ok so here i got an error help please

Question

So im in python's project called Shooting Game and my only error is that i cant undestand why my code instead of subtract a number of life and save it,just subtract it and then its like it erase the result,it would be easier to undestand if code it

class Enemigo:
nombre=""
vidas=0
def __init__(self, nombre,vidas):
self.nombre = nombre
self.vidas = vidas

def hit(self):
self.vidas=self.vidas-1
if self.vidas<=0:
print(self.nombre+" killed")
else:
print(self.nombre+" has "+ str(self.vidas)+" lives")

class Monstruo(Enemigo):
def __init__(self):
super().__init__('Monster', 3)

class Alien(Enemigo):
def __init__(self):
super().__init__('Alien', 5)

while True:
x = input()
if x=='exit':
break
elif x=="gun":
Monstruo().hit()
elif x == 'laser':
Alien().hit()

Answer 1

because every time you loop in that while loop, a new class instance is created. With all new lives too.

..... snippet .....

# create instances outside loop
monster = Monsturo()
alien = Alien()

while True:
x = input()
if x=='exit':
break
elif x=="gun":
monster.hit() # change inside the loop
elif x == 'laser':
alien.hit() # change inside the loop

Answer 2

Thank you very much,it appears an instance of the class but i tought it was optional