Pygame中的目标练习游戏在目标被射击几次后停止工作，我如何修复这个问题？

Question

我已经在Pygame中创建了一个Target练习游戏，它在每次射击时都会加快速度。在目标被射击几次后，子弹和目标碰撞将停止注册。下面是我认为相关的函数，有人能看出来有什么问题吗？

目标未命中函数：

def target_missed(stats, bullets):
"""Respond to target being missed."""

if stats.misses > 0:
    stats.misses -= 1


    # Empty list of bullets
    bullets.empty()

    # Pause.
    sleep(0.5)

else:
    stats.game_active = False
    pygame.mouse.set_visible(True)

用于子弹-目标碰撞的函数：

def check_bullet_target_collisions(ai_settings, screen, ship, targets, bullets):
"""Respond to bullet-target collisions."""
# Remove any bullets and targets that have collided.
collisions = pygame.sprite.groupcollide(bullets, targets, True, True)

if collisions:
    # Destroy existing bullets, speed up game, and create new target.
    bullets.empty()
    ai_settings.increase_speed()
    create_target(ai_settings, screen, targets)

Answer 1

我知道问题出在哪里了！

基本上，当子弹移动太快时，碰撞不会被记录下来。所以让子弹的速度保持恒定。

Settings.py

class Settings():
"""A class to store all settings for Alien Invasion."""

def __init__(self):
    """Initialise the game's settings."""
    self.screen_width = 1200    # Screen settings
    self.screen_height = 800
    self.bg_colour = (230, 230, 230)


     # Bullet settings
    self.bullet_width = 15      # Make the width bigger than height for sideways bullet
    self.bullet_height = 3
    self.bullet_colour = 60, 60, 60
    self.bullets_allowed = 3


    self.missed_attempts = 3         # Missed attempts allowed

    self.speedup_scale = 1.1          # How quickly the game speeds up

    self.initialize_dynamic_settings()


def initialize_dynamic_settings(self):
    """Initialize settings that change throughout the game."""
    self.ship_speed_factor = 5
    self.bullet_speed_factor = 100


    self.target_speed_factor = 5  # Target settings
    # fleet_direction of 1 represents right; -1 represents left.
    self.target_direction = 1


def increase_speed(self):
    """Increase speed settings."""
    self.ship_speed_factor *= self.speedup_scale
    self.bullet_speed_factor *= 1     # Keep bullet speed constant
    self.target_speed_factor *= self.speedup_scale

一开始我让飞船，子弹和目标移动得更快，所以这就是问题所在。我希望每个人都能发现这是有帮助的！