eBooks de Programación, página 4 de 40

Más de 250 millones de sitios web se han realizado en PHP, entre ellos algunos tan famosos como: Facebook.com, Yahoo INC, Wikipedia.org, Friendster.com, Digg.com, Sourceforge.org, Flickr.com, Meneame.net, etc. Y no unicamente lo utilizan las grandes webs sino que tambien es utilizado por CMS como WordPress y Drupal.Mediante PHP se puede incluso crear aplicaciones moviles para iOS, Android, Windows Phone y BlackBerry.Aprende y practica los conceptos mas avanzados de uno de los lenguajes de programacion mas importantes: acceso a bases de datos, phpMyAdmin, gestion de ficheros, creacion de imagenes y graficos, ficheros PDF, XML, servicios web, gestion de emails, Modelo Vista-Controlador, frameworks actuales, seguridad, gestion de errores, optimizacion, librerias externas, etc.La presente obra esta dirigida a estudiantes de todas las edades y a todas aquellas personas que tengan una inquietud por dominar las nuevas tecnologias.¡PHP es el lenguaje del presente y del futuro!

El propósito de este libro es introducirte en el lenguaje de las máquinas. Por estos días estáis rodeado de dispositivos intercomunicados que esperan que les digas qué hacer. Puedes utilizar aplicaciones como Facebook, Twitter o Skype, o puedes desarrollar tus propias aplicaciones. Toda tarea que realices y que seas capaz de expresar como un conjunto de instrucciones, puede ser realizada por una maquina, aprendiendo su lenguaje, empezaras a estar rodeado de rapidos, siempre dispuestos, y porque no felices servidores.Con esta meta enfocada este escrito aborda en su contenido paso por paso, el desarrollo de capacidades para la busqueda e implementacion de algoritmos, entendiendose como algoritmo al conjunto de instrucciones para la realizacion de una tarea. Estas instrucciones deben estar escritas en un lenguaje que la maquina pueda entender. Si bien para la implementacion de los algoritmos se utiliza el lenguaje Python, los conceptos tratados te seran utiles para cualquier otro lenguaje. Python es un lenguaje simple, moderno y potente creado por un ex trabajador de Google y ampliamente utilizado en exitosas aplicaciones a nivel global.

C++ es un lenguaje de programación diseñado por Bjarne Stroustrup y puesto a disposición de los desarrolladores allá por 1985. La intención de su creador fue extender el exitoso lenguaje de programacion C con mecanismos que permitieran la programacion orientada a objetos. En ese sentido, y desde un punto de vista de los lenguajes orientados a objetos, C++ es un lenguaje hibrido.Esto es, C++ fue desarrollado a partir del lenguaje de programacion C y con pocas excepciones incluye a C. Esta parte de C podria compilarse bajo C++ sin problemas, actualmente es uno de los lenguajes de programacion mas populares para el desarrollo de aplicaciones de proposito general. Como muchos otros lenguajes, permite trabajar con todo tipo de datos, crear estructuras de datos, trabajar con ficheros, manipular excepciones, etc. Mas aun, C++ es un lenguaje que favorece la programacion estructurada y permite el desarrollo de aplicaciones orientadas a objetos.

