如何解决pygame.sprite.spritecollide 只删除敌人
我正在制作一个飞船游戏,你可以控制飞船并向敌人发射子弹。我现在试图让玩家和敌人的飞船在玩家和敌人碰撞时都消失。但是当我尝试使用 pygame.sprite.spritecollide 时,只有敌人消失了。为什么是这样?这是因为 spritecollide 只从其组中删除 sprites 吗? (我将 dokill 设置为 True)
这是我当前的代码:
import pygame
from pygame.locals import *
from random import randint
from tools import *
pygame.init()
pygame.font.init()
screen = pygame.display.set_mode((800,500))
class Spaceship(pygame.sprite.Sprite):
def __init__(self,s,x,y):
pygame.sprite.Sprite.__init__(self)
self.screen = s
self.x,self.y = x,y
self.image = pygame.image.load("spaceship.png")
self.image = pygame.transform.scale(self.image,(175,175))
self.rect = self.image.get_rect()
self.rect.center = (self.x,self.y)
def update(self):
self.rect.center = (self.x,self.y)
class Bullet(pygame.sprite.Sprite):
def __init__(self,y
self.image = pygame.image.load("bullet.png")
self.image = pygame.transform.scale(self.image,(100,100))
self.rect = self.image.get_rect()
self.rect.center = (self.x,self.y)
def update(self):
self.y -= 5
self.rect.center = (self.x,self.y)
if self.y < 0:
self.kill()
class Enemy(pygame.sprite.Sprite):
def __init__(self,y,t):
pygame.sprite.Sprite.__init__(self)
self.type = t
self.screen,self.x,self.y = s,y
self.image = pygame.image.load("enemy.png")
self.image = pygame.transform.scale(self.image,(235,215))
self.rect = self.image.get_rect()
self.rect = self.image.get_rect()
self.rect.center = (self.x,self.y)
self.score_given = get_enemy_given_score()[self.type]
def update(self):
if self.y < 0:
self.kill()
self.y += 3
self.rect.center = (self.x,self.y)
spaceship = Spaceship(screen,400,400)
bullets = pygame.sprite.Group()
enemies = pygame.sprite.Group()
clock = pygame.time.Clock()
enemy_interval = 5000 # It's in milliseconds
enemy_event = pygame.USEREVENT + 1
pygame.time.set_timer(enemy_event,enemy_interval)
score = 0
font = pygame.font.SysFont("Arial",30)
textsurface = font.render("score: {:,}".format(score),True,(0,0))
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
if event.type == MOUSEBUTTONDOWN:
bullet = Bullet(screen,spaceship.x,spaceship.y - 20)
bullets.add(bullet)
if event.type == enemy_event:
enemy = Enemy(screen,randint(-150,750),"normal")
enemies.add(enemy)
bullets.update()
key = pygame.key.get_pressed()
amount = 5
if key[pygame.K_a]:
spaceship.x -= amount
elif key[pygame.K_d]:
spaceship.x += amount
elif key[pygame.K_w]:
spaceship.y -= amount
elif key[pygame.K_s]:
spaceship.y += amount
spaceship.update()
screen.fill((255,255,255))
screen.blit(spaceship.image,spaceship.rect)
bullets.draw(screen)
enemies.draw(screen)
for i in enemies:
i.update()
if pygame.sprite.spritecollide(i,bullets,True):
score += i.score_given
i.kill()
if score >= 99999:
score = 99999
textsurface = font.render("score: {:,0))
screen.blit(textsurface,(590,0))
pygame.sprite.spritecollide(spaceship,enemies,dokill=True)
pygame.display.update()
clock.tick(60)
有人可以帮我吗?
解决方法
spaceship
不会“消失”,因为您只有 Spaceship
类的 1 个实例,并且您无法将其从 Groups (kill
) 中删除.如果你不想再看到飞船,就不要画它:
spaceship_collided = False
running = True
while running:
# [...]
if not spaceship_collided:
screen.blit(spaceship.image,spaceship.rect)
# [...]
if pygame.sprite.spritecollide(spaceship,enemies,dokill=True):
spaceship_collided = True
# [...]
另一种解决方案是使用 pygame.sprite.GroupSingle
:
spaceship_group = pygame.sprite.GroupSingle(Spaceship(screen,400,400))
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
if event.type == MOUSEBUTTONDOWN:
if len(spaceship_group) > 0:
spaceship = spaceship_group.sprites()[0]
bullet = Bullet(screen,spaceship.x,spaceship.y - 20)
bullets.add(bullet)
# [...]
spaceship_group.draw(screen)
# [...]
spaceship_group.update()
# [...]
pygame.sprite.groupcollide(spaceship_group,True,True)
# [...]
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