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recursive fight solution in Uncategorized category for Army Battles by tagadajones
# Taken from mission The Warriors
class Warrior:
def __init__(self):
self.health = 50
self.attack = 5
@property
def is_alive(self):
return self.health > 0
class Knight(Warrior):
def __init__(self):
super(Knight, self).__init__()
self.attack = 7
def fight(unit_1, unit_2):
while unit_1.is_alive and unit_2.is_alive:
unit_2.health -= unit_1.attack
if unit_2.is_alive:
unit_1.health -= unit_2.attack
else:
return True
return False
class Army():
def __init__(self):
self.units = []
def add_units(self, unit_class, number_of_units):
units = [unit_class() for i in range(number_of_units)]
self.units += units
class Battle():
def fight(self, army_1, army_2):
if not len(army_2.units):
return True
if not len(army_1.units):
return False
unit_1_wins = fight(army_1.units[0], army_2.units[0])
if unit_1_wins:
army_2.units.pop(0)
return self.fight(army_1, army_2)
else:
army_1.units.pop(0)
return self.fight(army_1, army_2)
if __name__ == '__main__':
#These "asserts" using only for self-checking and not necessary for auto-testing
#fight tests
chuck = Warrior()
bruce = Warrior()
carl = Knight()
dave = Warrior()
mark = Warrior()
assert fight(chuck, bruce) == True
assert fight(dave, carl) == False
assert chuck.is_alive == True
assert bruce.is_alive == False
assert carl.is_alive == True
assert dave.is_alive == False
assert fight(carl, mark) == False
assert carl.is_alive == False
#battle tests
my_army = Army()
my_army.add_units(Knight, 3)
enemy_army = Army()
enemy_army.add_units(Warrior, 3)
army_3 = Army()
army_3.add_units(Warrior, 20)
army_3.add_units(Knight, 5)
army_4 = Army()
army_4.add_units(Warrior, 30)
battle = Battle()
assert battle.fight(my_army, enemy_army) == True
assert battle.fight(army_3, army_4) == False
print("Coding complete? Let's try tests!")
April 26, 2019
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