and the DeploymentCatalog ( again :-) ) Mike Taulty is revisiting the DeploymentCatalog to wrap it up in a class like he did the PackageCatalog previously MVVM with Prism 101 – Part 6b: Wrapping IClientChannel Mark Miller is back with a Part 6b on MVVM with Prism, and is answering some questions from the previous post and states his case against the client service proxy. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    MIX10

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• Le PDG de Netgear s'en prend à Apple et à « l'égo » de Steve Job et trouve que Windows Phone 7 est « Game Over »

  Le PDG de Netgear s'en prend à Apple et à « l'égo » de Steve Job Et trouve que Windows Phone 7 n'a aucune chance Apple, dont l'écosystème fermé suscite les critiques de cetains, s'est vu très vertement critiqué par Patrick Lo, le PDG de Netgear, qui s'en est également pris à la personnalité de Steve Jobs et à Microsoft. Interrogé par le Sidney Morning Herald, Lo a ainsi critiqué la décision de Steve Jobs dans l'affaire Flash - iOS « Quelle raison a-t-il de s'en prendre à Flash ? ». Un point de vue qui est partagé par d'autres. Mais Lo a sa propre explication : « Il n'y a aucune autre raison que son égo ». Lo trouve aussi critiquable la décision d'Apple de cent...

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• Unity3d generating a file in iOS and saving it on a linux machine

  - by N0xus

  I've done a little research and don't know if the following is possible. At the moment I have created a small application in Unity that generates an XML file. This file will be used to help set up my game. It's done in Unity due to it being cross platform with no need to re-write a single line of code. Eventually this will run on an iPad. However, my game will be running on a linux computer and I need to pass over the XML file to the computer that will be running the final game (please don't ask why I'm doing that, it's something I need to do). So what I want to know is the following: Can I generate my XML file on an iPad and have that XML file be saved, and transmitted to a linux machine, without the need to manually copy the file over. If so, how is this possible?

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• Pyglet vs. PyQt

  - by L. De Leo

  I need to implement a really simple card game. As the game logic is written in Python I chose to stick with some Python framework even if my goal is to develop a Windows only version. I also don't like to work with .NET so I ruled out Iron Python + WPF. I tried to write a simple prototype with Pyglet but soon discovered that I will have to do a lot of stuff by hand: things like detecting mouseover events and finding which card was clicked on and moving it, etc... very low level and unnecessary for my use-case. So I thought it might be easier to do things in PyQt. Do you reckon it would be feasible to use PyQt for implementing a simple card game? Will I have higher level events I can work with?

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• P2P synchronization: can a player update fields of other players?

  - by CherryQu

  I know that synchronization is a huge topic, so I have minimized the problem to this example case. Let's say, Alice and Bob are playing a P2P game, fighting against each other. If Alice hits Bob, how should I do the network component to make Bob's HP decrease? I can think of two approaches: Alice perform a Bob.HP--, then send Bob's reduced HP to Bob. Alice send a "I just hit Bob" signal to Bob. Bob checks it, and reduce its own HP, then send his new HP to everyone including Alice. I think the second approach is better because I don't think a player in a P2P game should be able to modify other players' private fields. Otherwise cheating would be too easy, right? My philosophy is that in a P2P game especially, a player's attributes and all attributes of its belonging objects should only be updated by the player himself. However, I can't prove that this is right. Could someone give me some evidence? Thanks :)

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• Can you set up a gaming LAN using OpenVPN installed in a VMware guest OS and be playing the game on the host OS?

  - by Coder

  I would like to setup a gaming VPN. Ie. I have some games that work over LAN and would like to play them with people that are not on my LAN. I know I can do this with OpenVPN. My ultimate goal would be to run OpenVPN portably on my host OS and not even need any virtualization. As such i don't want to install it on my host, but i'm fine with running it portably. I'm even fine with temporarily adding registry keys, and then running a .reg file to remove these entries once i'm done. To this effect i have installed OpenVPN on a virtual machine and diffed the registry. I then manually (using a .reg file) added all the keys that seem important on my host OS and copied the installation folder of OpenVPN onto my host machine. Then i try to run openVPN GUI 1.0.3 as a test and it says "Error opening registy for reading (HKLM\SOFTWARE\OpenVPN). OpenVPN is probably not installed". I verified that that key is indeed in the registry with all subkeys and it looks correct. I have tried running the GUI as an administrator and in compatibility mode with no success. I am running Windows 7. If this fails then i would be happy with installing OpenVPN on a virtual machine in VMWare but they key is that i will be running the game installed on my host machine. The first question for this option is if this is even possible. The second is, that I can't get the VM to have internet access if I use bridging but i can if i use NAT. Is it possible to do this game VPN setup with VMWare guest OS running using NAT? Summary of questions: -Is it possible to run openVPN portably and if so what did i miss above? -If it's not possible to run it portably, then can setup a gaming LAN by installing OpenVPN in a guest OS with NAT and how can i do this? -If the above is not possible then can i install OpenVPN in a guest using bridging and if so how can i set this up with a Windows 7 host and Windows XP guest as currently i can't get the guest to be able to access the internet in bridging mode, but it working in NAT mode. -In general is there any good documentation on setting up a gaming LAN with OpenVPN (i am using 2.1.4) as i have never set up a VPN of any sort before so any help would be much appreciated. Thanks!

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• Box2d too much for Circle/Circle collision detection?

