Question

我是python的新手，所以我不知道自己做错了什么。我一直在关注有关pygame的教程，并且到达了创建多个敌人的部分。该部分是这样的：

enemyImg = []
enemyX = []
enemyY = []
enemyX_change = []
enemyY_change = []
num_of_enemies = 2

for i in range(num_of_enemies):
    enemyImg.append(pygame.image.load('ufo.png'))
    enemyX.append(random.randint(0, 736))
    enemyY.append(random.randint(50, 150))
    enemyX_change.append(0.3)
    enemyY_change.append(40)

敌人在那里，但显然只有一个在那里。几乎就像另一个在后台一样。如果有人可以帮助我，我将非常感激。

编辑：这是整个主循环。有些不在这里，所以不会太长

running = True
while running:

screen.fill((0, 0, 0))
# Background Image

screen.blit(background, (0, 0))
for event in pygame.event.get():
    if event.type == pygame.QUIT:
        running = False

# Enemy movement
for i in range(num_of_enemies):
    enemyX[i] += enemyX_change[i]
    if enemyX[i] <= 0:
        enemyX_change[i] = 0.3
        enemyY[i] += enemyY_change[i]
    elif enemyX[i] >= 736:
        enemyX_change[i] = -0.3
        enemyY[i] += enemyY_change[i]

    # Collision
    collision = isCollision(enemyX[i], enemyY[i], bulletX, bulletY)
    if collision:
        bulletY = 480
        bullet_state = 'ready'
        score += 100
        print(score)
        enemyX[i] = random.randint(0, 736)
        enemyY[i] = random.randint(50, 150)

enemy(enemyX[i], enemyY[i], i)

player(playerX, playerY)
pygame.display.update()

Answer 1

这是Indentation的问题。绘制敌人的循环必须在遍历敌人的循环中完成，而不是在循环之后进行：

for i in range(num_of_enemies):
    # [...]

    #-->| INDENTATION
    enemy(enemyX[i], enemyY[i], i)

用pygame创建几个敌人的问题

1 个答案: