python小游戏飞机大战空格发射子弹报错,添加旋转代码后陨石一直变大,不知道哪里出错了
import pygame
import random
import os
FPS=60
WHITE=(255,255,255)
GREEN=(0,255,0)
RED=(255,0,0)
YELLOW=(0,0,255)
BLACK=(0,0,0)
WIDTH=500
HEIGHT=600
pygame.init()
screen=pygame.display.set_mode((WIDTH,HEIGHT))
pygame.display.set_caption("飞机大战")
clock=pygame.time.Clock()
#载入图片
background_img=pygame.image.load(os.path.join("img","background.png")).convert()
player_img=pygame.image.load(os.path.join("img","player.png")).convert()
rock_img=pygame.image.load(os.path.join("img","rock.png")).convert()
bullet_img=pygame.image.load(os.path.join("img","bullet.png")).convert()
font_name=pygame.font.match_font('arail')
def draw_text(surf,text,size,x,y):
font=pygame.font.Font(font_name,size)
text_surface=font.render(text,True,WHITE)
text_rect=text_surface.get_rect()
text_rect.centerx=x
text_rect.top=y
surf.blit(text_surface,text_rect)
class Player(pygame.sprite.Sprite):
def __init__(self):
pygame.sprite.Sprite.__init__(self)
self.image=player_img
self.rect=self.image.get_rect()
self.rect.centerx=WIDTH/2
self.rect.bottom=HEIGHT-10
self.speedx=10
def update(self):
key_pressed=pygame.key.get_pressed()
if key_pressed[pygame.K_RIGHT]:
self.rect.x +=self.speedx
if key_pressed[pygame.K_LEFT]:
self.rect.x -=self.speedx
if self.rect.right>WIDTH:
self.rect.right=WIDTH
if self.rect.left<0:
self.rect.left=0
def shoot(self):
bullets=Bullet(self.rect.centerx,self.rect.top)
all_sprites.add(bullets)
bullets.add(bullets)
class Bullet(pygame.sprite.Sprite):
def __init__(self,x,y):
pygame.sprite.Sprite.__init__(self)
self.image=bullet_img
self.rect=self.image.get_rect()
self.rect.centerx=x
self.rect.bottom=y
self.speedy=-10
def update(self):
self.rect.y+=self.speedy
if self.rect.bottom<0:
self.kill()
class Rock(pygame.sprite.Sprite):
def __init__(self):
pygame.sprite.Sprite.__init__(self)
self.image_ori=rock_img
self.image=self.image_ori.copy()
self.rect=self.image.get_rect()
self.radius=int(self.rect.width*0.85/2)
self.rect.x=random.randrange(0,WIDTH-self.rect.width)
self.rect.y=random.randrange(-180,-100)
self.speedy=random.randrange(2,10)
self.speedx=random.randrange(-3,3)
self.total_degree=0
self.rot_degree=random.randrange(-3,3)
def rotate(self):
self.total_degree+=self.rot_degree
self.rot_degree=self.total_degree%360
self.image=pygame.transform.rotate(self.image,self.rot_degree)
center=self.rect.center
self.rect=self.image.get_rect()
self.rect.center=center
def update(self):
self.rotate()
self.rect.y+=self.speedy
self.rect.x+=self.speedx
if self.rect.top>HEIGHT or self.rect.left>WIDTH or self.rect.right<0:
self.rect.x=random.randrange(0,WIDTH-self.rect.width)
self.rect.y=random.randrange(-100,-40)
self.speedy=random.randrange(2,10)
self.speedx=random.randrange(-3,3)
all_sprites=pygame.sprite.Group()
rocks=pygame.sprite.Group()
bullets=pygame.sprite.Group()
player=Player()
all_sprites.add(player)
rock=Rock()
all_sprites.add(rock)
for i in range(8):
r=Rock()
all_sprites.add(r)
rocks.add(r)
score=0
running=True
while running:
clock.tick(FPS)
for event in pygame.event.get():
if event.type==pygame.QUIT:
running=False
elif event.type==pygame.KEYDOWN:
if event.key==pygame.K_SPACE:
player.shoot()
all_sprites.update()
hits=pygame.sprite.groupcollide(rocks,bullets,True,True)
for hit in hits:
score+=hit.radius
r=Rock()
all_sprites.add(r)
rocks.add(r)
hits=pygame.sprite.spritecollide(player,rocks,False)
if hits:
running=False
screen.fill(BLACK)
screen.blit(background_img,(0,0))
all_sprites.draw(screen)
draw_text(screen,str(score),18,WIDTH/2,10)
pygame.display.update()
pygame.quit()
空格报错
陨石不断变大占满全屏