如果语句在一段时间后停止工作并且字体不呈现
If Statement stops working after sometime and font not rendering
我正在用 pygame & python 3.10.0 创建一个游戏，使用 VSCode 一切正常，但是这个 if 语句在一段时间后停止工作并且字体不绘制但我无法查明问题所在，因为 if 语句通常运行到 10 或 11 分，但它可以更快，如 2:
if player.rect.colliderect(food):
pygame.sprite.Sprite.kill(food)
food.rect.x = random.randrange(20, 1700)
food.rect.y = random.randrange(20, 860)
all_sprites_list.add(food)
score += 1
print(score)
完整代码：
import pygame
import sys
import time
import random
import ctypes
from ctypes import wintypes
from pygame import sprite
from pygame.draw import rect
from pygame.event import pump, wait
from pygame import font
pygame.font.init()
myappid = 'elementalstudios.snake.Alpha 0_1' # arbitrary string
ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)
#------ Initialize Variables------#
# Player
player_width = 20
player_height = 20
# Food
food_width = 10
food_height = 10
# Colours
seafoam_gr = (159, 226, 191)
black = (0, 0, 0)
blue = (0, 0, 255)
red = (255, 0, 0)
green = (0, 255, 0)
white = (255, 255, 255)
# Score
score = 0
#------ Score Font Initialize ------#
font = pygame.font.Font(None, 50)
text = font.render("Score:", False, white, None)
#------Sprites Class------#
class Sprite(pygame.sprite.Sprite):
def __init__(self, color, height, width):
super().__init__()
self.image = pygame.Surface([width, height])
self.image.fill(seafoam_gr)
self.image.set_colorkey(black)
pygame.draw.rect(self.image,
color,
pygame.Rect(0, 0, width, height))
self.rect = self.image.get_rect()
def moveRight(self, pixels):
self.rect.x += pixels
def moveLeft(self, pixels):
self.rect.x -= pixels
def moveUp(self, speed):
self.rect.y -= speed * speed / 5
def moveDown(self, speed):
self.rect.y += speed * speed / 5
#------ Font Class ------#
def create_font(t,s = 24, colour_font = white, bold = False, italic = False):
font = pygame.font.Font("prstart.ttf", s, bold, italic)
text = font.render(t, True, colour_font)
return text
#------ Initialize Pygame and Window------#
pygame.init()
icon = pygame.image.load('Icon.ico')
pygame.display.set_icon(icon)
gameDisplay = pygame.display.set_mode((1920,1080), pygame.FULLSCREEN)
#rect = pygame.Rect( * gameDisplay.get_rect().center, 0, 0).inflate(100, 100)
pygame.display.set_caption("Blocky")
gameDisplay.fill(black)
clock = pygame.time.Clock()
running = True
#------Initialize Sprites------#
all_sprites_list = pygame.sprite.Group()
player = Sprite(seafoam_gr, player_height, player_width)
food = Sprite(red, food_height, food_width)
player.rect.x = 960
player.rect.y = 540
food.rect.x = 20 #random.randrange(20, 1800)
food.rect.y = 30 #random.randrange(20, 1050)
#------Add Sprites to sprite list------#
all_sprites_list.add(player)
all_sprites_list.add(food)
clock = pygame.time.Clock()
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
#------Eating------#
if player.rect.colliderect(food):
pygame.sprite.Sprite.kill(food)
food.rect.x = random.randrange(20, 1700)
food.rect.y = random.randrange(20, 860)
all_sprites_list.add(food)
score += 1
print(score)
#------ Score Draw ------#
text_rect = text.get_rect()
text_rect.center = (100, 150)
gameDisplay.blit(text, text_rect)
#------Key Movement------#
keys = pygame.key.get_pressed()
# Move Left
if keys[pygame.K_a]:
player.moveLeft(3)
if keys[pygame.K_LCTRL]:
player.moveLeft(5)
if keys[pygame.K_LEFT]:
player.moveLeft(3)
if keys[pygame.K_LCTRL]:
player.moveLeft(5)
# Move Right
if keys[pygame.K_d]:
player.moveRight(5)
if keys[pygame.K_LCTRL]:
player.moveRight(5)
if keys[pygame.K_RIGHT]:
player.moveRight(3)
if keys[pygame.K_LCTRL]:
player.moveRight(5)
# Move Down
if keys[pygame.K_s]:
player.moveDown(3)
if keys[pygame.K_LCTRL]:
player.moveDown(5)
if keys[pygame.K_DOWN]:
player.moveDown(3)
if keys[pygame.K_LCTRL]:
player.moveDown(5)
# Move Up
if keys[pygame.K_w]:
player.moveUp(3)
if keys[pygame.K_LCTRL]:
player.moveUp(5)
if keys[pygame.K_UP]:
player.moveUp(3)
if keys[pygame.K_LCTRL]:
player.moveUp(5)
all_sprites_list.update()
gameDisplay.fill(black)
all_sprites_list.draw(gameDisplay)
pygame.display.flip()
clock.tick(60)
pygame.quit()
quit()
没有必要 kill 食物对象。改变食物的位置就足够了。 pygame.sprite.Sprite.kill 只是从所有 Gorups 中删除 Sprite 对象。所以调用 kill 然后将对象添加回 Group.
