Pygame 显示不会更新

Question

我正在用pygame制作游戏，但显示没有更新。我正在使用 update(( 函数，并使用 fill(( 清除循环开始时的屏幕。Pygame的加载速度也不是很快;一旦pygame应用程序显示在Mac上运行的应用程序中，我必须在pygame应用程序上点击"退出"才能显示屏幕。

"Module Imports"
import pygame as pg
import shelve
"Import Classes"
from Settings import Settings
from Settings import Screen
from Settings import Save
from Random import Random
from Input import Input
from Input import Button
# Init Classes
Settings = Settings()
Screen = Screen()
Random = Random()
Save = Save()
on = True
pg.init()
event_const = pg.event.wait()
save_file = shelve.open("/Volumes/HISTORYGAME/Game_Saves/Save_File")
clock = pg.time.Clock()
MainDisplay = pg.display.set_mode((Screen.width, Screen.height))
pg.display.set_caption(Settings.title)
pg.display.init()

class Mouse:
def __init__(self):
self.left = False
self.right = False

Mouse = Mouse()

def begin_game():
players = []
num_players = input("How Many Players (enter int): ")
save_file["num_players_var"] = num_players
for pl in range(num_players):
players.append(raw_input("Enter Player Name: "))
save_file["players_var"] = players
print(players)

def intro():
intro = True
for event in pg.event.get():
if event.get == pg.QUIT:
intro = False
on = False
if event.get == pg.event.KEYDOWN:
pass

# begin_game()
test_button = Button(0, 0, 200, 200, "Enter Text Here", MainDisplay)
buttons = []
buttons.append(test_button)
loops = 0
test_x = 10
test_y = 10
while on:
MainDisplay.fill((0, 0, 0))
for event in pg.event.get():
if event.type == pg.QUIT:
On = False
pg.quit()
exit()
if event.type == pg.KEYDOWN:
if event.key == pg.K_ESCAPE:
On = False
pg.quit()
exit()
if event.key == pg.K_RIGHT:
test_x += 10
print("right")
if event.type == pg.MOUSEBUTTONDOWN:
if event.button == 1:
Mouse.left = True
else:
Mouse.left = False
if event.type == pg.MOUSEBUTTONUP:
if event.button == 1:
Mouse.left = False
for button in buttons:
button.draw(pg.mouse.get_pos(), event_const)
if button.clicked is True:
print("True n" * 100)
pg.draw.line(MainDisplay, (255, 0, 0), (100, 100), (600, 600))
pg.draw.rect(MainDisplay, (255, 0, 0), (test_x, test_y, 20, 20))
pg.display.flip()
pg.display.update()
clock.tick(Settings.FPS)
loops += 1
print(str(loops))

Answer 1

我怀疑等待事件或用input()读取stdin会导致锁定问题。但是在呈现的代码中，对此的调用被注释掉了。 不可能真正知道。

这个版本的代码，带有重新创建的Button类，工作正常，但显然它没有任何引用的类。

"Module Imports"
import pygame 
#import shelve
"Import Classes"
#from Settings import Settings
#from Settings import Screen
#from Settings import Save
#from Random import Random
#from Input import Input
#from Input import Button
# Init Classes
#Settings = Settings()
#Screen = Screen()
#Random = Random()
#Save = Save()
WINDOW_WIDTH  = 600
WINDOW_HEIGHT = 600
class Mouse:
def __init__(self):
self.left = False
self.right = False
class Button:
def __init__( self, x, y, width, height, label, window ):
self.rect    = pygame.Rect( x, y, width, height )
self.clicked = False
self.window  = window
self.font    = pygame.font.Font( None, 20 )
self.label   = self.font.render( label, True, ( 255, 255, 255 ) ) # large white text
def draw( self, mouse_pos ):
if ( self.rect.collidepoint( mouse_pos ) ):
colour = ( 0, 200, 0 )  # green if mouse over
else:
colour = (0, 0, 200)    # blue otherwise
pygame.draw.rect( self.window, colour, self.rect, 0 )  # filled rectangle
# centred text
label_rect = self.label.get_rect()
x_offset = ( self.rect.width  - label_rect.width ) // 2
y_offset = ( self.rect.height - label_rect.height ) // 2
self.window.blit( self.label, ( x_offset, y_offset ) )
def checkClick( self, mouse_pos ):
if ( self.rect.collidepoint( mouse_pos ) ):
self.clicked = True
else:
self.clicked = False

def begin_game():
players = [ "Mork", "Mindy", "E.T." ]   # test data
#players = []
#num_players = input("How Many Players (enter int): ")
#save_file["num_players_var"] = num_players
#for pl in range(num_players):
#    players.append(raw_input("Enter Player Name: "))
#save_file["players_var"] = players
print(players)


# Initialisation
pygame.init()
pygame.font.init()
#event_const = pygame.event.wait()
#save_file = shelve.open("/Volumes/HISTORYGAME/Game_Saves/Save_File")
clock = pygame.time.Clock()
window = pygame.display.set_mode( ( WINDOW_WIDTH, WINDOW_HEIGHT ) )
pygame.display.set_caption( "Settings.title" )
pygame.display.init()

Mouse = Mouse()
begin_game()
test_button = Button(0, 0, 200, 200, "Enter Text Here", window)
buttons = []
buttons.append(test_button)
loops = 0
test_x = 10
test_y = 10
on = True
while on:
window.fill((0, 0, 0))
for event in pygame.event.get():
if event.type == pygame.QUIT:
on = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
on = False
elif event.key == pygame.K_RIGHT:
test_x += 10
print("right")
elif event.type == pygame.MOUSEBUTTONDOWN:
if event.button == 1:
Mouse.left = True
elif event.type == pygame.MOUSEBUTTONUP:
if event.button == 1:
Mouse.left = False
for button in buttons:
button.checkClick( event.pos )  # buttons actuate on mouse-up
for button in buttons:
button.draw( pygame.mouse.get_pos() ) #, event_const)
if button.clicked is True:
print("True n" * 5) # 100
pygame.draw.line(window, (255, 0, 0), (100, 100), (600, 600))
pygame.draw.rect(window, (255, 0, 0), (test_x, test_y, 20, 20))
pygame.display.flip()
#pygame.display.update()   # only need update() or flip()
clock.tick( 60 ) #Settings.FPS)
loops += 1
#print(str(loops))   # Too noisy
# exiting
pygame.quit()