javascript Archives - BinaryTides

How to make a Distance Joint in Box2D in Javascript

Silver Moon — Mon, 07 Jan 2013 10:12:37 +0000

Distance In the previous post on mouse joints we learned how to interact with box2d objects using the mouse. Now its time to take a look at another joint in box2d, the distance joint. Distance joint connects 2 bodies maintaining a fixed distance between them, its like metal wire connecting the 2 bodies, such that... Read More »

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Playing with the mouse joint in box2d in javascript

Silver Moon — Sun, 06 Jan 2013 13:32:44 +0000

Mouse Joint Out of the many joints that box2d has, one is mouse joint. It is not used in physics simulations, but helps to make the physics world interactive by making a body move towards a specific point, like the mouse coordinates for example. So objects can be picked up, dragged etc by the user.... Read More »

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Add custom functions to the html5 audio element for better functionality

Silver Moon — Tue, 01 Jan 2013 11:57:53 +0000

Html5 Audio The html5 audio element provides a simple api to play sound files like mp3, ogg, wav etc. It can be created by putting an audio tag in the html or by creating an instance of the Audio object in javascript. Here is a quick example of using it from within javascript code. var... Read More »

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Add a stop function to the html5 audio element

Silver Moon — Mon, 31 Dec 2012 12:06:06 +0000

The Audio element of html5 does not yet have a stop function, but has a pause function. So here is a simple trick to add a stop function to your Audio elements by modifying the prototoype of the class. //Give the Audio element a stop function HTMLAudioElement.prototype.stop = function() { this.pause(); this.currentTime = 0.0; }... Read More »

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Using the html5 audio element from javascript

Silver Moon — Fri, 28 Dec 2012 10:33:30 +0000

Sometime back I was making a browser based game in the html5 canvas tag which had some audio too. The html5 audio tag is an easy option to add sound/music to any webpage. It can play variety of formats like wav, ogg and mp3. However format support itself varies across browsers. The audio element can... Read More »

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Make a simple html5 game with box2d in javascript – tutorial

Silver Moon — Mon, 17 Dec 2012 04:37:43 +0000

Demo First lets play the game that we shall be making in this tutorial. Its called Fruit Hunter. Tested on Chrome and Firefox. Click in the game then start using the arrow keys to control the monkey. Press the left, right and up arrow keys to make the monkey move and jump. Do not fall... Read More »

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Validate file upload with html5 file api

Silver Moon — Tue, 06 Dec 2011 14:08:27 +0000

The html5 file api provides lots of new features which can be used to read files on clientside from within the browser. Lets take a look at this Demo first : This file upload control will only take zip or png files which are less than 1MB in size. For any other files it will... Read More »

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Programming box2d in javascript – tutorial on basics

Silver Moon — Fri, 21 Oct 2011 14:55:09 +0000

Box2d Box2d is a 2d physics simulation library written for C++ and ported to many languages including Javascript. From Box2d's Website Box2D is a feature rich 2D rigid body physics engine, written in C++ by Erin Catto. It has been used in many games, including Crayon Physics Deluxe, winner of the 2008 Independant Game Festival... Read More »

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