我一直试图创造一款游戏。在游戏中有一架飞机会飞入递归的背景矩形。矩形是通过无限循环创建的，所以一旦它进入循环，其余的函数就不会起作用，例如对象。我的代码在下面，问题出现在主循环中。我希望对象与递归矩形一起移动，但是当矩形开始在循环中绘制时它会冻结。 PS有助于解决这个问题，因为我已经尝试了几乎每个代码示例来修复它。谢谢
编辑：游戏的主要功能是使喷气机看起来像矩形一样递归（有两个和while循环使它同时上下移动，让人觉得喷气机正在进入屏幕。）。但是由于首先绘制了喷射，当程序进入矩形循环时，喷射器冻结并且不能移动。我希望喷射器在背景移动的同时移动。import pygame
import random
# Colors
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
Blue = (2,55,55)
black=(0,0,0)
end_it=False
def recursive_draw(x, y, width, height):
""" Recursive rectangle function. """
pygame.draw.rect(screen, WHITE,
[x, y, width, height],
1)
speed = [10,0]
rect_change_x = 10
rect_change_y = 10
# Is the rectangle wide enough to draw again?
if (width > 25):
# Scale down
x += width * .1
y += height * .1
width *= .8
height *= .8
# Recursively draw again
recursive_draw(x, y, width, height)
def recursive_draw2(x, y, width, height):
""" Recursive rectangle function. """
pygame.draw.rect(screen, Blue,
[x, y, width, height],
1)
speed = [10,0]
rect_change_x = 10
rect_change_y = 10
# Is the rectangle wide enough to draw again?
if (width > 25):
x += width * .1
y += height * .1
width *= .8
height *= .8
# Recursively draw again
recursive_draw2(x, y, width, height)
'''
def timer(self):
screen.fill(black)
myfont=pygame.font.SysFont("Britannic Bold", 40)
label2=myfont.render("Ready?", 1, (255, 0, 0))
screen.blit(label2, (350,250))
self =3
nlist=[]
for i in range (2):
score = myfont.render(str(self),1,(255,0,0))
screen.blit((score), (350,250))
self = self - 1
nlist.append(self)
pygame.display.flip()
'''
pygame.init()
#rectanglelist = [big()]
# Set the height and width of the screen
size = [700, 500]
screen = pygame.display.set_mode(size)
pygame.display.set_caption("My Game")
# Loop until the user clicks the close button.
done = False
# Used to manage how fast the screen updates
clock = pygame.time.Clock()
USEREVENT = 0
pygame.time.set_timer(USEREVENT+1, 10)
milliseconds = 0
seconds = 0
start_it = False
while (end_it==False):
screen.fill(black)
myfont=pygame.font.SysFont("Britannic Bold", 40)
nlabel=myfont.render("Welcome to "+ " Jet shooter ", 1, (255, 0, 0))
label=myfont.render("Click on the mouse to start ", 1, (255, 0, 0))
for event in pygame.event.get():
if event.type == pygame.MOUSEBUTTONDOWN:
end_it=True
screen.blit(nlabel,(200, 100))
screen.blit(label, (170,300))
pygame.display.flip()
while (start_it==False):
screen.fill(black)
myfont2=pygame.font.SysFont("Britannic Bold", 40)
label2=myfont2.render("Ready?", 1, (255, 0, 0))
screen.blit(label2, (300,250))
pygame.display.flip()
pygame.time.wait(3000)
start_it = True
fall = False
while (fall==False):
nlist = [3,2,1]
for i in (nlist):
screen.fill(black)
n = str(i)
myfont3=pygame.font.SysFont("Britannic Bold", 40)
score = myfont3.render(n,1,(255,0,0))
screen.blit((score), (350,250))
pygame.display.flip()
pygame.time.wait(1000)
screen.fill(black)
myfont4=pygame.font.SysFont("Britannic Bold", 40)
label4=myfont3.render("GOOO!!!", 1, (255, 0, 0))
screen.blit(label4, (300,250))
pygame.display.flip()
pygame.time.wait (1000)
fall = True
b = 0
flip = 1
a = 0
time = 100
x_speed = 0
y_speed = 0
x_coord = 320
y_coord = 400
image = pygame.image.load("spaceship.gif").convert()
# -------- Main Program Loop -----------
while not done:
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
# User pressed down on key
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
x_speed = -10
if event.key == pygame.K_RIGHT:
x_speed = 10
if event.key == pygame.K_UP:
y_speed = -10
if event.key == pygame.K_DOWN:
y_speed = 10
# User let go of key
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
x_speed = 0
if event.key == pygame.K_RIGHT:
x_speed = 0
if event.key == pygame.K_UP:
y_speed = 0
if event.key == pygame.K_DOWN:
y_speed = 0
x_coord += x_speed
y_coord += y_speed
# Set the screen background
screen.fill(BLACK)
screen.blit(image, [x_coord,y_coord])
pygame.display.flip()
clock.tick(60)
# ALL CODE TO DRAW SHOULD GO BELOW THIS COMMENT
# ALL CODE TO DRAW SHOULD GO ABOVE THIS COMMENT
# Go ahead and update the screen with what we've drawn.
# Limit to 60 frames per second
# Be IDLE friendly. If you forget this line, the program will 'hang'
# on exit.
while a == 0 :
if flip == 1 :
recursive_draw(35,25,625,450)
recursive_draw2(0, 0, 700, 500)
flip = flip + 1
pygame.display.flip()
clock.tick(60)
if flip == 2 :
recursive_draw(0, 0, 700, 500)
recursive_draw2(35, 25, 625, 450)
flip = flip - 1
pygame.display.flip()
clock.tick(60)
pygame.quit()
答案 0 :(得分：0)
正如@Paul Rooney所说，你会想要使用线程。这是你将如何
import thread
.
.
.
# Instead of calling the function as you are, run it on a new thread
thread.start_new_thread(drawRectanglesFunction, ())
答案 1 :(得分：0)
据我所知，你正在以不正确的顺序绘制东西，我相信不需要循环。 （而a == 0）。另一件事是你经常翻转显示器，很难跟踪首先绘制的内容，以及之后绘制的内容。我的建议是快速重写你的程序，使它看起来像这样：
flip = 1
while not done:
##Catch and handle events()
screen.fill(BLACK)
if flip == 1 :
recursive_draw(35,25,625,450)
recursive_draw2(0, 0, 700, 500)
flip = flip + 1
elif flip == 2 :
recursive_draw(0, 0, 700, 500)
recursive_draw2(35, 25, 625, 450)
flip = flip - 1
screen.blit(image, [x_coord,y_coord])
pygame.display.flip()
clock.tick(60);
我希望这会有所帮助。
（编辑：我自己做了这个并让程序运行）