Session 2: Cheatsheet

meteors = []          # empty list

rock = Actor('meteor')
meteors.append(rock)  # add it

for rock in meteors[:]:   # [:] = copy
    rock.y += 4
    if rock.y > HEIGHT + 30:
        meteors.remove(rock)

timer = 0

def update():
    global timer
    timer += 1
    if timer % 60 == 0:   # every second
        spawn_meteor()

for rock in meteors[:]:
    if rock.colliderect(ship):
        meteors.remove(rock)
        lives -= 1

def update():
    if game_over:
        return
    # rest of the code...

screen.draw.text(f"Score: {score}", (10, 10), color="white")
screen.draw.text(
    "GAME OVER",
    center=(WIDTH / 2, HEIGHT / 2),
    color="red",
    fontsize=60,
)

import random
x = random.randint(30, WIDTH - 30)