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<?php | |
//This is a port of Ken Perlin's "Improved Noise" | |
// http://mrl.nyu.edu/~perlin/noise/ | |
// Originally from http://therandomuniverse.blogspot.com/2007/01/perlin-noise-your-new-best-friend.html | |
// but the site appears to be down, so here is a mirror of it | |
class Perlin { | |
var $p, $permutation, $seed; |