Hard Reset: Purged all assets and cleaned up PreloadScene image loading

scripts/process_asset.py

@@ -0,0 +1,81 @@
+import sys
+import os
+import glob
+from PIL import Image
+
+def remove_background(img):
+    img = img.convert("RGBA")
+    datas = img.getdata()
+
+    new_data = []
+    for item in datas:
+        r, g, b, a = item
+        # 1. Near pure white
+        if r > 240 and g > 240 and b > 240:
+            new_data.append((255, 255, 255, 0))
+        # 2. Near pure green
+        elif g > 200 and g > r * 1.5 and g > b * 1.5:
+            new_data.append((0, 255, 0, 0))
+        # 3. Off-white/Light gray
+        elif r > 220 and g > 220 and b > 220 and abs(r-g) < 15 and abs(g-b) < 15:
+            new_data.append((r, g, b, 0))
+        else:
+            new_data.append(item)
+
+    img.putdata(new_data)
+    return img
+
+def process_file(input_path, output_dir, tile_width=None, tile_height=None):
+    try:
+        img = Image.open(input_path)
+        filename = os.path.basename(input_path).split('.')[0]
+        
+        if tile_width and tile_height:
+            # Spritesheet mode
+            w, h = img.size
+            cols = w // tile_width
+            rows = h // tile_height
+            for r in range(rows):
+                for c in range(cols):
+                    left = c * tile_width
+                    top = r * tile_height
+                    right = left + tile_width
+                    bottom = top + tile_height
+                    
+                    tile = img.crop((left, top, right, bottom))
+                    tile = remove_background(tile)
+                    
+                    # Trim
+                    bbox = tile.getbbox()
+                    if bbox:
+                        tile = tile.crop(bbox)
+                        output_path = os.path.join(output_dir, f"{filename}_r{r}_c{c}.png")
+                        tile.save(output_path, "PNG")
+        else:
+            # Single image mode
+            img = remove_background(img)
+            bbox = img.getbbox()
+            if bbox:
+                img = img.crop(bbox)
+            output_path = os.path.join(output_dir, f"{filename}.png")
+            img.save(output_path, "PNG")
+            
+        print(f"Processed: {input_path}")
+    except Exception as e:
+        print(f"Error processing {input_path}: {e}")
+
+if __name__ == "__main__":
+    # Usage: python process_asset.py <input_pattern> <output_dir> [tile_w tile_h]
+    if len(sys.argv) < 3:
+        print("Usage: python process_asset.py <input_pattern> <output_dir> [tile_w tile_h]")
+    else:
+        pattern = sys.argv[1]
+        out_dir = sys.argv[2]
+        os.makedirs(out_dir, exist_ok=True)
+        
+        tw = int(sys.argv[3]) if len(sys.argv) > 4 else None
+        th = int(sys.argv[4]) if len(sys.argv) > 4 else None
+        
+        for f in glob.glob(pattern, recursive=True):
+            if os.path.isfile(f):
+                process_file(f, out_dir, tw, th)