mandelbrot-worker.coffeecoffee/ | |
|---|---|
@licence This code is unlicenced. | |
A web worker to evaluate the mandelbrot function for a set of pixels. | "strict mode" |
We need MandelbrotCore to do the computations | self.importScripts 'libs/require.js' |
self.importScripts '../../js/mylibs/mandelbrot-core.js' | self.require [
"mandelbrot-core",
], (MandelbrotCore) -> |
Messages | |
Listener for messages from parent process | listener = (e) -> |
Callback to monitor progress | mandelbrot = new MandelbrotCore (progress) =>
message = JSON.stringify
message:"progress"
value:progress
this.postMessage message |
Unpack data from call | if e.data?
data = JSON.parse e.data |
Calculate escape times | escapeTimes = mandelbrot.getEscapeTimes data.width, data.height, data.box, data.maxIterations |
Build a message with the results | message = JSON.stringify
message:"success"
value:escapeTimes |
Send the success message back to the parent | this.postMessage message
|
Add the listener to the message event, do not | this.addEventListener 'message', listener, false
|