[PyGame] sound effect delay and program laggy

[metulburr]

This breaks the snake from getting larger but it is more of an illustration of using clock and time....not time delay more than anything else. Notice the FPS is at 60 and you can slow it down just be changing a single number. You can speed up the snake by reducing the delay, or slow it down by increasing the delay

import random
import pygame
pygame.init()
 
screenWidth=500
screenHeight=500
 
mainWindow=pygame.display.set_mode((screenWidth,screenHeight))
pygame.display.set_caption("Snake")
 
x=250
y=250
snakeSize=50
move="down"
length=0
path=[]
clock = pygame.time.Clock()
run=True

 
def frandxy():
    global posx
    global posy
    posx=snakeSize*(random.randint(0,screenWidth/snakeSize-1))
    posy=snakeSize*(random.randint(0,screenWidth/snakeSize-1))
    if (posx,posy) in path or x==posx and y==posy:
            frandxy()
         
def game():
    global run
    global x
    global y
    global move
    global length
    global path
    
    global clock
    timer = 0.0
    delay = 175
    
    while run:
         
        #pygame.time.delay(200)
         
        for event in pygame.event.get():
            if event.type==pygame.QUIT:
                closeGame()
 
        key=pygame.key.get_pressed()
        if key[pygame.K_UP] and move != "down":
            move="up"
        if key[pygame.K_DOWN] and move != "UP":
            move="down"
        if key[pygame.K_RIGHT] and move != "left":
            move="right"
        if key[pygame.K_LEFT] and move != "right":
            move="left"
 
        path.insert(0,(x,y))
        
        if pygame.time.get_ticks()-timer > delay:
            timer = pygame.time.get_ticks()
            #move snake
            if move=="down" and y<=screenHeight-snakeSize:
                y+=snakeSize
            if move=="down" and y>=screenHeight:
                y=0
            if move=="up" and y>=0:
                y-=snakeSize
            if move=="up" and y<0:
                y=screenHeight-snakeSize
            if move=="right" and x<=screenWidth-snakeSize:
                x+=snakeSize
            if move=="right" and x>=screenWidth:
                x=0
            if move=="left" and x>=0:
                x-=snakeSize
            if move=="left" and x<0:
                x=screenWidth-snakeSize

            if x==posx and y==posy:
                length+=1
                frandxy()
            if (x,y) in path:
                #loseGame()
                print("You lose. Your length was", length)
                pygame.quit()
                break
            if length>=100:
                print("You won! The snake filled up the whole screen!")
                pygame.quit()
                break

        mainWindow.fill((0,0,0))
        #draw snake
        if length>0:
            for i in range(length):
                pygame.draw.rect(mainWindow, (0,255,0),(path[i][0],path[i][1], snakeSize,snakeSize))
        pygame.draw.rect(mainWindow, (0,255,0),(x, y, snakeSize, snakeSize))
        #draw food
        pygame.draw.rect(mainWindow, (255,0,0),(posx,posy, snakeSize, snakeSize))
        if len(path)>length:
            path=path[:(length)]
        clock.tick(60)
        pygame.display.update()
frandxy()
game()

I dont have much time today other than that.