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ship.py
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48 lines (35 loc) · 1.54 KB
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# -*- coding: utf-8 -*-
import pygame
from pygame.sprite import Sprite
class Ship(Sprite):
def __init__(self,ai_settings,screen):
"""初始化"""
super(Ship, self).__init__()
self.screen = screen
self.ai_settings = ai_settings
self.image = pygame.image.load('images/ship1.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.centerx = float(self.rect.centerx)
self.centery = float(self.rect.centery)
self.moving_right = False
self.moving_left = False
self.moving_down = False
self.moving_up = False
def update(self):
if self.moving_right and self.rect.right < self.screen_rect.right:
self.centerx += self.ai_settings.ship_speed_factor
if self.moving_left and self.rect.left > 0:
self.centerx -= self.ai_settings.ship_speed_factor
if self.moving_down and self.rect.bottom < self.screen_rect.bottom:
self.centery += self.ai_settings.ship_speed_factor
if self.moving_up and self.rect.top > 0:
self.centery -= self.ai_settings.ship_speed_factor
self.rect.centerx = self.centerx
self.rect.centery = self.centery
def blitme(self):
self.screen.blit(self.image,self.rect)
def center_ship(self):
self.center = self.screen_rect.centerx