Added rings that can augment the player's statistics. Also added a new statistic : xp_buff, which helps the player level up sooner.

squirrelbattle/entities/items.py

@@ -108,7 +108,7 @@ class Item(Entity):
     @staticmethod
     def get_all_items() -> list:
         return [BodySnatchPotion, Bomb, Heart, Shield, Sword,\
-                Chestplate, Helmet]
+                Chestplate, Helmet, RingCritical, RingXP]
 
     def be_sold(self, buyer: InventoryHolder, seller: InventoryHolder) -> bool:
         """
@@ -361,3 +361,69 @@ class BodySnatchPotion(Item):
         self.held_by.recalculate_paths()
 
         self.held_by.inventory.remove(self)
+
+class Ring(Item):
+    """
+    A class of rings that boost the player's statistics.
+    """
+    maxhealth: int
+    strength: int
+    intelligence: int
+    charisma: int
+    dexterity: int
+    constitution: int
+    critical: int
+    experience: float
+
+    def __init__(self, maxhealth: int = 0, strength: int = 0,\
+                 intelligence: int = 0, charisma: int = 0,\
+                 dexterity: int = 0, constitution: int = 0,\
+                 critical: int = 0, experience: float = 0, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.maxhealth = maxhealth
+        self.strength = strength
+        self.intelligence = intelligence
+        self.charisma = charisma
+        self.dexterity = dexterity
+        self.constitution = constitution
+        self.critical = critical
+        self.experience = experience
+
+    def equip(self) -> None:
+        super().equip()
+        self.held_by.maxhealth += self.maxhealth
+        self.held_by.strength += self.strength
+        self.held_by.intelligence += self.intelligence
+        self.held_by.charisma += self.charisma
+        self.held_by.dexterity += self.dexterity
+        self.held_by.constitution += self.constitution
+        self.held_by.critical += self.critical
+        self.held_by.xp_buff += self.experience
+
+    def unequip(self) -> None:
+        super().unequip()
+        self.held_by.maxhealth -= self.maxhealth
+        self.held_by.strength -= self.strength
+        self.held_by.intelligence -= self.intelligence
+        self.held_by.charisma -= self.charisma
+        self.held_by.dexterity -= self.dexterity
+        self.held_by.constitution -= self.constitution
+        self.held_by.critical -= self.critical
+        self.held_by.xp_buff -= self.experience
+
+    def save_state(self) -> dict:
+        d = super().save_state()
+        d["constitution"] = self.constitution
+        return d
+
+class RingCritical(Ring):
+    def __init__(self, name: str = "ring_of_critical_damage", price: int = 15,
+                 critical: int = 20, *args, **kwargs):
+        super().__init__(name=name, price=price, critical=critical, \
+                         *args, **kwargs)
+
+class RingXP(Ring):
+    def __init__(self, name: str = "ring_of_more_experience", price: int = 25,
+                 experience: float = 2, *args, **kwargs):
+        super().__init__(name=name, price=price, experience=experience, \
+                         *args, **kwargs)