  - by Joey Green

  I'm using cocos2d to program a game and am using box2d for collision detection. Everything in my game is a circle and for some reason I'm having a problem with some times things are not being detected as a collision when they should be. I'm thinking of rolling up my own collision detection since I don't think it would be too hard. Questions are: Would this approach work for collision detection between circles? a. get radius of circle A and circle B. b. get distance of the center of circle A and circle B c. if the distance is greater than or equal to the sum of circle A radius and circle B radius then we have a hit Should box2d be used for such simple collision detection? There are no physics in this game.

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• Choosing 3D modeling software Maya or 3D max?

  - by Kenneth J

  I've am a developer whose has spent most of my programming life developing web and business applications. I want to try my hand at something more challenging (but stay in the comfort of Visual Studio) ...perhaps XNA. Want 3D modeling software would be best for someone developing XNA? I have played with 3d MAX and Maya but never really did anything too involved. What are the pros and cons between them (in terms of game development)? Does one win out over the other for game development? Or is it pretty much just preference? I am new to game development and just trying to figure out the best tools to use before I really started. Any advice or other suggections would be greatly appreciated.

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• Scripting a sophisticated RTS AI with Lua

  - by T. Webster

  I'm planning to develop a somewhat sophisticated RTS AI (eg see BWAPI). have experience programming, but none in game development, so it seems easiest to start by scripting the AI of an existing game I've played, Warhammer 40k: Dawn of War (2004). As far as I can tell, the game AI is scripted with some variant of Lua (by the file extension .ai or .scar). The online documentation is sparse and the community isn't active anymore. I'd like to get some idea of the difficulty of this undertaking. Is it practical with a scripting language like Lua to develop a RTS AI that includes FSMs, decision trees, case-based reasoning, and transposition tables? If someone has any experience scripting Dawn of War, that would also help.

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• Beginners' Guide to Development

  - by Bombillazo

  Hello. So I have some experience programming in Java, and at the moment I am learning how to use Python. I have read on the process of game design and such. I also have media covered, got experience with graphics and audio. My question is geared more towards the actual tools to use for making games, developing. I am willing to commit to a long term development cycle, as I will be doing this as a hobby. I've heard of Flash, Gamemaker, etc. I don't intend to create my own Game Engine, so I was looking for a platform that is extensible and easy to program with an OOP mind frame. As a plus it would be great of said game could be played directly from a website. TIA!

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• Questions about an Engine Java

  - by CJ Sculti

  so I am going to start developing Java games (3D) but I have a few questions. So I dont know if I should use an engine or make my own. I feel like I am "cheating" if I use an engine to make my game. Is it frowned upon in the game developing world? What are some advantages and disadvantages to using an engine for my game and is it really that much harder to make my own engine? I know that engines have built in models and textures with easy drag and drop interfaces, would I have any of that if I were to code my own engine? Thanks guys.

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• Python or C server hosting for indie development

  - by Richard Fabian

  I've written a lot of the game, but it's singleplayer. Now we want to join up and play together. I want to host it like an MMO, but haven't got any personal ability to host (no static IPs or direct access to a reasonable router that will allow me to port forward) so I wondered if there were any free / very cheap hosting solutions for people developing games that need to develop their MMO side. In my case it's a world server for a 2D game where the world map can be changed by the players. So, GAE sounds expensive, as there would be quite a few updates per second (I heard they bill for data updates but not for download, but can't find refernce to billing anywhere on the FAQs) I'd prefer to be able to write the server in python as that's what the game is written in (with pygame), but C is fine, and maybe even better as it might prompt me to write some more performant world generator code ;)

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• How to work around a possible XNA Game Studio or Windows Phone SDK install failure on Windows 8

  - by Laurent Bugnion

  I am not sure if you guys know Aaron Stebner. Aaron works at Microsoft, and has pulled thorns from my side many many times already. His blog is at http://blogs.msdn.com/b/astebner and it is a gold mine of tips and tricks to debug and solve many cryptic issues happening during installation and removal of programs. For example, Aaron taught me how to remove programs that do not appear in the Programs and Features list, amongst many other things. The last nugget I used from Aaron’s blog saved my butt just before a presentation where I had to run both Visual Studio 10 with the Windows Phone SDK, and Visual Studio 11 for WinRT development. Of course this had to be on Windows 8. Unfortunately when you install the Windows Phone SDK on Windows 8, you may (or may not, I saw both scenarios) encounter an issue with XNA, and the installation fails. Unfortunately, even if you don’t use XNA in your apps, this will prevent even normal Windows Phone app development. Fortunately, Aaron has a fix for that. I hope that this helps spread the word, and increase Aaron’s blog’s visibility! Happy coding, Laurent   Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

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• Using model tools as map editor

  - by cooky451

  I want to make a game which would require a 3D map editor. Of course, I would like to avoid creating such an editor. My idea is now to use modeling tools (3DS Max, Maya, Blender) to create the map, and to give game specific objects specified names. This way I'd just need to write an COLLADA - native map format converter. But I'm not sure if this is possible the way I imagine it, that's why I'd like to hear your thoughts on the matter. Are modeling tools suitable to create big open world maps? Can this "naming convention"-idea for game specific objects work? Are the modeling tools able to export a scene in chunks / in a way that occlusion culling and collision detection can be properly done? If not: Is there a way to build a suitable data structure from the exported data?

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• Entity Component System, weapon

  - by Heorhiy

  I'm new to game programming and currently trying to understand Entity Component System design by implementing simple 2d game. By ECS I mean design, described here for example In my game I have different kind of weapons: automatic, gun, grenade, etc... Each type of weapon has it's own affect area (gun shots along the straight line and grenade explodes and covers some spherical area) , damage impact, visual effect and bullet amount, delay between shots. So I don't completely understand how to implement weapons. Should weapon be an Entity or it should be a component? And how the player should pick up a weapon, switch between different types of weapons and etc.

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