CODEWITHSUNDEEP
pythonpygamerestart
user1891709
user1891709

Reputation: 11

How to create a "play again" option with Pygame

I am new to programming with Python. I have been working through a tutorial book that I found, and got the game up and running, but then decided I wanted to have a "Play Again?" option at the end. I can get the game to quit out with a press of the "n" key, but cannot work out how to get the game to restart.

Here is the code I think is giving the trouble:

#player reaches treasure
if player_rectangle.colliderect(treasure_rectangle):

#display text
    screen.blit(text,(screen_width/2-195,screen_height/2-25))
    if event.type==pygame.KEYDOWN:
        if event.key==pygame.K_n:
            exit()

    elif event.key==pygame.K_y:


pygame.display.update()

I know something needs to go after the elif event, and I have tried all that I can think of. I tried to define the whole program, and call it but that stopped the whole thing running. I have looked around internet sites, but just cannot seem to come up with a answer.

Can some one help out in easy terms how to get the game to restart to the starting position when the y key is pressed? I know it has something to do with a loop, I just cannot place my finger on what.

Many thanks.

Upvotes: 1

Views: 8582

Answers (2)

Blckknght
Blckknght

Reputation: 104712

It's not entirely clear how your code is organized, so I'll be very general. Usually games are implemented with a "main loop" that handles all of the action. In "pseudo"-python:

def main_loop():
    while True:
        handle_next_action()
        draw_screen()

        if game_is_over():
            break

Before you start the loop, you usually do some setup to get the game state how you want it:

def main():
    setup()

    main_loop()

    shut_down()

Given those parts, you can reset the game by having the main loop code call setup again (it may need to be specifically designed to be runable more than once):

def main_loop():
    while True:
        handle_events()
        draw_screen()

        if game_is_over():
            if play_again():   # new code here!
                setup()
            else:
                break

You might want to split the setup code into two parts, one which only needs to be run when the program begins (to read configuration files and set up things like the window system), and a second that gets repeated for each new game (setting up the game's state).

Upvotes: 2

jofel
jofel

Reputation: 3405

To restart a game you normally need to reset all variables to their initial value (e.g. number of lives, score, initial position, ...).

The best way is to put all initialisations inside a procedure:

def init():
    global score,lives     # use these global variables
    score=0
    lives=3

init()    # call init() to define and reset all values

while 1: # main loop
       ...
       elif event.key==pygame.K_y:
            init()            # restart the game

Upvotes: 0

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