Question

我正在做一个控制蛇的游戏，当他死后游戏退出。我已经尝试添加一个不同的功能（on）所以只有在启用时才会继续游戏。但是，这里没有重新启动的是我的代码，有人可以放入重启功能吗？

import pygame, sys, time, random
from pygame.locals import *

pygame.init()

fpsClock = pygame.time.Clock()

playSurface = pygame.display.set_mode((640, 480))
pygame.display.set_caption('Happy Birthday Mum')

redColour = pygame.Color(255, 0, 0)
blackColour = pygame.Color(0, 0, 0)
whiteColour = pygame.Color(255, 255, 255)
greyColour = pygame.Color(150, 150, 150)
snakePosition = [100,100]
snakeSegments = [[100,100],[80,100],[60,100]]
raspberryPosition = [300,300]
raspberrySpawned = 1
direction = 'right'
changeDirection = direction
diff = 30

def gameOver():
    gameOverFont = pygame.font.Font('freesansbold.ttf', 72)
    gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
    gameOverRect = gameOverSurf.get_rect()
    gameOverRect.midtop = (320, 10)
    playSurface.blit(gameOverSurf, gameOverRect)
    pygame.display.flip()
    time.sleep(5)
    pygame.quit()
    sys.exit()

while True:
    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
        elif event.type == KEYDOWN:
            if event.key == K_RIGHT or event.key == ord('d'):
                changeDirection = 'right'
            if event.key == K_LEFT or event.key == ord('a'):
                changeDirection = 'left'
            if event.key == K_UP or event.key == ord('w'):
                changeDirection = 'up'
            if event.key == K_DOWN or event.key == ord('s'):
                changeDirection = 'down'
            if event.key == K_ESCAPE:
                pygame.event.post(pygame.event.Event(QUIT))
            if event.key == K_1:
                diff = 10
            if event.key == K_2:
                diff = 20
            if event.key == K_3:
                diff = 30
            if event.key == K_4:
                diff = 40
            if event.key == K_5:
                diff = 50
            if event.key == K_r:
                restart()

    if changeDirection == 'right' and not direction == 'left':
        direction = changeDirection
    if changeDirection == 'left' and not direction == 'right':
        direction = changeDirection
    if changeDirection == 'up' and not direction == 'down':
        direction = changeDirection
    if changeDirection == 'down' and not direction == 'up':
        direction = changeDirection
    if direction == 'right':
        snakePosition[0] += 20
    if direction == 'left':
        snakePosition[0] -= 20
    if direction == 'up':
        snakePosition[1] -= 20
    if direction == 'down':
        snakePosition[1] += 20
    snakeSegments.insert(0,list(snakePosition))
    if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:
        raspberrySpawned = 0
    else:
        snakeSegments.pop()
    if raspberrySpawned == 0:
        x = random.randrange(1,32)
        y = random.randrange(1,24)
        raspberryPosition = [int(x*20),int(y*20)]
    raspberrySpawned = 1
    playSurface.fill(blackColour)
    for position in snakeSegments:
        pygame.draw.rect(playSurface,whiteColour,Rect(position[0], position[1], 20, 20))
    pygame.draw.rect(playSurface,redColour,Rect(raspberryPosition[0], raspberryPosition[1], 20, 20))
    pygame.display.flip()
    if snakePosition[0] > 620 or snakePosition[0] < 0:
        gameOver()
    if snakePosition[1] > 460 or snakePosition[1] < 0:
        gameOver()
    for snakeBody in snakeSegments[1:]:
        if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]:
            gameOver()
    fpsClock.tick(diff)

