Here is a very cool script again by the amazing author Martin O’Hanlon, you can right click block and have it explode like TNT in Minecraft.
Here is the code:
</pre>
#www.stuffaboutcode.com
#Raspberry Pi, Minecraft Bombs - Turn any block into a bomb!
#import the minecraft.py module from the minecraft directory
import minecraft.minecraft as minecraft
#import minecraft block module
import minecraft.block as block
#import time, so delays can be used
import time
#import threading, so threads can be used
import threading
class ExplodingBlock(threading.Thread):
def __init__(self, pos, fuseInSecs, blastRadius):
#Setup object
threading.Thread.__init__(self)
self.pos = pos
self.fuseInSecs = fuseInSecs
self.blastRadius = blastRadius
def run(self):
#Open connect to minecraft
mc = minecraft.Minecraft.create()
#Get values
pos = self.pos
blastRadius = self.blastRadius
#Explode the block!
# get block type
blockType = mc.getBlock(pos.x, pos.y, pos.z)
# flash the block
for fuse in range(0, self.fuseInSecs):
mc.setBlock(pos.x, pos.y, pos.z, block.AIR)
time.sleep(0.5)
mc.setBlock(pos.x, pos.y, pos.z, blockType)
time.sleep(0.5)
# create sphere of air
for x in range(blastRadius*-1,blastRadius):
for y in range(blastRadius*-1, blastRadius):
for z in range(blastRadius*-1,blastRadius):
if x**2 + y**2 + z**2 < blastRadius**2:
mc.setBlock(pos.x + x, pos.y + y, pos.z + z, block.AIR)
if __name__ == "__main__":
time.sleep(5)
#Connect to minecraft by creating the minecraft object
# - minecraft needs to be running and in a game
mc = minecraft.Minecraft.create()
#Post a message to the minecraft chat window
mc.postToChat("Minecraft Bombs, Hit (Right Click) a Block, www.stuffaboutcode.com")
#loop until Ctrl C
try:
while True:
#Get the block hit events
blockHits = mc.events.pollBlockHits()
# if a block has been hit
if blockHits:
# for each block that has been hit
for blockHit in blockHits:
#Create and run the exploding block class in its own thread
# pass the position of the block, fuse time in seconds and blast radius
# threads are used so multiple exploding blocks can be created
explodingBlock = ExplodingBlock(blockHit.pos, 3, 3)
explodingBlock.daemon
explodingBlock.start()
time.sleep(0.1)
except KeyboardInterrupt:
print("stopped")
<pre>
Hey back, I would like to show you guys a new script i found out there it allows you to play the classic game Snake by Martin O’Hanlon.
Here is a video i found on the page
Code:
</pre>
#www.stuffaboutcode.com
#Raspberry Pi, Minecraft Snake
#import the minecraft.py module from the minecraft directory
import minecraft.minecraft as minecraft
#import minecraft block module
import minecraft.block as block
#import time, so delays can be used
import time
#import random module to create random number
import random
#snake class which controls the whole game
class Snake:
def __init__(self, mc, startVec3, playingBottomLeft, playingTopRight):
self.mc = mc
self.direction = "up"
self.lenght = 5
self.tail = []
self.tail.insert(0, startVec3)
self.playingBottomLeft = playingBottomLeft
self.playingTopRight = playingTopRight
self.createApple()
self.score = 0
#draw's the whole snake
def draw(self):
for segment in self.tail:
self.mc.setBlock(segment.x, segment.y, segment.z, block.DIAMOND_BLOCK)
#add's one segment to the snake
def addSegment(self, segment):
self.mc.setBlock(segment.x, segment.y, segment.z, block.DIAMOND_BLOCK)
self.tail.insert(0, segment)
#do I need to clear the last segment
if (len(self.tail) > self.lenght):
lastSegment = self.tail[len(self.tail)-1]
self.mc.setBlock(lastSegment.x, lastSegment.y, lastSegment.z, block.AIR)
#pop the last segment off the tail
self.tail.pop()
#moves the snake, if it cant it returns false (i.e. game over)
def move(self):
newSegment = minecraft.Vec3(self.tail[0].x, self.tail[0].y, self.tail[0].z)
if self.direction == "up":
newSegment.y = newSegment.y + 1
elif self.direction == "down":
newSegment.y = newSegment.y - 1
elif self.direction == "left":
newSegment.x = newSegment.x - 1
elif self.direction == "right":
newSegment.x = newSegment.x + 1
if (self.checkCollision(newSegment) == False):
self.addSegment(newSegment)
#have I eaten the apple?
