51 lines
1.6 KiB
Python
51 lines
1.6 KiB
Python
import pygame
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from pygame.sprite import Sprite
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class Ship(Sprite):
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def __init__(self, ai_settings, screen):
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"""初始化飞船并设置其初始位置"""
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super().__init__()
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self.ai_settings = ai_settings
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self.screen = screen
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# 加载飞船图像并获得其外接矩形
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self.image = pygame.image.load('images/ship.bmp')
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self.rect = self.image.get_rect()
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self.screen_rect = screen.get_rect()
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# 将飞船放在屏幕底部中央
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self.rect.centerx = self.screen_rect.centerx
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self.rect.bottom = self.screen_rect.bottom
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# 在飞船的属性center中储存小数值
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self.center = float(self.rect.centerx)
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# 移动标志
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self.moving_right = False
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self.moving_left = False
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# 无敌标志
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self.super_mode = False
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def update(self):
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"""根据移动标志调整飞船位置"""
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if self.moving_right and self.rect.right < self.screen_rect.right:
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self.center += self.ai_settings.ship_speed_factor
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if self.moving_left and self.rect.left > self.screen_rect.left:
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self.center -= self.ai_settings.ship_speed_factor
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self.rect.centerx = self.center
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def blitme(self):
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"""在指定位置绘制飞船"""
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self.screen.blit(self.image, self.rect)
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if self.super_mode:
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# 无敌模式，绘制金色边框
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pygame.draw.rect(self.screen, (200, 200, 0),(self.rect), 2)
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def center_ship(self):
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self.rect.centerx = self.screen_rect.centerx
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