Minecraft Pi / Pi Matrix LED Location display

gistfile1.py

import smbus
import mcpi.minecraft as minecraft
import sched
import time
 
#chip definitions for the pi matrix and initialization of the bus to write to it
ADDR = 0x20
DIRA = 0x00
DIRB = 0x01
PORTA = 0x12
PORTB = 0x13
bus = smbus.SMBus(1)
 
#sets a single LED and clears all others
def SetLED (row, col):
  bus.write_byte_data(ADDR, PORTA, 0x80>>col)x
  bus.write_byte_data(ADDR, PORTB, ~(1<<row))
 
#intitialize ports
bus.write_byte_data(ADDR, DIRA, 0x00)
bus.write_byte_data(ADDR, DIRB, 0x00)
bus.write_byte_data(ADDR, PORTB, 0x00)
 
#initialize Minecraft
mc = minecraft.Minecraft.create()
 
#create a scheduler
s = sched.scheduler (time.time, time.sleep)
 
#looped function
def minimap_cycle(sc):
  #get the position and realign it so 0,0 is at a corner and not the center and divide so it corresponds with an LED
  #world size in minecraft pi is 256x256
  playerPos = mc.player.getPos()
  ledX =(int(playerPos.x) + 128)/32
  ledY =(int(-playerPos.z) + 128)/32
  SetLED(ledX, ledY)
  #call the function again in 1/10th of a minute
  c.enter(0.1, 1, minimap_cycle, (sc,))
 
#start running the function
s.enter(0.1, 1, minimap_cycle, (s,))
s.run()