if (matchVec3(newSegment, self.apple) == True):
#increase my lenght
self.lenght = self.lenght + 2
#increase my score
self.score = self.score + 10
#create a new apple
self.createApple()
return True
else:
#game over
#flash snake head
mc.setBlock(self.tail[0].x, self.tail[0].y, self.tail[0].z, block.AIR)
time.sleep(0.3)
mc.setBlock(self.tail[0].x, self.tail[0].y, self.tail[0].z, block.DIAMOND_BLOCK)
time.sleep(0.3)
mc.setBlock(self.tail[0].x, self.tail[0].y, self.tail[0].z, block.AIR)
time.sleep(0.3)
mc.setBlock(self.tail[0].x, self.tail[0].y, self.tail[0].z, block.DIAMOND_BLOCK)
time.sleep(0.3)
#show score
mc.postToChat("Game over - score = " + str(self.score))
time.sleep(5)
mc.postToChat("www.stuffaboutcode.com")
return False
#function to check if a new segment (or apple) can go there
def checkCollision(self, newSegment):
#am I going the boundary
if ((newSegment.x == playingBottomLeft.x) or (newSegment.y == playingBottomLeft.y) or (newSegment.x == playingTopRight.x) or (newSegment.y == playingTopRight.y)):
return True
else:
#or my own tail
hitTail = False
for segment in self.tail:
if (matchVec3(segment, newSegment) == True):
hitTail = True
return hitTail
#function to change the snake's direction
def changeDirection(self, newDirection):
#code to make sure user doesnt try and make the snake move back on itself
if (newDirection == "up"):
if (self.direction != "down"): self.direction = newDirection
elif (newDirection == "down"):
if (self.direction != "up"): self.direction = newDirection
elif (newDirection == "left"):
if (self.direction != "right"): self.direction = newDirection
elif (newDirection == "right"):
if (self.direction != "left"): self.direction = newDirection
#create the apple at a random position on the board
def createApple(self):
badApple = True
#loop until an apple is created which doesnt collide with the boundary or the snake
while (badApple == True):
x = random.randrange(playingBottomLeft.x, playingTopRight.x)
y = random.randrange(playingBottomLeft.y, playingTopRight.y)
z = playingBottomLeft.z
newApple = minecraft.Vec3(x, y, z)
badApple = self.checkCollision(newApple)
self.apple = newApple
self.mc.setBlock(self.apple.x, self.apple.y, self.apple.z, block.GLOWING_OBSIDIAN)
#Compares vec3 objects, if they are the same returns true
def matchVec3(vec1, vec2):
if ((vec1.x == vec2.x) and (vec1.y == vec2.y) and (vec1.z == vec2.z)):
return True
else:
return False
#draws a vertical outline
def drawVerticalOutline(mc, x0, y0, x1, y1, z, blockType, blockData=0):
mc.setBlocks(x0, y0, z, x0, y1, z, blockType, blockData)
mc.setBlocks(x0, y1, z, x1, y1, z, blockType, blockData)
mc.setBlocks(x1, y1, z, x1, y0, z, blockType, blockData)
mc.setBlocks(x1, y0, z, x0, y0, z, blockType, blockData)
#main program
if __name__ == "__main__":
#constants
screenBottomLeft = minecraft.Vec3(-10,4,15)
screenTopRight = minecraft.Vec3(10,24,15)
playingBottomLeft = minecraft.Vec3(-10, 4, 14)
playingTopRight = minecraft.Vec3(10, 24, 14)
snakeStart = minecraft.Vec3(0, 5, 14)
upControl = minecraft.Vec3(0, -1, 1)
downControl = minecraft.Vec3(0, -1, -1)
leftControl = minecraft.Vec3(-1, -1, 0)
rightControl = minecraft.Vec3(1, -1, 0)
middleControl = minecraft.Vec3(0, 0, 0)
#Connect to minecraft by creating the minecraft object
# - minecraft needs to be running and in a game
mc = minecraft.Minecraft.create()
#Post a message to the minecraft chat window
mc.postToChat("Hi, Minecraft Snake, www.stuffaboutcode.com")
#Build game board
# clear a suitably large area
mc.setBlocks(-10, 0, -5, 10, 25, 16, block.AIR)
# create playing board
mc.setBlocks(screenBottomLeft.x, screenBottomLeft.y, screenBottomLeft.z, screenTopRight.x, screenTopRight.y, screenTopRight.z, block.STONE)
