NodeBox

Fireworks

Well, since it's almost New Year and all we put up something uuh celebrative, a fireworks generator. The source code is all fun and merriment, full of nested translation stacks and floating-point numbers, and it's free! Just copy and paste the little blob of code below into NodeBox to play around with your own explosions. Essentially, the scripts draws a number of sparks spiralling outward, each spark being a number of ovals rotating around a point of origin. Enjoy!

The source:

size(800, 800)
 
fill(0.2, 0.05, 0)
rect(0, 0, WIDTH, HEIGHT)
 
nofill()
for i in range(WIDTH/2):
    r = i * 2
    a = 1.0 * i / WIDTH/2
    stroke(1,1,0, 0.2 - a)
    strokewidth(1)
    oval(WIDTH/2-r*0.5, HEIGHT/2-r*0.5, r, r)
 
translate(WIDTH/2, HEIGHT/2)
transform(CORNER)
strokewidth(0.25)
 
n = 80
for i in range(n):
 
  r = 50.0
  dy = random(n)
  d = 1.0*i/n  
 
  for j in range(i/2):
    nostroke()
    fill(d*0.9, d*0.6, 1.0*j/i/2, 0.2*d)
    stroke(d*0.9, d*0.8, 1.0*j/i/2, d*0.7)
    push()
    translate(i/0.75, dy)
    rotate(10*j)
    r2 = 4+ 10.0 * j/i
    oval(0-r2*0.5+j*5, 0-r2*0.5, r2, r2)
    line(j*5, 0, 0, 0)
    pop()
 
  fill(d*0.9, d*0.6, 0, 1.0-d)
  nostroke()
  rotate(5)
 
  stroke(d*0.9, d*0.6, 0, 1.0-d)
  autoclosepath(False)
  nofill()
  beginpath(0, 0)
  curveto(0, 0, i, i, i/0.75, dy)
  endpath()

Created by Tom De Smedt