__main__.py

"""2024-09-12
Colorful waves 09
Padrão de ondas coloridas, mas que poderiam ser teares
png
Sketch,py5,CreativeCoding
"""

from collections import deque

import numpy as np
import py5

from utils import helpers

sketch = helpers.info_for_sketch(__file__, __doc__)

PALETA = deque(
    [
        "#7ec0e0",
        "#1c8eaf",
        "#032035",
        "#fdaa08",
        "#f87109",
    ]
)


def setup():
    py5.size(helpers.LARGURA, helpers.ALTURA)
    py5.background(252, 249, 230)
    py5.rect_mode(py5.CORNERS)
    py5.stroke_weight(2)
    py5.no_fill()
    passos = 30
    lx = py5.width
    ly = py5.height // 2
    x = np.linspace(-lx, lx, endpoint=False, num=py5.width * 2)
    y = np.linspace(-ly + 10, ly + 10, endpoint=True, num=passos)
    multiplicadores = np.logspace(1.2, 1.4, num=passos // 2, endpoint=False)
    multiplicadores = sorted(multiplicadores, reverse=True) + sorted(multiplicadores)
    pesos = np.linspace(1, 4, num=passos // 2, endpoint=False)
    pesos = sorted(pesos) + sorted(pesos, reverse=True)
    y = zip(y, multiplicadores, pesos)
    with py5.push_matrix():
        py5.translate(lx, ly)
        for yb, mult_b, peso in y:
            y0 = None
            x0 = 0
            py5.stroke_weight(peso)
            for idx, x1 in enumerate(x):
                xd = py5.remap(x1, -lx, lx, -60, 40)
                mult = mult_b * py5.cos(py5.radians(xd))
                yd = mult * (
                    abs(
                        py5.sin(py5.radians(x1 + (3 * yb)))
                        * py5.cos(x1)
                        * py5.sin(py5.radians(x0))
                    )
                )
                y1 = yb + yd if (idx % 2) else yb - yd
                py5.stroke(PALETA[0])
                if y0 is None:
                    y0 = y1
                py5.circle(x0, y0, peso)
                x0, y0 = x1, y1
            PALETA.rotate(1)
    helpers.write_legend(sketch=sketch, frame="#000", cor="#FFF")
    save_and_close()


def key_pressed():
    key = py5.key
    if key == " ":
        save_and_close()


def save_and_close():
    py5.no_loop()
    helpers.save_sketch_image(sketch)
    py5.exit_sketch()


if __name__ == "__main__":
    py5.run_sketch()