Android es el principal sistema operativo del mercado y el que utilizan la mayoría de los fabricantes en el desarrollo desus productos. Esto permite a los fabricantes de dispositivos centrarse en mejorar las funcionalidades de estosdispositivos y diferenciarse del resto. En 100 ejercicios reunimos los aspectos mas destacados de la programacion conAndroid para que tenga una pequeña guia a la hora de acometer un desarrollo partiendo desde cero. El libro puedeinteresar tanto a curiosos que deseen introducirse en la materia como a desarrolladores ya iniciados que quierandisponer de un recordatorio para programar determinadas funcionalidades en Android.Este libro ayudara al lector a programar sus primeras apps. Las puede ejecutar en su dispositivo o publicarlas en GooglePlay, para que otros usuarios puedan instalarlas en su terminal.Con este libro:. Se introducira en la programacion con Android y conocera los elementos basicos para el desarrollo de una aplicacion.. Aprendera a instalar el entorno de desarrollo y a conocerlo para poder desarrollar una aplicacion, depurarla, ejecutarlaen un emulador e instalarla en un dispositivo fisico.. Conocera los distintos elementos graficos de la interfaz de usuario y como estos pueden mostrarse en diferentesterminales con distintos tamaños.. Podra fabricar diversas aplicaciones que cubren la mayoria de aspectos que encontramos en nuestros dispositivosmoviles: desde la configuracion hasta la publicacion de una app en Google, pasando por el tratamiento de multimedia,persistencia de datos, Material Design, animaciones, sensores, notificaciones, etc.. Trabajara con Google Maps y temas como geolocalizacion y mapas, asi como el uso de la API de Google Places.. Empleara el nuevo sistema de notificaciones Push de Google Firebase, y la plataforma publicitaria de Google AdMob,para monetizar la aplicacion.Enlaces para el material complementario dell libro:http://marcombo.info/documents/?c=android00http://marcombo.info/documents/?c=android01http://marcombo.info/documents/?c=android02

jQuery es una biblioteca creada con JavaScript que permite simplificar el desarrollo de animaciones e interacciones con HTML, facilitando el acceso a la estructura interna de un documento. Se basa en la manipulacion del DOM y en el manejo de eventos asociados a los elementos que contiene la misma. Con este manual aprendera a trabajar con una biblioteca que:Es software libre y, como tal, goza de una gran difusion y popularidad en la comunidad de desarrolladores de paginas web. Permite el uso de widgets como el acordeon, gestion de fechas, etc., que aportan una gran vistosidad y dinamismo a las paginas web de forma sencilla. Es compatible con la inmensa mayoria de navegadores (esa es parte de su potencia).Incorpora un gran numero de metodos para trabajar con AJAX.

Este libro es el primero que aparece con la marca Coder Dojo, y está directamente enfocado a que los lectores aprendan a programar su propia página web. Propone un método fácil, pensado para los niños sin conocimientos de programacion, conciso, intuitivo y colaborativo. De la mano de los nanonautas, personajes que protagonizan el libro, los niños descubriran los secretos del HTML y el CSS, los dos lenguajes de programacion para web mas extendidos en todo el mundo. "Aprende a programar" ha sido un autentico exito en el mundo anglosajon y ahora empieza su andadura en los distintos paises que cuentan con clubs Coder Dojo.

En este manual dedicado a Illustrator CS5, el conocido programa de dibujo y diseño vectorial de la compañía Adobe, se estudia en profundidad el uso de prácticamente todos los comandos de esta aplicacion para dibujar y conseguir ilustraciones realmente originales. Mediante sencillos y a la vez elaborados ejemplos que el alumno desarrollara de principio a fin se describen detalladamente las herramientas del programa. Esta ultima version de Illustrator presenta varias novedades y un gran numero de mejoras, consiguiendo, una vez mas, la complicidad entre el usuario y la aplicacion gracias a un uso cada vez mas intuitivo y al alcance de practicamente todos. Illustrator se utiliza tanto en el sector domestico como en el sector profesional. Las novedades que contiene la version CS5 de esta aplicacion son realmente extraordinarias, como la nueva funcion para poder dibujar en perspectiva o la nueva herramienta Creador de formas; el programa tambien presenta un gran numero de mejoras, asi como nuevos paneles que facilitan el trabajo al usuario. Illustrator mantiene toda la precision en sus herramientas que permiten convertir rapidamente sus ideas en resultados increibles. El trabajo con capas y las mesas de trabajo permite modificar las ilustraciones sin miedo a modificar otras partes de la ilustracion. Con el sinfin de efectos que el programa pone a su disposicion conseguira ilustraciones realmente increibles. Garantizamos que si el lector realiza correctamente todos los ejercicios que componen los 18 apartados de este volumen, se convertira en un experto en creacion de ilustraciones y podra aplicar los conocimientos avanzados adquiridos sobre sus propias creaciones personales o profesionales, aprovechando asi al maximo las principales utilidades que ofrece el programa. Este libro pertenece a la Coleccion Manuales que ofrece cursos practicos de los mas importantes programas del sector informatico dirigidos tanto a usuarios noveles como a usuarios que trabajan habitualmente con esos programas y desean ampliar sus conocimientos.

