programming

The main loop is a core part of any application in which state changes over time. In games, the main loop is often called the game loop, and it is typically responsible for computing physics and AI as well as drawing the result on the screen. Unfortunately, the vast majority of main loops found online - especially those in JavaScript - are written incorrectly due to timing issues. I should know; I've written my fair share of bad ones. This post aims to show you why many main loops need to be fixed, and how to write a main loop correctly.

I recently wrote an API callback script that performed some heavy calculations and took a long time to return. To keep the user from having to wait, I wanted to have the script immediately return cached results and asynchronously process the calculations. There are a few partial solutions on the web but none of them properly deal with sites using HTTPS, so here's my solution:

Tim from Crowdcademy recently wrote about the ugly side of programming:

I've also discovered that learning to code can have a big impact on your personality. Coding uses a lot of thinking patterns that I hadn't really used since my math and statistics classes in college, and even back then not in this intensity. As a result I've become more focused, more logical and smarter. But I've also become more detached from everyday life and less fun to hang out with.