Monthly Archives: April 2013

A Conversation Engine for A Video Game in JavaScript

The JavaScript code given below implements a simple conversation “tree” such as might be used in a video game. To see the code in action, copy it into an .html file and open that file in a web browser that … Continue reading

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A Simple Top-Down Space Game in JavaScript

The code given below implements a simple top-down space game in JavaScript. The code is adapted from that given for an even simpler game described in an earlier post. Use the W key to accelerate and the A and D … Continue reading

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A Simple Game Inventory Manager In JavaScript

The JavaScript code below implements a simple inventory system for a video game. To see it in action, copy it into an .html file and open that file in a web browser that runs JavaScript. UPDATE 2015/02/25 – I have … Continue reading

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A Simple Turn-Based Game Loop in JavaScript

The JavaScript code below implements a turn-based version of a simple game from a previous post. The goal is to navigate through the “maze”, go through the door, grab the elixir, and return it to the gravestone back at the … Continue reading

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A Minesweeper Clone in JavaScript

The JavaScript code below implements a simple clone of the classic Windows game Minesweeper. To see it in action, copy it into an .html file, and open that file in a web browser that runs JavaScript. Or you can play … Continue reading

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Downloading Web Pages Using WGet

1. Download and install WGet. WGet is a command-line tool that allows users to non-interactively download remote files from a network. As of this writing, the latest versions of the Windows installer can be found at the URL “http://gnuwin32.sourceforge.net/packages/wget.htm“. 2. … Continue reading

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A Simple Spreadsheet in JavaScript

The code shown below implements a simple spreadsheet in JavaScript. To see it in action, copy it into an .html file and open that file in a web browser that runs JavaScript. As of this writing, the spreadsheet only fully … Continue reading

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A Wraparound Game Playfield in JavaScript

The JavaScript code shown below will render a game playfield in which bodies wrap around to the left when they exit to the right, and around to the top when they exit from the bottom, and vice versa. The camera … Continue reading

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Parallax Scrolling of Background Images in JavaScript

The code shown below implements animated parallax scrolling of three different levels in JavaScript. To see the code in action, copy it into an .html file and open that file in a web browser that runs JavaScript. You’ll also need … Continue reading

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A Simple Control Framework in JavaScript

The JavaScript code shown below declaratively creates a bunch of controls, converts them to DOM elements, and displays them. The displayed controls prompt the user for his or her name. The user may then click a button to receive a … Continue reading

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