為什么我的游戲的角色移動無法正常工作

Question

我的角色移動是錯誤的，我根本不知道為什么當我運行它時它向前移動並且像向后移動錯誤我改變了速度和幀率無濟於事並且害怕觸摸代碼因為我只是在背景時讓它工作可見

import pygame
import os

WIDTH, HEIGHT = 1920, 1080
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
pygame.display.set_caption("Gaem")
WHITE = (255, 255, 255)
FPS = 60
Vel = 5
CHARACTER = pygame.image.load('MAN.png')
def draw_window(CHARACTERM):
    WIN.fill((WHITE))
    WIN.blit(CHARACTER, (CHARACTERM.x, CHARACTERM.y))
    
    pygame.display.update()

def main():
    CHARACTERM = pygame.Rect(100, 300, 850, 450)

    clock = pygame.time.Clock()
    
    run = True
    while run:
        clock.tick(FPS)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False


##########CHARACTER MOVMENT####################
        draw_window(CHARACTERM)
        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_a]: #Left
            CHARACTERM.x -= Vel


        draw_window(CHARACTERM)
        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_d]: #Right
            CHARACTERM.x += Vel


        draw_window(CHARACTERM)
        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_w]: #Up
            CHARACTERM.y -= Vel


        draw_window(CHARACTERM)
        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_s]: #Down
            CHARACTERM.y += Vel

################################################
        draw_window(CHARACTERM)
    pygame.quit()

if __name__ == "__main__":
    main()

謝謝扎坦多1

Answer 1

一次調用pygame.key.get_pressed()和draw_window()就足夠了：

def main():
    CHARACTERM = pygame.Rect(100, 300, 850, 450)
    clock = pygame.time.Clock()
    
    run = True
    while run:
        clock.tick(FPS)
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                run = False
        keys_pressed = pygame.key.get_pressed()
        if keys_pressed[pygame.K_a]: #Left
            CHARACTERM.x -= Vel
        if keys_pressed[pygame.K_d]: #Right
            CHARACTERM.x += Vel
        if keys_pressed[pygame.K_w]: #Up
            CHARACTERM.y -= Vel
        if keys_pressed[pygame.K_s]: #Down
            CHARACTERM.y += Vel

        draw_window(CHARACTERM)
    pygame.quit()

如果多次調用draw_window() ， pygame.display.update()將在每一幀中執行多次。 在應用程序循環結束時更新顯示就足夠了。 多次調用pygame.display.update()或pygame.display.flip()會導致閃爍。