[PyGame] Game doesn't work after pause

Owenix · (This post was last modified: Sep-19-2018, 04:27 PM by Owenix.)

Hi there, i'm new to python and just started Pygame this week, learning via working on a Pong project.
Long story short, i have the pong game working and i have a menu before that, all working as i want them.

I added a function that when pressing escape and the game is idle, the main loop will stop and the game menu will pop up again

Startin menu:

        
          
          
              
                       
def game_intro():
    intro = True
    bgm = pygame.mixer.music.load("bg.mp3")
    pygame.mixer.music.play(-1)
    while intro:
        for event in pygame.event.get():
            print(pygame.event.get())
 
            if event.type == pygame.QUIT:
                pygame.quit()
                quit
            if event.type == pygame.MOUSEBUTTONUP:
                pos = pygame.mouse.get_pos()
                if (pos[0] >= 200) and (pos[0] <= 283) and (pos[1] >= 387) and (pos[1] <= 438):
                    intro = False
                    run = True
                    game = True
                elif (pos[0] >=200) and (pos[0] <= 300) and (pos[1] >= 460) and (pos[1] <= 511):
                    pygame.quit()
                    quit
                       
        pygame.draw.rect(win, grey, (width/3, 387, 85, 50), 5)
        pygame.draw.rect(win, grey, (width/3, 461, 100, 50), 5)
        message_to_screen(font1,"Play",green,[width/3, 375])
        message_to_screen(font1,"Quit",red,[width/3, 450])
        pygame.display.update()    
        clock.tick(13)
        win.fill(black)
        line_rain()
        message_to_screen(font2,"Welcome to Pong 1.0!",orange,[width /4, height/10])
        message_to_screen(font3,"1VS1 Only",orange,[width /4, height/5])
        message_to_screen(font3,"Player 1: W -> UP , S -> Down",orange,[width /4, height/3])
        message_to_screen(font3,"Player 2: Key Up -> Up , Key Down -> Down",orange,[width /4, height - height/2])

            

        
      

Escape pressed:

        
              keys = pygame.key.get_pressed()
      if keys[pygame.K_ESCAPE] and round_start == 0:
              run = False
              intro = True
              game_intro()

Whole code:

        
          
          
              
              import pygame
import random
import time
import sys
pygame.init()
 
######### Sound ############
 
bgm = pygame.mixer.music.load("bg.mp3")
 
round_sound = 0
 
 
def sound_mix(x):
    if x == "hit":
        sfx8 = pygame.mixer.Sound("phaserUp" + str(random.randint(1, 7)) + ".ogg")
        pygame.mixer.Sound.play(sfx8)
 
    elif x == "score":
        sfx2 = pygame.mixer.Sound("score.ogg")
        pygame.mixer.Sound.play(sfx2)
        return;
 
    elif x == "start":
       sfx1 = pygame.mixer.Sound("fight" + str(random.randint(1, 4)) + ".ogg")
       pygame.mixer.Sound.play(sfx1)
       return;
        
    elif x == "end":
        sfx3 = pygame.mixer.Sound("end.ogg")
        pygame.mixer.Sound.play(sfx3)
        return;
 
######### Screen Vars #########
width = 600
height = 600
 
 
######## Colors ########
white = 255,255,255
red = 255,0,0
blue = 0,0,255
green = 0,255,0
yellow = 255,255,0
black = 0,0,0
grey = 128,128,128
orange = 255,231,60
 
 
 
######### Ping's Vars #########
H = 130
W = 25
Vel = 20
player1x = W
player1y = random.randint(H, height - H)
player2x = width - (W*2)
player2y = random.randint(H, height - H)
player1 = "Player 1"
player2 = "Player 2"
random_player = random.randint(1,2)
 
######### Pong's Vars #########
 
R = 6
T = 3
ballx = int(width/2)
bally = int(height/2)
ballv = 24
ballvy = random.randint(1,20 )
balldx = ballv
balldy = ballvy
round_start = 0
ballcolor = white
 
 
######## Window Start ##########
win = pygame.display.set_mode([width, height])
pygame.display.set_caption("Pong")
clock = pygame.time.Clock()
game = True
keys = pygame.key.get_pressed()
 
 
 
