How can I move actors in a list in pygame, here's what I've tried: `
boxes = []
for i in range(10):
h = random.randint(0,200)
w = random.randint(0,200)
boxes.append( Actor("red.png"))
def draw():
red.draw()
for i in range(len(boxes)):
boxes[i].center = (-570,250 -50*i)`
But it gives me an error like red is not defined. How do I fix this?