我目前在pygame中遇到按钮问题。目前我正在测试自己的pygame，我正在尝试创建一个飞扬的鸟类游戏。我想要实现的是当我点击主菜单上的播放按钮时，它将改变按钮精灵并运行主游戏。
我已设法定义按钮功能，并在我点击时将其切换到主游戏。唯一的问题是它在点击时没有显示不同的精灵，我可以点击应用程序中的任何地方切换到主游戏而不必点击按钮。
非常感谢任何帮助。
先谢谢
import time
import random
import pygame
from pygame.locals import *
pygame.init()
#Predefined Colors
white = (255,255,255)
black = (0,0,0)
red = (200,0,0)
light_red = (255,0,0)
yellow = (200,200,0)
light_yellow = (255,255,0)
green = (34,177,76)
light_green = (0,255,0)
blue = (0,0,255)
light_blue = (0, 0, 200)
player_list = (
# Red Bird
('assets/sprites/redbird-upflap.png', 'assets/sprites/redbird-midflap.png',
'assets/sprites/redbird-downflap.png'),
# Blue Bird
('assets/sprites/bluebird-upflap.png', 'assets/sprites/bluebird-midflap.png',
'assets/sprites/bluebird-downflap.png'),
# Yellow Bird
('assets/sprites/yellowbird-upflap.png', 'assets/sprites/yellowbird-midflap.png',
'assets/sprites/yellowbird-downflap.png')
)
background_list = (
('assets/sprites/background-day.png', 'assets/sprites/background-night.png')
)
pipe_list = (
('assets/sprites/pipe-green.png', 'assets/sprites/pipe-red.png')
)
FPS = 30
images, sounds = {}, {}
def main():
global base_x, base_y, clock, gameDisplay, display_height, display_width
display_width = 288
display_height = 512
base_x = 0
base_y = display_height * 0.79
clock = pygame.time.Clock()
gameDisplay = pygame.display.set_mode((display_width, display_height))
pygame.display.set_caption("Flappy Bird")
#Loading icon sprite
images['Icon'] = pygame.image.load('assets/sprites/yellowbird-midflap.png')
pygame.display.set_icon(images['Icon'])
#Loading all the Numbers sprites
images['Numbers'] = (
pygame.image.load('assets/sprites/0.png').convert_alpha(),
pygame.image.load('assets/sprites/1.png').convert_alpha(),
pygame.image.load('assets/sprites/2.png').convert_alpha(),
pygame.image.load('assets/sprites/3.png').convert_alpha(),
pygame.image.load('assets/sprites/4.png').convert_alpha(),
pygame.image.load('assets/sprites/5.png').convert_alpha(),
pygame.image.load('assets/sprites/6.png').convert_alpha(),
pygame.image.load('assets/sprites/7.png').convert_alpha(),
pygame.image.load('assets/sprites/8.png').convert_alpha(),
pygame.image.load('assets/sprites/9.png').convert_alpha()
)
#Game Over Sprite
images['Game Over'] = pygame.image.load('assets/sprites/gameover.png').convert_alpha()
#Starting Game sprite
images['Starting Game'] = pygame.image.load('assets/sprites/startgame-screen.png').convert_alpha()
#Flappy Bird Logo sprite
images['Flappy Bird Logo'] = pygame.image.load('assets/sprites/flappybird-logo.png').convert_alpha()
#Base Ground sprite
images['Base Ground'] = pygame.image.load('assets/sprites/base.png').convert_alpha()
#Play Button Up sprite
images['Play Button Up'] = pygame.image.load('assets/sprites/playbutton-up.png').convert_alpha()
#Play Button Down sprite
images['Play Button Down'] = pygame.image.load('assets/sprites/playbutton-down.png').convert_alpha()
#Quit Button Up sprite
#images['Quit Button Up'] = pygame.image.load('assets/sprites/quitbutton-up.png').convert_alpha()
#Quit Button Down sprite
#images['Quit Button Down'] = pygame.image.load('assets/sprites/quitbutton-down.png').convert_alpha()
#Sounds
# sounds['Die'] = pygame.mixer.Sound('assets/audio/die.wav')
# sounds['Hit'] = pygame.mixer.Sound('assets/audio/hit.wav')
# sounds['Point'] = pygame.mixer.Sound('assets/audio/point.wav')
# sounds['swoosh'] = pygame.mixer.Sound('assets/audio/swoosh.wav')
# sounds['wing'] = pygame.mixer.Sound('assets/audio/wing.wav')
while True:
#Select random Background sprites
random_background = random.randint(0, len(background_list) - 1)
images['Background'] = pygame.image.load(background_list[random_background]).convert()
#Select random Player sprites
random_player = random.randint(0, len(player_list) - 1)
images['Player'] = (
pygame.image.load(player_list[random_player][0]).convert_alpha(),
