class Rock:
def __init__(self, length, width):
self.length = length
self.width = width
def move(length):
length = length + 1
rock1 = Rock(100,300)
rock2 = Rock(300,500)
rocklist = [rock1,rock2]
gameover = 1
counter = 0
while gameover == 1:
for i in rocklist:
move(i.length)
print(length)
When running this, length remains the same, as demonstrated by the print. How can I change the values using a function?
There is an object self for all object methods that references to object itself:
def move(self, movement_amount):
self.length += movement_amount
You can call object methods from the object itself:
rock1 = Rock(100,300)
rock1.move(1) # Increase the length of this object by 1
In your case:
while gameover == 1:
for rock in rocklist:
rock.move(1)
print(rock.length)
move(rock.length) instead of rock.move(length)You can create move function as a class function and then use it on the each rock object. This is how code structure will look like:
class Rock:
def __init__(self, length, width):
self.length = length
self.width = width
def move(self):
self.length = self.length + 1
rock1 = Rock(100,300)
rock2 = Rock(300,500)
rocklist = [rock1,rock2]
gameover = 1
counter = 0
while gameover == 1:
for rock in rocklist:
rock.move()
print(rock.length)
length, noti.length, which should be causing aNameErrorsince it's undefined at that point.