Answer 1

你需要像对待最终游戏一样将游戏变成一个功能。然后在你的游戏结束循环而不是退出只是再次调用playGame。确保在while之前的循环开始时将所有变量重置为原始状态。像这样:(伪代码）

import pygame, sys, time, random
from pygame.locals import *

pygame.init()

fpsClock = pygame.time.Clock()

playSurface = pygame.display.set_mode((640, 480))
pygame.display.set_caption('Happy Birthday Mum')

redColour = pygame.Color(255, 0, 0)
blackColour = pygame.Color(0, 0, 0)
whiteColour = pygame.Color(255, 255, 255)
greyColour = pygame.Color(150, 150, 150)
snakePosition = [100,100]
snakeSegments = [[100,100],[80,100],[60,100]]
raspberryPosition = [300,300]
raspberrySpawned = 1
direction = 'right'
changeDirection = direction
diff = 30

def gameOver():
    gameOverFont = pygame.font.Font('freesansbold.ttf', 72)
    gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
    gameOverRect = gameOverSurf.get_rect()
    gameOverRect.midtop = (320, 10)
    playSurface.blit(gameOverSurf, gameOverRect)
    pygame.display.flip()
    time.sleep(5)
    playGame();

def playGame():

    RESET ALL GAME VARIABLES HERE

    while True:
        for event in pygame.event.get():
            if event.type == QUIT:
                pygame.quit()
            elif event.type == KEYDOWN:
                if event.key == K_RIGHT or event.key == ord('d'):
                    changeDirection = 'right'
                if event.key == K_LEFT or event.key == ord('a'):
                    changeDirection = 'left'
                if event.key == K_UP or event.key == ord('w'):
                    changeDirection = 'up'
                if event.key == K_DOWN or event.key == ord('s'):
                    changeDirection = 'down'
                if event.key == K_ESCAPE:
                    pygame.event.post(pygame.event.Event(QUIT))
                if event.key == K_1:
                    diff = 10
                if event.key == K_2:
                    diff = 20
                if event.key == K_3:
                    diff = 30
                if event.key == K_4:
                    diff = 40
                if event.key == K_5:
                    diff = 50
                if event.key == K_r:
                    restart()

        if changeDirection == 'right' and not direction == 'left':
            direction = changeDirection
        if changeDirection == 'left' and not direction == 'right':
            direction = changeDirection
        if changeDirection == 'up' and not direction == 'down':
            direction = changeDirection
        if changeDirection == 'down' and not direction == 'up':
            direction = changeDirection
        if direction == 'right':
            snakePosition[0] += 20
        if direction == 'left':
            snakePosition[0] -= 20
        if direction == 'up':
            snakePosition[1] -= 20
        if direction == 'down':
            snakePosition[1] += 20
        snakeSegments.insert(0,list(snakePosition))
        if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:
            raspberrySpawned = 0
        else:
            snakeSegments.pop()
        if raspberrySpawned == 0:
            x = random.randrange(1,32)
            y = random.randrange(1,24)
            raspberryPosition = [int(x*20),int(y*20)]
        raspberrySpawned = 1
        playSurface.fill(blackColour)
        for position in snakeSegments:
            pygame.draw.rect(playSurface,whiteColour,Rect(position[0], position[1], 20, 20))
        pygame.draw.rect(playSurface,redColour,Rect(raspberryPosition[0], raspberryPosition[1], 20, 20))
        pygame.display.flip()
        if snakePosition[0] > 620 or snakePosition[0] < 0:
            gameOver()
        if snakePosition[1] > 460 or snakePosition[1] < 0:
            gameOver()
        for snakeBody in snakeSegments[1:]:
            if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]:
                gameOver()
        fpsClock.tick(diff)


playGame();

Answer 2

你基本上想要两个while循环 - 一个用于整个游戏运行时，一个较小一个用于蛇活着。

start pygame and set global variables;
while the program is running:
    set all of the initial variables for the game (snake position, etc)
    while the snake is alive:
        handle input;
        check to see if the snake is dead;