是没有意义的
文本未显示，因为您在清除显示之前绘制了它。 pygame.Surface.fill 用纯色填充 Surface。之前绘制的所有内容都将被清除。 blit fill.
之后的文字
如果分数已更改，您将必须再次渲染文本 Surface。
我建议简化移动播放器的代码。参见 How can I make a sprite move when key is held down。
class Sprite(pygame.sprite.Sprite):
def __init__(self, color, x, y, height, width):
super().__init__()
self.image = pygame.Surface([width, height])
self.image.fill(color)
self.image.set_colorkey(black)
self.rect = self.image.get_rect(topleft = (x, y))
self.x, self.y = self.rect.x, self.rect.y
def move(self, move_x, move_y, speed_up):
if move_x or move_y:
direction = pygame.math.Vector2(move_x, move_y)
direction.scale_to_length(5 if speed_up else 3)
self.x += direction.x
self.y += direction.y
self.rect.x, self.rect.y = round(self.x), round(self.y)
player = Sprite(seafoam_gr, 400, 300, player_height, player_width)
food = Sprite(red, 20, 30, food_height, food_width)
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
if player.rect.colliderect(food):
food.rect.x = random.randrange(20, 780)
food.rect.y = random.randrange(20, 580)
score += 1
# render text
text = font.render("Score: " + str(score), False, white, None)
keys = pygame.key.get_pressed()
move_x = ((keys[pygame.K_d] or keys[pygame.K_RIGHT]) - (keys[pygame.K_a] or keys[pygame.K_LEFT]))
move_y = ((keys[pygame.K_s] or keys[pygame.K_DOWN]) - (keys[pygame.K_w] or keys[pygame.K_UP]))
player.move(move_x, move_y, keys[pygame.K_LCTRL])
all_sprites_list.update()
gameDisplay.fill(black)
# draw text
gameDisplay.blit(text, text.get_rect(center = (100, 150)))
all_sprites_list.draw(gameDisplay)
pygame.display.flip()
clock.tick(60)
pygame.quit()
quit()
我正在用 pygame & python 3.10.0 创建一个游戏，使用 VSCode 一切正常，但是这个 if 语句在一段时间后停止工作并且字体不绘制但我无法查明问题所在，因为 if 语句通常运行到 10 或 11 分，但它可以更快，如 2:
if player.rect.colliderect(food):
pygame.sprite.Sprite.kill(food)
food.rect.x = random.randrange(20, 1700)
food.rect.y = random.randrange(20, 860)
all_sprites_list.add(food)
score += 1
print(score)
完整代码：
import pygame
import sys
import time
import random
import ctypes
from ctypes import wintypes
from pygame import sprite
from pygame.draw import rect
from pygame.event import pump, wait
from pygame import font
pygame.font.init()
myappid = 'elementalstudios.snake.Alpha 0_1' # arbitrary string
ctypes.windll.shell32.SetCurrentProcessExplicitAppUserModelID(myappid)
#------ Initialize Variables------#
# Player
player_width = 20
player_height = 20
# Food
food_width = 10
food_height = 10
# Colours
seafoam_gr = (159, 226, 191)
black = (0, 0, 0)
blue = (0, 0, 255)
red = (255, 0, 0)
green = (0, 255, 0)
white = (255, 255, 255)
# Score
score = 0
#------ Score Font Initialize ------#
font = pygame.font.Font(None, 50)
text = font.render("Score:", False, white, None)
#------Sprites Class------#
class Sprite(pygame.sprite.Sprite):
def __init__(self, color, height, width):
super().__init__()
self.image = pygame.Surface([width, height])
self.image.fill(seafoam_gr)
self.image.set_colorkey(black)
pygame.draw.rect(self.image,
color,
pygame.Rect(0, 0, width, height))
self.rect = self.image.get_rect()
def moveRight(self, pixels):
self.rect.x += pixels
def moveLeft(self, pixels):
self.rect.x -= pixels
def moveUp(self, speed):
self.rect.y -= speed * speed / 5
def moveDown(self, speed):
self.rect.y += speed * speed / 5
#------ Font Class ------#
def create_font(t,s = 24, colour_font = white, bold = False, italic = False):
font = pygame.font.Font("prstart.ttf", s, bold, italic)
text = font.render(t, True, colour_font)
return text
#------ Initialize Pygame and Window------#
pygame.init()
icon = pygame.image.load('Icon.ico')
pygame.display.set_icon(icon)
gameDisplay = pygame.display.set_mode((1920,1080), pygame.FULLSCREEN)
