Python 如何将文本添加到 pygame 矩形中
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How to add text into a pygame rectangle
提问by PythonNovice
I have come as far as drawing a rectangle in pygame however I need to be able to get text like "Hello" into that rectangle. How can I do this? (If you can explain it as well that would be much appreciated. Thank-you)
我已经在 pygame 中绘制了一个矩形，但是我需要能够将“Hello”之类的文本放入该矩形中。我怎样才能做到这一点？（如果你也能解释一下，那将不胜感激。谢谢）
Here is my code:
这是我的代码：
import pygame
import sys
from pygame.locals import *
white = (255,255,255)
black = (0,0,0)
class Pane(object):
def __init__(self):
pygame.init()
pygame.display.set_caption('Box Test')
self.screen = pygame.display.set_mode((600,400), 0, 32)
self.screen.fill((white))
pygame.display.update()
def addRect(self):
self.rect = pygame.draw.rect(self.screen, (black), (175, 75, 200, 100), 2)
pygame.display.update()
def addText(self):
#This is where I want to get the text from
if __name__ == '__main__':
Pan3 = Pane()
Pan3.addRect()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit(); sys.exit();
Thank you for your time.
感谢您的时间。
采纳答案by sloth
You first have to create a Font(or SysFont) object. Calling the rendermethod on this object will return a Surfacewith the given text, which you can blit on the screen or any other Surface.
您首先必须创建一个Font（或SysFont）对象。调用render此对象上的方法将返回Surface带有给定文本的 a，您可以在屏幕上或任何其他Surface.
import pygame
import sys
from pygame.locals import *
white = (255,255,255)
black = (0,0,0)
class Pane(object):
def __init__(self):
pygame.init()
self.font = pygame.font.SysFont('Arial', 25)
pygame.display.set_caption('Box Test')
self.screen = pygame.display.set_mode((600,400), 0, 32)
self.screen.fill((white))
pygame.display.update()
def addRect(self):
self.rect = pygame.draw.rect(self.screen, (black), (175, 75, 200, 100), 2)
pygame.display.update()
def addText(self):
self.screen.blit(self.font.render('Hello!', True, (255,0,0)), (200, 100))
pygame.display.update()
if __name__ == '__main__':
Pan3 = Pane()
Pan3.addRect()
Pan3.addText()
while True:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit(); sys.exit();
Note that your code seems a little bit strange, since usually you do all the drawing in the main loop, not beforehand. Also, when you make heavy use of text in your program, consider caching the result of Font.render, since it is a very slow operation.
请注意，您的代码看起来有点奇怪，因为通常您在主循环中而不是事先进行所有绘图。此外，当您在程序中大量使用文本时，请考虑缓存 的结果Font.render，因为这是一个非常慢的操作。