我已经采用你的python代码并以这种方式构建它。注意我将变量snake_is_alive设置为false的位置。看看它如何使内循环结束，但让外循环重新开始。

import pygame, sys, time, random
from pygame.locals import *

pygame.init()

fpsClock = pygame.time.Clock()

playSurface = pygame.display.set_mode((640, 480))
pygame.display.set_caption('Happy Birthday Mum')
redColour = pygame.Color(255, 0, 0)
blackColour = pygame.Color(0, 0, 0)
whiteColour = pygame.Color(255, 255, 255)
greyColour = pygame.Color(150, 150, 150)

game_is_running = True
while game_is_running:
        snakePosition = [100,100]
        snakeSegments = [[100,100],[80,100],[60,100]]
        raspberryPosition = [300,300]
        raspberrySpawned = 1
        direction = 'right'
        changeDirection = direction
        diff = 30

        snake_is_alive = True
        while snake_is_alive:
            for event in pygame.event.get():
                if event.type == QUIT:
                    pygame.quit()
                elif event.type == KEYDOWN:
                    if event.key == K_RIGHT or event.key == ord('d'):
                        changeDirection = 'right'
                    if event.key == K_LEFT or event.key == ord('a'):
                        changeDirection = 'left'
                    if event.key == K_UP or event.key == ord('w'):
                        changeDirection = 'up'
                    if event.key == K_DOWN or event.key == ord('s'):
                        changeDirection = 'down'
                    if event.key == K_ESCAPE:
                        pygame.event.post(pygame.event.Event(QUIT))
                    if event.key == K_1:
                        diff = 10
                    if event.key == K_2:
                        diff = 20
                    if event.key == K_3:
                        diff = 30
                    if event.key == K_4:
                        diff = 40
                    if event.key == K_5:
                        diff = 50
                    if event.key == K_r:
                        snake_is_alive = False

            if changeDirection == 'right' and not direction == 'left':
                direction = changeDirection
            if changeDirection == 'left' and not direction == 'right':
                direction = changeDirection
            if changeDirection == 'up' and not direction == 'down':
                direction = changeDirection
            if changeDirection == 'down' and not direction == 'up':
                direction = changeDirection
            if direction == 'right':
                snakePosition[0] += 20
            if direction == 'left':
                snakePosition[0] -= 20
            if direction == 'up':
                snakePosition[1] -= 20
            if direction == 'down':
                snakePosition[1] += 20
            snakeSegments.insert(0,list(snakePosition))
            if snakePosition[0] == raspberryPosition[0] and snakePosition[1] == raspberryPosition[1]:
                raspberrySpawned = 0
            else:
                snakeSegments.pop()
            if raspberrySpawned == 0:
                x = random.randrange(1,32)
                y = random.randrange(1,24)
                raspberryPosition = [int(x*20),int(y*20)]
            raspberrySpawned = 1
            playSurface.fill(blackColour)
            for position in snakeSegments:
                pygame.draw.rect(playSurface,whiteColour,Rect(position[0], position[1], 20, 20))
            pygame.draw.rect(playSurface,redColour,Rect(raspberryPosition[0], raspberryPosition[1], 20, 20))
            pygame.display.flip()
            if snakePosition[0] > 620 or snakePosition[0] < 0:
                snake_is_alive = False
            if snakePosition[1] > 460 or snakePosition[1] < 0:
                snake_is_alive = False
            for snakeBody in snakeSegments[1:]:
                if snakePosition[0] == snakeBody[0] and snakePosition[1] == snakeBody[1]:
                    snake_is_alive = False
            fpsClock.tick(diff)


        gameOverFont = pygame.font.Font('freesansbold.ttf', 72)
        gameOverSurf = gameOverFont.render('Game Over', True, greyColour)
        gameOverRect = gameOverSurf.get_rect()
        gameOverRect.midtop = (320, 10)
        playSurface.blit(gameOverSurf, gameOverRect)
        pygame.display.flip()
        time.sleep(5)

我摆脱了使其更容易阅读的功能，但即使你创建了函数，整体结构（内部循环和外部循环）应该保持不变。

Pygame重启功能

2 个答案: