关键事件触发器和屏幕上的移动对象

Question

所以我正在用 python 中的 pygame 模块制作游戏。游戏是Breakout。游戏的机制之一是左右移动玩家。我是如何做到这一点的，当用户按下向左或向右箭头键时，玩家砖块会根据按下的键向左或向右移动，但要注意的是，如果玩家按住向左或向右按​​钮；玩家砖不会继续移动...我的问题是如何让玩家砖在按住键时继续移动而不是移动一次？！

这是我的代码

import pygame
pygame.init()
#colors
BLACK    = (   0,   0,   0)
WHITE    = ( 255, 255, 255)
GREEN    = (   0, 255,   0)
RED      = ( 255,   0,   0)

#the Brick
class goodbrick:
    def __init__ (self, color):
        self.color_scheme=color
        ##################X,  Y     L    F
        self.cordinates= [20, 450, 100, 0]

    def move (self, x):
            self.cordinates[0]+=x

    def draw (self):
        pygame.draw.rect(screen, self.color_scheme, self.cordinates, 0)


#class enemyBrick:
#the ball

#pygame stuff
size = (700, 500)
screen = pygame.display.set_mode(size)
pygame.display.set_caption("BREAKOUT")
done= False
clock = pygame.time.Clock()

#init stuff
player1= goodbrick(GREEN)
#main loop
while not done:
    for event in pygame.event.get(): # User did something
        if event.type == pygame.QUIT:
            done=True
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                player1.move(-1)
            if event.key == pygame.K_RIGHT:
                player1.move(1)
        elif event.type ==pygame.KEYUP:
            if event.key == pygame.K_LEFT:
                player1.move(-1)
                print("yup")
            if event.key == pygame.K_RIGHT:
                player1.move(1)
    #art
    screen.fill(BLACK)
    player1.draw()
    #screent
    pygame.display.flip()
    clock.tick(60)

pygame.quit()

Answer 1

import pygame
pygame.init()
#colors
BLACK    = (   0,   0,   0)
WHITE    = ( 255, 255, 255)
GREEN    = (   0, 255,   0)
RED      = ( 255,   0,   0)

#the Brick
class goodbrick:
    def __init__ (self, color):
        self.color_scheme=color
        ##################X,  Y     L    F
        self.cordinates= [20, 450, 100, 0]

    def move (self, x):
            self.cordinates[0]+=x

    def draw (self):
        pygame.draw.rect(screen, self.color_scheme, self.cordinates, 0)


#class enemyBrick:
#the ball

#pygame stuff
size = (700, 500)
screen = pygame.display.set_mode(size)
pygame.display.set_caption("BREAKOUT")
done= False
clock = pygame.time.Clock()

#init stuff
player1= goodbrick(GREEN)
#main loop
change = 0
while not done:        
    for event in pygame.event.get(): # User did something
        if event.type == pygame.QUIT:
            done=True
        elif event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                change = -1                
            if event.key == pygame.K_RIGHT:
                change = 1
        elif event.type ==pygame.KEYUP:
            if event.key == pygame.K_LEFT:
                change = 0
                print("yup")
            if event.key == pygame.K_RIGHT:
                change = 0
    player1.move(change)
    #art
    screen.fill(BLACK)
    player1.draw()
    #screent
    pygame.display.flip()
    clock.tick(60)

pygame.quit()