python - 在第二阶段，当我击中敌人时出现错误

Question

（请注意，我是一个非常新的程序员，所以请深入解释你所做的一切）所以发生的事情是，在第一阶段，子弹可以正常击中地精，但是一旦我进入第二阶段，子弹击中地精，我得到一个错误说：

 Traceback (most recent call last):
  File "C:\Users\jacob\Desktop\Game\something.py", line 220, in <module>
bullets.pop(bullets.index(bullet))
ValueError: <__main__.projectile object at 0x06D0DBD0> is not in list

这是我的代码（注意缩进是错误的）：

import pygame
import random
pygame.init()

win = pygame.display.set_mode((500,480))

pygame.display.set_caption("First Game")

walkRight = [pygame.image.load('R1.png'), pygame.image.load('R2.png'), pygame.image.load('R3.png'), 
pygame.image.load('R4.png'), pygame.image.load('R5.png'), pygame.image.load('R6.png'), 
pygame.image.load('R7.png'), pygame.image.load('R8.png'), pygame.image.load('R9.png')]
walkLeft = [pygame.image.load('L1.png'), pygame.image.load('L2.png'), pygame.image.load('L3.png'), 
pygame.image.load('L4.png'), pygame.image.load('L5.png'), pygame.image.load('L6.png'), 
pygame.image.load('L7.png'), pygame.image.load('L8.png'), pygame.image.load('L9.png')]
bg = pygame.image.load('bg.jpg')
char = pygame.image.load('standing.png')

clock = pygame.time.Clock()

bulletSound = pygame.mixer.Sound('bullet.wav')
hitSound = pygame.mixer.Sound('hit.wav')
stage = 1
printStage = True
music = pygame.mixer.music.load('music.mp3')
pygame.mixer.music.play(-1)
goblinAlive = True
score = 0



class player(object):
def __init__(self,x,y,width,height):
    self.x = x
    self.y = y
    self.width = width
    self.height = height
    self.vel = 5
    self.isJump = False
    self.left = False
    self.right = False
    self.walkCount = 0
    self.jumpCount = 10
    self.standing = True
    self.hitbox = (self.x + 17, self.y + 11, 29, 52)

def draw(self, win):
    if self.walkCount + 1 >= 27:
        self.walkCount = 0

    if not(self.standing):
        if self.left:
            win.blit(walkLeft[self.walkCount//3], (self.x,self.y))
            self.walkCount += 1
        elif self.right:
            win.blit(walkRight[self.walkCount//3], (self.x,self.y))
            self.walkCount +=1
    else:
        if self.right:
            win.blit(walkRight[0], (self.x, self.y))
        else:
            win.blit(walkLeft[0], (self.x, self.y))
    self.hitbox = (self.x + 17, self.y + 11, 29, 52)
    #pygame.draw.rect(win, (255,0,0), self.hitbox,2)

def hit(self):
    self.x = 60
    self.y = 410
    self.walkCount = 0
    font1 = pygame.font.SysFont('comicsans', 100)
    text = font1.render('-5', 1, (255,0,0))
    win.blit(text, (250 - (text.get_width()/2),200))
    pygame.display.update()
    i = 0
    while i < 200:
        pygame.time.delay(10)
        i += 1
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                i = 201
                pygame.quit()



class projectile(object):
def __init__(self,x,y,radius,color,facing):
    self.x = x
    self.y = y
    self.radius = radius
    self.color = color
    self.facing = facing
    self.vel = 8 * facing

def draw(self,win):
    pygame.draw.circle(win, self.color, (self.x,self.y), self.radius)


class enemy(object):
walkRight = [pygame.image.load('R1E.png'), pygame.image.load('R2E.png'), 
pygame.image.load('R3E.png'), pygame.image.load('R4E.png'), pygame.image.load('R5E.png'), 
pygame.image.load('R6E.png'), pygame.image.load('R7E.png'), pygame.image.load('R8E.png'), 
pygame.image.load('R9E.png'), pygame.image.load('R10E.png'), pygame.image.load('R11E.png')]
walkLeft = [pygame.image.load('L1E.png'), pygame.image.load('L2E.png'), 
 pygame.image.load('L3E.png'), pygame.image.load('L4E.png'), pygame.image.load('L5E.png'), 
pygame.image.load('L6E.png'), pygame.image.load('L7E.png'), pygame.image.load('L8E.png'), 
pygame.image.load('L9E.png'), pygame.image.load('L10E.png'), pygame.image.load('L11E.png')]

def __init__(self, x, y, width, height, end):
    self.x = x
    self.y = y
    self.width = width
    self.height = height
    self.end = end
    self.path = [self.x, self.end]
    self.walkCount = 0
    self.vel = 3
    self.hitbox = (self.x + 17, self.y + 2, 31, 57)
    self.health = 10
    self.visible = True

def draw(self,win):
    self.move()
    if self.visible:
        if self.walkCount + 1 >= 33:
            self.walkCount = 0

        if self.vel > 0:
            win.blit(self.walkRight[self.walkCount //3], (self.x, self.y))
            self.walkCount += 1
        else:
            win.blit(self.walkLeft[self.walkCount //3], (self.x, self.y))
            self.walkCount += 1

        pygame.draw.rect(win, (255,0,0), (self.hitbox[0], self.hitbox[1] - 20, 50, 10))
        pygame.draw.rect(win, (0,128,0), (self.hitbox[0], self.hitbox[1] - 20, 50 - (5 * (10 - self.health)), 10))
        self.hitbox = (self.x + 17, self.y + 2, 31, 57)
        #pygame.draw.rect(win, (255,0,0), self.hitbox,2)

def move(self):
    if self.vel > 0:
        if self.x + self.vel < self.path[1]:
            self.x += self.vel
        else:
            self.vel = self.vel * -1
            self.walkCount = 0
    else:
        if self.x - self.vel > self.path[0] - y:
            self.x += self.vel
        else:
            self.vel = self.vel * -1
            self.walkCount = 0

def hit(self):
    for goblin in goblins:
        if self.health > 0:
            self.health -= 1
        else:
            self.visible = False
        print('hit')



def redrawGameWindow():
win.blit(bg, (0,0))
text = font.render('You Are On Stage: ' + str(stage), 1, (0,0,0))
win.blit(text, (10, 10))
text = font.render('Score: ' + str(score), 1, (0,0,0))
win.blit(text, (370, 10))
man.draw(win)
for goblin in goblins:
    goblin.draw(win)

for bullet in bullets:
    bullet.draw(win)

pygame.display.update()






#mainloop
font = pygame.font.SysFont('comicsans', 30, True)
printStageFont = pygame.font.SysFont('comicsans', 20, True)
man = player(30, 410, 64,64)
goblin = enemy(random.randint(100, 200), 410, 64, 64, random.randint(201, 490))
shootLoop = 0
goblins = []
bullets = []
run = True
while run:
clock.tick(27)

if man.y > 410:
    man.y = 410


while (len(goblins)) < stage:
    y = random.randint(100,200)
    goblins.append( enemy(y, 410, 64, 64, random.randint(201,490)) )

for goblin in goblins:                   
    if goblin.visible:
        if man.hitbox[1] < goblin.hitbox[1] + goblin.hitbox[3] and man.hitbox[1] + man.hitbox[3] > goblin.hitbox[1]:
            if man.hitbox[0] + man.hitbox[2] > goblin.hitbox[0] and man.hitbox[0] < goblin.hitbox[0] + goblin.hitbox[2]:
                man.hit()
                score -= 5
                goblin.x = 100
vel = 5
if shootLoop > 0:
    shootLoop += 1
if shootLoop > 15:
    shootLoop = 0

for event in pygame.event.get():
    if event.type == pygame.QUIT:
        run = False

for bullet in bullets:
    for goblin in goblins:

        if goblin.visible == True:

            for goblin in goblins: 
                if bullet.y - bullet.radius < goblin.hitbox[1] + goblin.hitbox[3] and bullet.y + bullet.radius > goblin.hitbox[1]:
                    if bullet.x + bullet.radius > goblin.hitbox[0] and bullet.x - bullet.radius < goblin.hitbox[0] + goblin.hitbox[2]:
                        hitSound.play()
                        goblin.hit()
                        score += 1
                        bullets.pop(bullets.index(bullet))

    if bullet.x < 500 and bullet.x > 0:
        bullet.x += bullet.vel
    else:
        bullets.pop(bullets.index(bullet))

keys = pygame.key.get_pressed()

if keys[pygame.K_z] and shootLoop == 0:
    bulletSound.play()
    if man.left:
        facing = -1
    else:
        facing = 1
    bullets.append(projectile(round(man.x + man.width //2), round(man.y + man.height//2), 6, (0,0,0), facing))

    shootLoop = 1

if keys[pygame.K_LEFT] and man.x > man.vel:
    man.x -= man.vel
    man.left = True
    man.right = False
    man.standing = False
elif keys[pygame.K_RIGHT]:

    if man.x == 500 and goblin.visible == False:
        man.x = 30
        stage += 1
        goblins = []
    if man.x > 500 - man.width - man.vel and goblin.visible == True:
        vel = 0
    else:

        man.x += man.vel
        man.right = True
        man.left = False
        man.standing = False
else:
    man.standing = True
    man.walkCount = 0

if not(man.isJump):
    if keys[pygame.K_SPACE]:
        man.isJump = True
        man.right = False
        man.left = False
        man.walkCount = 0
else:
    if man.jumpCount >= -10:
        neg = 1
        if man.jumpCount < 0:
            neg = -1
        man.y -= (man.jumpCount ** 2) * 0.5 * neg
        man.jumpCount -= 1
    else:
        man.isJump = False
        man.jumpCount = 10

redrawGameWindow()

pygame.quit()

标签： pythonpygame