Repaired a but : bears dealt 1 damage instead of 0.

squirrelbattle/interfaces.py

@@ -774,7 +774,8 @@ class FightingEntity(Entity):
         The entity takes damage from the attacker
         based on their respective stats.
         """
-        damage = max(1, amount - self.constitution)
+        if amount != 0 :
+            damage = max(1, amount - self.constitution)
         self.health -= damage
         if self.health <= 0:
             self.die()