#rect = pygame.Rect( * gameDisplay.get_rect().center, 0, 0).inflate(100, 100)
pygame.display.set_caption("Blocky")
gameDisplay.fill(black)
clock = pygame.time.Clock()
running = True
#------Initialize Sprites------#
all_sprites_list = pygame.sprite.Group()
player = Sprite(seafoam_gr, player_height, player_width)
food = Sprite(red, food_height, food_width)
player.rect.x = 960
player.rect.y = 540
food.rect.x = 20 #random.randrange(20, 1800)
food.rect.y = 30 #random.randrange(20, 1050)
#------Add Sprites to sprite list------#
all_sprites_list.add(player)
all_sprites_list.add(food)
clock = pygame.time.Clock()
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
#------Eating------#
if player.rect.colliderect(food):
pygame.sprite.Sprite.kill(food)
food.rect.x = random.randrange(20, 1700)
food.rect.y = random.randrange(20, 860)
all_sprites_list.add(food)
score += 1
print(score)
#------ Score Draw ------#
text_rect = text.get_rect()
text_rect.center = (100, 150)
gameDisplay.blit(text, text_rect)
#------Key Movement------#
keys = pygame.key.get_pressed()
# Move Left
if keys[pygame.K_a]:
player.moveLeft(3)
if keys[pygame.K_LCTRL]:
player.moveLeft(5)
if keys[pygame.K_LEFT]:
player.moveLeft(3)
if keys[pygame.K_LCTRL]:
player.moveLeft(5)
# Move Right
if keys[pygame.K_d]:
player.moveRight(5)
if keys[pygame.K_LCTRL]:
player.moveRight(5)
if keys[pygame.K_RIGHT]:
player.moveRight(3)
if keys[pygame.K_LCTRL]:
player.moveRight(5)
# Move Down
if keys[pygame.K_s]:
player.moveDown(3)
if keys[pygame.K_LCTRL]:
player.moveDown(5)
if keys[pygame.K_DOWN]:
player.moveDown(3)
if keys[pygame.K_LCTRL]:
player.moveDown(5)
# Move Up
if keys[pygame.K_w]:
player.moveUp(3)
if keys[pygame.K_LCTRL]:
player.moveUp(5)
if keys[pygame.K_UP]:
player.moveUp(3)
if keys[pygame.K_LCTRL]:
player.moveUp(5)
all_sprites_list.update()
gameDisplay.fill(black)
all_sprites_list.draw(gameDisplay)
pygame.display.flip()
clock.tick(60)
pygame.quit()
quit()
没有必要 kill 食物对象。改变食物的位置就足够了。 pygame.sprite.Sprite.kill 只是从所有 Gorups 中删除 Sprite 对象。所以调用 kill 然后将对象添加回 Group.
文本未显示，因为您在清除显示之前绘制了它。 pygame.Surface.fill 用纯色填充 Surface。之前绘制的所有内容都将被清除。 blit fill.
之后的文字
如果分数已更改，您将必须再次渲染文本 Surface。
我建议简化移动播放器的代码。参见 How can I make a sprite move when key is held down。
class Sprite(pygame.sprite.Sprite):
def __init__(self, color, x, y, height, width):
super().__init__()
self.image = pygame.Surface([width, height])
self.image.fill(color)
self.image.set_colorkey(black)
self.rect = self.image.get_rect(topleft = (x, y))
self.x, self.y = self.rect.x, self.rect.y
def move(self, move_x, move_y, speed_up):
if move_x or move_y:
direction = pygame.math.Vector2(move_x, move_y)
direction.scale_to_length(5 if speed_up else 3)
self.x += direction.x
self.y += direction.y
self.rect.x, self.rect.y = round(self.x), round(self.y)
player = Sprite(seafoam_gr, 400, 300, player_height, player_width)
food = Sprite(red, 20, 30, food_height, food_width)
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
running = False
if player.rect.colliderect(food):
food.rect.x = random.randrange(20, 780)
food.rect.y = random.randrange(20, 580)
score += 1
# render text
text = font.render("Score: " + str(score), False, white, None)
keys = pygame.key.get_pressed()
move_x = ((keys[pygame.K_d] or keys[pygame.K_RIGHT]) - (keys[pygame.K_a] or keys[pygame.K_LEFT]))
move_y = ((keys[pygame.K_s] or keys[pygame.K_DOWN]) - (keys[pygame.K_w] or keys[pygame.K_UP]))
player.move(move_x, move_y, keys[pygame.K_LCTRL])
all_sprites_list.update()
gameDisplay.fill(black)
# draw text
gameDisplay.blit(text, text.get_rect(center = (100, 150)))
all_sprites_list.draw(gameDisplay)
pygame.display.flip()
clock.tick(60)
pygame.quit()
quit()