 
###### Graphics #########
 
backg = pygame.image.load("bg.jpg").convert()
bgx = 0
 
 
######### Score ###########
player1score = 0
player2score = 0
maxscore = 5
 
     
 
######### Ball-Placement ##########
 
def random_acc(x,y):
    if x == "x":
        if y == 1:
            random_user =  W + eval("player" + str(y) + x)
            balldx = ballv
        else:
            random_user = eval("player" + str(y) + x) - W
            balldx = -ballv
    else: random_user = int(H / 2) + eval("player" + str(y) + x)
    return random_user;
 
### Fonts
font1 = pygame.font.SysFont('Comic Sans MS', 45)
font2 = pygame.font.SysFont('Comic Sans MS', 35)
font3 = pygame.font.SysFont('Comic Sans MS', 20)
 
### Text function
 
def message_to_screen(font,msg,color,where):
    screen_text = font.render(msg, True, color)
    win.blit(screen_text, where)
    pygame.display.update()
 
 
### Rain function
     
def line_rain():
    gravity = 1
    rain_size = 2
    rain_number = 50
    rain_height = height
    rain_color = white
    rain_flake = []
 
    for q in range(rain_number):
        x = random.randrange(0,width)
        y = random.randrange(0,height)
        rain_flake.append([x,y])
 
    for i in rain_flake:
        i[1] += gravity
        rain_length = [i[0] + 1,i[1] + 1]
        pygame.draw.circle(win, rain_color, i, rain_size)
 
        if i[1] > rain_height:
            i[1] = random.randrange(-50,-5)
            i[0] = random.randrange(width)    
 
 
         
def game_intro():
    intro = True
    bgm = pygame.mixer.music.load("bg.mp3")
    pygame.mixer.music.play(-1)
    while intro:
        for event in pygame.event.get():
            print(pygame.event.get())
 
            if event.type == pygame.QUIT:
                pygame.quit()
                quit
            if event.type == pygame.MOUSEBUTTONUP:
                pos = pygame.mouse.get_pos()
                if (pos[0] >= 200) and (pos[0] <= 283) and (pos[1] >= 387) and (pos[1] <= 438):
                    intro = False
                    run = True
                    game = True
                elif (pos[0] >=200) and (pos[0] <= 300) and (pos[1] >= 460) and (pos[1] <= 511):
                    pygame.quit()
                    quit
                       
        pygame.draw.rect(win, grey, (width/3, 387, 85, 50), 5)
        pygame.draw.rect(win, grey, (width/3, 461, 100, 50), 5)
        message_to_screen(font1,"Play",green,[width/3, 375])
        message_to_screen(font1,"Quit",red,[width/3, 450])
        pygame.display.update()    
        clock.tick(13)
        win.fill(black)
        line_rain()
        message_to_screen(font2,"Welcome to Pong 1.0!",orange,[width /4, height/10])
        message_to_screen(font3,"1VS1 Only",orange,[width /4, height/5])
        message_to_screen(font3,"Player 1: W -> UP , S -> Down",orange,[width /4, height/3])
        message_to_screen(font3,"Player 2: Key Up -> Up , Key Down -> Down",orange,[width /4, height - height/2])
         
     
         
         
game_intro()        
         
run = True
 
class game_run():
    while run:
        bgm = pygame.mixer.music.load("bg.mp3")
        pygame.mixer.music.play(-1)
        if (game == True) and (round_start == 0):
            message_to_screen(font1,"Score      " + str(player1score) + " - " + str(player2score),orange,[width / 4, height / 10])
        pygame.time.delay(70)
        clock.tick(200)
        for event in pygame.event.get():
            print(pygame.event.get())
            if event.type == pygame.QUIT:
                run = False
 
        ### Pause menu (which is start menu) ###
             
               
        keys = pygame.key.get_pressed()
        if keys[pygame.K_ESCAPE] and round_start == 0:
                run = False
                intro = True
                game_intro()
 
 
        ### Player 1&2 Moving sequence ###    
        if (game == True):
 
             
 
            if keys[pygame.K_s] and player1y < (height - H):
                player1y += qdis(player1y, "down")
                round_start = 1
            if keys[pygame.K_w] and player1y > 1:
                player1y -= qdis(player1y, "up")
                round_start = 1
            if keys[pygame.K_DOWN] and player2y < (height - H):
                player2y += qdis(player2y, "down")
                round_start = 1
            if keys[pygame.K_UP] and player2y > 1:
                player2y -= qdis(player2y, "up")
                round_start = 1
 
