如何在 pygame 中使用键盘输入？

Question

所以我正在制作一个游戏，其中这个角色（一个圆圈）必须戳破从天而降的气球才能获得分数。但是我一开始就无法让我的角色移动。

代码：

import pygame
from pygame.locals import *
pygame.init()

#Variables
white = (255, 255, 255)
blue = (70,130,180)
black = (0,0,0)
x = 400
y = 450
#screen stuff
screenwidth = 800
screenheight = 600

screen = pygame.display.set_mode((screenwidth, screenheight))
pygame.display.set_caption("Balloon Game!")
#end of screen stuff

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            exit()
    # Draw Character
    character = pygame.draw.circle(screen, (blue), (x, y), 50, 50)
    #End of Drawing Character

    # Making Arrow Keys
    keyPressed = pygame.key.get_pressed()
    if keyPressed[pygame.K_LEFT]:
        character.x -= 1
    if keyPressed[pygame.K_RIGHT]:
        character.x += 1

    pygame.display.update()

如果有人能告诉我为什么不是，我将不胜感激使用固定代码。谢谢！

Answer 1

pygame.draw.circle returns 圆的边界矩形（pygame.Rect 对象）。然而，圆心总是 (x, y)。因此，您需要更改 x 而不是 character.x:

while True:
    # [...]

    pygame.draw.circle(screen, (blue), (x, y), 50, 50)

    keyPressed = pygame.key.get_pressed()
    if keyPressed[pygame.K_LEFT]:
        x -= 1
    if keyPressed[pygame.K_RIGHT]:
        x += 1

这段代码甚至可以简化：

while True:
    # [...]

    pygame.draw.circle(screen, (blue), (x, y), 50, 50)

    keyPressed = pygame.key.get_pressed()
    x += (keyPressed[pygame.K_RIGHT] - keyPressed[pygame.K_LEFT])

如何在 pygame 中使用键盘输入？

How do I use keyboard inputs in pygame?

keyboard

pygame