Rainbow Sierpinski triangles (plasmatik colorx)

rainbowsierpinski-plasmatik.py

SYMBOL = "✿" # change if your font lacks the flower :(
import itertools
import shutil
import sys
import time
import colorsys
from math import atan2, cos, pi, sin, sqrt

w = shutil.get_terminal_size()[0]
n1 = w//2 + 1
n2 = w - n1 - 2
x = n1*[0] + [1] + n2*[0]
get = lambda i: x[i] if 0 <= i < len(x) else 0
ns = lambda i: get(i-1) + get(i+1)
xc = lambda r, g, b: int(16 + (r * 36) + (g * 6) + b)
hv = lambda h, v: xc(*[int(m*5) for m in colorsys.hsv_to_rgb(h % 1, 1, v)])
rot = lambda t, x, y: (lambda a, r: (r * cos(a), r * sin(a)))(atan2(y, x) + t, sqrt(x*x + y*y))
vs = lambda k, amp, phs, a: lambda x, y: amp * sin(k * rot(-a, x, y)[0] + phs)
c = lambda b: lambda x, y: (lambda *pss: round(hv(sum(vs(*ps)(x, y) for ps in pss), b)))(
    (0.079, 0.5, 0.0, -pi/2), (0.088, 0.4, 2.0, pi/5), (0.17, 0.4, 1.2, pi/32), (0.09, 0.3, -0.4, -pi/7)
)
for l in itertools.count():
    for k in range(len(x)):
        if x[k]: print("\033[38;5;" + str(c(1)(k, l)) + "m" + SYMBOL + "\033[0m", end="")
        else:    print(" ", end="")
    print()
    x = [int(ns(i) == 1) for i in range(len(x))]
    time.sleep(0.1)