所以我创造了我的第一个游戏，我想跟踪搁置的高分。我的逻辑是我有一个名为highscore的全局变量。在game_menu（）游戏开始时，它被赋予高分文件中的值。逻辑是，如果当前得分（躲闪）大于高分，那么高分数文件将被分配躲闪值，并显示在游戏菜单中。这在大多数情况下都有效，但即使躲闪变量小于高分，它仍然会被分配给文件。这就像游戏没有看到If语句。以下是游戏代码的重要部分。
d = shelve.open("highscore.txt")
highscore = d["highscore"]
d.close()
best_score(highscore)
上面，我们为全局变量分配了文件中的值，并通过best_score显示
if dodged > highscore:
d = shelve.open("highscore.txt")
d["highscore"] = dodged
d.close
这是我认为问题所在。它清楚地表明如果躲闪更大，但即使它相等或更小，文件也会被躲闪变量替换。我甚至尝试过插入ifesle，但没有任何作用。
以下是所要求的完整游戏代码
import pygame
import time
import random
import shelve
pygame.init()
display_width = 800
display_height = 600
black = (0,0,0)
red = (255,0,0)
dark_red = (200,0,0)
green = (0,255,0)
dark_green = (0,200,0)
awing_width = 95
gameDisplay = pygame.display.set_mode((display_width, display_height))
pygame.display.set_caption("Lonely ship")
clock = pygame.time.Clock()
background = pygame.image.load("space.jpg")
awingImg = pygame.image.load("A-wing.png")
awingImg = pygame.transform.scale(awingImg, (95,119))
asteroidImg = pygame.image.load("AsteroidPNG.png")
asteroidImg = pygame.transform.scale(asteroidImg, (100,100))
def score(score):
scoreFont = pygame.font.Font("freesansbold.ttf", 30)
text = scoreFont.render("Dodged: "+str(score), True, red)
gameDisplay.blit(text, (10,10))
def best_score(best_score):
scoreFont = pygame.font.Font("freesansbold.ttf", 30)
text = scoreFont.render("Highscore: "+str(best_score), True, red)
gameDisplay.blit(text, (10,10))
def asteroid(asteroidx, asteroidy, asteroidw, asteroidh):
gameDisplay.blit(asteroidImg, (asteroidx, asteroidy, asteroidw, asteroidh))
def awing(x,y):
gameDisplay.blit(awingImg, (x,y))
def text_objects(text, font):
textSurface = font.render(text, True, red)
return textSurface, textSurface.get_rect()
def button_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_height/2))
gameDisplay.blit(TextSurf, TextRect)
pygame.display.update()
time.sleep(2)
pygame.event.clear()
game_menu()
def outOfBounds():
message_display("You flew out of bounds!")
def crash():
message_display("You crashed!")
def win():
message_display("YOU WIN!!!")
def button(message,x,y,w,h,dc,bc,action=None):
mouse = pygame.mouse.get_pos()
click = pygame.mouse.get_pressed()
if x+w > mouse[0] > x and y+h > mouse [1] > y:
pygame.draw.rect(gameDisplay, bc, (x,y,w,h))
if click[0] == 1 and action != None:
if action == "play":
game_loop()
elif action == "quit":
pygame.quit()
quit()
else:
pygame.draw.rect(gameDisplay, dc, (x,y,w,h))
smallText = pygame.font.Font("freesansbold.ttf", 20)
textSurf, textRect = button_text_objects(message, smallText)
textRect.center = ( (x+(w/2)), (y+(h/2)) )
gameDisplay.blit(textSurf, textRect)
global highscore
def game_menu():
intro = True
while intro:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
gameDisplay.blit(background, (0,0))
d = shelve.open("highscore.txt")
highscore = d["highscore"]
d.close()
best_score(highscore)
largeText = pygame.font.Font("freesansbold.ttf", 50)
TextSurf, TextRect = text_objects("Lonely Ship", largeText)
TextRect.center = ((display_width/2), (display_height/2))
gameDisplay.blit(TextSurf, TextRect)
button("Play", 200, 400, 100, 50, dark_green,green, "play")
button("Quit", 500, 400, 100, 50, dark_red,red, "quit")
pygame.display.update()
clock.tick(15)
def game_loop():
x = (display_width * 0.425)
y = (display_height * 0.75)
x_change = 0
asteroid_startx = random.randrange(0, display_width)
asteroid_starty = -600
asteroid_speed = 5
asteroid_width = 100
asteroid_height = 100
dodged = 0
gameExit = False
while not gameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_change += -10
elif event.key == pygame.K_RIGHT:
x_change += 10
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
x_change += 10
elif event.key == pygame.K_RIGHT:
x_change += -10
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
game_menu()
x += x_change
gameDisplay.blit(background, (0,0))
asteroid(asteroid_startx, asteroid_starty, asteroid_width, asteroid_height)
asteroid_starty += asteroid_speed
awing(x,y)
score(dodged)
if x > display_width - awing_width or x < 0:
outOfBounds()
if asteroid_starty > display_height:
asteroid_starty = 0 - asteroid_height
asteroid_startx = random.randrange(0, display_width)
dodged += 1
asteroid_speed += 0.5
if dodged > highscore:
d = shelve.open("highscore.txt")
d["highscore"] = dodged
d.close
if y < asteroid_starty + asteroid_height:
print("y crossover")
if x > asteroid_startx and x < asteroid_startx + asteroid_width or x + awing_width > asteroid_startx and x + awing_width < asteroid_startx + asteroid_width:
print("x crossover")
crash()
if dodged >= 50:
d = shelve.open("highscore.txt")
d["highscore"] = 0
d.close
win()
pygame.display.update()
clock.tick(60)
game_menu()
game_loop()
pygame.quit()
quit()
答案 0 :(得分：1)
我认为发生的事情是你将数字与字符串进行比较。如果你正在使用python 2.x，那么数字总是比here所描述的要小。如果您使用的是3.x，则会产生错误。
0 > '0' // false
因此，您需要做的是将highscore转换为int：
highscore = int(d["highscore"])
或者，反之亦然 - dodged是一个字符串，因为在highscore是字符串的情况下，您永远不会进入if。