def main():
import sys, traceback
from fn import Fn
from sand import Sand
sand = Sand(SIZE)
sand.set_bg_from_rgb_array(img)
sand.set_rgba(FRONT)
fn = Fn(prefix='./res/', postfix='.png')
si = spline_iterator()
while True:
try:
itt, xy = next(si)
# sand.distort_dots_swap(xy)
sand.distort_dots_wind(xy)
if not itt%5000:
print(itt)
sand.write_to_png(fn.name())
except Exception:
sand.write_to_png(fn.name())
traceback.print_exc(file=sys.stdout)
return
