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ship.py

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+# 胡小小Python学习之路
+# 外星人入侵小游戏
+# ship.py
+# 管理飞船行为的类
+import pygame
+from pygame.sprite import Sprite
+
+
+class Ship(Sprite):
+    def __init__(self, ai_settings, screen):
+        super().__init__()
+        self.screen = screen
+        self.ai_settings = ai_settings
+        self.image = pygame.image.load('C:\Users\DELL\pythonwork/ship.bmp')
+        self.rect = self.image.get_rect()
+        self.screen_rect = screen.get_rect()
+
+        self.rect.centerx = self.screen_rect.centerx
+        self.rect.bottom = self.screen_rect.bottom
+
+        self.center = float(self.rect.centerx)
+
+        self.moving_right = False
+        self.moving_left = False
+
+    def update(self):
+        if self.moving_right and self.rect.right < self.screen_rect.right:
+            self.center += self.ai_settings.ship_speed
+        if self.moving_left and self.rect.left > 0:
+            self.center -= self.ai_settings.ship_speed
+        self.rect.centerx = self.center
+
+    def blitme(self):
+        self.screen.blit(self.image, self.rect)
+
+    def center_ship(self):
+        self.center = self.screen_rect.centerx
+
+