Minecraft_Map Sense Hat

[Woll]

I'm playing around with the Sense Hat and following the Minecraft Map trutorial on the Raspberry Pi Resources section. However, I can't get the program to work as I keep getting the following error messages.

>>>
Traceback (most recent call last):
File "/home/pi/minecraft-map/Minecraft-map Download.py", line 6, in <module>
mc = Minecraft.create()
File "/usr/lib/python3/dist-packages/mcpi/minecraft.py", line 171, in create
return Minecraft(Connection(address, port))
File "/usr/lib/python3/dist-packages/mcpi/connection.py", line 17, in __init__
self.socket.connect((address, port))
ConnectionRefusedError: [Errno 111] Connection refused
>>>

I started out typing the code as I want to learn coding and I got the error message. So I copied and pasted it from the Resources page, just to make sure I wasn't tpying anything wrong and I still get the same message.

I'm using the Pi 2B and the Raspbian Jessie OS if that's any help.

The full coded from the Resources page is written below.

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from sense_hat import SenseHat
from mcpi.minecraft import Minecraft
from time import sleep

sense = SenseHat()
mc = Minecraft.create()

known_blocks = {}

def get_blocks():
    global known_blocks

    x, y, z = mc.player.getTilePos()
    y -= 1

    blocks = []
    for dz in range(z-3, z+5):
        for dx in range(x-3, x+5):
            b = (dx, y, dz)
            if b in known_blocks:
                block = known_blocks[b]
            else:
                block = mc.getBlock(dx, y, dz)
                known_blocks[b] = block
            blocks.append(block)

    return blocks

def lookup_colour(block):
    if block in colours:
        return colours[block]
    else:
        return white

def map_blocks_to_colours(blocks):
    return [lookup_colour(block) for block in blocks]

# blocks
air = 0
grass = 2
water = 9
sand = 12

# colours
white = (150, 150, 150)
green = (0, 150, 0)
blue = (0, 0, 150)
yellow = (150, 150, 0)
black = (0, 0, 0)

# block: colour
colours = {
    air: white,
    grass: green,
    water: blue,
    sand: yellow,
}

player_pos = 27

while True:
    blocks = get_blocks()
    pixels = map_blocks_to_colours(blocks)
    pixels[player_pos] = black  # denote player as black pixel
    sense.set_pixels(pixels)

[DougieLawson]

Do you have

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auto lo
iface lo inet loopback

in your /etc/network/interfaces file

[Woll]

Do you have

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auto lo
iface lo inet loopback

in your /etc/network/interfaces file

Thanks for the reply. I'm not sure. I'm using Raspbian Jessie so I thought everything was up to date. How would I add the above, using Terminal? I'm doing the command line course on
https://www.codecademy.com/courses/lear ... mmand-line
so hopefully I'll be able to add it. Which directory would I access /etc/network/interfaces from?

[DougieLawson]

OK so what ports are in use? Is there something listening on port 4711 (that isn't Minecraft)?

sudo netstat -tlnp
should show you.

[Woll]

Thanks for the reply. This is what shows after doing sudo netstat -tlnp
I don't know what they are thou.

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Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      551/sshd        
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      668/cupsd       
tcp6       0      0 :::22                   :::*                    LISTEN      551/sshd        
tcp6       0      0 ::1:631                 :::*                    LISTEN      668/cupsd   

[DougieLawson]

Those are all normal, so your error is something else.

[Woll]

I saw this in another thread

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sudo apt-get install libjpeg-dev
sudo pip-3.2 install pillow

But when I do the pillow, I get this.

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$ sudo pip-3.2 install pillow
Requirement already satisfied (use --upgrade to upgrade): pillow in /usr/lib/python3/dist-packages
Cleaning up...

I've done a sudo apt-get upgrade today and I'm running Jessie. I would have thought everything would be working fine?