python - 如何为墙壁添加边界？

Question

我正在制作一款类似于《以撒的结合》的游戏。我想在屏幕周围放一些石头来阻挡玩家的移动。

制作岩石布局的地方:

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"              jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj                   ",
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]
rockxcoord = 0
rockycoord = 0
for row in level:
    for col in row:
        if col == "j":
            rock = rocks(rockxcoord, rockycoord)
            rockGroup.add(rock)
        rockxcoord +=32
    rockycoord += 50
    rockxcoord = 0

边界在哪里设置

    for rock in rockGroup:
        screen.blit(rock.image, [rock.rect.x, rock.rect.y])
        rockCollisionList = pygame.sprite.spritecollide(playerOne, rockGroup, False)
        for rock in rockCollisionList:
            if playerOne.rect.x < rock.rect.x:
                playerOne.rect.x = rock.rect.x - 90
            if playerOne.rect.x > rock.rect.x:
                playerOne.rect.x = rock.rect.x + 80

我已经成功地在 x 轴上添加了边界。但是，当对 y 轴执行相同操作时，它无法正常工作。

Answer 1

使用PyGame's Sprites .有一个 good tutorial在他们身上。最初需要做更多的工作，但以后会节省时间。真的，花时间学习它。这是值得的投资。

你的墙可以很简单:

class WallSprite( pygame.sprite.Sprite ):
    """ A stationay sprite"""
    def __init__( self, position, image ):
        pygame.sprite.Sprite.__init__( self )
        self.image        = image
        self.rect         = self.image.get_rect()
        self.rect.topleft = position 

    def udpate( self ):
        # does not move
        pass

创建一堆墙。显然，将 10 x 1 单位的墙作为单个 Sprite 制作更有效，但为了举例，我们将制作乐高™ 风格的墙。

# Create 20 randomly-placed walls
wall_image = pygame.image.load("brick_32.png").convert_alpha()
wall_sprites = pygame.sprite.Group()   # a group for all the wall sprites
for i in range(20):
    # create a wall at a random position
    new_wall = WallSprite( ( random.randrange( 0, WINDOW_WIDTH ), random.randrange( 0, WINDOW_HEIGHT ) ), wall_image )
    wall_sprites.add( new_wall )  # put into the sprite group

brick_32.png

在您的主循环中， Sprite 组可用于绘制 Sprite 和组碰撞函数以查看您的玩家是否撞到了任何墙。

# Main loop
done = False
while not done:

    # Handle user-input
    for event in pygame.event.get():
        if ( event.type == pygame.QUIT ):
            done = True
        # handle direction keys ...

    # move / update the player sprite
    player_sprite.update()

    # handle player <-> wall sprite collisions (for *ALL* walls)
    if ( len( pygame.sprite.spritecollide( player_sprite, wall_sprites, False ) ) > 0 ):
        player_sprite.stop_moving()

    # re-paint the window
    screen.fill( GREEN )
    wall_sprites.draw()   # paints the entire sprite group
    player_sprite.draw()  # paint the player
    pygame.display.flip()

pygame.quit()