我的游戏水平遇到了麻烦，我想知道为什么我的游戏中的敌人没有从屏幕顶部掉下来，我试图制作关卡，但我的班级水平不起作用。有人请帮忙！
我的代码：
import pygame
import random
# Define some colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
BLUE = (0, 0, 255)
LAV = (209, 95, 250)
#Enemy
class Block(pygame.sprite.Sprite):
""" This class represents the block. """
def __init__(self, color):
# Call the parent class (Sprite) constructor
super().__init__()
self.image = pygame.image.load("enemy2.png")
self.rect = self.image.get_rect()
def reset_pos(self):
self.rect.y = random.randrange(-300,-20)
self.rect.x = random.randrange(0,screen_width)
#Player
class Player(pygame.sprite.Sprite):
""" This class represents the Player. """
def __init__(self):
""" Set up the player on creation. """
# Call the parent class (Sprite) constructor
super().__init__()
self.image = pygame.image.load("SS1.png")
self.rect = self.image.get_rect()
#Controls
def update(self):
""" Update the player's position. """
# Get the current mouse position. This returns the position
# as a list of two numbers.
pos = pygame.mouse.get_pos()
# Set the player x position to the mouse x position
self.rect.x = pos[0]
class Bullet(pygame.sprite.Sprite):
""" This class represents the bullet . """
def __init__(self):
# Call the parent class (Sprite) constructor
super().__init__()
self.image = pygame.image.load("fireball2.png")
self.rect = self.image.get_rect()
def update(self):
""" Move the bullet. """
self.rect.y -= 6
# --- Create the window
# Initialize Pygame
pygame.init()
pygame.display.set_caption("Space Shooter")
# Set the height and width of the screen
screen_width = 850
screen_height = 850
screen = pygame.display.set_mode([screen_width, screen_height])
BG = pygame.image.load("Bg.png")
# --- Sprite lists
# This is a list of every sprite. All blocks and the player block as well.
all_sprites_list = pygame.sprite.Group()
# List of each block in the game
block_list = pygame.sprite.Group()
# List of each bullet
bullet_list = pygame.sprite.Group()
# --- Create the sprites
class Level():
""" This is a generic super-class used to define a level.
Create a child class for each level with level-specific
info. """
def __init__(self, player):
""" Constructor. Pass in a handle to player. Needed for when moving
platforms collide with the player. """
self.platform_list = pygame.sprite.Group()
self.enemy_list = pygame.sprite.Group()
self.player = player
# How far this world has been scrolled left/right
self.world_shift = 0
# Update everythign on this level
def update(self):
""" Update everything in this level."""
self.platform_list.update()
self.enemy_list.update()
def draw(self, screen):
""" Draw everything on this level. """
# Draw the background
screen.fill(BLUE)
# Draw all the sprite lists that we have
self.platform_list.draw(screen)
self.enemy_list.draw(screen)
def shift_world(self, shift_x):
""" When the user moves left/right and we need to scroll
everything: """
# Keep track of the shift amount
self.world_shift += shift_x
# Go through all the sprite lists and shift
for platform in self.platform_list:
platform.rect.x += shift_x
for enemy in self.enemy_list:
enemy.rect.x += shift_x
# Create platforms for the level
class Level_01(Level):
""" Definition for level 1. """
def __init__(self, player):
""" Create level 1. """
# Call the parent constructor
Level.__init__(self, player)
self.level_limit = 10
for i in range(15):
# This represents a block
block = Block(BLUE)
# Set a random location for the block
block.rect.x = random.randrange(825)
block.rect.y = random.randrange(500)
# Add the block to the list of objects
block_list.add(block)
all_sprites_list.add(block)
# Create a red player block
class Level_02(Level):
""" Definition for level 2. """
def __init__(self, player):
""" Create level 1. """
# Call the parent constructor
Level.__init__(self, player)
self.level_limit = -3000
# Array with type of platform, and x, y location of the platform.
for i in range(30):
# This represents a block
block = Block(BLUE)
# Set a random location for the block¸
block.rect.x = random.randrange(650)
block.rect.y = random.randrange(350)
# Add the block to the list of objects
block_list.add(block)
all_sprites_list.add(block)
# Go through the arrzay above and add platforms
player = Player()
all_sprites_list.add(player)
# Loop until the user clicks the close button.
done = False
# Used to manage how fast the screen updates
clock = pygame.time.Clock()
font = pygame.font.Font(None, 25)
frame_count = 0
frame_rate = 60
start_time = 90
score = 0
player.rect.y = 600
bg_sound = pygame.mixer.Sound("Countdown - Timer.wav")
fire_sound = pygame.mixer.Sound("Laser-SoundBible.com-602495617.wav")
bg_sound.play(-1)
# -------- Main Program Loop -----------
while not done:
# --- Event Processing
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
elif event.type == pygame.MOUSEBUTTONDOWN:
# Fire a bullet if the user clicks the mouse button
bullet = Bullet()
# Set the bullet so it is where the player is
bullet.rect.x = player.rect.x
bullet.rect.y = player.rect.y
# Add the bullet to the lists
all_sprites_list.add(bullet)
bullet_list.add(bullet)
fire_sound.play()
# --- Game logic
# Call the update() method on all the sprites
all_sprites_list.update()
# Calculate mechanics for each bullet
for bullet in bullet_list:
# See if it hit a block
block_hit_list = pygame.sprite.spritecollide(bullet, block_list, True)
# For each block hit, remove the bullet and add to the score
for block in block_hit_list:
bullet_list.remove(bullet)
all_sprites_list.remove(bullet)
score += 1
print(score)
# Remove the bullet if it flies up off the screen
if bullet.rect.y < -50:
bullet_list.remove(bullet)
all_sprites_list.remove(bullet)
# --- Draw a frame
screen.blit(BG, [0, 0])
# Clear the screen
font = pygame.font.SysFont('Calibri', 25,True, False)
text = font.render('Enemies Shot:'+ str(score),True, LAV)
screen.blit(text,[650,500])
# Draw all the spites
all_sprites_list.draw(screen)
total_seconds = start_time - (frame_count // frame_rate)
if total_seconds == 0:
font = pygame.font.SysFont('Calibri', 25,True, False)
text = font.render('YOURE DONE',True, LAV)
screen.blit(text,[650,500])
# Divide by 60 to get total minutes
minutes = total_seconds // 60
# Use modulus (remainder) to get seconds
seconds = total_seconds % 60
# Use python string formatting to format in leading zeros
output_string = "Time left: {0:00}:{1:02}".format(minutes, seconds)
# Blit to the screen
text = font.render(output_string, True, LAV)
screen.blit(text, [650, 525])
# ALL CODE TO DRAW SHOULD GO ABOVE THIS COMMENT
frame_count += 10
# Limit frames per second
clock.tick(frame_rate)
# Go ahead and update the screen with what we've drawn.
pygame.display.flip()
pygame.quit()
答案 0 :(得分：0)
您可能需要注意的一件事是在更新所有项目符号后清除屏幕。我建议将屏幕清除为while循环中的第一个内容。另一件事是我没有看到你试图移动敌人的任何地方（我可能是错的）。 Block类中的这个函数可能会有所帮助：
def render(self):
self.rect.y +=3
您可以在渲染功能中更改块的移动方式，这只是一个例子 输入之后，您需要输入类似的内容：
for block in block_list:
block.render()
在你清除它之后，这将在你的while循环中进行。您可能需要为此设置阻止列表。希望这会有所帮助：）