下面给出的 "Tetris" 游戏问题是什么问题？
What is the problem in the "Tetris" game problem given below?
所以基本上当我启动程序时一切看起来都很好，直到我尝试移动图形。
当我尝试移动数字 left 或 right 时，出现以下错误：
"local variable 'j' referenced before assignment".
当我尝试移动图形 down 时，弹出另一个错误
"'Tetris' object has no attribute 'width'".
我已经在代码中搜索了语法错误，但一无所获。
代码：
import pygame
import random
colors = [
(0,0,0),
(0,240,240),
(0,0,240),
(240,0,160),
(0,240,0),
(160,0,240),
(240,0,0)
]
class Figure:
x = 0
y = 0
Figures = [
[[1, 5, 9, 13], [4, 5, 6, 7]],
[[1, 2, 5, 9], [0, 4, 5, 6], [1, 5, 9, 8], [4, 5, 6, 10]],
[[1, 2, 6, 10], [5, 6, 7, 9], [2, 6, 10, 11], [3, 5, 6, 7]],
[[1, 2, 5, 6]],
[[6, 7, 9, 10], [1, 5, 6, 10]],
[[1, 4, 5, 6], [1, 4, 5, 9], [4, 5, 6, 9], [1, 5, 6, 9]],
[[4, 5, 9, 10], [2, 6, 5, 9]]
]
def __init__(self, x_coord, y_coord):
self.x = x_coord
self.y = y_coord
self.type = random.randint(0,len(self.Figures)-1)
self.color = colors[self.type+1]
self.rotation = 0
def image(self):
return self.Figures[self.type][self.rotation]
def rotate(self):
self.rotation = (self.rotation + 1) % len(self.Figures[self.type])
class Tetris:
height = 0
width = 0
field = []
score = 0
state = 'start'
Figure = None
def __init__(self, _height, _width):
self.height = _height
self.width = _width
self.field = []
self.score = 0
self.state = 'start'
for i in range(_height):
new_line = []
for j in range(_width):
new_line.append(0)
self.field.append(new_line)
self.new_figure()
def new_figure(self):
self.Figure = Figure(3, 0)
def go_down(self):
self.Figure.y += 1
if self.intersects():
self.Figure.y -= 1
self.freeze()
def side(self, dx):
old_x = self.Figure.x
edge = False
for i in range(4):
for j in j in range(4):
p = i * 4 + j
if p in self.Figure.image():
if j + self.Figure.x + dx > self.width -1 or \
j + self.Figure.x + dx < 0:
edge = True
if not edge:
self.Figure.x += dx
if self.intersects():
self.Figures = old_x
def left(self):
self.side(-1)
def right(self):
self.side(+1)
def down(self):
while not self.intersects():
self.Figure.y += 1
self.Figure.y -= 1
self.freeze()
def rotate(self):
old_rotation = self.Figure.rotation
self.Figure.rotate()
if self.intersects():
self.Figure.rotation = old_rotation
def intersects(self):
intersection = False
for i in range(4):
for j in range(4):
p = i * 4 + j
if p in self.Figure.image():
if i + self.Figure.y > self.height - 1 or \
i + self.Figure.y < 0 or \
self.field[i + self.Figure.y][j + self.Figure.x] > 0:
intersection = True
return intersection
def freeze(self):
for i in range(4):
for j in range(4):
p = i * 4 + j
if p in self.Figure.image():
self.field[i + self.Figure.y][j + self.Figure.x] = self.Figure.type
self.break_lines()
self.new_figure()
if self.intersects():
self.state == 'gameover'
def break_lines(self):
lines = 0
for i in range(1, self.height):
zeros = 0
for j in range(self.wifth):
if self.field[i][j] == 0:
zeros += 1
if zeros == 0:
lines += 1
for i2 in range(i, 1, -1):
for j in range(self.width):
self.field[i2][j] = self.field[i2 - 1][j]
self.score += lines ** 2
pygame.init()
screen = pygame.display.set_mode((380, 670))
pygame.display.set_caption('Tetris by Calvin')
done = False
fps = 2
clock = pygame.time.Clock()
counter = 0
zoom = 30
game = Tetris(20, 10)
pressing_down = False
pressing_left = False
pressing_right = False
