创建简单的python游戏-按钮功能

Question

我正在创建一个简单的 Python 游戏，其中一个角色四处移动以收集物品。我已经创建了四处移动的角色，当他们经过一个项目（图像）时，会弹出文本询问他们是否要拿起该项目以及说“是”和“否”的按钮。

如果他们单击“是”，该项目应该会消失，然后他们会返回游戏。如果他们单击“否”，该项目将保留在那里，他们应该返回游戏。为了摆脱这个项目，我试图在没有他们收集的项目的情况下重新绘制屏幕。但是，我不知道在他们单击“是”或“否”后如何返回游戏。如果按钮功能将它们返回到game_loop()，则redrawGameWindow() 功能将激活，将角色移回其起始位置并返回项目。有谁知道如何解决这个问题/在我的按钮中添加什么功能？谢谢！

代码：

import time
import sys
#we need to initiate pygame at the start of all our code
pygame.init()
display_width = 800
display_height = 600

#creating window, in tuple is width and height of screen
win = pygame.display.set_mode((display_width, display_height))

x = (display_width * 0.45)
y = (display_height * 0.8)

black = (0,0,0)
white = (255,255,255)
red = (200,0,0)
green = (0,200,0)
bright_red = (255, 0, 0)
bright_green = (0,255,0)
purple = (183,52,235)
pink = (255, 209, 237)
blue = (184, 243, 255)
bright_blue = (120, 232, 255)
bright_pink = (247, 148, 208)
transparent = (0, 0, 0, 0)




def crash():
    message_display('Item collected')

#button
def button(msg,x,y,w,h,ic,ac, action=None):
  mouse = pygame.mouse.get_pos()
  click = pygame.mouse.get_pressed()

  pygame.draw.rect(win, ic, (x,y,w,h))
    #print(mouse)
  if x + w > mouse[0] > x and y+h > mouse[1] > y:
    pygame.draw.rect(win, ac, (x,y,w,h))
    if click[0] == 1 and action != None:
      action()

  else:
    pygame.draw.rect(win, ic, (x,y,w,h))
  smallText = pygame.font.Font("Gameplay.ttf", 20)
  textSurf, textRect = text_objects(msg, smallText)
  textRect.center = ((x+(w/2), y+(h/2)))
  win.blit(textSurf, textRect)


def collect_item():


  button("YES",150,450,100,50,green, bright_green, remove_image)
  button("NO",550,450,100, 50, red, bright_red, game_loop)
  message_display('Do you want to pick up item?')

  #pygame.display.update()



#def game_loop():
  #x = (display_width * 0.45)
  #y = (display_height * 0.8)
  #x_change = 0
  #dodged = 0
  #run = True

#good idea to create a screen width variable
screenWidth = 800

#Name of our window
pygame.display.set_caption("First Game")

#Code for importing multiple images of the animated sprite

#walk right animation
walkRight = [pygame.image.load('R1.PNG'), pygame.image.load('R2.PNG'), pygame.image.load('R3.PNG')]

#walk left animation
walkLeft = [pygame.image.load('L1.PNG'), pygame.image.load('L2.PNG'), pygame.image.load('L3.PNG')]

#back ground image load in
bg = pygame.image.load('flowergrass.PNG')

#Basic standing sprite, it is the still image. shows this character when they are not moving
char = pygame.image.load('front.PNG')


def puff(x,y):
  win.blit(char (x,y))




#allows us to change our fps in the game
clock = pygame.time.Clock()

swordIMG = pygame.image.load('smallsword.png')

staffIMG = pygame.image.load('staff.png')

chestIMG = pygame.image.load('chest.png')

coinIMG = pygame.image.load('coin.png')

def text_objects(text, font):
  textSurface = font.render(text, True, black)
  return textSurface, textSurface.get_rect()

def message_display(text):
  largeText = pygame.font.Font('freesansbold.ttf', 115)
  TextSurf, TextRect = text_objects(text, largeText)
  TextRect.center = ((display_width/2)), ((display_height/2))
  win.blit(TextSurf, TextRect)

  pygame.display.update() 

  time.sleep(2)

def quitgame():
  pygame.quit()
  quit()

def game_intro():
  intro = True
  while intro:
    for event in pygame.event.get():
      if event.type == pygame.QUIT:
        pygame.quit()
        quit()
    win.fill(white)
    largeText = pygame.font.Font('StitchWarrior demo.ttf', 115)
    TextSurf, TextRect = text_objects("Title", largeText)
    TextRect.center = ((display_width/2)), ((display_height/2))
    win.blit(TextSurf, TextRect)

    #Button
    button("GO!",150,450,100,50, blue, bright_blue, game_loop)
    button("Quit",550,450,100, 50, pink, bright_pink, quitgame)
    pygame.display.update()

#creating character
x = 60
y = 450
#width and height of sprite
width = 100 
height = 100

#staff
staffwidth = 94
staffheight = 106

#coin
coinwidth = 74
coinheight = 74

#chest
chestwidth = 84
chestheight = 84

def remove_image():
  win.blit(bg, (0,0))
  char
  swordIMG
  chestIMG
  coinIMG
  sys.exit()

#velocity is how fast the character moves
vel = 5

left = False
right = False
walkCount = 0 

#function which redraws the game window, this area is for drawing, we do not draw in main loop
def redrawGameWindow():
    #x = (display_width * 0.45)
    #y = (display_height * 0.8)
    global walkCount
    win.blit(bg, (0,0)) #back ground image
    win.blit(swordIMG,(600,400))
    win.blit(staffIMG, (70, 60))
    win.blit(chestIMG, (600, 100))
    win.blit(coinIMG, (350,300))

    if walkCount + 1 >= 0:
        walkCount = 0

    if left:
        win.blit(walkLeft[walkCount], (x,y)) #displaying walk left sprite
        walkCount += 1

    elif right:
        win.blit(walkRight[walkCount], (x,y))
        walkCount += 1
    #repeat for up and down
    else:
        win.blit(char, (x,y)) #if we are not moving we blit our character


    pygame.display.update() #if we want something to show on the screen in pygame, we must update the screen



#main loop for program
#main loop
#run the variable

#def game_loop():
  #redrawGameWindow()
  #x = (display_width * 0.45)
  #y = (display_height * 0.8)
  #x_change = 0
  #dodged = 0

def game_loop(): 
  global x, y, left, right, up, down, walkCount

  #x = (display_width * 0.45)
  #y = (display_height * 0.8)

  x_change = 0

  dodged = 0

  run = True

  while run:

      #redrawGameWindow()
      #game_intro()
      clock.tick(27) #sets fps to 20 seconds
      #pygame.time.delay(100) #clock in pgyame, parameter is milliseconds

      for event in pygame.event.get(): #event is what player does eg. mouse click or key press
          if event.type == pygame.QUIT: #if they click the x button (quit)
              run = FALSE #loop = false

      #using arrow keys to move shape
      # all of the and's mean the shape cannot move off the screen
      keys = pygame.key.get_pressed()

      if keys[pygame.K_LEFT] and x > vel:
          x -= vel
          left = True
          right = False


      elif keys[pygame.K_RIGHT] and x < 800 - width - vel: #screen width - width of character
          x += vel
          right = True
          left = False

      elif keys[pygame.K_UP] and y > vel:
          y -= vel
          up = True
          down = False

      elif keys[pygame.K_DOWN] and y <  600 - height - vel:
          y += vel
          down = True
          up = False

      else:
          right = False
          left = False
          up = False
          down = False
          walkCount = 0

      if x < 100  - vel and x > 50 - vel and y > 40 - vel and y < 70:
          collect_item()

      if x > 600 - vel and x < 703 - vel and y > 400 - vel and y < 502 - vel:
          crash()

      if x > 330 - vel and x < 420 - vel and y > 280 - vel and y < 300 - vel:
          crash()

      if x > 600 - vel and x < 684 - vel and y > 100 - vel and y < 184 - vel:
        crash()

      redrawGameWindow()     
      #if y < 160 - vel and y > 90 - vel:
          #crash()

game_intro()
#game_loop() 
#redrawGameWindow() #call function
pygame.quit #game ends```}










**Updated Code**

    {```import pygame
    import time
    import sys
    #we need to initiate pygame at the start of all our code
    pygame.init()
    display_width = 800
    display_height = 600