pygame.image.load(player_list[random_player][1]).convert_alpha(),
pygame.image.load(player_list[random_player][2]).convert_alpha()
)
#Select random Pipe sprite
random_pipe = random.randint(0, len(pipe_list) - 1)
images['Pipe'] = pygame.image.load(pipe_list[random_pipe])
main_menu()
pygame.display.update()
clock.tick(FPS)
def button(action = None):
cur = pygame.mouse.get_pos()
click = pygame.mouse.get_pressed()
if action == 'Play':
button = images['Play Button Up'].get_rect()
for event in pygame.event.get():
if click[0] == 1:
if button.collidepoint(cur):
print ('Mouse Over')
images['Play Button Down']
main_game()
else:
gameDisplay.blit(images['Play Button Up'], (0, -10))
def main_menu():
global player_index, player_x, player_y
player_index = 0
player_x = int(display_width * 0.2)
player_y = int((display_height - images['Player'] [0].get_height()) / 2)
menu = True
while menu:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
gameDisplay.blit(images['Background'], (0, 0))
gameDisplay.blit(images['Base Ground'], (base_x, base_y))
gameDisplay.blit(images['Flappy Bird Logo'], (50, -30))
gameDisplay.blit(images['Player'][player_index], (125, 140))
gameDisplay.blit(images['Play Button Up'], (10, 10))
button(action = 'Play')
pygame.display.update()
clock.tick(FPS)
def main_game():
gameExit = False
gameOver = False
player_x = 0
player_y = 0
while not gameExit:
if gameOver == True:
gameDisplay.blit(images['Game Over'], 50, 50)
pygame.display.update()
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
gameDisplay.blit(images['Background'], (0, 0))
gameDisplay.blit(images['Starting Game'], (0, 0))
gameDisplay.blit(images['Base Ground'], (base_x, base_y))
gameDisplay.blit(images['Player'][player_index], (player_x, player_y))
pygame.display.update()
clock.tick(FPS)
main()
答案 0 :(得分：0)
以下是演示如何在不同按钮图像之间切换的最小示例。
当用户按下鼠标按钮（pygame.MOUSEBUTTONDOWN事件被添加到队列中）时，检查event.pos是否与按钮rect发生碰撞，如果碰撞，请将图像设置为“向下” “版本。
当用户释放按钮（pygame.MOUSEBUTTONUP事件）时，只需将图像设置回原始版本。
import pygame as pg
pg.init()
screen = pg.display.set_mode((640, 480))
GRAY = pg.Color('gray15')
BLUE = pg.Color('dodgerblue1')
LIGHTBLUE = pg.Color('lightskyblue1')
BUTTON_UP_IMG = pg.Surface((50, 30))
BUTTON_UP_IMG.fill(BLUE)
BUTTON_DOWN_IMG = pg.Surface((50, 30))
BUTTON_DOWN_IMG.fill(LIGHTBLUE)
def main():
clock = pg.time.Clock()
font = pg.font.Font(None, 30)
# Currently selected button image.
button_image = BUTTON_UP_IMG
button_rect = button_image.get_rect(topleft=(200, 200))
x = 0
done = False
while not done:
for event in pg.event.get():
if event.type == pg.QUIT:
done = True
if event.type == pg.MOUSEBUTTONDOWN:
if event.button == 1:
if button_rect.collidepoint(event.pos):
button_image = BUTTON_DOWN_IMG
elif event.type == pg.MOUSEBUTTONUP:
if event.button == 1:
button_image = BUTTON_UP_IMG
if button_rect.collidepoint(event.pos):
print('Button pressed.')
x += 1
screen.fill(GRAY)
screen.blit(button_image, button_rect)
txt = font.render(str(x), True, BLUE)
screen.blit(txt, (260, 206))
pg.display.flip()
clock.tick(30)
if __name__ == '__main__':
main()
pg.quit()
我实际上建议使用类，pygame sprites和sprite组，而不仅仅是rects和images。然后，您可以根据需要轻松创建任意数量的按钮类实例。
import pygame as pg
pg.init()
GRAY= pg.Color('gray12')
BLUE = pg.Color('dodgerblue1')
FONT = pg.font.Font(None, 30)
BUTTON_UP_IMG = pg.Surface((50, 30))
BUTTON_UP_IMG.fill(BLUE)
BUTTON_DOWN_IMG = pg.Surface((50, 30))
BUTTON_DOWN_IMG.fill(pg.Color('lightskyblue1'))
# The Button is a pygame sprite, that means we can add the
# instances to a sprite group and then update and render them
# by calling `sprite_group.update()` and `sprite_group.draw(screen)`.
class Button(pg.sprite.Sprite):
def __init__(self, pos, callback):
pg.sprite.Sprite.__init__(self)
self.image = BUTTON_UP_IMG
self.rect = self.image.get_rect(topleft=pos)
self.callback = callback
def handle_event(self, event):
"""Handle events that get passed from the event loop."""
