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game_functions.py
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143 lines (108 loc) · 3.77 KB
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#coding: utf-8
import sys
import pygame
import bullet as BULLET
from bullet import *
from alien import *
from time import sleep
def check_keyup_event(event, ship):
"""按键释放事件响应"""
ship.stop()
def check_keydown_event(event, ship):
"""按键按下事件响应"""
if pygame.K_RIGHT == event.key:
# 向右移动飞船
ship.moving('right')
if pygame.K_LEFT == event.key:
# 向左移动飞船
ship.moving('left')
if pygame.K_SPACE == event.key:
# 空格键，飞船开火
ship.fire_bullets()
if pygame.K_ESCAPE == event.key:
sys.exit()
def check_event(ship):
"""检测按键事件"""
for event in pygame.event.get():
if pygame.QUIT == event.type:
sys.exit()
elif pygame.KEYDOWN == event.type:
check_keydown_event(event, ship)
elif pygame.KEYUP == event.type:
check_keyup_event(event, ship)
def redraw_ship(ship):
# 重绘飞船
ship.blitme()
def redraw_bullet(bullets):
# 在飞船和外星人后面重绘所有子弹
bullets.update()
for bullet in bullets.copy():
BULLET.delete_bullte(bullet, bullets)
for bullet in bullets.sprites():
bullet.draw_bullet()
# print len(bullets)
def redraw_alien(aliens):
for alien in aliens:
alien.update()
alien.blitme()
def redraw_scrren(bg_color, scrren, ship, aliens):
"""更新屏幕上的图像"""
# 1.重刷背景
scrren.fill(bg_color)
# 2.重绘飞船
redraw_ship(ship)
# 3.重绘子弹
redraw_bullet(ship.get_bullets())
# 4.重绘外星人
redraw_alien(aliens)
# 让最近绘图的屏幕可见
pygame.display.flip()
def creat_fleet_alien(screen, game_state, aliens, aliens_num):
"""创建一群外星人"""
for row in range(aliens_num['row_num']):
for alien in range(aliens_num['list_num']):
alien = Alien(screen)
aliens.add(alien)
def alien_short(scrren, game_state, aliens, ship, ai_settings):
"""判断子弹是否命中外星人"""
bullets = ship.get_bullets()
# 求子弹和外星人交集
collisions = pygame.sprite.groupcollide(aliens, bullets, True, False)
# 外星人都被消灭时重新创建外星人
if 0 == len(aliens):
bullets.empty()
alien_num = ai_settings.cal_alien_num_line_default(scrren)
creat_fleet_alien(scrren, game_state.game_state, aliens, alien_num)
ai_settings.set_alien_info_default(aliens, alien_num)
# print collisions
def shiphit_alienoverline(scrren, game_state, ship, aliens):
"""外星人和飞船碰撞和过线处理"""
for alien in aliens:
# 任意一个外星人过线
if 0 > alien.get_distance_wall_top():
game_state.game_state = 'stop'
break
if pygame.sprite.spritecollideany(ship, aliens):
game_state.game_state = 'stop'
if 'stop' == game_state.game_state:
if 0 == game_state.ships_left:
game_state.game_active = False
if game_state.game_active is True:
bullets = ship.get_bullets()
bullets.empty()
aliens.empty()
sleep(5)
game_state.ships_left -= 1
aliens_num = game_state.ai_settings.cal_alien_num_line_default(scrren)
creat_fleet_alien(scrren, game_state, aliens, aliens_num)
game_state.ai_settings.set_alien_info_default(aliens, aliens_num)
ship.center_ship()
game_state.game_state = 'running'
else:
sleep(5)
sys.exit()
# # elif 'running' == game_state.game_state:
# # if 0 == alien.get_distance_wall_top():
#
# if 0 == len(aliens):
# creat_fleet_alien(scrren, game_state, aliens, aliens_num)