             
        ### Ball Mechanics ###
 
 
        # Movment
        if round_start == 0:
            ballx =  random_acc("x",random_player)
            bally =  random_acc("y",random_player)
            ballcolor = white
            if (round_sound == 0):
                round_sound = 1
                sound_mix("start")
        if round_start == 1:
            ballx = ballx + int(balldx)
            bally = bally + int(balldy)
 
 
        #Collision
 
        player1max = player1x
        player1min = player1x + W + R
        player1m = player1y
        player1b = player1y + H
        player2max = player2x
        player2min = player2x - W - R
        player2m = player2y
        player2b = player2y + H
        center = H / 2
        ballvy = random.randint(1,20 )
         
        if (ballx >= player1max) and (ballx <= player1min) and (player1m <= bally) and (player1b >= bally) and round_start == 1:
            balldx = ballv
            ballcolor = red
            sound_mix("hit")
            if (bally <= player1m + center) and (bally >= player1m): balldy = - ballvy
            else: balldy = ballvy
             
        elif (ballx >= player2min) and (ballx <= player2max) and (player2m <= bally) and (player2b >= bally) and round_start == 1:
            balldx = - ballv
            ballcolor = green
            sound_mix("hit")
            if (bally <= player2m + center) and (bally >= player2m): balldy = - ballvy
            else: balldy = ballvy
 
        # Borders
 
         
        if ballx <= R:
            balldx = ballv
            player2score = player2score + 1
            random_player = 2
            sound_mix("score")
            round_start = 0
            round_sound = 0
        elif ballx >= width - R:
            balldx = - ballv
            player1score = player1score + 1
            random_player = 1
            sound_mix("score")                          
            round_start = 0
            round_sound = 0
        if bally <= R: balldy = ballv
        elif bally >= height - R: balldy = - ballv
 
        # Round End
 
 
             
 
                 
                
        # Background function
         
        rel_bgx = bgx % backg.get_rect().width
        win.blit(backg, (bgx,0))
        if rel_bgx < width:
            win.blit(backg, (rel_bgx, 0))
        bgx -= 1
 
        # Draw functions
         
        pygame.draw.rect(win, red, (player1x, player1y, W, H))
        pygame.draw.rect(win, green, (player2x, player2y, W, H))
        pygame.draw.circle(win, ballcolor, (ballx,bally), R, T)
        pygame.display.update()
 
                 
                          
        ## Boundaries function
        def qdis(x, y):
            movment = height - H
            if y == "down":
                if x < movment:
                    return Vel;
                else:
                    sum = int(movment) - int(x)
                    return sum;
            elif y == "up":
                if x > Vel:
                    return Vel;
                else:
                    return int(x);
         
 
pygame.quit

            

        
      

The problem is not with the main menu, as it is the returning to the game (pressing the button) after visiting the main menu the second time.

Hope someone cold help (and improvements on the code would be happily accepted as well :))

Edit:
worth mentioning no error is occuring, the screen is just frozen and keys won't work (thats on the IDLE, regular file just exists)

***metulburr*** · (This post was last modified: Sep-20-2018, 02:36 AM by metulburr.)

Its much more simple to use state machines to handle pause as well as only have one main game loop in your code. Classes would be nice too. With a pong game, the paddes should be classes, and the ball should be. Because of all that it makes it more work to find the issue. More work i dont want to do. I would suggest to read the pygame tutorials here on the forum. Your structure will eventually turn into spaghetti code the more you add.

**nilamo** · Sep-20-2018, 08:44 PM

(Sep-19-2018, 04:27 PM)Owenix Wrote:

1
2
3

if event.type == pygame.QUIT:
pygame.quit()
quit

> ctrl-f + "quit"
> 3 results found

If you don't call a function, it doesn't do anything. Why waste your time typing things that don't do anything?
Python isn't ruby, simply referring to a function isn't enough to call it. The parenthesis are not optional.

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[PyGame] Game doesn't work after pause

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