drawVerticalOutline(mc, playingBottomLeft.x, playingBottomLeft.y, playingTopRight.x, playingTopRight.y, playingTopRight.z, block.OBSIDIAN)
# create control buttons
mc.setBlock(upControl.x, upControl.y, upControl.z, block.DIAMOND_BLOCK)
mc.setBlock(downControl.x, downControl.y, downControl.z, block.DIAMOND_BLOCK)
mc.setBlock(leftControl.x, leftControl.y, leftControl.z, block.DIAMOND_BLOCK)
mc.setBlock(rightControl.x, rightControl.y, rightControl.z, block.DIAMOND_BLOCK)
# blocks around control buttons, to stop player moving off buttons
mc.setBlock(middleControl.x + 2,middleControl.y + 1,middleControl.z, block.GLASS)
mc.setBlock(middleControl.x - 2,middleControl.y + 1,middleControl.z, block.GLASS)
mc.setBlock(middleControl.x,middleControl.y + 1,middleControl.z + 2, block.GLASS)
mc.setBlock(middleControl.x,middleControl.y + 1,middleControl.z - 2, block.GLASS)
mc.setBlock(middleControl.x - 1,middleControl.y + 1,middleControl.z - 1, block.GLASS)
mc.setBlock(middleControl.x - 1,middleControl.y + 1,middleControl.z + 1, block.GLASS)
mc.setBlock(middleControl.x + 1,middleControl.y + 1,middleControl.z + 1, block.GLASS)
mc.setBlock(middleControl.x + 1,middleControl.y + 1,middleControl.z - 1, block.GLASS)
mc.setBlock(middleControl.x,middleControl.y - 1,middleControl.z, block.STONE)
# put player in the middle of the control
mc.player.setPos(middleControl.x + 0.5,middleControl.y,middleControl.z + 0,5)
#time for minecraft to catchup
time.sleep(3)
mc.postToChat("Walk forward, backward, left, right to control the snake")
time.sleep(3)
#create snake
snake = Snake(mc, snakeStart, playingBottomLeft, playingTopRight)
snake.draw()
playing = True
try:
#loop until game over
while playing == True:
#sleep otherwise the snake moves WAY too fast
time.sleep(0.3)
#get players position - are they on a control tile, if so change snake's direction
playerTilePos = mc.player.getTilePos()
playerTilePos.y = playerTilePos.y - 1
if matchVec3(playerTilePos, upControl) == True: snake.changeDirection("up")
elif matchVec3(playerTilePos, downControl) == True: snake.changeDirection("down")
elif matchVec3(playerTilePos, leftControl) == True: snake.changeDirection("left")
elif matchVec3(playerTilePos, rightControl) == True: snake.changeDirection("right")
#move the snake
playing = snake.move()
except KeyboardInterrupt:
print "stopped"
<pre>
Note! I changed the glowing obsidian aka ‘The Snakes food’ to a gold blocks because i was testing it on raspberry juice
Hi it’s Phillip and I’m back updating the site – here is our first script to highlight!
Jjinux has submitted his script to our github code archive, thanks!
This script makes a Sierpinske Triangle in the sky made out of snow!!!
Here are some photos and a video to show you what it does:
here’s a video of the script. Please Subscribe, Like, Comment or please do them all!! 🙂
Here’s the code:
</pre>
#!/usr/bin/env python
# mcpipy.com retrieved from URL below, written by jjinux
# http://jjinux.blogspot.com/2013/05/drawing-sierpinskis-triangle-in.html
"""Draw Sierpinski's triangle in Minecraft.
See: http://jjinux.blogspot.com/2013/05/drawing-sierpinskis-triangle-in.html
"""
import random
import mcpi.minecraft
import mcpi.block as block
import server
# It goes from -MAX_XZ to MAX_XZ.
MAX_XZ = 128
MAX_Y = 64
# These are the vertices of the triangle. It's a list of points. Each point
# is an (X, Y, X) tuple.
TRIANGLE_HEIGHT = MAX_Y - 1
TOP = (-MAX_XZ, TRIANGLE_HEIGHT, 0)
BOTTOM_LEFT = (MAX_XZ, TRIANGLE_HEIGHT, MAX_XZ)
BOTTOM_RIGHT = (MAX_XZ, TRIANGLE_HEIGHT, -MAX_XZ)
TRIANGLE_VERTICES = [TOP, BOTTOM_LEFT, BOTTOM_RIGHT]
