Python编写一个stg

很高兴回答您的问题！以下是一个简单的 Python STG 游戏实现的示例代码：

import pygame
import random

# 初始化
pygame.init()

# 设置游戏界面宽、高
screen_width = 480
screen_height = 640
screen = pygame.display.set_mode((screen_width, screen_height))
pygame.display.set_caption("STG Game")

# 载入玩家图片
player_img = pygame.image.load("player.png")
player_size = player_img.get_rect().size
player_width = player_size[0]
player_height = player_size[1]
player_x_pos = (screen_width - player_width) / 2
player_y_pos = screen_height - player_height

# 载入敌人图片
enemy_img = pygame.image.load("enemy.png")
enemy_size = enemy_img.get_rect().size
enemy_width = enemy_size[0]
enemy_height = enemy_size[1]
enemy_x_pos = random.randint(0, screen_width - enemy_width)
enemy_y_pos = 0
enemy_speed = 10

# 设置时钟
clock = pygame.time.Clock()

# 游戏循环
running = True
while running:
    # 设置刷新率
    dt = clock.tick(60)

    # 事件循环
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False

    # 移动玩家
    keys = pygame.key.get_pressed()
    if keys[pygame.K_LEFT]:
        player_x_pos -= 5
    elif keys[pygame.K_RIGHT]:
        player_x_pos += 5
    elif keys[pygame.K_UP]:
        player_y_pos -= 5
    elif keys[pygame.K_DOWN]:
        player_y_pos += 5

    # 移动敌人
    enemy_y_pos += enemy_speed
    
    # 碰撞检测
    if player_x_pos + player_width > enemy_x_pos and \
        player_x_pos < enemy_x_pos + enemy_width and \
        player_y_pos + player_height > enemy_y_pos and \
        player_y_pos < enemy_y_pos + enemy_height:
        print("Game Over!")
        running = False

    # 绘制游戏界面
    screen.blit(player_img, (player_x_pos, player_y_pos))
    screen.blit(enemy_img, (enemy_x_pos, enemy_y_pos))
    pygame.display.update()

# 退出游戏
pygame.quit()

只要运行这段代码，您就可以在窗口中看到一个玩家和一个从顶部下落的敌人。您可以使用箭头键来控制玩家的移动。当玩家和敌人碰撞时，游戏将结束。

祝您玩得愉快！