seed should not be global

[totty90]

you should instance a Noise and set the seed on that one.

[Hypercubed]

I agree with this... the module should really return a constructor so the seed can be set once per instance. Something like:

var myNoise = Noise(seed);
var z = myNoise.perlin2(x,y);

[BenMcLean]

Yeah, making this global is pretty ridiculous. There is no reason it should be global.

[370417]

I tried to do this: #19
This is my first time doing anything like this, so I'm not sure if I'm going about it in the right way, but I replaced the anonymous function with a named one and gave it the seed as a parameter.