Added script to migrate atlas formats

tools/migrate_atlas_format.py

@@ -0,0 +1,44 @@
+import os
+import json
+
+# Migrates the old atlas format (single center/path) to the remastered atlas format (time-boxed centers/paths)
+
+def per_line_entries(entries: list):
+  out = '[\n'
+  for entry in entries:
+    out += json.dumps(entry, ensure_ascii=False) + ',\n'
+  return out[:-2] + '\n]'
+
+file_path = os.path.join('..', 'web', 'atlas.json')
+
+end_image = 167
+init_canvas_range = (1, end_image)
+expansion_1_range = (56, end_image)
+expansion_2_range = (109, end_image)
+
+with open(file_path, 'r+', encoding='UTF-8') as file:
+  entries = json.loads(file.read())
+  
+for entry in entries:
+  center = entry['center']
+  if isinstance(center, list):
+    path = entry['path']
+    
+    # Use the center to figure out which canvas expansion the entry is in.
+    if center[1] > 1000:
+      time_range = expansion_2_range
+    elif center[0] > 1000:
+      time_range = expansion_1_range
+    else:
+      time_range = init_canvas_range
+    
+    time_key = '%d-%d, T:0-2' % time_range
+    entry['center'] = {
+      time_key: center
+    }
+    entry['path'] = {
+      time_key: path
+    }
+
+with open(file_path, 'w', encoding='utf-8', newline='\n') as f2:
+  f2.write(per_line_entries(entries))