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GRAY = (128, 128, 128)
while not done:
if game.state == 'start':
game.go_down()
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
game.rotate()
if event.key == pygame.K_DOWN:
pressing_down = True
if event.key == pygame.K_LEFT:
pressing_left = True
if event.key == pygame.K_RIGHT:
pressing_right = True
if event.type == pygame.KEYUP:
if event.key == pygame.K_DOWN:
pressing_down = False
if event.key == pygame.K_LEFT:
pressing_left = False
if event.key == pygame.K_RIGHT:
pressing_right = False
if pressing_down:
game.down()
if pressing_left:
game.left()
if pressing_right:
game.right()
screen.fill(color=WHITE)
for i in range(game.height):
for j in range(game.width):
if game.field[i][j] == 0:
color = GRAY
just_border = 1
else:
color = colors[game.field[i][j]]
just_border = 0
pygame.draw.rect(screen, color, [30+j*zoom, 30+i*zoom, zoom, zoom],just_border)
if game.Figure is not None:
for i in range(4):
for j in range(4):
p = i * 4 + j
if p in game.Figure.image():
pygame.draw.rect(screen, game.Figure.color,
[30+(j + game.Figure.x)*zoom, 30+(i+ game.Figure.y)*zoom, zoom, zoom])
gameover_font = pygame.font.SysFont('Calibri', 65, True, False)
text_gameover = gameover_font.render("Game Over!\n Press Esc", True, (255, 215, 0))
if game.state == "gameover":
screen.blit(text_gameover, [30,250])
score_font = pygame.font.SysFont('Calibri', 25, True, False)
text_score = score_font.render("Score: " + str(game.score), True, (0, 0, 0))
screen.blit(text_score, [0,0])
pygame.display.flip()
clock.tick(fps)
pygame.quit
你在第 77 行写了
for j in j in range(4):
而不是
for j in range(4):
第 134 行
self.wifth
应替换为
self.width
所以基本上当我启动程序时一切看起来都很好，直到我尝试移动图形。
当我尝试移动数字 left 或 right 时，出现以下错误：
"local variable 'j' referenced before assignment".
当我尝试移动图形 down 时，弹出另一个错误
"'Tetris' object has no attribute 'width'".
我已经在代码中搜索了语法错误，但一无所获。
代码：
import pygame
import random
colors = [
(0,0,0),
(0,240,240),
(0,0,240),
(240,0,160),
(0,240,0),
(160,0,240),
(240,0,0)
]
class Figure:
x = 0
y = 0
Figures = [
[[1, 5, 9, 13], [4, 5, 6, 7]],
[[1, 2, 5, 9], [0, 4, 5, 6], [1, 5, 9, 8], [4, 5, 6, 10]],
[[1, 2, 6, 10], [5, 6, 7, 9], [2, 6, 10, 11], [3, 5, 6, 7]],
[[1, 2, 5, 6]],
[[6, 7, 9, 10], [1, 5, 6, 10]],
[[1, 4, 5, 6], [1, 4, 5, 9], [4, 5, 6, 9], [1, 5, 6, 9]],
[[4, 5, 9, 10], [2, 6, 5, 9]]
]
def __init__(self, x_coord, y_coord):
self.x = x_coord
self.y = y_coord
self.type = random.randint(0,len(self.Figures)-1)
self.color = colors[self.type+1]
self.rotation = 0
def image(self):
return self.Figures[self.type][self.rotation]
def rotate(self):
self.rotation = (self.rotation + 1) % len(self.Figures[self.type])
class Tetris:
height = 0
width = 0
field = []
score = 0
state = 'start'
Figure = None
def __init__(self, _height, _width):
self.height = _height
self.width = _width
self.field = []
self.score = 0
self.state = 'start'
for i in range(_height):
new_line = []
for j in range(_width):
new_line.append(0)
self.field.append(new_line)
self.new_figure()
def new_figure(self):
self.Figure = Figure(3, 0)
def go_down(self):
self.Figure.y += 1
if self.intersects():
self.Figure.y -= 1
self.freeze()
def side(self, dx):
old_x = self.Figure.x
edge = False
for i in range(4):
for j in j in range(4):
p = i * 4 + j
