为什么分数在pygame中会突然增加？

Question

我正在尝试在pygame中制作游戏，但遇到两个错误。

错误1

我的分数在游戏中突然增加，我的情况是一次只能增加1分。 我增加分数的代码是：

 if thing_starty >display_height:
            thing_stary = 0-thing_height
            thing_startx= random.randrange(0,display_width)
            dodged += 1
            thing_speed += 1
            thing_width += (dodged * 1.2)

这是我的分数，每当障碍离开屏幕时，分数应增加一。

错误2

在我的游戏中，从上到下都有一个黑色的矩形，但问题是一旦它离开屏幕，它就不会再回来。而且，如果该块经过屏幕之外，即使没有碰撞也将结束游戏。
该块返回的代码是：

 if thing_starty >display_height: #Check if block is there in the screen or not
            thing_stary = 0 - thing_height
            thing_startx= random.randrange(0,display_width)
            dodged += 1
            thing_speed += 1
            thing_width += (dodged * 1.2)

完整代码：

import pygame
import time
import random

pygame.init()

#Colours
white = (255,255,255)
black = (0,0,0)
red = (255,0,0)

#Game Display
display_width = 1080
display_height  = 720
gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('Eat It! ~ Snapnel Productions')

#Clock
clock = pygame.time.Clock()
FPS = 60

#Font Size
exsmallfont = pygame.font.SysFont("comicsansms", 17)
smallfont = pygame.font.SysFont("comicsansms", 25)
medfont = pygame.font.SysFont("comicsansms", 50)
largefont = pygame.font.SysFont("comicsansms", 80)

#Car
def car(x,y):
    gameDisplay.blit(carimg,(x,y))
global x, y, x_change
carimg=pygame.image.load('food.png')
#With of the car( i.e food image)
car_width=10

#Things
def things(thingx,thingy,thingw,thingh,color):
    pygame.draw.rect(gameDisplay,color,[thingx,thingy,thingw,thingh])

#Things doged
def things_dodged(count):
    font = pygame.font.SysFont(None, 25)
    text = font.render("Dodged: "+str(count), True, red)
    gameDisplay.blit(text,(0,0))
#Starting Of the game
def game_intro():
    intro = True
    while intro:    
      for event in pygame.event.get():

        if event.type == pygame.QUIT:
            pygame.quit()
            quit()
        if event.type == pygame.KEYDOWN:
            if event.key ==pygame.K_c:
                intro = False
            if event.key ==pygame.K_q:
                pygame.quit()
                quit()
        gameDisplay.fill(black)
        #Game Initial display message
        message_to_screen("Dodge It!",
                          red,
                          -200,
                          size="large")

        message_to_screen("Press 'C' to play the game or 'Q' to quit.",
                          white,
                          150,
                          size="small")
        pygame.display.update()
        clock.tick(15)

#Text Size
def text_objects(text,color, size):
    if size=="small":
        textSurface=smallfont.render(text, True ,color)
    elif size=="medium":
        textSurface=medfont.render(text, True ,color)
    elif size=="large":
        textSurface=largefont.render(text, True ,color)


    return textSurface,textSurface.get_rect()

#Message to screen
def message_to_screen(msg,color,y_displace=0,size="small"):
    textSurf,textRect=text_objects(msg,color,size)
    textRect.center = (display_width / 2),(display_height / 2)+y_displace
    gameDisplay.blit(textSurf,textRect)

#The Game run up
def runGame():
    #global x,y, x_change
    gameExit = False
    gameOver = False

    x=(display_width*0.45)    
    y=(display_height*0.48)  
    x_change =0

    #To count score
    thingCount=1
    dodged=0

    #Block Initial Size
    thing_startx = random.randrange(0,display_width)
    thing_starty = -600
    thing_speed = 7
    thing_width = 100
    thing_height = 100
    while not gameExit:

        while gameOver == True:
            #Game Over message

            gameDisplay.fill(white)
            message_to_screen("Game over",
                              red,
                              y_displace=-50,
                              size="large")
            message_to_screen("Press C to play again or Q to quit.",
                              red,
                              y_displace=50,
                              size="medium")
            pygame.display.update()

            for event in pygame.event.get():
                if event.type == pygame.KEYDOWN:
                    if event.key == pygame.K_q:
                        gameExit = True
                        gameOver = False
                    if event.key == pygame.K_c:
                        gameLoop()

        #Game Controls
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                gameExit = True
            if event.type == pygame.KEYDOWN:
                if event.key == pygame.K_LEFT:
                    x_change = -5
                elif event.key == pygame.K_RIGHT:
                    x_change = 5

            if event.type == pygame.KEYUP:
                if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT:
                    x_change=0

        x += x_change
        gameDisplay.fill(white)

        things(thing_startx,thing_starty,thing_width,thing_height,black)
        thing_starty+=thing_speed
        car(x,y)
        things_dodged(dodged)

        if x>display_width-car_width or x<0:
            gameOver = True

        #Check if block is in the screen
        if thing_starty >display_height:
            thing_stary = 0 - thing_height
            thing_startx= random.randrange(0,display_width)
            dodged += 1
            thing_speed += 1
            thing_width += (dodged * 1.2)

        #Check Collision with block  
        if y < thing_starty+thing_height:
            print('y crossover')

            if x > thing_startx and x < thing_startx + thing_width or x+car_width > thing_startx and x + car_width < thing_startx+thing_width:
                print('x crossover')
                gameOver = True

        pygame.display.update()

#The game run up
def gameLoop():
    clock.tick(FPS)
    runGame()
    pygame.quit()
    quit()

game_intro()
gameLoop()

是食物形象。
预先感谢大家，真的，感谢关注此错误。

Answer 1

您的变量名中有一个错字，应该是：

thing_starty

代替：

thing_stary