BASE_BLOCK_ID = block.SANDSTONE.id
TRIANGLE_BLOCK_ID = block.SNOW.id
# This is the maximum number of iterations to let the algorithm run. The
# algorithm relies on randomness, so I'm just picking a sensible value.
MAX_ITERATIONS = MAX_XZ ** 2
PRINT_FREQ = 1000
def clear_board(minecraft):
minecraft.setBlocks(-MAX_XZ, 0, -MAX_XZ, MAX_XZ, MAX_Y, MAX_XZ, 0)
minecraft.setBlocks(-MAX_XZ, 0, -MAX_XZ, MAX_XZ, -MAX_Y, MAX_XZ, BASE_BLOCK_ID)
def draw_sierpinski_triangle(minecraft):
def random_in_range():
return random.randint(-MAX_XZ, MAX_XZ)
def int_average(a, b):
return int(round((a + b) / 2.0))
# Draw the triangle vertices.
for (x, y, z) in TRIANGLE_VERTICES:
minecraft.setBlock(x, y, z, TRIANGLE_BLOCK_ID)
# Pick a random point to start at.
current = (random_in_range(),
TRIANGLE_HEIGHT,
random_in_range())
for i in xrange(MAX_ITERATIONS):
if i % PRINT_FREQ == 0:
print("Drew %s blocks" % i)
# Pick a random vertex to "walk" toward.
destination = random.choice(TRIANGLE_VERTICES)
# Draw a block in the middle of the current location and the
# destination.
(c_x, c_y, c_z) = current
(d_x, d_y, d_z) = destination
current = (
int_average(c_x, d_x),
TRIANGLE_HEIGHT,
int_average(c_z, d_z)
)
(x, y, z) = current
minecraft.setBlock(x, y, z, TRIANGLE_BLOCK_ID)
if __name__ == "__main__":
minecraft = mcpi.minecraft.Minecraft.create(server.address)
# Uncomment this if you need it.
# clear_board(minecraft)
draw_sierpinski_triangle(minecraft)
And the source is on our github as usual!! Source: Pull Request On Github
Ryan (goldfish) has submitted 3 new programs — and he has my many thanks for doing so by pushing his changed to the github repo and making them compatible with the other scripts!!
#! /usr/bin/python
import mcpi.minecraft as minecraft
import server
""" hello world test app
@author: goldfish"""
mc = minecraft.Minecraft.create( server.address )
mc.postToChat("Hello, Minecraft!")
#! /usr/bin/python
import mcpi.minecraft as minecraft
import mcpi.block as block
import server
""" clearZone clears an area and sets a stone floor
takes two x,z pairs clears everything above 0y and then sets
a stone floor at -1y
@author: goldfish"""
def clearZone( alocx, alocz, blocx, blocz ):
mc.setBlocks( alocx, 0, alocz, blocx, 64, blocz, block.AIR )
mc.setBlocks( alocx, -1, alocz, blocx, -1, blocz, block.STONE )
if __name__ == "__main__":
mc = minecraft.Minecraft.create( server.address )
clearZone( -20, -20, 20, 20 )
Zhuowei Zhang has updated RaspberryJuice to v1.2! v1.2 includes the following changes:
added world.getBlockWithData to be compatible with Minecraft Pi 1.1.
changed block hit events to listen for right-click with sword
added ban-ip feature: if an IP is banned in the server, connections to the Pi API will be automatically kicked
I’m most excited about the addition of getBlockWithData. With this change, the minescan.py program works just as well against the desktop as the raspberry pi.
If you already have a Raspberry Pi, feel free to skip to the next blog post.
Occasionally I have a discussion with someone about the Raspberry Pi and at some point I mention what a wonderful device this $35 computer is… they typically get excited they can do so much for just $35. And if I have the chance, I’ll try to adjust their expectations noting that it can cost “as little as $35” if you have all the “accessories” already.
So I wanted to try to lay out in this post just what it costs to get started – and hopefully this may be a useful list if you want to buy one yourself.
The Raspberry Pi is an amazing little computer and it only costs $35. However if you want to play minecraft pi or access the web, you’ll need a few more things including:
a TV or PC Monitor capable of receiving a signal via HDMI. (For this post, I’ll assume only HDMI – although Raspberry PI includes analog/composite video and analog stereo support)
A HDMI cable to connect from the Raspberry PI to the TV/Monitor.
A cable to power the USB – e.g. a micro USB power cable with 1 amp of power.
