ba-auto-daily/scripts/detect_and_click.py

70 lines
2.0 KiB
Python

#!/usr/bin/env python3
"""Screenshot the game window, find a cafe affection sparkle, click it.
Runs entirely on nik-gpu (screenshot -> detect -> click all local) so the
whole cycle finishes in well under a second - roaming students move fast
enough that a multi-hop SSH/scp pipeline misses the click.
Prints "MATCH x y score" and exits 0 if a sparkle was found and clicked,
or prints "NO_MATCH" and exits 1 otherwise.
"""
import subprocess
import sys
import cv2
import numpy as np
TEMPLATE_PATH = "/home/nik/ba_assets/cafe_sparkle.png"
SHOT_PATH = "/tmp/ba_live.png"
OFFSET_X = 75
OFFSET_Y = 47
THRESHOLD = 0.97
ENV = {"DISPLAY": ":0", "XAUTHORITY": "/run/user/1000/gdm/Xauthority"}
def screenshot():
subprocess.run(
["scrot", "-a", "0,0,1920,1200", "-o", SHOT_PATH],
env=ENV, check=True,
)
def find_sparkles():
template = cv2.imread(TEMPLATE_PATH)
b, g, r = cv2.split(template.astype(np.int16))
yellow_white = ((r > 180) & (g > 140) & (r - b > 60)) | ((r > 200) & (g > 200) & (b > 200))
mask_plane = (yellow_white.astype(np.uint8)) * 255
mask = cv2.merge([mask_plane, mask_plane, mask_plane])
th, tw = template.shape[:2]
img = cv2.imread(SHOT_PATH)
result = cv2.matchTemplate(img, template, cv2.TM_CCORR_NORMED, mask=mask)
locs = np.where(result >= THRESHOLD)
points = sorted(zip(*locs[::-1]), key=lambda p: -result[p[1], p[0]])
merged = []
for x, y in points:
if all(abs(x - mx) > tw // 2 or abs(y - my) > th // 2 for mx, my, _ in merged):
merged.append((x, y, result[y, x]))
return [(x + tw // 2, y + th // 2, score) for x, y, score in merged]
def click(x, y):
subprocess.run(
["xdotool", "mousemove", str(x), str(y), "click", "1"],
env=ENV, check=True,
)
if __name__ == "__main__":
screenshot()
sparkles = find_sparkles()
if not sparkles:
print("NO_MATCH")
sys.exit(1)
x, y, score = sparkles[0]
click(x + OFFSET_X, y + OFFSET_Y)
print(f"MATCH {x} {y} {score:.4f}")
sys.exit(0)