Pygame 显示不更新

Question

我正在 pygame 中制作游戏，但显示没有更新。我正在使用 update() 函数，并在循环开始时使用 fill() 清除屏幕。 Pygame 的加载速度也不是很快；一旦 pygame 应用程序显示在我的 Mac 上正在运行的应用程序中，我必须点击“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

我怀疑等待事件或使用input() 读取stdin 会导致锁定问题。但是在给出的代码中，对此的调用被注释掉了。不可能真的知道。

这个版本的代码，带有重新创建的Button 类可以正常工作，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()