Tengo un juego de carrera en el que puedes mover y recoger monedas. Para cada moneda tengo una declaración if:

if cn1+25 < x and cn1 + 50 > x:
        cn1 = -1000
        if cn1 < -3:
            coincount += 1
            textObj = INVFONT.render(str(coincount+1), True, WHITE, BLACK)

Esta declaración if continúa sucediendo una y otra vez, agregando cientos de monedas a la variablecoincount. Más adelante en mi código, escribo en la pantalla el número de monedas en cuenta de monedas.

¿Hay alguna manera de asegurarse de que esto solo se ejecute una vez?

(Aquí está el resto de mi código, ut podría ser útil)

import pygame,sys,random
pygame.init()

width = 900
height = 300
screenDim = (width,height)
green=(0,255,0)
yellow=(255,255,0)
red=(255,0,0)
WHITE = (0,0,0)
BLACK = (255,255,255)
screen = pygame.display.set_mode(screenDim)

placePlatformX = 0
placePlatformY = 275
coin = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Desktop\\coin.png').convert_alpha()
coin = pygame.transform.scale(coin, (25,25))
background = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Desktop\\background.jpg').convert_alpha()
background = pygame.transform.scale(background, (width,height))
guy = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Desktop\\guy.png').convert_alpha()
guy = pygame.transform.rotate(guy,90)
cloud1 = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Downloads\\cloud.png').convert_alpha()
cloud1 = pygame.transform.scale(cloud1,(156,88))
cloud2 = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Downloads\\cloud.png').convert_alpha()
cloud2 = pygame.transform.scale(cloud1,(131,53))
cloud3 = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Downloads\\cloud.png').convert_alpha()
cloud3 = pygame.transform.scale(cloud1,(200,100))
cloud4 = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Downloads\\cloud.png').convert_alpha()
cloud4 = pygame.transform.scale(cloud1,(39,20))


bplatform = pygame.image.load('C:\\Users\\eliya_s1suf2x\\Desktop\\platform.jpg').convert_alpha()
coincount = 0    
x = 450
y = -20
block = 1000
cn1 = 100
cn2 = 100
cn3 = 100
cn4 = 100
cn5 = 100
cloudmove = 20

INVFONT = pygame.font.Font('C:\\Users\\eliya_s1suf2x\\Desktop\\MINECRAFT\\Raleway-ExtraBold.ttf', 18)
textObj = INVFONT.render(str(coincount), True, WHITE, BLACK)

def update():


    screen.blit(background,(0,0))

    screen.blit(textObj,(860,0))
    screen.blit(cloud1,(cloudmove,0))
    screen.blit(cloud2,(cloudmove+120,30))
    screen.blit(cloud3, (cloudmove+500,10))
    screen.blit(cloud4, (cloudmove + 340,20))

    screen.blit(bplatform,(placePlatformX,placePlatformY))
    screen.blit(bplatform,(placePlatformX+190,placePlatformY))
    screen.blit(bplatform,(placePlatformX+380,placePlatformY))
    screen.blit(bplatform,(placePlatformX+570,placePlatformY))
    screen.blit(bplatform,(placePlatformX+760,placePlatformY))
    screen.blit(bplatform,(placePlatformX+1760,placePlatformY+100))
    #block list update
    screen.blit(bplatform,(block-500,190))
    screen.blit(bplatform,(block,100))
    screen.blit(bplatform,(block+250,200))
    screen.blit(bplatform,(block+500,210))
    screen.blit(bplatform,(block+830,190))
    screen.blit(bplatform,(block+1000,140))

    screen.blit(coin,(cn1 + 40,245))
    screen.blit(coin,(cn2 + 80,245))
    screen.blit(coin,(cn3 + 120,245))
    screen.blit(coin,(cn4+ 160,245))
    screen.blit(coin,(cn5 + 200,245))
    screen.blit(coin,(830,0))
    screen.blit(guy,(x,y))

#pygame.sprite.spritecollide()




standOnBrick = 255   
speed = 2
gravity = 3
pygame.display.set_caption("Run")
finished = False
while finished == False:

    #processing all the events
    for event in pygame.event.get(): # event1, event2,..
        if event.type == pygame.QUIT:
            finished = True
            pygame.quit()
            sys.exit()

    if y < standOnBrick:
        y += gravity
        update()

        #where the block   #where the block
        #starts             #ends
    elif cn1+25 < x and cn1 + 50 > x:
        cn1 = -1000
        if cn1 < -3:
            coincount += 1
            textObj = INVFONT.render(str(coincount+1), True, WHITE, BLACK)

        #WORK ON THIS
    elif cn2 + 50 < x and cn2 + 100 > x:
        cn2 = -1025
        if cn2 < -3:
            coincount += 1
            print('coincount',coincount)
            textObj = INVFONT.render(str(coincount+1), True, WHITE, BLACK)
    elif cn3 + 75 < x and cn3 + 150 > x:
        cn3 = -1050
        if cn3 < -3:
            coincount += 1
            print('coincount',coincount)
            textObj = INVFONT.render(str(coincount+1), True, WHITE, BLACK)

    elif cn4 + 100 < x and cn2 + 200 > x:
        cn4 = -1000
        if cn4 < -3:
            coincount += 1
            print('coincount',coincount)
            textObj = INVFONT.render(str(coincount+1), True, WHITE, BLACK)

    elif cn5 + 125 < x and cn5 + 230 > x:
        cn5 = -1000
        if cn5 < -3:
            coincount += 1
            print('coincount',coincount)
            print('hello')
            textObj = INVFONT.render(str(coincount+1), True, WHITE, BLACK)

    elif block-525 < x and block-330 > x:
        #how high guy is
        standOnBrick = 167
    elif block-16 < x and block+180 > x:
        standOnBrick = 79
    elif block + 230 < x and block + 426 > x:
        standOnBrick = 179
    elif block + 480 < x and block + 480+196>x:
        standOnBrick = 189
    elif block + 810 < x and block + 1026 > x:
        standOnBrick = 169
    elif block + 980 < x and block +1176 > x:
        standOnBrick = 119

    else:
        standOnBrick = 255
    pressedKeys = pygame.key.get_pressed()
    if pressedKeys[pygame.K_LEFT] == 1:
        x -= speed
        print(x)
        update()



    elif pressedKeys[pygame.K_RIGHT] == 1:
        block -= 0.5
        cn1 -= 0.5
        cn2 -= 0.5
        cn3 -= 0.5
        cn4 -= 0.5
        cn5 -= 0.5
        cloudmove -= 0.2
        update()
        if x < 450:
            cloudmove += 0.25
            x+=speed
            cn1 += 0.5
            cn2 += 0.5
            cn3 += 0.5
            cn4 += 0.5
            cn5 += 0.5
            update()
            print(x)
            block += 0.5
    elif pressedKeys[pygame.K_UP] == 1:
        y -= 5


        print(y)
        update()

#bounderies

    if x < 2:
        x += 2.1

    pygame.display.flip()#Update method/load next frame

#pygame.quit()