Pixi Particles
A particle system library for the PixiJS library. Also, we created an interactive particle editor to design and preview custom particle emitters which utilitze PixiParticles.
##Sample Usage
Please see the examples for various pre-made particle configurations.
// Create a new emitter
var emitter = new cloudkid.Emitter(
// The DisplayObjectContainer to put the emitter in
// if using blend modes, it's important to put this
// on top of a bitmap, and not use the PIXI.Stage
container,
// The collection of particle images to use
[PIXI.Texture.fromImage('image.jpg')],
// Emitter configuration, edit this to change the look
// of the emitter
{
"alpha": {
"start": 0.8,
"end": 0.1
},
"scale": {
"start": 1,
"end": 0.3
},
"color": {
"start": "fb1010",
"end": "f5b830"
},
"speed": {
"start": 200,
"end": 100
},
"startRotation": {
"min": 0,
"max": 360
},
"rotationSpeed": {
"min": 0,
"max": 0
},
"lifetime": {
"min": 0.5,
"max": 0.5
},
"frequency": 0.008,
"emitterLifetime": 0.31,
"maxParticles": 1000,
"pos": {
"x": 0,
"y": 0
},
"addAtBack": false,
"spawnType": "circle",
"spawnCircle": {
"x": 0,
"y": 0,
"r": 10
}
}
);
// Calculate the current time
var elapsed = Date.now();
// Update function every frame
var update = function(){
// Update the next frame
requestAnimFrame(update);
var now = Date.now();
// The emitter requires the elapsed
// number of seconds since the last update
emitter.update((now - elapsed) * 0.001);
elapsed = now;
// Should re-render the PIXI Stage
// renderer.render(stage);
};
// Start emitting
emitter.emit = true;
// Start the update
update();
##Documentation##
http://cloudkidstudio.github.io/PixiParticles/
##Installation##
PixiParticles can be installed using Bower. While the Bower file specifies CloudKid's fork of PixiJS, the library should work fine with the official release of PixiJS.
bower install pixi-particles
##Use in Haxe##
Externs for Haxe have been added to adireddy's Pixi externs
##License##
Copyright (c) 2014 CloudKid
Released under the MIT License.