A 4GB+ SD card for local storage (including the operating system)
A keyboard with USB connection
A mouse with USB connection
a USB Wifi 802.11b+ adapter so you can connect to Wifi. (You can also connect via Ethernet, but I’ll assume Wifi is what most people want)
A USB hub (because the Pi includes 2 USB ports, and I’ve specified 3 USB devices above – Wifi, keyboard and mouse)
And of course… the Rasbperry Pi device — 256MB of RAM or 512MB of RAM
Now for me, I already had everything else when I got the Rapsberry Pi. I had a micro USB device from my kindle ebook reader, with a USB charger. I had a keyboard, mouse and USB hub from an old computer. I did have to buy the USB Wifi adapter/chip, but my cost was closer to $35. If you have nothing though (other than a HDMI Capable TV/monitor) you’ll need to spend more like $130 (including the $35 for the Raspberry Pi).
Here’s how I came up with the $130 price. Newark.com (aka Element 14) is one of the manufacturers and retailers of the Raspberry PI – so via their web site I added the following to my cart:
And the total for the above was:
Add another approximately $8 for shipping and you get to $130…
So again — hopefully this will cost you less as you have some of the above things already not being used, but worst cast it’s like $130.
Is it worth it?
So if you’re asking whether it’s worth spending that much money for one of these devices? I’d say:
If you are considering buying a kid a Raspberry PI vs. a low cost desktop/laptop PC — I’d say go for the PC! Yes you can access the web, etc with the Raspberry PI — but it’s slow and it’s more complex for a kid to start out.
If you are considering buying this to experiment, play or other purposes — then absolutely go for it!
For me, as a father wanting to teach my kids more about computers — it was a great investment (and I just bought two more today).
Of course my bias is on software — and Rapsberry Pi is as much about connecting to to hardware of all types – and controlling it with software. That’s something you can’t get to the same degree on a PC..
Beware the starter kits — know what it includes and whether it’s important to you…
Again if you are mostly looking for how to get it up and running so you can interact with the software — the list above is what you need.
There are lots of great web sites that sell starter kits that include what you need to connect raspberry pi to other hardware — but not the mouse, keyboard, power, SD card, hdmi cable, etc described above. So look carefully at what’s included in these kits.
Are you looking at Raspberry Pi primarily as a way to play minecraft?
In that case, you should know that Minecraft Pi Edition is free — but it’s a subset of the full Minecraft experience on the PC. Minecraft Pi is based on Minecraft Pocked Edition and both are missing some features that many kids enjoy like the ability to connect to multiplayer servers across the internet.
What did I miss?
Hopefully the above is helpful — and make no mistake, I’m very excited about Raspberry Pi and I recommend to most people to get one — as long as they understand what it is they are and are not getting…
Please add your comments though on your view. If there are cheaper options to get a starter kit as described above – please add that in the comments as well!
Writing this blog has been a lot of fun — far more than I expected. It was started as a way to collect the python programs Phillip and I found and to encourage ourselves and others to learn about Python by playing with Minecraft and Raspberry Pi. It’s been great to see how many people are discovering Minecraft PI Edition (MCPI) themselves and writing python scripts… and I given this is just v0.1.1 and a few weeks old, I expect it it will continue to take off.
Which is leading me to the realization — there is more already than Phillip and I can handle ourselves and we need the help of others to continue this. So I’m making a request for help!
If you are interested in helping, please drop us an email at mcpipy@mcpipy.com and if you have ideas on how you can help – please include that.
There is lots that can be done, here are a few ideas on how I’d like to get help from others — but if there is something you can do not on this list, please let us know!
One time or repeat contributors – Write one or more articles to appear on the blog. It can be any topic related to Python (or Programming), Minecraft and Raspberry PI (or RaspberryJuice)
Finding scripts – help us search the far corners of the the net for interesting creations we should highlight.
Testing scripts – we have a number of scripts we haven’t had time to test out. Test them, grab some photos or even make a youtube video!
Github updates – besides checking in the last scripts, we can discuss ideas on how to improve this resource further…
Promotion – help us get the word out on how to program Minecraft in python on raspberry pi — and find others that can learn from the blog, and contribute!
Finally if you aren’t able to help — then please leave a comment to encourage us and note what you’d like to see on future blog posts. We have a wide range of interests among the readers and we’d like to get to know you better so we can prioritize creating the right content.
As always, thanks for reading and all the contributions to date!!
So this blog has been focused on Python because well that’s what I know (and continue to learn) and I think Python is beautiful. But of course there are still people using other languages out there <g> and I’m thrilled to see people are connecting these up to Minecraft Pi Edition.
Java — bindings included with the mcpi distribution
I don’t expect to blog any further about the non-python bindings, but wanted to share what I’ve seen so far. If I’ve missed any, please feel free to add them via the comments and I’ll update this posting periodically to catalog them.
Also please let me know as well if there are collections of programs written in other languages as well and I’m happy to link to them!
Python & Minecraft on Raspberry Pi! 