    #creating window, in tuple is width and height of screen
    win = pygame.display.set_mode((display_width, display_height))

    x = (display_width * 0.45)
    y = (display_height * 0.8)

    black = (0,0,0)
    white = (255,255,255)
    red = (200,0,0)
    green = (0,200,0)
    bright_red = (255, 0, 0)
    bright_green = (0,255,0)
    purple = (183,52,235)
    pink = (255, 209, 237)
    blue = (184, 243, 255)
    bright_blue = (120, 232, 255)
    bright_pink = (247, 148, 208)
    transparent = (0, 0, 0, 0)




    def remove_image(obj):
        del objs[objs.index(obj)]

    def things_collected(count):
      font = pygame.font.SysFont(None, 25)
      text = font.render("Items: " + str(count), True, black)
      win.blit(text, (0,0))

    def crash():
        message_display('Item collected')

    #button
    def button(msg,x,y,w,h,ic,ac, action=None, arg=None):
      mouse = pygame.mouse.get_pos()
      click = pygame.mouse.get_pressed()

      pygame.draw.rect(win, ic, (x,y,w,h))
        #print(mouse)
      if x + w > mouse[0] > x and y+h > mouse[1] > y:
        pygame.draw.rect(win, ac, (x,y,w,h))
        if click[0] == 1 and action != None:
          if arg:
            action(arg)
          else:
            action()

      else:
        pygame.draw.rect(win, ic, (x,y,w,h))
      smallText = pygame.font.Font("Gameplay.ttf", 20)
      textSurf, textRect = text_objects(msg, smallText)
      textRect.center = ((x+(w/2), y+(h/2)))
      win.blit(textSurf, textRect)


    def collect_item():


      button("YES",150,450,100,50,blue, bright_blue, remove_image,obj)
      button("NO",550,450,100, 50, pink, bright_pink)
      message_display('Pick up item?')

      #pygame.display.update()



    #def game_loop():
      #x = (display_width * 0.45)
      #y = (display_height * 0.8)
      #x_change = 0
      #dodged = 0
      #run = True

    #good idea to create a screen width variable
    screenWidth = 800

    #Name of our window
    pygame.display.set_caption("First Game")

    #Code for importing multiple images of the animated sprite

    #walk right animation
    walkRight = [pygame.image.load('R1.PNG'), pygame.image.load('R2.PNG'), pygame.image.load('R3.PNG')]

    #walk left animation
    walkLeft = [pygame.image.load('L1.PNG'), pygame.image.load('L2.PNG'), pygame.image.load('L3.PNG')]

    #back ground image load in
    bg = pygame.image.load('path.PNG')

    opening_bg = pygame.image.load('openingbg.PNG')

    #Basic standing sprite, it is the still image. shows this character when they are not moving
    char = pygame.image.load('front.PNG')


    def puff(x,y):
      win.blit(char (x,y))




    #allows us to change our fps in the game
    clock = pygame.time.Clock()

    swordIMG = pygame.image.load('smallsword.png')

    staffIMG = pygame.image.load('staff.png')

    chestIMG = pygame.image.load('chest.png')

    coinIMG = pygame.image.load('coin.png')

    class Object:
        def __init__(self, x, y, image):
            self.x = x
            self.y = y
            self.image = image
            self.rect = image.get_rect()
            self.rect.topleft = (self.x, self.y)

    objs = []
    objs.append(Object(600, 400, swordIMG))
    objs.append(Object(70, 60, staffIMG))
    objs.append(Object(600, 100, chestIMG))
    objs.append(Object(350, 300, coinIMG))

    def text_objects(text, font):
      textSurface = font.render(text, True, black)
      return textSurface, textSurface.get_rect()

    def message_display(text):
      largeText = pygame.font.Font('Gameplay.ttf', 50)
      TextSurf, TextRect = text_objects(text, largeText)
      TextRect.center = ((display_width/2)), ((display_height/2))
      win.blit(TextSurf, TextRect)

      pygame.display.update() 

      time.sleep(2)

    def quitgame():
      pygame.quit()
      quit()

    def game_intro():
      intro = True
      while intro:
        for event in pygame.event.get():
          if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        win.blit(opening_bg, (0,0))
        largeText = pygame.font.Font('StitchWarrior demo.ttf', 70)
        TextSurf, TextRect = text_objects("The Adventures of Peyia", largeText)
        TextRect.center = ((display_width/2)), ((display_height/4))
        win.blit(TextSurf, TextRect)

        #Button
        button("GO!",150,450,100,50, blue, bright_blue, game_loop)
        button("Quit",550,450,100, 50, pink, bright_pink, quitgame)
        pygame.display.update()

    #creating character
    x = 60
    y = 450
    #width and height of sprite
    width = 100 
    height = 100

