MCPI Addons

A Minecraft Pi Edition: Reborn mod to add more features to the API. Note: requires Reborn v2.4.8 or later.

Installing

First you will need to install the frontend from pip, to do that you can use pip3 install mcpi-addons. If you don't want to (or can't) compile the backend then you can grab the newest version from the releases page.

Compiling

Just run ./build.sh to create the binary and run mv libextrapi.so ~/.minecraft-pi/mods to install the mod, this is needed because MCPI doesn't support any of these extensions that this api adds, so a C++ mod is loaded to intercept CommandServer::parse.

How to use

Here is a simple "Hello World" example:

# Import the api
from mcpi_addons.minecraft import Minecraft
# Initialize the api (MCPI must be open and in a world at this time)
mc = Minecraft.create()
# Post to chat
mc.postToChat("Hello world!")

For a tutorial see the 'Using the API' section of stuffaboutcode.com.

What does it do?

It adds these:

• custom.log
• custom.log.debug (mc.logging.debug(msg)) Logs a message in debug mode.
• custom.log.info (mc.logging.info(msg)) Logs a message.
• custom.warn (mc.logging.warn(msg)) Logs a warning.
• custom.log.error (mc.logging.error(msg)) Logs an error.
• custom.inventory
• custom.inventory.getSlot (mc.inventory.getHeldItem()) Gets the id, auxiliary, and count of the current slot.
• custom.inventory.unsafeGive (mc.inventory.unsafeGive(id=-2, auxiliary=-2, count=-2)) give the player the item without safety checking (-2 means don't change)
• custom.inventory.give (mc.inventory.give(id=-2, auxiliary=-2, count=-2)) give the player the item without safety checking (-2 means don't change)
• custom.override
• custom.override.reset (mc.resetOverrides()) resets all tile and item overrides.
• custom.override (mc.override(before, after)) overrides the id before with the id of after.
• world.getBlocks
• world.getBlocks (mc.getBlocks(x, y, z, x2, y2, z2)) Gets a flat list of the blocks between (x, y, z) and (x2, y2, z2).
• world.getBlocks.3D (mc.getBlocks3D(x, y, z, x2, y2, z2)) Gets a 3D list of the blocks between (x, y, z) and (x2, y2, z2).
• custom.post
• custom.post.client (mc.postToClient(msg)) Posts the message to the chat client side.
• custom.post.noPrefix (mc.postWithoutPrefix(msg)) Posts the message without the username prefix.
• custom.key
• custom.key.press (mc.player.press(key)) Presses a key.
• custom.key.release (mc.player.release(key)) Releases a key.
• world.getPlayerId (mc.getPlayerEntityId(name)) Gets the id of a player from the name.
• custom.username
• custom.username (mc.player.getUsername()) Gets the local players username.
• custom.username.all (mc.getUsernames()) Gets a list of player usernames.
• custom.world
• custom.world.particle (mc.particle(x, y, z, particle)) Spawns the particle at (x,y,z).
• custom.world.dir (mc.world.dir()) Get the world folder.
• custom.world.name (mc.world.name()) Get the world name.
• custom.world.servername (mc.world.server_name()) Get the last joined server name.
• custom.player
• custom.player.getHealth (mc.player.getHealth()) Returns the players health.
• custom.player.setHealth (mc.player.setHealth(health)) Sets the players health.
• custom.player.closeGUI (mc.player.closeGUI()) Closes the current screen.
• custom.player.getGamemode (mc.player.getGamemode()) Returns the players gamemode.
• custom.entity
• custom.entity.spawn (mc.entity.spawn(id, x, y, z, health = -1, dir = (0, 0), data = 0)) spawns an entity of type id at x, y, z, with health health (or fuse/lifetime) pointing in dir direction with data data.
• custom.entity.setAge (mc.entity.setAge(id, age)) changes an entities age, if it has an age (only animals do). If the age is negative it will be a baby for abs(age) / 20 seconds.
• custom.entity.setSheepColor (mc.entity.setSheepColor(id, color)) sets a sheeps color to color
• custom.reborn
• custom.reborn.getFeature (mc.reborn.getFeature(feature: string) -> bool) Gets the status of a reborn feature
• custom.reborn.getVersion (mc.reborn.getVersion() -> string) Gets the reborn version
• events.chat
• events.chat.post (mc.events.pollChatPosts() -> [string]) return a list of messages shown in client side chat
• events.chat.size (mc.events.setChatSize(size = 64)) clears the chat list and resets the size
• entity.getAllEntities
• entity.getEntities I want to add more so please give me suggestions.

