"""2023-05-11"""
from helpers import HEIGHT
from helpers import save_image
from helpers import WIDTH
from helpers import write_legend
from opensimplex import OpenSimplex
from pathlib import Path
import math
import numpy as np
import py5
import random
IMG_NAME = Path(__file__).name.replace(".py", "")
# Set up the OpenSimplex noise generator
noise_generator = OpenSimplex(seed=958351)
# Constants
scale = 5
cols = int(WIDTH / scale)
rows = int(HEIGHT / scale)
num_lines = 800
line_length = 40
ll_array = np.arange(line_length)
# Initialize the angle field
angle_field = [[0 for _ in range(cols)] for _ in range(rows)]
def map_value(value, start1, stop1, start2, stop2):
proportion = (value - start1) / (stop1 - start1)
return start2 + proportion * (stop2 - start2)
def settings():
py5.size(WIDTH, HEIGHT)
def setup():
global angle_field
py5.background(py5.color(248, 241, 219))
py5.color_mode(py5.HSB, 360, 100, 100, 100)
i = np.array([i * 0.1 for i in np.arange(0, cols)])
j = np.array([j * 0.2 for j in np.arange(0, rows)])
angle_field = noise_generator.noise2array(i, j)
draw_circuit()
def draw_circuit():
py5.stroke_weight(4)
for idy, _ in enumerate(range(num_lines)):
# Choose a random starting point
x, y = random.randint(0, WIDTH), random.randint(0, HEIGHT)
# Set the initial color for the line
hue = random.randint(0, 360)
py5.stroke(hue, 100, 100, 50)
py5.circle(x, y, 15)
direction = 1.01 if idy % 2 else -1.05
for idx, _ in enumerate(ll_array):
# Get the grid indices for the current position
i, j = int(x / scale), int(y / scale)
# If the current position is outside the grid, break the loop
if not (0 <= i < cols and 0 <= j < rows):
break
# Get the angle for this point
angle_raw = angle_field[i][j]
# Convert the noise value to an angle
angle = py5.radians((map_value(angle_raw, -1, 1, 0, 360) // 45) * 45)
# Calculate the x and y components of the vector
x_component = 0
y_component = 0
if idx % 2:
x_component = math.cos(angle) * scale * py5.random_int(1, 10)
else:
y_component = math.sin(angle) * scale * py5.random_int(1, 10)
# Calculate the new position
x_new, y_new = x + x_component * direction, y + y_component * direction
# Draw the line segment
py5.line(x, y, x_new, y_new)
# Update the position
x, y = x_new, y_new
py5.circle(x, y, 15)
write_legend(["#000000"], IMG_NAME)
def key_pressed():
key = py5.key
if key == " ":
py5.no_loop()
save_image(IMG_NAME, "png")
py5.exit_sketch()
py5.run_sketch()