if p in self.Figure.image():
if j + self.Figure.x + dx > self.width -1 or \
j + self.Figure.x + dx < 0:
edge = True
if not edge:
self.Figure.x += dx
if self.intersects():
self.Figures = old_x
def left(self):
self.side(-1)
def right(self):
self.side(+1)
def down(self):
while not self.intersects():
self.Figure.y += 1
self.Figure.y -= 1
self.freeze()
def rotate(self):
old_rotation = self.Figure.rotation
self.Figure.rotate()
if self.intersects():
self.Figure.rotation = old_rotation
def intersects(self):
intersection = False
for i in range(4):
for j in range(4):
p = i * 4 + j
if p in self.Figure.image():
if i + self.Figure.y > self.height - 1 or \
i + self.Figure.y < 0 or \
self.field[i + self.Figure.y][j + self.Figure.x] > 0:
intersection = True
return intersection
def freeze(self):
for i in range(4):
for j in range(4):
p = i * 4 + j
if p in self.Figure.image():
self.field[i + self.Figure.y][j + self.Figure.x] = self.Figure.type
self.break_lines()
self.new_figure()
if self.intersects():
self.state == 'gameover'
def break_lines(self):
lines = 0
for i in range(1, self.height):
zeros = 0
for j in range(self.wifth):
if self.field[i][j] == 0:
zeros += 1
if zeros == 0:
lines += 1
for i2 in range(i, 1, -1):
for j in range(self.width):
self.field[i2][j] = self.field[i2 - 1][j]
self.score += lines ** 2
pygame.init()
screen = pygame.display.set_mode((380, 670))
pygame.display.set_caption('Tetris by Calvin')
done = False
fps = 2
clock = pygame.time.Clock()
counter = 0
zoom = 30
game = Tetris(20, 10)
pressing_down = False
pressing_left = False
pressing_right = False
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
GRAY = (128, 128, 128)
while not done:
if game.state == 'start':
game.go_down()
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_UP:
game.rotate()
if event.key == pygame.K_DOWN:
pressing_down = True
if event.key == pygame.K_LEFT:
pressing_left = True
if event.key == pygame.K_RIGHT:
pressing_right = True
if event.type == pygame.KEYUP:
if event.key == pygame.K_DOWN:
pressing_down = False
if event.key == pygame.K_LEFT:
pressing_left = False
if event.key == pygame.K_RIGHT:
pressing_right = False
if pressing_down:
game.down()
if pressing_left:
game.left()
if pressing_right:
game.right()
screen.fill(color=WHITE)
for i in range(game.height):
for j in range(game.width):
if game.field[i][j] == 0:
color = GRAY
just_border = 1
else:
color = colors[game.field[i][j]]
just_border = 0
pygame.draw.rect(screen, color, [30+j*zoom, 30+i*zoom, zoom, zoom],just_border)
if game.Figure is not None:
for i in range(4):
for j in range(4):
p = i * 4 + j
if p in game.Figure.image():
pygame.draw.rect(screen, game.Figure.color,
[30+(j + game.Figure.x)*zoom, 30+(i+ game.Figure.y)*zoom, zoom, zoom])
gameover_font = pygame.font.SysFont('Calibri', 65, True, False)
text_gameover = gameover_font.render("Game Over!\n Press Esc", True, (255, 215, 0))
if game.state == "gameover":
screen.blit(text_gameover, [30,250])
score_font = pygame.font.SysFont('Calibri', 25, True, False)
text_score = score_font.render("Score: " + str(game.score), True, (0, 0, 0))
screen.blit(text_score, [0,0])
pygame.display.flip()
clock.tick(fps)
pygame.quit
你在第 77 行写了
for j in j in range(4):
而不是
for j in range(4):
第 134 行
self.wifth
应替换为
self.width