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楼主 |
发表于 2018-6-12 14:25:28
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game_function
import sys
import pygame
from bullet import Bullet
def check_keydown_events(event,ship,ai_settings,screen,bullets):
if event.key==pygame.K_RIGHT:
ship.moving_right=True
elif event.key==pygame.K_LEFT:
ship.moving_left=True
elif event.key==pygame.K_UP:
ship.moving_up=True
elif event.key==pygame.K_DOWN:
ship.moving_down=True
elif event.key==pygame.K_SPACE:
new_bullet=Bullet(ai_settings,screen,ship)
bullets.add(new_bullet)
def check_keyup_events(event,ship):
if event.key==pygame.K_RIGHT:
ship.moving_right=False
elif event.key==pygame.K_LEFT:
ship.moving_left=False
elif event.key==pygame.K_UP:
ship.moving_up=False
elif event.key==pygame.K_DOWN:
ship.moving_down=False
def check_events(ship,ai_settings,screen,bullets):
for event in pygame.event.get():
if event.type==pygame.QUIT:
sys.exit()
elif event.type==pygame.KEYDOWN:
check_keydown_events(event,ship,ai_settings,bullets,screen)
elif event.type==pygame.KEYUP:
check_keyup_events(event,ship)
def update_screen(ai_settings,screen,ship,bullets):
screen.fill(ai_settings.bg_color)
for bullet in bullets.sprites():
bullet.draw_bullet()
ship.blitme()
pygame.display.flip()
settings.py
class Settings():
def __init__(self):
self.screen_width=900
self.screen_height=600
self.bg_color=(230,230,230)
self.ship_speed_factor=5
self.bullet_speed_factor=3
self.bullet_width=3
self.bullet_height=15
self.bullet_color=60,60,60
bullet.py
import pygame
from pygame.sprite import Sprite
class Bullet(Sprite):
def _init_(self,ai_settings,screen,ship):
super(Bullet,self)._init_()
self.screen=screen
self.rect=pygame.Rect(
0,0,ai_settings.bullet_width,ai_settings.bullet_height)
self.rect.centerx=ship.rect.centerx
self.rect.top=ship.rect.top
self.y=float(self.rect.y)
self.color=ai_settings.bullet_color
self.speed_factor=ai_settings.bullet_speed_factor
def update():
self.y-=self.speed_factor
self.rect.y=self,y
def draw_bullet(self):
pygame.draw.rect(self.screen,self.rect,self.color)
alien_invasion.py
import pygame
from pygame.sprite import Group
from settings import Settings
from ship import Ship
import game_functions as gf
def run_game():
pygame.init()
ai_settings=Settings()
screen=pygame.display.set_mode((ai_settings.screen_width,ai_settings.screen_height))
pygame.display.set_caption('Alien Invasion')
ship=Ship(ai_settings,screen)
bullets=Group()
while True:
screen.fill(ai_settings.bg_color)
ship.blitme()
pygame.display.flip()
gf.check_events(ai_settings,screen,ship,bullets)
ship.update()
bullets.update()
gf.update_screen(ai_settings,screen,ship,bullets)
run_game()
这些可以不 |
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