"""Deterministic original blood decal mask (not a Valve asset)."""
from PIL import Image, ImageDraw, ImageFilter
from pathlib import Path
import random
rng=random.Random(41)
im=Image.new('RGBA',(512,512))
d=ImageDraw.Draw(im)
for i in range(120):
 x=rng.gauss(256,70); y=rng.gauss(256,65)
 radius=rng.uniform(4,48) if i<55 else rng.uniform(2,8)
 d.ellipse((x-radius,y-radius,x+radius,y+radius),fill=(100+rng.randrange(30),5,8,rng.randrange(155,240)))
im=im.filter(ImageFilter.GaussianBlur(0.8))
p=Path(__file__).resolve().parents[1]/'assets/effects/blood.png'
p.parent.mkdir(parents=True,exist_ok=True)
im.save(p)