feat: add meme lost_dog (#84)

meme_generator/memes/lost_dog/__init__.py

@@ -0,0 +1,39 @@
+import math
+from pathlib import Path
+from typing import List
+
+from pil_utils import BuildImage
+
+from meme_generator import add_meme
+
+img_dir = Path(__file__).parent / "images"
+
+
+def lost_dog(images: List[BuildImage], texts, args):
+    k = 2
+    w_ = 459 * k
+    w = 380 * k
+    h = 350 * k
+    r = 339 * k
+    img = images[0].convert("RGBA").resize((w_, h), keep_ratio=True)
+    img_new = BuildImage.new("RGBA", (w, h))
+    for x in range(w):
+        for y in range(h):
+            theta = math.asin(abs(x - w / 2) / r)
+            x_ = round(w_ / 2 + (x - w / 2) / math.cos(theta))
+            y_ = round(h / 2 + (y - h / 2) / math.cos(theta))
+            if 0 <= x_ < w_ and 0 <= y_ < h:
+                img_new.image.putpixel((x, y), img.image.getpixel((x_, y_)))
+    img_new = img_new.resize((w // k, h // k))
+    frame = BuildImage.open(img_dir / "0.png")
+    frame.paste(img_new, (190, 110), below=True)
+    return frame.save_jpg()
+
+
+add_meme(
+    "lost_dog",
+    lost_dog,
+    min_images=1,
+    max_images=1,
+    keywords=["寻狗启事"],
+)