我正在制作一个Flappy Bird的克隆。
我对Pygame还是个新手。我看过一个关于json保存的教程(如您所见(。我试着让一切都正常工作，事实确实如此，但我很难弄清楚如何保存高分值。
显示的教程是在一个点击游戏上。我跟着做了，但点击游戏不同于在Flappy Bird克隆上保存高分并显示它。我试着按照教程中所说的显示保存的金额，但没有成功。
代码：
import pygame, sys, random
import json
def draw_floor():
screen.blit(floor_surface,(floor_x_pos,900))
screen.blit(floor_surface,(floor_x_pos + 576,900))
def create_pipe():
random_pipe_pos = random.choice(pipe_height)
bottom_pipe = pipe_surface.get_rect(midtop = (584,random_pipe_pos))
top_pipe = pipe_surface.get_rect(midbottom = (584,random_pipe_pos -300))
return bottom_pipe,top_pipe
def move_pipes(pipes):
for pipe in pipes:
pipe.centerx -= 5
visible_pipes = [pipe for pipe in pipes if pipe.right > -50]
return visible_pipes
def draw_pipes(pipes):
for pipe in pipes:
if pipe.bottom >= 1024:
screen.blit(pipe_surface,pipe)
else:
flip_pipe = pygame.transform.flip(pipe_surface,False,True)
screen.blit(flip_pipe,pipe)
def check_collision(pipes):
global can_score
for pipe in pipes:
if bird_rect.colliderect(pipe):
hit_sound.play()
can_score = True
return False
if bird_rect.top <= -100 or bird_rect.bottom >= 900:
can_score = True
hit_sound.play()
return False
return True
def rotate_bird(bird):
new_bird = pygame.transform.rotozoom(bird,-bird_movement * 3,1)
return new_bird
def bird_animation():
new_bird = bird_frames[bird_index]
new_bird_rect = new_bird.get_rect(center = (100,bird_rect.centery))
return new_bird,new_bird_rect
# Data
data = {
'highscore': 0
}
try:
with open('highscore.txt') as highscore_file:
data = json.load(highscore_file)
except:
print('No file')
def score_display(game_state):
if game_state == 'main_game':
score_surface = game_font.render(str(int(score)),True,(255,255,255))
score_rect = score_surface.get_rect(center = (288,100))
screen.blit(score_surface,score_rect)
if game_state == 'game_over':
score_surface = game_font.render(f'Score: {int(score)}',True,(255,255,255))
score_rect = score_surface.get_rect(center = (288,100))
screen.blit(score_surface,score_rect)
high_score_surface = game_font.render(f'High score: {int(high_score)}',True,(255,255,255))
high_score_rect = high_score_surface.get_rect(center = (288,850))
screen.blit(high_score_surface,high_score_rect)
def update_score(score,high_score):
if score > high_score:
high_score = score
return high_score
def pipe_score_check():
global score, can_score
if pipe_list:
for pipe in pipe_list:
if 95 < pipe.centerx < 105 and can_score:
score += 1
point_sound.play()
can_score = False
if pipe.centerx < 0:
can_score = True
# pygame.mixer.pre_init(frequency = 44100, size = 16, channels = 1, buffer = 512)
pygame.init()
screen = pygame.display.set_mode((576,1024))
clock = pygame.time.Clock()
game_font = pygame.font.Font('04B_19.ttf',40)
# Variables
gravity = 0.25
bird_movement = 0
game_active = True
score = 0
high_score = 0
can_score = True
# Loading images
bg_surface = pygame.image.load('assets/background-day.png').convert()
bg_surface = pygame.transform.scale2x(bg_surface)
floor_surface = pygame.image.load('assets/base.png').convert()
floor_surface = pygame.transform.scale2x(floor_surface)
floor_x_pos = 0
bird_downflap = pygame.transform.scale2x(pygame.image.load('assets/yellowbird-downflap.png').convert_alpha())
bird_midflap = pygame.transform.scale2x(pygame.image.load('assets/yellowbird-midflap.png').convert_alpha())
bird_upflap = pygame.transform.scale2x(pygame.image.load('assets/yellowbird-upflap.png').convert_alpha())
bird_frames = [bird_downflap,bird_midflap,bird_upflap]
bird_index = 0
bird_surface = bird_frames[bird_index]
bird_rect = bird_surface.get_rect(center = (100,512))
BIRDFLAP = pygame.USEREVENT + 1
pygame.time.set_timer(BIRDFLAP,200)
# bird_surface = pygame.image.load('assets/yellowbird-midflap.png').convert_alpha()
# bird_surface = pygame.transform.scale2x(bird_surface)
# bird_rect = bird_surface.get_rect(center = (100,512))
pipe_surface = pygame.image.load('assets/pipe-green.png').convert()
pipe_surface = pygame.transform.scale2x(pipe_surface)
pipe_list = []
SPAWNPIPE = pygame.USEREVENT
pygame.time.set_timer(SPAWNPIPE,1500)
pipe_height = [400,600,800]
game_over_surface = pygame.transform.scale2x(pygame.image.load('assets/message.png').convert_alpha())
game_over_rect = game_over_surface.get_rect(center = (288,512))
# Sounds
flap_sound = pygame.mixer.Sound('sound/sfx_wing.wav')
hit_sound = pygame.mixer.Sound('sound/sfx_hit.wav')
point_sound = pygame.mixer.Sound('sound/sfx_point.wav')
countdown_sound_score = 100
# Event loop
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
with open('highscore.txt','w') as highscore_file:
json.dump(data,highscore_file)
pygame.quit()
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE and game_active:
bird_movement = 0
bird_movement -= 12
flap_sound.play()
if event.key == pygame.K_SPACE and game_active == False:
game_active = True
pipe_list.clear()
bird_rect.center = (100,512)
bird_movement = 0
score = 0
if event.type == SPAWNPIPE:
pipe_list.extend(create_pipe())
if event.type == BIRDFLAP:
if bird_index < 2:
bird_index += 1
else:
bird_index = 0
bird_surface,bird_rect = bird_animation()
# Pasting background image
screen.blit(bg_surface,(0,0))
if game_active:
# Bird movement and pasting bird
bird_movement += gravity
rotated_bird = rotate_bird(bird_surface)
bird_rect.centery += bird_movement
screen.blit(rotated_bird,bird_rect)
game_active = check_collision(pipe_list)
# Pipes
pipe_list = move_pipes(pipe_list)
draw_pipes(pipe_list)
# Score
pipe_score_check()
score_display('main_game')
else:
screen.blit(game_over_surface,game_over_rect)
high_score = update_score(score,high_score)
score_display('game_over')
# Floor movement and pasting floor image
floor_x_pos -= 1
draw_floor()
if floor_x_pos <=-576:
floor_x_pos = 0
pygame.display.update()
clock.tick(120)
您必须使用字典中的数据初始化highscore变量：
data = { 'highscore': 0 }
try:
with open('highscore.txt') as highscore_file:
data = json.load(highscore_file)
except:
print('No file')
high_score = 0
high_score = data.get('highscore', 0)
在将字典写入JSON文件之前，您必须创建一个具有新高分的字典
if score > highscore:
with open('highscore.txt','w') as highscore_file:
data = { 'highscore': score }
json.dump(data, highscore_file)