World War II aircraft - game framework to build

1, clear main responsibility

A game can be divided into two main parts:

Game initialization
game loop

1.1 game initialization

Game Initialization - - __init __ ()

Setting the game window
to create the game clock
to create sprites, elves group
to create a scheduled task

Call the method:

__event_handler (self) event listeners
__check_collide (self) collision detection - - the destruction of enemy bullets, enemy planes crashing into the Heroes
__update_sprites (self) Elf group update and draw
__game_over () Game Over

1.2 game initialization code implementation

import pygame
from Aircraft_War.plane_sprites import *
class PlaneGame(object):

def __init__(self):

self.screen = pygame.display.set_mode(SCREEN_RECT.size)
self.clock = pygame.time.Clock()
self.__create_sprites()
pygame.time.set_timer(CREATE_ENEMY_EVENT, 1000)
pygame.time.set_timer(HERO_FIRE_EVENT, 500)

def __create_sprites(self):

bg1 = Background()
bg2 = Background(True)
self.back_group = pygame.sprite.Group(bg1, bg2)
self.enemy_group = pygame.sprite.Group()
self.hero = Hero()
self.hero_group = pygame.sprite.Group(self.hero)

1.3, start method

def start_game(self):

while True:

self.clock.tick(FRAME_PER_SEC)
self.__event_handler()
self.__check_collide()
self.__update_sprites()
pygame.display.update()

1.4, __ event_handler method

def __event_handler(self):

for event in pygame.event.get():

if event.type == pygame.QUIT:
PlaneGame.__game_over()
elif event.type == CREATE_ENEMY_EVENT:
enemy = Enemy()
self.enemy_group.add(enemy)
elif event.type == HERO_FIRE_EVENT:
self.hero.fire()

Key_pressed = pygame.key.get_pressed()

if Key_pressed[pygame.K_RIGHT]:
self.hero.speed = 2
elif Key_pressed[pygame.K_LEFT]:
self.hero.speed = -2
else:
self.hero.speed = 0

1.5, __ check_collide method

def __check_collide(self):

pygame.sprite.groupcollide(self.hero.bullets, self.enemy_group, True, True)
enemise = pygame.sprite.spritecollide(self.hero, self.enemy_group, True)
if len(enemise) > 0:
self.hero.kill()
PlaneGame.__game_over()

1.6、____update_sprites方法

def __update_sprites(self):

self.back_group.update()
self.back_group.draw(self.screen)
self.enemy_group.update()
self.enemy_group.draw(self.screen)
self.hero_group.update()
self.hero_group.draw(self.screen)
self.hero.bullets.update()
self.hero.bullets.draw(self.screen)

1.7, ____ game_over method

@staticmethod
def __game_over():
pygame.QUIT()
exit()

1.7, the main program method

if __name__ == '__main__':

game = PlaneGame()
game.start_game()