Working on a filter to find spells requiring a template of some sort

dnd5etools/scripts/spell_templates.py

@@ -1,8 +1,16 @@
 import pprint
+import re
 import dnd5etools.db.spells
 import dnd5etools.scripts.argparse
 
 
+area_size_re = re.compile(r"\d+-foot")
+sphere_size_re = re.compile(r"(?P<size>\d+)-foot-radius sphere")
+cylinder_size_re = re.compile(r"(?P<size>\d+)-foot-radius, \d+-foot-high cylinder")
+cube_size_re = re.compile(r"(?P<size>\d+)-foot cube")
+cone_size_re = re.compile(r"(?P<size>\d+)-foot cone")
+
+
 def main():
     args = dnd5etools.scripts.argparse.build_argument_parser(
         "Summarizes spell templates",
@@ -12,7 +20,45 @@ def main():
         codes = list(db.db_index.source_index.keys())
     else:
         codes = args.source_code
+    all_template_spells = []
     for code in codes:
-        spell_list = db.get_spell_list(code)
-        # pprint.pprint(spell_list.spells)
-        print(f"Found {len(spell_list.spells)} spells")
+        all_template_spells += filter(is_template_spell, db.get_spell_list(code).spells)
+    # pprint.pprint(all_template_spells)
+    spheres = set()
+    cylinders = set()
+    cubes = set()
+    cones = set()
+    for spell in all_template_spells:
+        found = False
+        for search_re, dest in [
+            (sphere_size_re, spheres),
+            (cylinder_size_re, cylinders),
+            (cube_size_re, cubes),
+            (cone_size_re, cones),
+        ]:
+            m = search_re.search(spell.description)
+            if m is not None:
+                dest.add(m.group("size"))
+                found = True
+                break
+        if not found:
+            print(spell)
+    print("spheres", spheres)
+    print("cylinders", cylinders)
+    print("cubes", cubes)
+    print("cones", cones)
+
+
+def is_template_spell(spell: dnd5etools.db.spells.Spell) -> bool:
+    return (
+        len(spell.area_type) > 0
+        and has_timed_duration(spell)
+        and area_size_re.search(spell.description) is not None
+    )
+
+
+def has_timed_duration(spell: dnd5etools.db.spells.Spell) -> bool:
+    for sd in spell.duration:
+        if sd.type != dnd5etools.db.spells.DurationType.Instant:
+            return True
+    return False