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| class Mbezier | |
| constructor: -> | |
| update: (fn) -> | |
| for param in ['points', 'colors'] | |
| if not this[param] then this[param] = {} | |
| if param is 'points' then k = 'xy' | |
| if param is 'colors' then k = 'rgba' | |
| for c in k.split('') | |
| this[param][c] = fn(param, c) | |
| o = [] | |
| n = 13 | |
| v = 0.0001 | |
| sin = (val, scale) -> 2 * (Math.sin(@noise(val) * @PI) - 1) * scale | |
| @setup = -> | |
| @createCanvas 480, 360 | |
| for i in [0..n-1] | |
| o[i] = new Mbezier() | |
| o[i].update (param, l)-> | |
| if l is 'x' then r = @random(@width) | |
| if l is 'y' then r = @random(@height) | |
| if l is 'r' or l is 'g' or r is 'b' or r is 'a' then r = @random(255) | |
| {offset: Math.random(), val: r} | |
| @draw = -> | |
| @background 0 | |
| for oo in o | |
| @stroke oo.colors.r.val, oo.colors.g.val, oo.colors.b.val | |
| @noFill() | |
| @bezier oo.points.x.val[0], oo.points.y.val[0], oo.points.x.val[1], oo.points.y.val[1], oo.points.x.val[2], oo.points.y.val[2], oo.points.x.val[3], oo.points.y.val[3] | |
| oo.update (param, l)-> | |
| offset = oo[param][l].offset + v | |
| if l is 'x' then r = sin(oo[param][l].offset, @width) | |
| if l is 'y' then r = sin(oo[param][l].offset, @height) | |
| if l is 'r' or l is 'g' or r is 'b' or r is 'a' then r = sin(oo[param][l].offset, 255) | |
| {offset: offset, val: r} |
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