#!/usr/bin/env python

import sk6812_multistrip as sk6812
import time
import math
import sys

s = sk6812.SK6812(sys.argv[1], 2703)

phase = 0
nled = 16
nstrip = 8

interval = 1.0/60

scale = 0.15

strip = 0

tiltphase = 0

while True:
  for i in range(nled):
    for strip in range(nstrip):
        x = 2*math.pi * i / nled
        y = 2*math.pi * strip * 2*math.sin(tiltphase) / nstrip
        r = scale * (127 + 127 * math.sin(y + x + 13*phase + 0 * math.pi/2))
        g = scale * (127 + 127 * math.sin(y + x + 23*phase + 1 * math.pi/2))
        b = scale * (127 + 127 * math.sin(y + x + 42*phase + 2 * math.pi/2))
        w = scale * 0.6 * (127 + 127 * math.sin(y + x +  5*phase + 3 * math.pi/2))

        s.set_color((strip+5)%nstrip, i, r, g, b, w)

  s.commit()

  phase += 2*math.pi * interval / 41
  tiltphase += 2*math.pi * interval / 11
  time.sleep(interval)