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Copy pathColorful Stacked Patterns.py
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Colorful Stacked Patterns.py
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import random
from math import floor
from ctypes import c_int64
import sys
import pygame
import numpy as np
import numba
GRADIENTS2 = np.array([
5, 2, 2, 5,
-5, 2, -2, 5,
5, -2, 2, -5,
-5, -2, -2, -5,
], dtype=np.int64)
GRADIENTS3 = np.array([
-11, 4, 4, -4, 11, 4, -4, 4, 11,
11, 4, 4, 4, 11, 4, 4, 4, 11,
-11, -4, 4, -4, -11, 4, -4, -4, 11,
11, -4, 4, 4, -11, 4, 4, -4, 11,
-11, 4, -4, -4, 11, -4, -4, 4, -11,
11, 4, -4, 4, 11, -4, 4, 4, -11,
-11, -4, -4, -4, -11, -4, -4, -4, -11,
11, -4, -4, 4, -11, -4, 4, -4, -11,
], dtype=np.int64)
GRADIENTS4 = np.array([
3, 1, 1, 1, 1, 3, 1, 1, 1, 1, 3, 1, 1, 1, 1, 3,
-3, 1, 1, 1, -1, 3, 1, 1, -1, 1, 3, 1, -1, 1, 1, 3,
3, -1, 1, 1, 1, -3, 1, 1, 1, -1, 3, 1, 1, -1, 1, 3,
-3, -1, 1, 1, -1, -3, 1, 1, -1, -1, 3, 1, -1, -1, 1, 3,
3, 1, -1, 1, 1, 3, -1, 1, 1, 1, -3, 1, 1, 1, -1, 3,
-3, 1, -1, 1, -1, 3, -1, 1, -1, 1, -3, 1, -1, 1, -1, 3,
3, -1, -1, 1, 1, -3, -1, 1, 1, -1, -3, 1, 1, -1, -1, 3,
-3, -1, -1, 1, -1, -3, -1, 1, -1, -1, -3, 1, -1, -1, -1, 3,
3, 1, 1, -1, 1, 3, 1, -1, 1, 1, 3, -1, 1, 1, 1, -3,
-3, 1, 1, -1, -1, 3, 1, -1, -1, 1, 3, -1, -1, 1, 1, -3,
3, -1, 1, -1, 1, -3, 1, -1, 1, -1, 3, -1, 1, -1, 1, -3,
-3, -1, 1, -1, -1, -3, 1, -1, -1, -1, 3, -1, -1, -1, 1, -3,
3, 1, -1, -1, 1, 3, -1, -1, 1, 1, -3, -1, 1, 1, -1, -3,
-3, 1, -1, -1, -1, 3, -1, -1, -1, 1, -3, -1, -1, 1, -1, -3,
3, -1, -1, -1, 1, -3, -1, -1, 1, -1, -3, -1, 1, -1, -1, -3,
-3, -1, -1, -1, -1, -3, -1, -1, -1, -1, -3, -1, -1, -1, -1, -3,
], dtype=np.int64)
STRETCH_CONSTANT2 = -0.211324865405187
SQUISH_CONSTANT2 = 0.366025403784439
STRETCH_CONSTANT3 = -1.0 / 6
SQUISH_CONSTANT3 = 1.0 / 3
STRETCH_CONSTANT4 = -0.138196601125011
SQUISH_CONSTANT4 = 0.309016994374947
NORM_CONSTANT2 = 47
NORM_CONSTANT3 = 103
NORM_CONSTANT4 = 30
@numba.njit()
def extrapolate2(perm, xsb, ysb, dx, dy):
index = perm[(perm[xsb & 0xFF] + ysb) & 0xFF] & 0x0E
g1, g2 = GRADIENTS2[index : index + 2]
return g1 * dx + g2 * dy
@numba.njit()
def generatekey(x, y, perm):
stretch_offset = (x + y) * STRETCH_CONSTANT2
xs = x + stretch_offset
ys = y + stretch_offset
xsb = floor(xs)
ysb = floor(ys)
squish_offset = (xsb + ysb) * SQUISH_CONSTANT2
xb = xsb + squish_offset
yb = ysb + squish_offset
xins = xs - xsb
yins = ys - ysb
in_sum = xins + yins
dx0 = x - xb
dy0 = y - yb
value = 0
dx1 = dx0 - 1 - SQUISH_CONSTANT2
dy1 = dy0 - 0 - SQUISH_CONSTANT2
attn1 = 2 - dx1 * dx1 - dy1 * dy1
if attn1 > 0:
attn1 *= attn1
value += attn1 * attn1 * extrapolate2(perm, xsb + 1, ysb + 0, dx1, dy1)
dx2 = dx0 - 0 - SQUISH_CONSTANT2
dy2 = dy0 - 1 - SQUISH_CONSTANT2
attn2 = 2 - dx2 * dx2 - dy2 * dy2
if attn2 > 0:
attn2 *= attn2
value += attn2 * attn2 * extrapolate2(perm, xsb + 0, ysb + 1, dx2, dy2)
if in_sum <= 1:
zins = 1 - in_sum
if zins > xins or zins > yins:
if xins > yins:
xsv_ext = xsb + 1
ysv_ext = ysb - 1
dx_ext = dx0 - 1
dy_ext = dy0 + 1
else:
xsv_ext = xsb - 1
ysv_ext = ysb + 1
dx_ext = dx0 + 1
dy_ext = dy0 - 1
else:
xsv_ext = xsb + 1
ysv_ext = ysb + 1
dx_ext = dx0 - 1 - 2 * SQUISH_CONSTANT2
dy_ext = dy0 - 1 - 2 * SQUISH_CONSTANT2
else:
zins = 2 - in_sum
if zins < xins or zins < yins:
if xins > yins:
xsv_ext = xsb + 2
ysv_ext = ysb + 0
dx_ext = dx0 - 2 - 2 * SQUISH_CONSTANT2
dy_ext = dy0 + 0 - 2 * SQUISH_CONSTANT2
else:
xsv_ext = xsb + 0
ysv_ext = ysb + 2
dx_ext = dx0 + 0 - 2 * SQUISH_CONSTANT2
dy_ext = dy0 - 2 - 2 * SQUISH_CONSTANT2
else:
dx_ext = dx0
dy_ext = dy0
xsv_ext = xsb
ysv_ext = ysb
xsb += 1
ysb += 1
dx0 = dx0 - 1 - 2 * SQUISH_CONSTANT2
dy0 = dy0 - 1 - 2 * SQUISH_CONSTANT2
attn0 = 2 - dx0 * dx0 - dy0 * dy0
if attn0 > 0:
attn0 *= attn0
value += attn0 * attn0 * extrapolate2(perm, xsb, ysb, dx0, dy0)
attn_ext = 2 - dx_ext * dx_ext - dy_ext * dy_ext
if attn_ext > 0:
attn_ext *= attn_ext
value += attn_ext * attn_ext * extrapolate2(perm, xsv_ext, ysv_ext, dx_ext, dy_ext)
return value / NORM_CONSTANT2
def overflow(x):
return c_int64(x).value
def getseed(seed):
perm = np.zeros(256, dtype=np.int64)
perm_grad_index3 = np.zeros(256, dtype=np.int64)
source = np.arange(256)
seed = overflow(seed * 6364136223846793005 + 1442695040888963407)
seed = overflow(seed * 6364136223846793005 + 1442695040888963407)
seed = overflow(seed * 6364136223846793005 + 1442695040888963407)
for i in range(255, -1, -1):
seed = overflow(seed * 6364136223846793005 + 1442695040888963407)
r = int((seed + 31) % (i + 1))
if r < 0:
r += i + 1
perm[i] = source[r]
perm_grad_index3[i] = int((perm[i] % (len(GRADIENTS3) / 3)) * 3)
source[r] = source[i]
return perm
pygame.init()
clock = pygame.time.Clock()
pygame.display.set_caption("Colorful Stacked Patterns")
i = 0
c1_seed = getseed(int(random.random()*200))
c2_seed = getseed(int(random.random()*200))
c3_seed = getseed(int(random.random()*200))
c8_seed = getseed(int(random.random()*200))
c1, c2, c3 = generatekey(i, 0, c1_seed), generatekey(i, 0, c2_seed), generatekey(i, 0, c3_seed)
display = pygame.display.set_mode((1280, 720))
fullscreen = False
while True:
pygame.display.set_caption("Colorful Stacked Patterns")
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
pygame.quit()
sys.exit()
elif event.key == pygame.K_F11:
fullscreen = not fullscreen
if fullscreen:
window = pygame.display.set_mode(
(0, 0),
pygame.FULLSCREEN,
vsync=True)
else:
window = pygame.display.set_mode(
(1280, 720),
vsync=True)
c1 += generatekey(i, 0, c1_seed)*random.random()*5
c2 += generatekey(i, 0, c2_seed)*random.random()*5
c3 += generatekey(i, 0, c3_seed)*random.random()*5
if c1 > 255:
c1 = 255
elif c1 < 100:
c1 = 100
if c2 > 255:
c2 = 255
elif c2 < 0:
c2 = 0
if c3 > 255:
c3 = 255
elif c3 < 0:
c3 = 0
res = 8
for x in range(int(display.get_width()/res)):
for y in range(int(display.get_height()/res)):
g = generatekey(x/30, y/30+i, c8_seed)
if g > 0:
rect = pygame.Rect(x*res-res/2, y*res-res/2, res, res)
cq_1 = int(c1/(1-g))
cq_2 = int(c2/(1-g))
cq_3 = int(c3/(1-g))
if cq_1 > 255:
cq_1 = 255
elif cq_1 < 0:
cq_1 = 0
if cq_2 > 255:
cq_2 = 255
elif cq_2 < 0:
cq_2 = 0
if cq_3 > 255:
cq_3 = 255
elif cq_3 < 0:
cq_3 = 0
pygame.draw.rect(display, [cq_1, cq_2, cq_3], rect)
pygame.display.flip()
clock.tick(60)
i += 0.007