0529

pythonProject重生版/003.py

@@ -115,7 +115,52 @@ class Bullet(object):
         # 速度
         self.speed = 20
 
+    def display(self):
+        """显示子弹到窗口"""
+        self.screen.blit(self.image, (self.x, self.y))
+
+    def auto_move(self):
+        """让子弹飞 修改子弹y坐标"""
+        self.y -= self.speed
+
+
+# 敌方子弹类
+# 属性
+class EnemyBullet(object):
+    def __init__(self, screen, x, y):
+        # 坐标
+        self.x = x + 50 / 2 - 8 / 2
+        self.y = y + 39
+        # 图片
+        self.image = pygame.image.load('./feiji/bullet1.png')
+        # 窗口
+        self.screen = screen
+        # 速度
+        self.speed = 20
+
+    def display(self):
+        """显示子弹到窗口"""
+        self.screen.blit(self.image, (self.x, self.y))
+
+    def auto_move(self):
+        """让子弹飞 修改子弹y坐标"""
+        self.y += self.speed
+
+
+class GameSound(object):
+    def __init__(self):
+        pygame.mixer.init()  # 音乐模块初始化
+        pygame.mixer.music.load('./feiji/bg2.ogg')
+        pygame.mixer.music.set_volume(0.5)  # 声音大小
+
+    def playBackgroundMusic(self):
+        pygame.mixer.music.play(-1)  # 开始播放音乐
+
+
 def main():
+    """完成整个程序的控制"""
+    sound = GameSound()
+    sound.playBackgroundMusic()
 
     # 1. 创建一个窗口，用来显示内容
     screen = pygame.display.set_mode((480, 852), 0, 32)