When you roll a critical hit in an RPG or a rare item drops from an enemy, you feel lucky. But in the world of computing, true randomness does not exist. Computers are purely deterministic machines incapable of spontaneity. Instead, they rely on Random Number Generation (RNG)complex mathematical formulas that simulate chance based on a starting "seed," such as the consoles internal clock or the exact frame the player presses a button.For elite gamers and speedrunners, luck is highly exploitable. By meticulously analyzing the RAM and the exact frame data of classic games like Pokemon or Final Fantasy, players can perfectly predict and manipulate these hidden algorithms. They perform seemingly bizarre actions in-gamelike walking in a specific pattern or opening menus a set number of timesto advance the RNG value, guaranteeing the exact drop or enemy encounter they need on demand.This technical guide exposes the illusion of digital chance. It breaks down the intricate mathematics of pseudo-randomness and how understanding deterministic logic turns a chaotic video game into a perfectly predictable spreadsheet.Stop leaving your digital victories to fate. Learn the mathematical architecture of chance, and discover how to weaponize probability by hacking the hidden clockwork of your favorite games.

For decades, playing fast-paced fighting games over the internet was a miserable experience. The traditional delay-based netcode waited for both players signals to arrive before updating the screen, resulting in sluggish controls and underwater physics that ruined competitive play. Then came a revolution built on predictive mathematics and millisecond time travel: Rollback Netcode.This technical dive into video game engineering explains the brilliant software architecture that saved online fighting games. Instead of waiting for data, rollback netcode instantly guesses what the opponent will do next. If the guess is wrong, the game physically rewinds reality, corrects the error, and fast-forwards back to the presentall within a fraction of a second, completely invisible to the human eye.Discover the grassroots developers who fought massive Japanese studios to implement this technology and how it transformed esports during global lockdowns. It is a thrilling look at how programmers manipulate human perception and warp virtual time to create the perfect illusion of zero latency.

When "Middle-earth: Shadow of Mordor" released, it introduced a revolutionary feature: the Nemesis System. Enemies remembered you, bore physical scars from previous encounters, and climbed their own military ranks. It was a masterpiece of procedural storytelling. But instead of this mechanic becoming the new standard for the gaming industry, it vanished. Why? Because Warner Bros. successfully patented it, locking a brilliant design concept behind a legal wall.This book exposes the controversial world of software patents and intellectual property within the video game industry. It explores the dangerous precedent set by patenting game mechanicsa practice that threatens to stifle indie developers and halt medium-wide innovation. What happens when a corporation can legally own the concept of a loading screen mini-game, a dialogue wheel, or a dynamic enemy hierarchy?Dive into the corporate strategy and legal warfare that dictate how games are made. You will understand the delicate balance between protecting a creators financial investment and destroying the iterative, shared language of game design that built the industry in the first place.

In the early 1990s, home computers lacked the processing power to render true, three-dimensional worlds. Yet, games like Wolfenstein 3D and Doom managed to create incredibly fast, immersive 3D environments that ran flawlessly on basic hardware. The secret was not a hardware revolution, but a brilliant mathematical optical illusion programmed by John Carmack: Raycasting.This technical history book breaks down the elegant algorithms behind the Doom engine. It explains how raycasting works by projecting invisible lines from the players viewpoint across a 2D grid, calculating distances, and drawing vertical slices of textures to fake depth and perspective. The narrative celebrates the era of extreme software optimization, where developers had to use profound mathematical shortcuts to bypass hardware limitations.Step into the brilliant code that defined a generation of gaming. Discover how a single mathematical trick tricked our brains into seeing 3D, birthed the first-person shooter genre, and laid the algorithmic foundation for the entire modern video game industry.

A Série Universitária foi desenvolvida pelo Senac São Paulo com o intuito de preparar profissionais para o mercado de trabalho. Os títulos abrangem diversas áreas, abordando desde conhecimentos teóri

Before the advent of true 3D polygons, video game developers faced a monumental visual challenge: how do you make a completely flat, two-dimensional screen feel like a living, breathing, infinite world? The solution was not a hardware upgrade, but a brilliant hack of human visual perception.By moving different layers of background images at slightly different speedsa technique known as parallax scrollingprogrammers tricked the human eye into perceiving deep spatial depth where none existed. Slower-moving mountains in the back and fast-moving ground in the front created an incredibly immersive illusion of speed and scale. What began as a desperate technical workaround to bypass hardware limitations quickly evolved into the defining aesthetic of the 16-bit golden age.This book unpacks the ingenious mathematics and artistry behind early game rendering. It explores how legendary studios meticulously hand-painted scrolling layers to simulate complex camera movements, and how this specific technical restriction birthed a beloved visual style that modern indie developers are still desperately trying to replicate today.Revisit the visual magic of your childhood through the lens of technical mastery. Understand the exact optical illusions that made classic platformers feel alive, and appreciate the immense engineering required to fake a three-dimensional world on a two-dimensional grid.

You are watching a breathtaking, heavily scripted cinematic cutscene. Your character is dodging explosions and leaping across a crumbling bridge. Suddenly, a giant "X" flashes on the screen. You fumble for the controller, miss the button, and watch your hero unceremoniously fall to their doom. The immersion is instantly shattered.The Quick Time Event (QTE) is one of the most polarizing mechanics in video game history. Popularized by Shenmue and utilized heavily by blockbuster titles like God of War, QTEs were originally designed to bridge the gap between passive cinematic storytelling and active gameplay. However, they often achieve the exact opposite. By forcing players to stare intensely at the center of the screen waiting for a prompt, the developer essentially blinds the player to the beautiful, expensive animations happening in the background.This design critique explores the controversial history and psychology of the QTE. It examines why developers rely on them to choreograph impossible action sequences, how they create an artificial illusion of player agency, and why the modern gaming industry is slowly trying to phase them out.Dive into the friction between gameplay and narrative. Understand how the desperate attempt to make video games look like Hollywood movies resulted in a mechanic that fundamentally misunderstands what makes playing a game fun.

In intense action games, from classic platformers to punishing modern RPGs like Dark Souls, surviving a massive enemy attack often relies on a deeply counterintuitive maneuver: rolling directly into the swinging sword. Visually, the blade passes right through the characters body, yet no damage is taken.This is the magic of the "Invincibility Frame" (I-Frame). Developers realized early on that pixel-perfect evasion was impossible for human reflexes. To make combat challenging but fair, they hard-coded a mathematical grace period. During specific frames of a dodge animationoften lasting mere fractions of a secondthe game engine temporarily turns off the players hitbox, making them completely immune to the physics of the virtual world.This book breaks down the extreme mathematics of action combat design. You will explore how fighting games balance risk and reward down to a 1/60th of a second, why removing I-Frames turns a fun challenge into a frustrating chore, and how elite speedrunners exploit these mathematical gaps to literally walk through solid walls of fire.Master the invisible math of your favorite games. By understanding the precise engineering of Invincibility Frames, you will see digital combat not as a test of reflexes, but as a high-speed rhythm puzzle.

The modern open-world video game is a marvel of digital architecture, boasting hundreds of square miles of meticulously crafted terrain. Yet, as these worlds have grown exponentially larger, developers have increasingly relied on a mechanic that entirely bypasses this achievement: fast travel.The paradox of fast travel is a severe conflict in game design. While players demand the convenience of teleportation to avoid tedious backtracking, implementing it shatters immersion and destroys the spatial relationship between the player and the environment. When the journey is eliminated, the vast landscape is reduced to a mere menu screen of disjointed points of interest, sacrificing spontaneous discovery for ruthless efficiency.This book investigates the complex psychology and spatial mechanics of virtual teleportation. You will learn how legendary games balance the necessity of fast travel with the joy of exploration, how the placement of transit hubs dictates player behavior, and why removing convenience often results in a vastly superior, memorable experience.Rethink how you traverse digital worlds. By understanding the friction of exploration, game designers and players alike can rediscover the lost art of the journey in the age of instant gratification.

When you land a critical hit in an RPG or draw the perfect card in a digital deckbuilder, it feels like a stroke of sheer luck. But behind the scenes, the games Random Number Generator (RNG) is constantly lying to you. True randomness is profoundly frustrating, so game developers actively cheat to make you feel lucky.The Illusion of RNG is a cornerstone of modern game balancing. Humans are terrible at understanding statistics; if an action has a 90% chance to succeed and fails twice in a row, players feel cheated. To prevent rage-quitting, designers implement "pseudo-random distribution," manipulating the invisible dice rolls in the background. Pity timers guarantee rare loot, and missed shots secretly increase the accuracy of your next attempt.This book exposes the psychological math underlying virtual chance. It examines how games manage player frustration, balance difficulty through hidden statistical bumpers, and engineer the perfect cadence of risk and reward.Peek behind the digital curtain of probability. Understand how algorithms protect your ego by manipulating chance, and why true randomness is the enemy of a good time.

A Série Universitária foi desenvolvida pelo Senac São Paulo com o intuito de preparar profissionais para o mercado de trabalho. Os títulos abrangem diversas áreas, abordando desde conhecimentos teóri

Every gamer knows the feeling of dread: the mission objective shifts, and suddenly you are forced to protect a fragile, excruciatingly slow non-player character (NPC) as they wander blindly through a warzone. The "escort mission" is universally despised, yet developers have continued to force them into blockbuster games for decades.The Burden of the NPC explores the profound disconnect between ambitious game design and the stark limitations of artificial intelligence. Creating a companion that acts autonomously without ruining the players agency is a programming nightmare. To prevent the NPC from solving the puzzle for the player, designers must artificially lobotomize them, reducing their walking speed and eliminating their survival instincts, which turns an engaging adventure into a tedious babysitting job.This book dives into the complex math of pathfinding algorithms and navmeshes. It charts the evolution of the escort mission from infuriating retro cliches to modern triumphs like The Last of Us, explaining how developers finally learned to hide the invisible strings.Peer into the code of gamings greatest annoyance. Understand why teaching a computer to walk beside a human is the hardest problem in game development, and how bad AI completely shatters virtual immersion.

Ask any veteran gamer about their most frustrating memories, and they will inevitably mention the Water Temple from Ocarina of Time or the panic-inducing countdown music in Sonic the Hedgehog. Underwater levels are universally dreaded. But this widespread hatred is not a coincidence; it is the result of a profound neurological friction deliberately engineered by game developers.When a character enters the water, the fundamental physics of the virtual world change. Gravity is altered, movement becomes sluggish, and the carefully honed muscle memory the player has developed is instantly rendered useless. Add to this the introduction of a new, depleting resourceoxygenand you transform an exploratory game into a claustrophobic, high-stakes time management crisis. Developers use these zones to intentionally break the players sense of mastery and flow.This book dissects the controversial mechanics of aquatic game design. It explores why slowing down the player and restricting their agency is a dangerous but sometimes necessary tool for pacing, and how the best designers balance the absolute dread of drowning with the profound relief of finally breaking the surface.