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Facebook Graph API: Authenticating In IFrame Applications
November 22, 2010

The latest Facebook API, dubbed Open Graph API , is a powerful replacement to the old API. However, the documentation (in particular regarding authentication) is not very clear. Hopefully this will help you get up to speed with what it takes to authenticate users. This tutorial assumes that you have already setup your application on […]

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HTML
HTML5: Animation With Canvas
November 14, 2010

This is a general outline of how to utilize HTML5 Canvas to do animation using the traditional cell-animations, aka: image-strips. Here’s the image that I am using for this example; as you can see, it consists of 8 frames of equal width. It’s an animation of someone walking, shows in a top-down view. To draw […]

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HTML
HTML5: Saving Canvas Image Data Using PHP And Ajax
October 30, 2010

In this tutorial, we will demonstrate methods of saving the content of a HTML5 Canvas object using server side scripting. PHP will be used in this example, but the technique can be applied in other languages as well. This post requires understanding of Javascript, HTML (especially forms and/or AJAX). PHP is used in the example […]

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Blog
Google Chrome: Developer Friendly, No Java Support On Mac (Yet)
April 1, 2010

Chrome is shaping up to be the best browser around.  It’s fast and it is developer-friendly, with its own Firebug-like tools.  Under View->Developer->Developer Tools you can find the goodie. See below for screenshot. The Element inspector can be accessed with the Magnfying Glass icon on the bottom, and then you can hover your mouse to […]

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HTML
Dashcode Invader: Using Dashcode To Create A Game – Part 2
March 21, 2010

Continuing from: https://permadi.com/blog/2009/05/dashcode-invader-using-dashcode-to-create-a-game/ Base class for the objects in the game. Let’s consider what objects will be in our game. I can think of three-types: Player ship Enemy ship Bullet These objects have in commons these charateristics: They all have positions. They all can move (needs speed variable). Let’s call the base class GameObject from […]

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General
HTML5: Text Rendering Overview
March 20, 2010

Here are some samples and brief explanation of HTML5 Canvas text related functions. A HTML5 compliant browser (such as Firefox 3.5) is required in order for the examples to work. Basic Text   Use strokeText or fillText, both takes x, y and maximumWidth. The colors are determined by the fillStyle and strokeStyle <script language=”JavaScript”> function […]

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HTML
Running / Testing Multiple IE (Internet Explorer) Versions On The Same Machine
October 20, 2009

As web developers, it is crucial to test on various browsers. A common problem is testing multiple Internet Explorer versions on the same Windows system, since Internet Explorer overwrites previous version during upgrade.  Follow this links that explains how to install multiple versions: http://tredosoft.com/Multiple_IE http://labs.insert-title.com/Multiple-IEs-in-Windows_article795.aspx There is also a free software named IETester, from http://www.my-debugbar.com/wiki/IETester/HomePage […]

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General
Using Embed IFrame To Add Frames Into WordPress Posts
June 7, 2009

If you use WordPress (I am using 2.7), you may have experienced the WordPress formatting quirks and annoyances.  It is annoying it is to include JavaScript or Flash into WordPress posts. The code you entered kept getting reformatted, even when using html editing mode. Plus, when using the build-in uploader, the Javascript and SWF filenames […]

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HTML
Dashcode Invader: Using Dashcode To Create A Game
May 29, 2009

In this tutorial, we will continue building a simple space-invader type game. We will be continuing from the tutorial presented in Part1 at https://permadi.com/blog/?p=1131; however, we are making some major changes, and I’ll explain why. The first change has to do with restructuring the CSS code so that most of the objects within the game […]

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General
Introduction To Dashcode: Creating iPhone Animation And Interactivity
May 21, 2009

Dashcode is another tool that comes with Apple iPhone SDK.  It allows you to create simple applications.  You can read an introduction to Apple’s Dashcode here.  In this tutorial, we will demonstrate interactivity and animation.  Familiarity with JavaScript and CSS is assumed. Our example will be a framework for a space-invader type game.  There will […]

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