    #staff
    staffwidth = 94
    staffheight = 106

    #coin
    coinwidth = 74
    coinheight = 74

    #chest
    chestwidth = 84
    chestheight = 84

    #def remove_image():
      #win.blit(bg, (0,0))
      #char
      #swordIMG
      #chestIMG
      #coinIMG
      #collected += 1

    #velocity is how fast the character moves
    vel = 5

    left = False
    right = False
    walkCount = 0 

    #function which redraws the game window, this area is for drawing, we do not draw in main loop
    def redrawGameWindow():



        #x = (display_width * 0.45)
        #y = (display_height * 0.8)
        global walkCount
        win.blit(bg, (0,0)) #back ground image
        #win.blit(swordIMG,(600,400))
        #win.blit(staffIMG, (70, 60))
        #win.blit(chestIMG, (600, 100))
        #win.blit(coinIMG, (350,300))
        for obj in objs:
          win.blit(obj.image, obj.rect)

        if walkCount + 1 >= 0:
            walkCount = 0

        if left:
            win.blit(walkLeft[walkCount], (x,y)) #displaying walk left sprite
            walkCount += 1

        elif right:
            win.blit(walkRight[walkCount], (x,y))
            walkCount += 1
        #repeat for up and down
        else:
            win.blit(char, (x,y)) #if we are not moving we blit our character


        pygame.display.update() #if we want something to show on the screen in pygame, we must update the screen



    #main loop for program
    #main loop
    #run the variable

    #def game_loop():
      #redrawGameWindow()
      #x = (display_width * 0.45)
      #y = (display_height * 0.8)
      #x_change = 0
      #dodged = 0

    def game_loop(): 
      global x, y, left, right, up, down, walkCount
      x = 60
      y = 450
      #x = (display_width * 0.45)
      #y = (display_height * 0.8)

      x_change = 0

      collected = 0

      run = True

      while run:
         for obj in reversed(objs): #if delete obj in list while looping through it, the loop will still try to get the deleted obj, so reverse to fix this
          if obj.rect.collidepoint((x + vel, y + vel)):
            collect_item(obj) #give the object so we know which one to delete


          redrawGameWindow()
          #game_intro()
          clock.tick(27) #sets fps to 20 seconds
          #pygame.time.delay(100) #clock in pgyame, parameter is milliseconds
          things_collected(collected)

          for event in pygame.event.get(): #event is what player does eg. mouse click or key press
              if event.type == pygame.QUIT: #if they click the x button (quit)
                  run = FALSE #loop = false

          #using arrow keys to move shape
          # all of the and's mean the shape cannot move off the screen
          keys = pygame.key.get_pressed()

          if keys[pygame.K_LEFT] and x > vel:
              x -= vel
              left = True
              right = False


          elif keys[pygame.K_RIGHT] and x < 800 - width - vel: #screen width - width of character
              x += vel
              right = True
              left = False

          elif keys[pygame.K_UP] and y > vel:
              y -= vel
              up = True
              down = False

          elif keys[pygame.K_DOWN] and y <  600 - height - vel:
              y += vel
              down = True
              up = False

          else:
              right = False
              left = False
              up = False
              down = False
              walkCount = 0

          if x < 100  - vel and x > 50 - vel and y > 40 - vel and y < 70:
              collect_item()

          if x > 600 - vel and x < 703 - vel and y > 400 - vel and y < 502 - vel:
              crash()

          if x > 330 - vel and x < 420 - vel and y > 280 - vel and y < 300 - vel:
              crash()

          if x > 600 - vel and x < 684 - vel and y > 100 - vel and y < 184 - vel:
            crash()

          #redrawGameWindow()     
          #if y < 160 - vel and y > 90 - vel:
              #crash()

    game_intro()
    #game_loop() 
    #redrawGameWindow() #call function
    pygame.quit #game ends

Answer 1

我这样做的方法是为对象创建一个类，然后创建对象并将它们放入列表中，当您绘制窗口时，循环遍历列表并绘制每个对象，如果您想“摆脱” ' 的对象，将其从列表中删除，如果要添加对象，请将其添加到列表中