Todo list

I am going to add theses features someday, but they aren't here now. Feel free to create a PR that adds them or other features!

• player.setGamemode(gamemode: int) Sets the players gamemode.
• player.getOxygen() -> int Gets the player oxygen.
• player.setOxygen(oxygen: int) Sets the players oxygen.
• player.getInventory() -> int Gets the player inventory.
• player.setInventory(inventory: int) Sets the player inventory.
• entity.getArmor(id: int) -> int[4] Gets the players armor.
• entity.setArmor(helmet: int, chestplate: int, leggings: int, boots: int) Sets the players armor.
• camera.getCameraState() -> int Gets the camera state.
• camera.setCameraState(state: int) Sets the camera state.
• minecraft.getVersion() -> str 0.1.0 or 0.1.1, will be determined at compile time and will require Legacy support.
• world.seed() -> string Gets the worlds seed.

Known bugs

• Using the particle iconcrack with mc.particle crashes the game, but using an invalid particle name is fine.
• postToClient really doesn't like it when you use \n. When posted they might also post a lot of garbage to server side chat.

Extras

Raspberry Juice compatibility

One day all of these will be supported.

• getBlocks
• getPlayerEntityId
• events.pollChatPosts
• player/entity.getRotation
• player/entity.getPitch
• player/entity.getDirection

Particles

Particles are client side and only shown if the player is within 16 blocks. Here is a particle list I found at 0x107511 in minecraft-pi

• bubble (only works in water)
• crit
• flame
• lava
• smoke
• largesmoke
• reddust
• ironcrack (crashes the game)
• snowballpoof
• explode

Tiles/Items

A list of tiles can be found here and a list of items here.

Entities

A list of entities can be found here.

Changelog

• 1.2.5
• Added custom.world.servername to get the name of the server the client is connecting to
• 1.2.4
• Fix custom.world.name while the mod is running on a server
• 1.2.3, by Skjeggegubben
• Add custom.entity.setAge and custom.entity.setSheepColor
• 1.2.2
• Remove print() call left in by mistake
• Add entity.getEntities and entity.getAllEntities
• 1.2.1, by Red-exe-Engineer
• Update entity ids and Entity class on the python side
• Add the sheep class and item class
• 1.2.0, by Red-exe-Engineer
• Add reborn.getVersion, reborn.getFeature, events.chat.posts, and events.chat.size
• 1.1.1
• Add basic entity spawning.
• 1.1.0
• Fixed bug with causing args to be cut off at the first left parenthesis.
• Fixed bug in world.getBlocks and custom.getBlocks3D causing them to target the wrong position.
• Added tests.
• Improved docs.
• Many breaking API changes.
• Many internal changes.
• Added custom.player.getHealth, custom.player.setHealth, custom.player.closeGUI, and custom.player.getGamemode.
• 1.0.3
• Added world.getBlocks, custom.getBlocks3D.
• Improved custom.particle.
• Removed getOffset from minecraft.py.
• 1.0.2
• Added custom.overrideTile, custom.overrideItem, and custom.resetOverrides.
• 1.0.1
• Added functionality to world.getPlayerId.
• Added custom.getUsernames.
• 1.0.0
• Stopped getSlot from crashing the game with invalid ids.
• Added press, unpress, worldName, worldDir, particle, getOffset, and logging (debug, info, warn, err).
• Uploaded to pypi and github.
• Beta
• Added getSlot and give.
• Alpha
• Had getUsername, postWithoutPrefix, and postClient.

Screenshots

Here is a screenshot of using overrides and particles: Here is a screenshot of using entity spawning with arrows and direction: Here is a screenshot of using TNT entities and falling bedrock entities to make a cannon: