我正在制作平台游戏，如果玩家击中盒子，就会有加电盒。我希望当玩家从底部击打时发出能量。我有开机动画的帧索引。但是，每当我打方框时，都会出现此错误：“ IndexError：列表索引超出范围”。谁能解决这个问题？
Traceback (most recent call last):
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 1399, in <module>
main()
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game .
Copy.py", line 1361, in main
current_level.update()
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 863, in update
self.powerup_box_list.update()
File "/Users/qingduliu/Platformer/lib/python3.7/site-
packages/pygame/sprite.py", line 463, in update
s.update(*args)
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 601, in update
self.handle_states()
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 610, in handle_states
self.bumped()
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 643, in bumped
self.group.add(HealthPlus(self.rect.centerx, self.rect.y))
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 759, in __init__
super(HealthPlus, self).__init__(x, y, name)
File "/Users/qingduliu/PycharmProjects/Platformer/Video Game
Copy.py", line 675, in __init__
self.image = self.frames[self.frame_index]
IndexError: list index out of range
class Powerup(pygame.sprite.Sprite):
def __init__(self, x, y, contents=None, group=None):
super().__init__()
self.sprite_sheet = SpriteSheet('tiles_spritesheet.png')
self.frames = []
self.setup_frames()
self.frame_index = 0
self.image = self.frames[self.frame_index]
self.rect = self.image.get_rect()
self.rect.x = x
self.rect.y = y
self.animation_timer = 0
self.first_half = True # First half of animation cycle
self.state = RESTING
self.rest_height = y
self.gravity = 1.2
self.y_vel = 0
self.items_available = 1
self.contents = contents
self.group = group
def update(self):
self.handle_states()
def handle_states(self):
if self.state == RESTING:
self.resting()
elif self.state == BUMPED:
self.bumped()
elif self.state == OPENED:
self.opened()
def resting(self):
now = pygame.time.get_ticks()
if self.first_half:
if self.frame_index == 0:
if (now - self.animation_timer) > 600:
self.frame_index += 1
self.animation_timer = now
self.first_half = False
else:
if self.frame_index == 1:
if (now - self.animation_timer) > 300:
self.frame_index -= 1
self.first_half = True
self.animation_timer = now
self.image = self.frames[self.frame_index]
def bumped(self):
self.rect.y += self.y_vel
self.y_vel += self.gravity
if self.rect.y > self.rest_height + 5:
self.rect.y = self.rest_height
self.state = OPENED
if self.contents == 'health plus':
self.group.add(HealthPlus(self.rect.centerx,
self.rect.y))
elif self.contents == 'double attack':
self.group.add(DoubleAttack(self.rect.centerx,
self.rect.y))
elif self.contents == 'half damage':
self.group.add(HalfDamage(self.rect.centerx,
self.rect.y))
self.frame_index = 2
self.image = self.frames[self.frame_index]
def start_bump(self):
self.y_vel = -6
self.state = BUMPED
if self.contents == 'coin':
self.group.add(Coin(self.rect.centerx, self.rect.y,))
def opened(self):
pass
class Powerup(pygame.sprite.Sprite):
def __init__(self, x, y, name):
super(Powerup, self).__init__()
self.sprite_sheet = SpriteSheet('items1_spritesheet.png')
self.frames = []
self.frame_index = 0
self.image = self.frames[self.frame_index]
self.rect = self.image.get_rect()
self.rect.centerx = x
self.rect.y = y
self.state = REVEALED
self.y_vel = -1
self.x_vel = 0
self.direction = RIGHT
self.box_height = y
self.gravity = 1
self.max_y_vel = 8
self.animate_timer = 0
self.name = name
def setup_powerup(self, x, y, name, create_frames):
self.sprite_sheet = SpriteSheet('items1_spritesheet')
self.frames = []
self.frame_index = 0
create_frames()
self.image = self.frames[self.frame_index]
self.rect = self.image.get_rect()
self.rect.centerx = x
self.rect.y = y
self.state = REVEALED
self.y_vel = -1
self.x_vel = 0
self.direction = RIGHT
self.box_height = y
self.gravity = 1
self.max_y_vel = 8
self.animate_timer = 0
self.name = name
def get_image(self, x, y, width, height):
image = pygame.Surface([width, height]).convert()
rect = image.get_rect()
image.blit(self.sprite_sheet.sprite_sheet, (0, 0), (x, y,
width, height))
image.set_colorkey(BLACK)
image = pygame.transform.scale(image, (int(rect.width * 0.9),
int(rect.height * 0.9)))
return image
def update(self, game_info):
self.handle_states()
def handle_state(self):
pass
def revealing(self):
self.rect.y += self.y_vel
if self.rect.bottom <= self.box_height:
self.rect.bottom = self.box_height
self.y_vel = 0
self.state = SLIDE
def sliding(self):
if self.direction == RIGHT:
self.x_vel = 3
else:
self.x_vel = -3
def falling(self):
if self.y_vel < self.max_y_vel:
self.y_vel += self.gravity
class HealthPlus(Powerup):
def __init__(self, x, y, name='health plus'):
super(HealthPlus, self).__init__(x, y, name)
self.setup_powerup(x, y, name, self.create_frames)
def create_frames(self):
self.frames.append(self.get_image(144, 218, 70, 70))
def handle_state(self):
if self.state == REVEALED:
self.revealing()
elif self.state == SLIDE:
self.sliding()
elif self.state == FALL:
self.falling()
class Player(pygame.sprite.Sprite):
def __init__(self)
super().__init__()
# Attributes
def update(self):
powerup_box_hit_list = pygame.sprite.spritecollide(self,
self.level.powerup_box_list, False)
for powerup_box in powerup_box_hit_list:
if self.change_y > 0:
self.rect.bottom = powerup_box.rect.top
elif self.change_y < 0:
self.rect.top = powerup_box.rect.bottom
powerup_box.start_bump()
self.change_y = 0
答案 0 :(得分：1)
您已经初始化了frames数组，但是没有添加任何值。 如果不将值添加到框架数组，则会收到索引超出范围错误。
self.image = self.frames [self.frame_index]
在上一行中，您尝试从self.frames的索引self.frame_index访问值。但是数组中没有可用的值。