Magic items now can add to saving throw modifiers, and added

Ankylosaurus back in.

This is all or nothing at the moment, so all saving throws get the
same bonus.

Fixes: https://github.com/canismarko/dungeon-sheets/issues/101

dungeonsheets/magic_items.py

@@ -6,6 +6,7 @@ class MagicItem:
 
     name = ""
     ac_bonus = 0
+    st_bonus = 0
     requires_attunement = False
     needs_implementation = False
     rarity = ""
@@ -22,25 +23,25 @@ class MagicItem:
 
 
 class CloakOfProtection(MagicItem):
+    """You gain a +1 bonus to AC and Saving Throws while wearing this
+    cloak.
+    
     """
-    You gain a +1 bonus to AC and Saving Throws while wearing this cloak.
-
-    """
-
     name = "Cloak of Protection"
     ac_bonus = 1
+    st_bonus = 1
     requires_attunement = True
     rarity = "Uncommon"
 
 
 class RingOfProtection(MagicItem):
+    """You gain a +1 bonus to AC and Saving Throws while wearing this
+    ring.
+    
     """
-    You gain a +1 bonus to AC and Saving Throws while wearing this ring.
-
-    """
-
     name = "Ring of Protection"
     ac_bonus = 1
+    st_bonus = 1
     requires_attunement = True
     rarity = "Rare"
     item_type = "Ring"

dungeonsheets/monsters/monsters_a.py

@@ -1539,6 +1539,39 @@ class Ankheg(Monster):
     spells = []
 
 
+class Ankylosaurus(Monster):
+    """Thick armor plating covers the body of the plant-eating dinosaur
+    ankylosaurus, which defends itself against predators with a
+    knobbed tail that delivers a devastating strike.
+    
+    Tail
+      *Melee Weapon Attack:* +7 to hit, reach 10 ft., one
+      target. *Hit:* 18 (4d6+4) bludgeoning damage. If the target is a
+      creature, it must succeed on a DC 14 Strength saving throw or be
+      knocked prone.
+
+    """
+    # TODO: This doesn't appear to be SRD
+    name = "Ankylosaurus"
+    description = "Huge beast, unaligned"
+    challenge_rating = 3
+    armor_class = 15
+    skills = ""
+    senses = "passive Perception 11"
+    strength = Ability(19)
+    dexterity = Ability(11)
+    constitution = Ability(15)
+    intelligence = Ability(2)
+    wisdom = Ability(12)
+    charisma = Ability(5)
+    speed = 30
+    swim_speed = 0
+    fly_speed = 0
+    climb_speed = 0
+    hp_max = 68
+    hit_dice = "8d12+16"    
+
+
 class Ape(Monster):
     """
     Multiattack.

dungeonsheets/stats.py

@@ -76,6 +76,9 @@ class Ability:
             is_proficient = self.ability_name in entity.saving_throw_proficiencies
             if is_proficient:
                 saving_throw += entity.proficiency_bonus
+        # Check for bonuses to saving throws from magic items
+        for mitem in entity.magic_items:
+            saving_throw += getattr(mitem, "st_bonus", 0)
         # Create the named tuple
         value = AbilityScore(modifier=modifier, value=score, saving_throw=saving_throw, name=self.ability_name)
         return value

tests/test_stats.py

@@ -1,6 +1,6 @@
 from unittest import TestCase
 
-from dungeonsheets import stats, character
+from dungeonsheets import stats, character, magic_items
 
 
 class TestStats(TestCase):
@@ -18,6 +18,9 @@ class TestStats(TestCase):
 
         my_class = MyClass()
         self.assertEqual(my_class.strength.saving_throw, 4)
+        # Try it with a magic item
+        my_class.magic_items.append(magic_items.RingOfProtection)
+        self.assertEqual(my_class.strength.saving_throw, 5)
 
     def test_modifier(self):
         class MyCharacter(character.Character):