我正在制作这个游戏，它曾经可以工作，但是当我尝试编辑它时，它给了我一个错误。这是代码和错误：
import pygame
from pygame import *
WIN_WIDTH = 800
WIN_HEIGHT = 640
HALF_WIDTH = int(WIN_WIDTH / 2)
HALF_HEIGHT = int(WIN_HEIGHT / 2)
DISPLAY = (WIN_WIDTH, WIN_HEIGHT)
DEPTH = 32
FLAGS = 0
CAMERA_SLACK = 30
Currentlvl = 'L_1'
def Main():
global cameraX, cameraY
pygame.init()
screen = pygame.display.set_mode(DISPLAY, FLAGS, DEPTH)
pygame.display.set_caption("Adventure/RPG!")
timer = pygame.time.Clock()
up = down = left = right = running = False
bg = Surface((32,32))
bg.convert()
bg.fill(Color("#000000"))
entities = pygame.sprite.Group()
player = Player(32, 32)
Borders = []
Trees = []
x = y = 0
for row in Currentlvl :
for col in row:
if col == "B":
b = Border(x, y)
Borders.append(b)
entities.add(b)
if col == "T":
t = Tree(x, y)
Trees.append(t)
entities.add(t)
x += 32
y += 32
x = 0
if Currentlvl == L_1:
L_1 = [
"BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",]
if Currentlvl == L_2:
L_2 = [
"BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B B",
"B T B",
"B B",
"B B",
"B B",
"B B",
"B T B",
"B B",
"B B",
"B B",
"BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB",]
total_level_width = len(Currentlvl)*32
total_level_height = len(Currentlvl)*32
camera = Camera(complex_camera, total_level_width, total_level_height)
entities.add(player)
while 1:
time.tick(60)
for e in pygame.event.get():
if e.type == QUIT: raise SystemExit, "QUIT"
if e.type == KEYDOWN and e.key == K_ESCAPE:
raise SystemExit, "ESCAPE"
if e.type == KEYDOWN and e.key == K_UP:
up = True
if e.type == KEYDOWN and e.key == K_DOWN:
down = True
if e.type == KEYDOWN and e.key == K_LEFT:
left = True
if e.type == KEYDOWN and e.key == K_RIGHT:
right = True
if e.type == KEYDOWN and e.key == K_SPACE:
running = True
if e.type == KEYUP and e.key == K_UP:
up = False
if e.type == KEYUP and e.key == K_DOWN:
down = False
if e.type == KEYUP and e.key == K_RIGHT:
right = False
if e.type == KEYUP and e.key == K_LEFT:
left = False
for y in range(32):
for x in range(32):
screen.blit(bg, (x * 32, y * 32))
camera.update(player)
player.update(up, down, left, right, running, Borders, Trees)
for e in entities:
screen.blit(e.image, camera.apply(e))
pygame.display.update()
class Camera(object):
def __init__(self, camera_func, width, height):
self.camera_func = camera_func
self.state = Rect(0, 0, width, height)
def apply(self, target):
return target.rect.move(self.state.topleft)
def update(self, target):
self.state = self.camera_func(self.state, target.rect)
def simple_camera(camera, target_rect):
l, t, _, _ = target_rect
_, _, w, h = camera
return Rect(-l+HALF_WIDTH, -t+HALF_HEIGHT, w, h)
def complex_camera(camera, target_rect):
l, t, _, _ = target_rect
_, _, w, h = camera
l, t, _, _ = -l+HALF_WIDTH, -t+HALF_HEIGHT, w, h
l = min(0, l) # stop scrolling at the left edge
l = max(-(camera.width-WIN_WIDTH), l) # stop scrolling at the right edge
t = max(-(camera.height-WIN_HEIGHT), t) # stop scrolling at the bottom
t = min(0, t) # stop scrolling at the top
return Rect(l, t, w, h)
class Entity(pygame.sprite.Sprite):
def __init__(self):
pygame.sprite.Sprite.__init__(self)
class Player(Entity):
def __init__(self, x, y):
Entity.__init__(self)
self.xvel = 0
self.yvel = 0
self.onGround = False
self.image = Surface((32,32))
self.image.fill(Color("#0000FF"))
self.image.convert()
self.rect = Rect(x, y, 32, 32)
def update(self, up, down, left, right, running, platforms):
if up:
# only jump if on the ground
if self.onGround: self.yvel -= 10
if down:
pass
if running:
self.xvel = 12
if left:
self.xvel = -8
if right:
self.xvel = 8
if not self.onGround:
# only accelerate with gravity if in the air
self.yvel += 0.3
# max falling speed
if self.yvel > 100: self.yvel = 100
if not(left or right):
self.xvel = 0
# increment in x direction
self.rect.left += self.xvel
# do x-axis collisions
self.collide(self.xvel, 0, platforms)
# increment in y direction
self.rect.top += self.yvel
# assuming we're in the air
self.onGround = False;
# do y-axis collisions
self.collide(0, self.yvel, platforms)
def collide(self, xvel, yvel, platforms):
for p in platforms:
if pygame.sprite.collide_rect(self, p):
if isinstance(p, ExitBlock):
pygame.event.post(pygame.event.Event(QUIT))
if xvel > 0:
self.rect.right = p.rect.left
if xvel < 0:
self.rect.left = p.rect.right
if yvel > 0:
self.rect.bottom = p.rect.top
self.onGround = True
self.yvel = 0
if yvel < 0:
self.rect.top = p.rect.bottom
class Tree(Entity):
def __init__(self, x, y):
Entity.__init__(self)
self.image = Surface((32, 32))
self.image.convert()
self.image.fill(Color("#DDDDDD"))
self.rect = Rect(x, y, 32, 32)
class Border(Entity):
def __init__(self, x, y):
Entity.__init__(self)
self.image = Surface((32, 32))
self.image.convert()
self.image.fill(Color("#DDDDDD"))
self.rect = Rect(x, y, 32, 32)
def update(self):
pass
if __name__ == "__Main__":
display.update()
Main ()
回溯（最后一次调用）：
文件“C:\Users\Owner\Desktop\Python\BlankTemplate.py”，第 256 行，在 main()
文件“C:\Users\Owner\Desktop\Python\BlankTemplate.py”中，第 141 行，在 main player.update(up, down, left, right, running, Borders)
文件“C:\Users\Owner\Desktop\Python\BlankTemplate.py”，第 211 行，在更新 self.collide(self .xvel, 0, 平台）
文件“C:\Users\Owner\Desktop\Python\BlankTemplate.py”，第 220 行，在边界中的 p 冲突中：NameError：未定义全局名称“边界”