Question

我正在尝试在屏幕的左上角打分。我目前已经尝试了2个小时，但似乎没有任何反应。

font = pygame.font.SysFont("arial", 72)     
text = "Score:" + str(enemies_clicked)
label = font.render(text, 1, red)
screen.blit(label, (20, 10))

没有错误消息。我尝试了不同的字体，除了文本，其他所有内容似乎都可以正常工作。字体变量在pygame.init()和while循环之间声明。其他3行在while循环的深处是2个缩进。

完整代码：

import pygame
import sys
import time
from random import randint as random

pygame.init()

width = 600
height = 400

block_size = 40

enemy_size = block_size
enemy_pos = [int(random(1,14)*block_size), int(random(1,8)*block_size)]
enemies_clicked = 0

font = pygame.font.SysFont("comicsansms", 72)

black = (0,0,0)
white = (255,255,255)
red = (255,0,0)
blue = (0,0,255)
green = (0,255,0)

screen = pygame.display.set_mode((width, height))
pygame.display.set_caption("click game")

def clicked_on_enemy(enemy_pos, enemy_size, click_pos):

    e_x = enemy_pos[0]
    e_y = enemy_pos[1]
    c_e = click_pos[0]
    c_y = click_pos[1]

    x_col = False
    y_col = False

    for i in range(enemy_size):
        if e_x + i == c_e:
            x_col = True

    for i in range(enemy_size):
        if e_y + i == c_y:
            y_col = True

    if x_col and y_col:
        return True
    else:
        return False

#main loop#
while True:

    for event in pygame.event.get():

        if event.type == pygame.QUIT:
            sys.exit()

        if event.type == pygame.MOUSEBUTTONUP:
            click_pos = pygame.mouse.get_pos()

            if clicked_on_enemy(enemy_pos, enemy_size, click_pos):
                enemy_pos = [int(random(1,14) * block_size), int(random(1,8) * block_size)]
                enemies_clicked += 1

        text = "Score:" + str(enemies_clicked)  
        label = font.render(text, 1, red)
        screen.blit(label, (20, 10))

    screen.fill(black)
    pygame.draw.rect(screen, green, (enemy_pos[0],enemy_pos[1], enemy_size, enemy_size))
    pygame.display.update()

Answer 1

您将其涂抹在错误的位置-必须在screen.fill(black)之后清除缓冲区。在pygame.display.update()之前，它会在屏幕上发送缓冲区。

如果您在screen.fill(black)之前流血，那么fill()会将其删除，并且您将无法在屏幕上看到它。

text = "Score:" + str(enemies_clicked)  
label = font.render(text, 1, red)

screen.fill(black)

pygame.draw.rect(screen, green, (enemy_pos[0],enemy_pos[1], enemy_size, enemy_size))

screen.blit(label, (20, 10))

pygame.display.update()

文字不会在屏幕上变白

1 个答案: