12.3 火箭
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rocket_fly.py
# -*- coding:utf_8 -*-
"""
作者：蓝小武
日期：2022年01月13日
"""
import sys
import pygame
from rocket_settings import Settings
from rocket import Rocket
import rocket_functions as rf
def run_game():
"""初始化游戏并创建一屏幕对象"""
pygame.init()
ai_settings = Settings()
screen = pygame.display.set_mode(
(ai_settings.screen_width,ai_settings.screen_heigh))
pygame.display.set_caption("一飞冲天")
"""设置背景色"""
bg_color = (150,162,140)
'''创建一支火箭'''
rocket = Rocket(ai_settings,screen)
"""开始游戏的主循环"""
while True:
'''监视键盘和鼠标事件'''
rf.check_events(rocket)
rocket.update()
'''每次循环时都重绘屏幕'''
rf.update_screen(ai_settings,screen,rocket)
run_game()rocket_settings.py
# -*- coding:utf_8 -*-
"""
作者：蓝小武
日期：2022年01月13日
"""
class Settings():
"""存储《一飞冲天》的所有设置的类"""
def __init__(self):
'''初始化游戏的设置'''
self.screen_width = 1200
self.screen_heigh = 800
self.bg_color = (150,162,140)
self.rocket_speed_factor = 1.5 # -*- coding:utf_8 -*-
"""
作者：蓝小武
日期：2022年01月13日
"""
import pygame
class Rocket():
def __init__(self,ai_settings,screen):
'''初始化火箭并设置其初始位置'''
self.screen = screen
self.ai_settings = ai_settings
'''加载火箭图像并获取其外接矩形'''
self.image = pygame.image.load('images/rocket.bmp')
self.rect = self.image.get_rect()
self.screen_rect = screen.get_rect()
'''将每艘新火箭放在屏幕中央'''
self.rect.centerx = self.screen_rect.centerx
self.rect.centery = self.screen_rect.centery
'''在火箭的属性center中存储小数值'''
self.center1 = float(self.rect.centerx)
self.center2 = float(self.rect.centery)
'''移动标志'''
self.moving_right = False
self.moving_left = False
self.moving_up = False
self.moving_down = False
def update(self):
'''根据移动标志调整火箭的位置'''
'''更新火箭的center值，而不是rect'''
if self.moving_right and self.rect.right < self.screen_rect.right:
self.center1 += self.ai_settings.rocket_speed_factor
if self.moving_left and self.rect.left > 0:
self.center1 -= self.ai_settings.rocket_speed_factor
if self.moving_up and self.rect.top > 0:
self.center2 -= self.ai_settings.rocket_speed_factor
if self.moving_down and self.rect.bottom < self.screen_rect.bottom:
self.center2 += self.ai_settings.rocket_speed_factor
'''根据self.center更新rect对象'''
self.rect.centerx = self.center1
self.rect.centery = self.center2
def blitme(self):
'''在指定位置绘制火箭'''
self.screen.blit(self.image,self.rect)rocket_function.py
# -*- coding:utf_8 -*-
"""
作者：蓝小武
日期：2022年01月13日
"""
import sys
import pygame
def check_keydown_events(event,rocket):
'''响应按键'''
if event.key == pygame.K_RIGHT:
rocket.moving_right = True
elif event.key == pygame.K_LEFT:
rocket.moving_left = True
elif event.key == pygame.K_UP:
rocket.moving_up = True
elif event.key == pygame.K_DOWN:
rocket.moving_down = True
def check_keyup_events(event,rocket):
if event.key == pygame.K_RIGHT:
rocket.moving_right = False
elif event.key == pygame.K_LEFT:
rocket.moving_left = False
elif event.key == pygame.K_UP:
rocket.moving_up = False
elif event.key == pygame.K_DOWN:
rocket.moving_down = False
def check_events(rocket):
'''响应按键和鼠标事件'''
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
check_keydown_events(event,rocket)
elif event.type == pygame.KEYUP:
check_keyup_events(event,rocket)
def update_screen(ai_settings,screen,ship):
'''更新屏幕上的图像，并切换到新屏幕'''
'''每次循环时都重绘屏幕'''
screen.fill(ai_settings.bg_color)
ship.blitme()
'''让最近绘制的屏幕可见'''
pygame.display.flip()全部评论 (0)
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