radial-2 neighborhood 1d ca

gistfile1.js

var ca = (function(rule, grid_size) {
    var radius  = 5;
    var ruleset = _.map(_.range(1 << radius), function(i) { return (rule >> i) & 1; });
    var grid    = _.times(grid_size, _.random.bind(_, 0, 1));

    for(var i=0; i<10; i++) {
        grid = _.map(
            _.zip.apply(_, _.map(_.range(-Math.floor(radius/2), Math.floor(radius/2)), _.partial(_.arr.rotate, grid, _))),
            function(m) { return ruleset[_.foldl(m, function(a, b, i) { return a + (b * (1 << i)); })]; }
        );
        console.log(grid);
    }
}(_.random(1 << 30), 32));