我正在写一个小躲避游戏，我的想法是创造一种加电，将对象（在这种情况下是Spikeball）重置为起点并使它们两倍大。当玩家击中块时它打印出'hit'，但不知何故值不会改变！我使用的是python 2.7。
这是我的代码：
import pygame
import os
import shutil
import time
from PIL import Image,ImageDraw
import random
pygame.init()
display_hight = 1100
display_width = 1100
h=0
g=0
r=0
t=0
j=0
k=0
m=0
l=0
q=0
w=0
f=0
s=0
black = (0,0,0)
white = (255,255,255)
red = (255,0,0)
gameDisplay = pygame.display.set_mode((display_width,display_hight))
pygame.display.set_caption("ZOMPS")
clock = pygame.time.Clock()
mydir = os.path.dirname('/home/arne/Desktop/Python-project/Game/Demonsave.png')
playerImg = pygame.image.load(os.path.join(mydir,'Demonsave.png'))
playerImg = pygame.transform.scale(playerImg,(180,200))
mydir1 = os.path.dirname('/home/arne/Desktop/Python-project/Block.png')
blockImg = pygame.image.load(os.path.join(mydir1,'Block.png'))
def spikeball(m,l,spike_width,spike_hight,color):
pygame.draw.ellipse(gameDisplay,color,[m,l,spike_width,spike_hight])
def spikeball2(j,k,spike_width,spike_hight,color):
pygame.draw.ellipse(gameDisplay,color,[j,k,spike_width,spike_hight])
def spikeball3(q,w,spike_width,spike_hight,color):
pygame.draw.ellipse(gameDisplay,color,[q,w,spike_width,spike_hight])
def spikeball1(f,s,spike_width,spike_hight,color):
pygame.draw.ellipse(gameDisplay,color,[f,s,spike_width,spike_hight])
def spikeball4(r,t,spike_width,spike_hight,color):
pygame.draw.ellipse(gameDisplay,color,[r,t,spike_width,spike_hight])
def power():
p=1
if p == 1:
spike_width=160
spike_hight=160
q=-100
w=random.randrange(90,display_width-90)
r=random.randrange(90,display_width-90)
t=-200
f=random.randrange(90,display_width-90)
s=-400
start_m=random.randrange(90,display_width-90)
start_l =-800
else:
print('fail')
def lost():
message_display('You lost!')
def text_objects(text,font):
textSurface = font.render(text,True,black)
return textSurface,textSurface.get_rect()
def message_display(text):
largeText = pygame.font.Font('freesansbold.ttf',50)
TextSurf,TextRect =text_objects(text,largeText)
TextRect.center = (display_width/2,display_hight/2)
gameDisplay.blit(TextSurf,TextRect)
pygame.display.update()
time.sleep(2)
game_loop()
def player(x,y):
gameDisplay.blit(playerImg,(x,y))
def block(g,h):
gameDisplay.blit(blockImg,(g,h))
def game_loop():
j=random.randrange(0,display_width)
k=-300
x = display_width*0.4
y = display_hight*0.75
x_change=0
f=random.randrange(90,display_width-90)
s=-400
start_m=random.randrange(90,display_width-90)
start_l =-800
spike_speed=random.randrange(5,10)
spike_speed3=random.randrange(5,10)
spike_speed2=random.randrange(5,10)
spike_speed1=random.randrange(5,10)
spike_speed4=random.randrange(5,10)
spike_width=80
spike_hight=80
w=-100
q=random.randrange(0,display_width)
r=random.randrange(90,display_width-90)
t=-200
g=random.randrange(90,display_width-90)
h=-1300
block_speed=random.randrange(3,5)
GameExit = False
while not GameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
GameExit =True
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_d:
x_change+=4
elif event.key == pygame.K_a:
x_change-=4
elif event.key == pygame.K_ESCAPE:
quit()
elif event.type == pygame.KEYUP:
if event.key== pygame.K_a or pygame.K_d:
x_change=0
if y+50 < h+40 and y+160 >h:
if x+60 >g and x+60 < g+40 or x+101 > g and x + 101 < g+40:
power()
print('hit')
x+=x_change
k+=spike_speed2
s+=spike_speed3
q+=spike_speed1
t+=spike_speed4
gameDisplay.fill(red)
player(x,y)
block(g,h)
spikeball(start_m,start_l,spike_width,spike_hight,black)
spikeball1(w,q,spike_width,spike_hight,black)
spikeball2(j,k,spike_width,spike_hight,black)
spikeball3(f,s,spike_width,spike_hight,black)
spikeball3(r,t,spike_width,spike_hight,black)
start_l+=spike_speed
h+=block_speed
if x > display_width or x < 0:
x = display_width*0.4
y = display_hight*0.75
elif k > display_hight:
j=random.randrange(90,display_width-90)
k=-100
spike_speed2=random.randrange(6,12)
elif h > display_hight:
g=random.randrange(90,display_width-90)
h=-900
block_speed=random.randrange(1,6)
elif t > display_hight:
r=random.randrange(90,display_width-90)
t=-100
spike_speed4=random.randrange(6,12)
elif start_l > display_hight:
start_l =-100
start_m=random.randrange(90,display_width-90)
spike_speed=random.randrange(5,10)
elif s > display_hight:
s=-100
f=random.randrange(90,display_width-90)
spike_speed3=random.randrange(6,12)
elif q > display_hight:
q=-100
w=random.randrange(90,display_width-90)
spike_speed1=random.randrange(6,12)
elif y+50 < start_l+spike_hight and y+160 >start_l:
if x+60 >start_m and x+60 < start_m+spike_width or x+101 > start_m and x + 101 < start_m+spike_width:
lost()
elif y+50 < k+spike_hight and y+160 >k:
if x+60 >j and x+60 < j+spike_width or x+101 > j and x + 101 <j+spike_width:
lost()
elif y+50 < s+spike_hight and y+160 >s:
if x+60 >f and x+60 < f+spike_width or x+101 > f and x + 101 < f+spike_width:
lost()
elif y+50 < q+spike_hight and y+160 >q:
if x+60 >w and x+60 < w+spike_width or x+101 > w and x + 101 < w+spike_width:
lost()
elif y+50 < t+spike_hight and y+160 >t:
if x+60 >r and x+60 < r+spike_width or x+101 > r and x + 101 < r+spike_width:
lost()
pygame.display.update()
clock.tick(60)
game_loop()
pygame.quit()
quit()
感谢您的帮助！
答案 0 :(得分：1)
您的缩进看起来不正确，但看起来您正试图在函数内设置全局变量。
如here所示，你可以使用它：
globvar = 0
def set_globvar_to_one():
global globvar # Needed to modify global copy of globvar
globvar = 1
def print_globvar():
print(globvar) # No need for global declaration to read value of globvar
set_globvar_to_one()
print_globvar() # Prints 1
但是使用全局变量是一种不好的做法，你可能更善于使用类。 Python是一种面向对象的语言，它非常易于使用。您可以找到文档here。