checkerBot

rednet.open("right")

function up()
   turtle.up()
end

function down()
   turtle.down()
end

function fr()
   turtle.forward()
   turtle.turnRight()
   turtle.forward()
   turtle.turnLeft()
end

function fl()
   turtle.forward()
   turtle.turnLeft()
   turtle.forward()
   turtle.turnRight()
end

function br()
   turtle.back()
   turtle.turnLeft()
   turtle.back()
   turtle.turnRight()
end

function bl()
   turtle.back()
   turtle.turnRight()
   turtle.back()
   turtle.turnLeft()
end

function goHome()
   shell.run("goHome")
   rednet.open("right")
end

function goOut()
   shell.run("goOut")
   rednet.open("right")
end

function waitMsg()
   local ID,msg,dist = rednet.receive()
   print(msg)
   if msg=="fr" then fr() end
   if msg=="br" then br() end
   if msg=="fl" then fl() end
   if msg=="bl" then bl() end
   if msg=="jfr" then
      up()
      fr()
      fr()
      down()
   end
   if msg=="jbr" then
      up()
      br()
      br()
      down()
   end
   if msg=="jfl" then
      up()
      fl()
      fl()
      down()
   end
   if msg=="jbl" then
      up()
      bl()
      bl()
      down()
   end
   if msg=="goHome" then goHome() end
   if msg=="goOut" then goOut() end
   rednet.send(ID,"Success")
end

while true do waitMsg() end