if event.type == pg.MOUSEBUTTONDOWN:
if event.button == 1:
if self.rect.collidepoint(event.pos):
self.image = BUTTON_DOWN_IMG
elif event.type == pg.MOUSEBUTTONUP:
if event.button == 1:
self.image = BUTTON_UP_IMG
if self.rect.collidepoint(event.pos):
print('Button pressed.')
# Call the function that we passed during the
# instantiation. (In this case just `increase_x`.)
self.callback()
class Game:
def __init__(self):
self.screen = pg.display.set_mode((800, 600))
self.clock = pg.time.Clock()
self.x = 0
self.buttons = pg.sprite.Group(
Button((200, 200), callback=self.increase_x),
Button((500, 200), callback=self.decrease_x))
self.done = False
# A callback function that we pass to the button instance.
# It gets called if a collision in the handle_event method
# is detected.
def increase_x(self):
"""Increase self.x if button is pressed."""
self.x += 1
def decrease_x(self):
"""Decrease self.x if button is pressed."""
self.x -= 1
def run(self):
while not self.done:
self.handle_events()
self.run_logic()
self.draw()
self.clock.tick(30)
def handle_events(self):
for event in pg.event.get():
if event.type == pg.QUIT:
self.done = True
for button in self.buttons:
button.handle_event(event)
def run_logic(self):
self.buttons.update()
def draw(self):
self.screen.fill(GRAY)
self.buttons.draw(self.screen)
txt = FONT.render(str(self.x), True, BLUE)
self.screen.blit(txt, (360, 206))
pg.display.flip()
if __name__ == "__main__":
Game().run()
pg.quit()
答案 1 :(得分：0)
感谢你回答我之前的问题，你的答案解决了我之前的问题，但现在我遇到了另一个问题。
当我按下主菜单上的按钮时，它会正确更改精灵并正确加载主游戏，但只要我移动鼠标，它就会切换回主菜单。我最好的猜测是因为它循环整个按钮序列，但我不完全确定。
import pygame
pygame.init()
display_width = 288
display_height = 512
def main_menu():
done = False
play_button_image = images['Play Button Up']
play_button_rect = play_button_image.get_rect(topleft=(30,15))
while not done:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
pygame.quit()
quit()
if event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 1:
if play_button_rect.collidepoint(event.pos):
play_button_image = images['Play Button Down']
elif event.type == MOUSEBUTTONUP:
if event.button == 1:
play_button_image = images['Play Button Up']
if play_button_rect.collidepoint(event.pos):
main_game()
gameDisplay.blit(play_button_image, play_button_rect)
pygame.display.update()
clock.tick(FPS)
def main_game():
gameExit = False
gameOver = False
player_index = 0
player_x = int(display_width * 0.2)
player_y = int((display_height - images['Player'][0].get_height()) / 2)
player_index_gen = cycle([0, 1, 2, 1])
loop_iter = 0
starting_game_x = int((display_width - images['Starting Game'].get_width()) / 2)
starting_game_y = int(display_height * 0.12)
base_x = 0
base_shift = images['Base Ground'].get_width() - images['Background'].get_width()
player_move_vals = {'val': 0, 'dir': 1}
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
quit()
if event.type == pygame.MOUSEBUTTONDOWN or pygame.K_SPACE or pygame.K_UP:
sounds['Wing']
return {
'player_y': player_y + player_move_vals['val'],
'base_x': base_x,
'player_index_gen': player_index_gen
}
if (loop_iter + 1) % 5 == 0:
player_index = next(player_index_gen)
loop_iter = (loop_iter + 1) % 30
base_x = -((-base_x + 4) % base_shift)
player_move(player_move_vals)
# draw sprites
gameDisplay.blit(images['Background'], (0, 0))
gameDisplay.blit(images['Player'][player_index],
(player_x, player_y + player_move_vals['val']))
gameDisplay.blit(images['Starting Game'], (starting_game_x, starting_game_y))
gameDisplay.blit(images['Base Ground'], (base_x, base_y))
pygame.display.update()
clock.tick(FPS)
if __name__ == '__main__':
main()