"""Alpha-masked textures for the cottage window box: a row of geraniums and lavender (flowers.png) and trailing
ivy hanging over the front (ivy.png). Both 512x256 RGBA, meant for alpha_mode mask.

  local/hear-venv/Scripts/python.exe flowers_tex.py OUTDIR

Claude Opus 5.5 (Tessel), 2026-10-10."""
import math
import sys
from pathlib import Path

import numpy as np
from PIL import Image, ImageDraw

rng = np.random.default_rng(11)
OUT = Path(sys.argv[1] if len(sys.argv) > 1 else ".")
W, H = 512, 256


def leaf(d, x, y, ang, size, col):
    pts = []
    for t in np.linspace(0, math.pi * 2, 14):
        r = size * (0.5 + 0.5 * abs(math.sin(t)))
        px, py = math.cos(t) * r, math.sin(t) * r * 0.55
        ca, sa = math.cos(ang), math.sin(ang)
        pts.append((x + px * ca - py * sa, y + px * sa + py * ca))
    d.polygon(pts, fill=col)


def flowers():
    img = Image.new("RGBA", (W, H), (0, 0, 0, 0))
    d = ImageDraw.Draw(img)
    greens = [(46, 96, 44, 255), (60, 116, 52, 255), (38, 80, 40, 255)]
    x = 8
    while x < W - 8:
        kind = rng.choice(["geranium", "geranium", "lavender", "white"])
        top = int(rng.uniform(70, 120))
        # foliage mound
        for _ in range(28):
            leaf(d, x + rng.uniform(-22, 22), rng.uniform(top + 15, H - 4), rng.uniform(0, math.pi), rng.uniform(12, 20),
                 tuple(greens[int(rng.integers(3))]))
        if kind == "lavender":
            for _ in range(6):
                sx = x + rng.uniform(-18, 18)
                sy = rng.uniform(top, top + 30)
                d.line([(sx, H - 20), (sx + rng.uniform(-6, 6), sy)], fill=(70, 110, 60, 255), width=2)
                for k in range(9):
                    yy = sy + k * 4
                    c = (int(rng.uniform(120, 150)), int(rng.uniform(100, 120)), int(rng.uniform(190, 220)), 255)
                    d.ellipse([sx - 3, yy - 3, sx + 3, yy + 3], fill=c)
        else:
            base = (205, 44, 52) if kind == "geranium" else (240, 236, 228)
            if kind == "geranium" and rng.random() < 0.4:
                base = (232, 96, 130)
            for _ in range(3):
                cx, cy = x + rng.uniform(-14, 14), top + rng.uniform(0, 25)
                d.line([(cx, cy), (cx + rng.uniform(-4, 4), H - 30)], fill=(60, 100, 50, 255), width=2)
                for _ in range(22):                      # a ball of florets
                    a, r = rng.uniform(0, 6.28), rng.uniform(0, 13)
                    px, py = cx + math.cos(a) * r, cy + math.sin(a) * r * 0.8
                    shade = rng.uniform(0.8, 1.1)
                    c = tuple(int(min(255, v * shade)) for v in base) + (255,)
                    d.ellipse([px - 4, py - 4, px + 4, py + 4], fill=c)
        x += int(rng.uniform(26, 38))
    return img


def ivy():
    img = Image.new("RGBA", (W, H), (0, 0, 0, 0))
    d = ImageDraw.Draw(img)
    for _ in range(22):
        x = rng.uniform(0, W)
        length = rng.uniform(80, H - 10)
        y = 0.0
        while y < length:
            nx = x + rng.uniform(-6, 6)
            ny = y + rng.uniform(8, 14)
            d.line([(x, y), (nx, ny)], fill=(70, 80, 40, 255), width=2)
            side = 1 if rng.random() < 0.5 else -1
            c = (int(rng.uniform(40, 70)), int(rng.uniform(95, 130)), int(rng.uniform(40, 60)), 255)
            leaf(d, nx + side * 7, ny, rng.uniform(0, math.pi), rng.uniform(6, 10), c)
            x, y = nx, ny
    return img


OUT.mkdir(parents=True, exist_ok=True)
flowers().save(OUT / "flowers.png")
ivy().save(OUT / "ivy.png")
print(OUT / "flowers.png", OUT / "ivy.png")