__main__.py

"""2024-04-07
Mosaico V
Exercício de criação de um mosaico em grade, utilizando elipses.
png
Sketch,py5,CreativeCoding,grid
"""

import py5

from utils import helpers

sketch = helpers.info_for_sketch(__file__, __doc__)


def cria_grade(
    margem_x: int, margem_y: int, celula_x: int, celula_y: int, alternada: bool = True
):
    """Cria uma grade."""
    pontos = []
    celula_x = int(celula_x)
    celula_y = int(celula_y)
    yi = margem_y
    yf = py5.height - margem_y
    for idy, y in enumerate(range(yi, yf, celula_y)):
        if (y + celula_y) > yf:
            break
        buffer = int(celula_x / 2) if (alternada and idy % 2) else 0
        xi = margem_x - buffer
        xf = py5.width - margem_x
        for x in range(xi, xf, celula_x):
            pontos.append((x, y))
    return pontos


def centro_celula(x0: int, y0: int, largura: int, altura: int) -> tuple[float, float]:
    """Calcula o centro de uma célula da grade."""
    x = x0 + (largura / 2)
    y = y0 + (altura / 2)
    return x, y


def setup():
    py5.size(helpers.LARGURA, helpers.ALTURA)
    py5.color_mode(py5.HSB, 160, 100, 100)
    py5.background(0, 80, 20)
    py5.ellipse_mode(py5.CENTER)
    margem_x = -20
    margem_y = -20
    largura = 41
    altura = 41
    grade = cria_grade(margem_x, margem_y, largura, altura, True)
    py5.stroke_weight(2)
    for x, y in grade:
        h = py5.random_int(120, 150)
        s = py5.random_int(60, 70)
        b = py5.random_int(40, 70)
        py5.fill(h, s, b)
        s -= 30
        py5.stroke(h, s, b)
        x, y = centro_celula(x, y, largura, altura)
        escala_x = py5.random(0.7, 0.9)
        escala_y = py5.random(0.7, 0.9)
        angulo = py5.random_int(-90, 90)
        forma = py5.create_shape(
            py5.ELLIPSE, 0, 0, largura * escala_x, altura * escala_y
        )
        forma.rotate(py5.radians(angulo))
        py5.shape(forma, x, y)
    helpers.write_legend(sketch=sketch, cor="#FFF")


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()