在 pygame 中增加点击次数

Question

我正在尝试创建一个评分系统。因此，如果用户点击数字，则玩家 1 获得 1 分，如果他们点击字母，玩家 2 获得 1 分

import pygame
import pygame.freetype
import random

pygame.init()
pygame.font.init()

screen = pygame.display.set_mode((0, 0), pygame.FULLSCREEN)  # Fullscreen

在这里我创建了一个变量来存储数字并将其更改为在屏幕上显示。

number = 0
str_number = str(number)

def text():
game_font = pygame.freetype.SysFont("monospace", 45)
text_surface, rect = game_font.render(str_number, (0, 0, 0))
screen.blit(text_surface, (250, 700))

game_font = pygame.freetype.SysFont("monospace", 45)
text_surface, rect = game_font.render(str_number, (0, 0, 0))
screen.blit(text_surface, (1300, 700))

在我的主循环中，每当用户按下该键时，我都会尝试将数字加一。但它不起作用。

running = True
while running:
screen.fill((255, 194, 102))  # RGB

    for event in pygame.event.get():  # Event handler
    ...

      if event.type == pygame.KEYDOWN:
        if event.key == pygame.K_1 or event.key == pygame.K_b and len(cards) > 0:
            cards.pop(0)
            number += 1
        if event.key == pygame.K_2 or event.key == pygame.K_n and len(cards) > 1:
            cards.pop(1)
            number += 1
        if event.key == pygame.K_3 or event.key == pygame.K_m and len(cards) > 2:
            cards.pop(2)
            number += 1

text()
pygame.display.update()

Answer 1

当您更改数字时，呈现的文本不会神奇地改变。增加数字后必须重新渲染文本。

不要在每一帧中创建 pygame.font.Font 对象，也不要在每一帧中渲染文本。在程序开头创建文本 Surface 一次。每帧 blit 文本 Surface:

用函数简化代码。例如：

game_font = pygame.freetype.SysFont("monospace", 45)
text_surface, rect = game_font.render(str(number), (0, 0, 0))

def text():
    screen.blit(text_surface, (250, 700))

def increment_score():
    global number
    number += 1
    return game_font.render(str(number), (0, 0, 0))

while running:
    # [...]

    for event in pygame.event.get():
        # [...]

        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_1 or event.key == pygame.K_b and len(cards) > 0:
                cards.pop(0)
                text_surface, rect = increment_score()

            if event.key == pygame.K_2 or event.key == pygame.K_n and len(cards) > 1:
                cards.pop(1)
                text_surface, rect = increment_score()

            if event.key == pygame.K_3 or event.key == pygame.K_m and len(cards) > 2:
                cards.pop(2)
                text_surface, rect = increment_score()

在 pygame 中增加点击次数

Increse number on click in pygame

python

pygame