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Lesson 1

Goal

Teleport your character to a point you define in code.

New Concepts

Variables are basically nametags used to refer to something, and are set using a single equals sign.

x = 5

You can set numbers into variables to "remember" them for later use.

player_position = mc.player.getPos()

You can also save important information, such as a player's position, into variables.

Code

Open up script.py in a code editor. We'll be going through this file line-by-line to start with.

import mcpi.minecraft as minecraft

This first line imports the mcpi.minecraft library, making it available under the name 'minecraft'

#NOTE - replace "seanybob" below with your name
mc = minecraft.Minecraft.create(address="199.96.85.3", name="seanybob")
  • Anything prefixed by the '#' symbol is a comment for humans, and is ignored by the computer.
  • Here we see we are creating a connection to the minecraft server and storing it in a variable named "mc".
  • The server we are connecting to is located at IP address 127.0.0.1 and linking to the login name "seanybob".
  • As mentioned in the comment above it, you need to change "seanybob" to your minecraft name that you chose.
x = 10
y = 110
z = 12
  • Here we are creating 3 variables for later use.
  • In the variable named 'x', we are storing the number 10.
  • In the variable named 'y', we are storing the number 110.
  • In the variable named 'z', we are storing the number 12.
mc.player.setPos(x, y, z)
  • Using our connection to our minecraft server (we previously saved the connection to the mc variable)...
  • We will access our player object inside that minecraft server...
  • And then set our position in the minecraft server to the x/y/z coordinates indicated by the variables we just set earlier.

The variables in the call get replaced, essentially turning into the values we stored in them earlier:

mc.player.setPos(10, 110, 12)

Terminal

To execute the script, in your terminal cd to the directory the script is located:

cd ~/TeachCraft-Challenges

Then run the script like so:

python script.py

Each time you edit the code, you will need to re-run the script using the above command.

CHALLENGES

  • Modify the script to go to a different x/y/z location.
  • Figure out which of the three coordinates (x, y, or z) controls how high up you are in the air.