问题:
1.如何按一下空格同时发射多枚子弹(一梭子一梭子
2.如何更改子弹发射时间间隔速度(一梭子和一梭子之间的间隔(频率
萌新初学,感谢感谢
#主程序
import sys
import pygame
from setting import Settings
from ship import Ship
from bullet import Bullet
class AlienInvasion:
def __init__(self):
pygame.init()
self.settings = Settings()
self.screen = pygame.display.set_mode(
(self.settings.screen_width,self.settings.screen_height))
pygame.display.set_caption("Alien Invasion")
self.ship = Ship(self)
self.bullets = pygame.sprite.Group()
self.open_fire =False
def _check_events(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
sys.exit()
elif event.type == pygame.KEYDOWN:
self._check_keydown_event(event)
elif event.type == pygame.KEYUP:
self._check_keyup_event(event)
def _check_keydown_event(self,event):
if event.key == pygame.K_RIGHT:
self.ship.moving_right = True
elif event.key == pygame.K_LEFT:
self.ship.moving_left = True
elif event.key == pygame.K_UP:
self.ship.moving_up = True
elif event.key == pygame.K_DOWN:
self.ship.moving_down = True
elif event.key == pygame.K_q:
sys.exit()
elif event.key == pygame.K_SPACE:
self.open_fire = True
def _check_keyup_event(self,event):
if event.key == pygame.K_RIGHT:
self.ship.moving_right = False
elif event.key == pygame.K_LEFT:
self.ship.moving_left = False
elif event.key == pygame.K_UP:
self.ship.moving_up = False
elif event.key == pygame.K_DOWN:
self.ship.moving_down = False
elif event.key == pygame.K_SPACE:
self.open_fire = False
def _fire_bullet(self):
if self.open_fire and len(self.bullets) < self.settings.bullets_allowed:
new_bullet = Bullet(self)
self.bullets.add(new_bullet)
def _update_bullets(self):
self.bullets.update()
for bullet in self.bullets.copy():#实时复制bullets中元素,删除的不会遍历
if bullet.rect.bottom <= 0:
self.bullets.remove(bullet)
def _update_screen(self):
self.screen.fill(self.settings.bg_color)
self.ship.blitme()
for bullet in self.bullets.sprites():
bullet.draw_bullet()
def run_game(self):
while True:
self._check_events()
self.ship.update()
self._update_bullets()
self._update_screen()
self._fire_bullet()
pygame.display.flip()
if __name__ == '__main__':
ai = AlienInvasion()
ai.run_game()
#bullet文件
import pygame
from pygame.sprite import Sprite
class Bullet(Sprite):
def __init__(self,ai_game):
super().__init__()
self.screen = ai_game.screen
self.settings = ai_game.settings
self.color = ai_game.settings.bullet_color
self.rect = pygame.Rect(0,0,
self.settings.bullet_width,self.settings.bullet_height)
self.rect.midtop = ai_game.ship.rect.midtop
self.y = float(self.rect.y)
def update(self):
self.y -= self.settings.bullet_speed
self.rect.y = self.y
def draw_bullet(self):
pygame.draw.rect(self.screen,self.color,self.rect)
#ship文件
import pygame
class Ship:
def __init__(self,ai_game):
self.screen = ai_game.screen
self.screen_rect = ai_game.screen.get_rect()
self.settings = ai_game.settings
self.image = pygame.image.load('images/ship.bmp')
self.rect = self.image.get_rect()
self.rect.midbottom = self.screen_rect.midbottom
self.x = float(self.rect.x)
self.y = float(self.rect.y)
self.moving_right = False
self.moving_left = False
self.moving_up = False
self.moving_down = False
def update(self):
if self.moving_right and self.rect.right < self.screen_rect.right:
self.x += self.settings.ship_speed
if self.moving_left and self.rect.left > 0:
self.x -= self.settings.ship_speed
if self.moving_down and self.rect.bottom < self.settings.screen_height:
self.y += self.settings.ship_speed
if self.moving_up and self.rect.y > 0:
self.y -= self.settings.ship_speed
self.rect.x = self.x
self.rect.y = self.y
def blitme(self):
self.screen.blit(self.image,self.rect)
#settings文件
class Settings:
def __init__(self):
self.screen_width = 1200
self.screen_height = 500
self.bg_color = (230,230,230)
self.ship_speed = 0.5
self.bullet_speed = 0.5
self.bullet_width = 3
self.bullet_height = 15
self.bullet_color = (60,60,60)
self.bullets_allowed = 5
相似问题