Furniture materials: wood, stone, iron, cloth, straw, fur, book spines and spellbook pages in both styles

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tools/make_material.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python3
+"""Turn a generated material picture into a texture for the furniture (props.rs): cropped,
+optionally turned into grey detail (the furniture's colours tint it in the game), brightened to
+a common mean and scaled to the high-res size and the pixel-art size.
+
+Usage:
+  make_material.py raw.png out_prefix [--crop x0,y0,x1,y1] [--trim] [--color] [--mean 0.8]
+
+--crop   fractions of the picture to keep
+--trim   crop to the picture's object (everything that is not near-white background)
+--color  keep the colours (else grey detail)
+--mean   mean brightness of the result (0..1)
+
+Writes out_prefix-64.png and out_prefix-16.png. Needs Pillow.
+"""
+import argparse
+
+from PIL import Image, ImageOps, ImageStat
+
+
+def main():
+    ap = argparse.ArgumentParser()
+    ap.add_argument("raw")
+    ap.add_argument("out")
+    ap.add_argument("--crop", default=None)
+    ap.add_argument("--trim", action="store_true")
+    ap.add_argument("--color", action="store_true")
+    ap.add_argument("--mean", type=float, default=0.8)
+    a = ap.parse_args()
+
+    img = Image.open(a.raw).convert("RGB")
+    if a.crop:
+        f = [float(v) for v in a.crop.split(",")]
+        img = img.crop((int(f[0] * img.width), int(f[1] * img.height), int(f[2] * img.width), int(f[3] * img.height)))
+    if a.trim:
+        # the object: everything darker than the white background, a few pixels in
+        mask = img.convert("L").point(lambda v: 255 if v < 235 else 0)
+        box = mask.getbbox()
+        if box:
+            img = img.crop((box[0] + 4, box[1] + 4, box[2] - 4, box[3] - 4))
+    if not a.color:
+        img = ImageOps.grayscale(img).convert("RGB")
+    mean = ImageStat.Stat(img.convert("L")).mean[0] / 255
+    k = a.mean / max(mean, 0.01)
+    img = img.point(lambda v: min(255, int(v * k)))
+    img.resize((64, 64), Image.LANCZOS).save(f"{a.out}-64.png")
+    small = img.resize((16, 16), Image.BOX)
+    small.quantize(colors=8, method=Image.Quantize.MEDIANCUT, dither=Image.Dither.NONE).convert("RGB").save(f"{a.out}-16.png")
+    print(f"{a.out}-64.png, {a.out}-16.png")
+
+
+if __name__ == "__main__":
+    main()