파이 게임 드로어 블 텍스트 클래스는 그려지지 않습니다.

Question

저는 스크린에 그려지는 약간의 텍스트를 나타내는 클래스를 가지고 있습니다. 이 클래스는 묘화 될 때 텍스트 요소의 draw() 함수에 제공된 표면의 서브 표면을 전달하는 Window 객체와 관련하여 사용하기위한 것입니다.

창이 그려지지만 텍스트는 그렇지 않습니다. 또한 TextElement의 draw() 함수를 직접 호출해도 그리지 않습니다. 디버거를 사용하여 코드를 검사 한 결과 blit이 제대로 수행되고 있습니다. 나 또한 "Arial" 대신에 파이 그램을 디폴트로 잡는 대신 폰트를 바꿔 보았습니다.

import pygame 

#Background and edge color of windows 
global bgcolor 
global bordercolor 
global txtcolor 
#Pygame font object that most text will be drawn in 
global mainfont 

#Defaults; code that imports us can change these. 
#Black background with white borders & text 
bgcolor=(0,0,0) 
txtcolor=(255,255,255) 
bordercolor=(255,255,255) 
#This will give us whatever font Pygame is set up to use as default 
if not __name__== "__main__": 
    #Font module needs to be initialized for this to work; it should be if we're imported, but won't if 
    #we're being executed directly. 
    mainfont=pygame.font.SysFont(None,12) 
else: 
    mainfont=None 


class Window: 
    """The base UI class. Is more-or-less a way to draw an empty square onto the screen. Other things are derived from this. 
    Also usable in its own right as a way to manage groups of more complex elements by defining them as children of 
    a basic window.""" 

    def __init__(self, rect): 

     self.rect=rect 

     #'children' of a window are drawn whenever it is drawn, unless their positions are outside the area of the window. 
     self.children=[] 

    def draw(self, surface): 
     "Draw this window to the given surface." 

     pygame.draw.rect(surface, bgcolor, self.rect) 
     #Draw non-filled rect with line width 4 as the border 
     pygame.draw.rect(surface, bordercolor, self.rect, 4) 

     self._draw_children(surface) 

    def _draw_children(self,surface): 
     "Call draw() on each of the children of this window. Intended to be called as part of an element's draw() function." 
     for thechild in self.children: 
      #We use a subsurface because we only want our child elements to be able to access the area inside this window. 
      thechild.draw(surface.subsurface(self.rect)) 

class TextElement(str): 
    """A bit of static text that can be drawn to the screen. Intended to be used inside a Window, but can be drawn 
    straight to a surface. Immutable; use DynamicTextElement for text that can change and move.""" 

    def __new__(cls,text,font,rect=pygame.Rect((0,0),(0,0))): 
     self=super().__new__(cls,text) 
     self.image=font.render(text,True,txtcolor) 
     self.rect=rect 
     return self 

    def __repr__(self): 
     return str.join("",("TextElement('",self,"')")) 

    def draw(self,surface): 
     self.image.blit(surface,self.rect.topleft) 

class DynamicTextElement(): 
    """A bit of text whose text can be changed and that can be moved. Slower than TextElement.""" 

    def __init__(self,text,font,rect): 
     self.text, self.font, self.rect = text, font, rect 

    def __repr__(self): 
     return str.join("",("DynamicTextElement('",self.text,"')")) 

    def draw(self,surface): 
     image=self.font.render(self.text,True,txtcolor) 
     image.blit(surface,self.rect.topleft) 

if __name__ == '__main__': 
    pygame.init() 
    mainfont=pygame.font.SysFont(None,12) 
    screen=pygame.display.set_mode((800,600)) 
    mywindow=Window(pygame.Rect(150,150,600,300)) 
    mytext=TextElement("Hello world! This is static, immutable text!",mainfont,pygame.Rect((200,200),(100,100))) 
    mydyntext=DynamicTextElement("And this is dnyamic, movable text!",mainfont,pygame.Rect((200,230),(100,100))) 
    print(mytext.image) 
    mywindow.children.append(mytext) 

    clock=pygame.time.Clock() 

    while True: 
     pygame.event.pump() 
     clock.tick(60) 
     screen.fill((55,55,55)) 
     mywindow.draw(screen) 
     mytext.draw(screen) 
     pygame.display.flip() 

아이디어가 있으십니까?

Answer 1

당신은

self.image.blit(surface, self.rect.topleft) 

를 사용하지만 잘못된 장소에서

surface.blit(self.image, self.rect.topleft) 

surface 및 self.image해야한다.

텍스트 위에 서페이스를 그렸습니다. 그래서 BTW super()

self = super().__new__(cls,text)