这是一个例子

class Object:
    def __init__(self, x, y, image):
        self.x = x
        self.y = y
        self.image = image
        self.rect = image.get_rect()
        self.rect.topleft = (self.x, self.y)

objs = []
objs.append(Object(100, 100, swordIMG))
objs.append(Object(300, 400, staffIMG))
objs.append(Object(200, 340, chestIMG))

def redrawGameWindow():
    for obj in objs:
        win.blit(obj.image, obj.rect)

def game_loop():
    while run:
        for obj in reversed(objs): #if delete obj in list while looping through it, the loop will still try to get the deleted obj, so reverse to fix this
            if obj.rect.collidpoint((x + vel, y + vel)):
                collect_item(obj) #give the object so we know which one to delete

def button(msg,x,y,w,h,ic,ac, action=None, arg = None):
  mouse = pygame.mouse.get_pos()
  click = pygame.mouse.get_pressed()

  pygame.draw.rect(win, ic, (x,y,w,h))
    #print(mouse)
  if x + w > mouse[0] > x and y+h > mouse[1] > y:
    pygame.draw.rect(win, ac, (x,y,w,h))
    if click[0] == 1 and action != None:
      if arg:
         action(arg)
      else:
         action()
  else:
    pygame.draw.rect(win, ic, (x,y,w,h))
  smallText = pygame.font.Font("Gameplay.ttf", 20)
  textSurf, textRect = text_objects(msg, smallText)
  textRect.center = ((x+(w/2), y+(h/2)))
  win.blit(textSurf, textRect)

def collect_items(obj):
  button("YES",150,450,100,50,green, bright_green, remove_image,obj)
  button("NO",550,450,100, 50, red, bright_red)
  message_display('Do you want to pick up item?')

def remove_image(obj):
    del objs[objs.index(obj)]

而且按钮功能看起来不错，我最近尝试为 pygame here 制作一个可自定义但简单的按钮，如果你想要一些灵感的话

---

import time
import sys
import pygame
#we need to initiate pygame at the start of all our code
pygame.init()
display_width = 800
display_height = 600

#creating window, in tuple is width and height of screen
win = pygame.display.set_mode((display_width, display_height))

x = (display_width * 0.45)
y = (display_height * 0.8)

black = (0,0,0)
white = (255,255,255)
red = (200,0,0)
green = (0,200,0)
bright_red = (255, 0, 0)
bright_green = (0,255,0)
purple = (183,52,235)
pink = (255, 209, 237)
blue = (184, 243, 255)
bright_blue = (120, 232, 255)
bright_pink = (247, 148, 208)
transparent = (0, 0, 0, 0)

#allows us to change our fps in the game
clock = pygame.time.Clock()

swordIMG = pygame.Surface((40,40))
swordIMG.fill((255,0,0))

staffIMG = swordIMG

chestIMG = swordIMG

coinIMG = swordIMG

#good idea to create a screen width variable
screenWidth = 800

#Name of our window
pygame.display.set_caption("First Game")

#Code for importing multiple images of the animated sprite

img = pygame.Surface((50,50))
img.fill((0,255,0))

#walk right animation
walkRight = [img, img, img]

#walk left animation
walkLeft = walkRight

#back ground image load in
bg = pygame.Surface((800,800))
bg.fill((255,255,255))

#Basic standing sprite, it is the still image. shows this character when they are not moving
char = pygame.Surface((50,50))
char.fill((0,255,0))

#velocity is how fast the character moves
vel = 5

left = False
right = False
walkCount = 0 

#creating character
x = 60
y = 450
#width and height of sprite
width = 100 
height = 100

#staff
staffwidth = 94
staffheight = 106

#coin
coinwidth = 74
coinheight = 74

#chest
chestwidth = 84
chestheight = 84

class Object:
    def __init__(self, x, y, image):
        self.x = x
        self.y = y
        self.image = image
        self.rect = image.get_rect()
        self.rect.topleft = (self.x, self.y)

objs = []
objs.append(Object(600, 400, swordIMG))
objs.append(Object(70, 60, staffIMG))
objs.append(Object(600, 100, chestIMG))
objs.append(Object(350, 300, coinIMG))

can_pickup = True
prev_frame_over_Object = False


def crash():
    message_display('Item collected')

#button
def button(msg,x,y,w,h,ic,ac, action=None, arg=None):
    mouse = pygame.mouse.get_pos()
    click = pygame.mouse.get_pressed()
    pygame.draw.rect(win, ic, (x,y,w,h))
    #print(mouse)
    if x + w > mouse[0] > x and y+h > mouse[1] > y:
        pygame.draw.rect(win, ac, (x,y,w,h))
        if click[0] == 1 and action != None:
            if arg:
                action(arg)
            else:
                action()

    else:
        pygame.draw.rect(win, ic, (x,y,w,h))
        smallText = pygame.font.Font(pygame.font.match_font('calibri'), 20)
        textSurf, textRect = text_objects(msg, smallText)
        textRect.center = ((x+(w/2), y+(h/2)))
        win.blit(textSurf, textRect)

def NO():
    global can_pickup
    can_pickup = False


def collect_item(obj):

    button("YES",150,450,100,50,green, bright_green, remove_image, obj)
    message_display('Do you want to pick up item?')
    button("NO",550,450,100, 50, red, bright_red, NO)


def puff(x,y):
    win.blit(char (x,y))

def text_objects(text, font):
    textSurface = font.render(text, True, black)
    return textSurface, textSurface.get_rect()

def message_display(text):
    largeText = pygame.font.Font('freesansbold.ttf', 115)
    TextSurf, TextRect = text_objects(text, largeText)
    TextRect.center = ((display_width/2)), ((display_height/2))
    win.blit(TextSurf, TextRect)

def quitgame():
    pygame.quit()
    quit()

def game_intro():
    intro = True
    while intro:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()
        win.fill(white)
        largeText = pygame.font.Font(pygame.font.match_font('calibri'), 115)
        TextSurf, TextRect = text_objects("Title", largeText)
        TextRect.center = ((display_width/2)), ((display_height/2))
        win.blit(TextSurf, TextRect)

        #Button
        button("GO!",150,450,100,50, blue, bright_blue, game_loop)
        button("Quit",550,450,100, 50, pink, bright_pink, quitgame)
        pygame.display.update()


def remove_image(obj):
    del objs[objs.index(obj)]

#function which redraws the game window, this area is for drawing, we do not draw in main loop
def redrawGameWindow():
    global walkCount
    win.blit(bg, (0,0)) #back ground image
    for obj in objs:
        win.blit(obj.image, obj.rect)

    if walkCount + 1 >= 0:
        walkCount = 0

    if left:
        win.blit(walkLeft[walkCount], (x,y)) #displaying walk left sprite
        walkCount += 1

    elif right:
        win.blit(walkRight[walkCount], (x,y))
        walkCount += 1
    #repeat for up and down
    else:
        win.blit(char, (x,y)) #if we are not moving we blit our character



def game_loop(): 
    global x, y, left, right, up, down, walkCount, prev_frame_over_Object, can_pickup

    x_change = 0

    dodged = 0

    run = True

    while run:

        #redrawGameWindow()
        #game_intro()
        clock.tick(27) #sets fps to 20 seconds
        #pygame.time.delay(100) #clock in pgyame, parameter is milliseconds

        for event in pygame.event.get(): #event is what player does eg. mouse click or key press
            if event.type == pygame.QUIT: #if they click the x button (quit)
                run = False #loop = false

        #using arrow keys to move shape
        # all of the and's mean the shape cannot move off the screen
        keys = pygame.key.get_pressed()

        if keys[pygame.K_LEFT] and x > vel:
            x -= vel
            left = True
            right = False

        elif keys[pygame.K_RIGHT] and x < 800 - width - vel: #screen width - width of character
            x += vel
            right = True
            left = False

        elif keys[pygame.K_UP] and y > vel:
            y -= vel
            up = True
            down = False

        elif keys[pygame.K_DOWN] and y <  600 - height - vel:
            y += vel
            down = True
            up = False

        else:
            right = False
            left = False
            up = False
            down = False
            walkCount = 0

        redrawGameWindow()     

        is_over = False

        for obj in reversed(objs): #if delete obj in list while looping through it, the loop will still try to get the deleted obj, so reverse to fix this
            if obj.rect.collidepoint((x + vel, y + vel)):
                is_over = True
                if prev_frame_over_Object == False:
                    can_pickup = True
                if can_pickup:
                    collect_item(obj) #give the object so we know which one to delete

        prev_frame_over_Object = is_over
        pygame.display.update() #if we want something to show on the screen in pygame, we must update the screen

game_intro()
pygame.quit #game ends```}

此代码有效，我发现您在文本显示中有 time.sleep，因此 fps 下降到每秒半帧，但是一旦结束并且我移动了绘图顺序，一切似乎都正常，我没有有你的图片所以我把它们改成正方形，它们在顶部，不要复制粘贴它们