Posts Tagged ‘video games’

jQuery Contra Plugin – Up, up, down, down, left, right, left, right, B, A, enter

jQuery Contra Plugin – Up, up, down, down, left, right, left, right, B, A, enter

Remember the code from Contra on original Nintendo? Up, up, down, down, left, right, left, right, B, A, start; it’s also known as the Konami Code and the 30 Lives Code.

This famous sequence of buttons from the 80′s isn’t going anywhere: in more recent times it’s been in a Moldy Peaches song, and used as an easter egg in Google Reader and Facebook, to name a few.

But I’m sure tons of great things can still be done with the code from Contra, so I built it into a simple jQuery plugin that can be easily used on any site.

The jQuery Contra Plugin allows you to call a function of your choice whenever a user enters the Konami Code (up, up, down, down, left, right, left, right, b, a, enter).

Download the Contra Plugin

Read the jQuery Contra docs

How to use … Read more…


jQuery Video Game Remake: T&C Surf

T&C Surf Designs

When I was seven, my all-time favorite video game was T&C Surf Designs for the 8-bit Nintendo® (NES). Feeling nostalgic this weekend, I developed a version of this old school game using jQuery and Javascript.

Up and Down to move, Left and Right to skate faster or slower, Spacebar to jump

After playing Javascript Mario Kart, I’ve been wanting to develop a classic video game with jQuery. T&C seemed like a good fit because its motion and overall simplicity are ideal for jQuery’s animation library (and it’s really fun).

I’m fairly pleased with the performance, which is vastly improved through the use of cell-based collision detection. Instead of having to check for collision every pixel, it can be checked every 32, with huge processing savings. Additionally, the use of CSS sprites greatly reduces the number of HTTP requests and the need to use … Read more…