This is a html5/javascript particles test using the Phaser framework.
The goal is to create a burst of particles in the form of a circle, by setting the x and y speeds of indivual particles.
For more info see:
http://phaser.io/
http://www.html5gamedevs.com/forum/14-phaser/
Also posted this on html5gamedevs forum:
http://www.html5gamedevs.com/topic/8305-emitter-burst-of-particles-in-form-of-a-circle/
questions, comments: bdr1976@gmail.com