[英]Pygame: Text Won't Appear Only Background
我剛剛添加了一些代碼,以記分牌的方式嘗試了我的游戲,但遇到了錯誤。 僅顯示我的背景。 沒有文字或任何內容。 這是我正在使用的代碼:
class MenuScores(MenuClass):
def __init__(self, surface, engine):
MenuClass.__init__(self, surface)
self.MoonSurvival = engine
self.text = "Name"
def name():
size = 36
screen = pygame.display.set_mode((1280, 720))
name = ""
font = pygame.font.SysFont('data/fonts/score.ttf', size)
background = pygame.image.load('data/images/bg.jpg')
while True:
# readlines returns a list; having this in
# loop allows pygame to draw recently added
# string; no need to close and open a window
namefile = open('score.txt', 'r')
names = namefile.readlines()
for event in pygame.event.get():
if event.type == KEYDOWN:
if event.unicode.isalpha():
if len(name) < 4:
if event.unicode == 3:
name += 0
else:
name += event.unicode
elif event.key == K_BACKSPACE:
name = name[:-1]
elif event.key == K_RETURN:
f = open("data/scores/score.txt", "a")
f.write(str(name) + " " + str(self.MoonSurvival.total_score) + "\n")
f.close()
name = ""
self.text = ""
elif event.type == QUIT:
return
# create a Rectangle container, where yours
# text variable will be drawn
# Rect(left, top, width, height)
textrect = Rect(0, 0, 100, size)
screen.fill((0, 0, 0))
for i in names:
# iterate through lines from text file (it is stored
# in names variable and it is a list)
# create text variable and draw it to textrect
text = font.render(i[:-1], True, (255,0,0), (0,0,0))
screen.blit(text, textrect)
# change y coordinate of textrect; in next iteration
# next line will appear below the previous line
textrect.centery += size
block = font.render(name, True, (255, 255, 255))
rect = block.get_rect()
rect.center = screen.get_rect().center
screen.blit(background, (0, 0))
screen.blit(block, rect)
pygame.display.update()
pygame.display.flip()
def draw(self):
self.renderText()
self.drawHint()
self.surface.blit(self.background, (0, 0))
# update surface
pygame.display.update()
def _handleEvents(self, event):
def pressed(key):
keys = pygame.key.get_pressed()
if keys[key]:
return True
else:
return False
if pressed(pygame.K_SPACE):
self.MoonSurvival.game_state = STATE_MENU
self.MoonSurvival.level = 1
def renderText(self):
# split texts at \n (newline)
texts = self.text.split('\n')
for i in range(len(texts)):
textSurface = self.menufont.render(texts[i], 0, (255, 0, 0))
textRect = textSurface.get_rect()
textRect.centerx = SCREEN_WIDTH / 2
textRect.centery = SCREEN_HEIGHT / 2 + i * self.menufont.size(texts[i])[1]
self.surface.blit(textSurface, textRect)
def drawHint(self):
textSurface = self.menufont.render('(Press SPACE to return to menu)', 0, (255, 0, 0))
textRect = textSurface.get_rect()
textRect.centerx = SCREEN_WIDTH / 2
textRect.centery = SCREEN_HEIGHT - 50
self.surface.blit(textSurface, textRect)
我真的不知道該如何解決。 單獨顯示文本時(def name())看起來很好,那為什么在這里不起作用?
self.renderText()
self.drawHint()
self.surface.blit(self.background, (0, 0))
在這里,您將在self.surface
上繪制文本,然后在self.surface
繪制提示,然后在self.surface
背景圖像self.surface
在其他所有內容之上。
相反,您應該先繪制背景,然后再繪制其他所有內容。
self.surface.blit(self.background, (0, 0))
self.renderText()
self.drawHint()
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