track

local REG_TRACK_COUNT = 37
local POWER_TRACK_COUNT = 1
local rt = 1
local pt = 2
local totalDistance = 0

if #arg == 1 then
    totalDistance = tonumber(arg[1])
else
    print("Please give total count of track iterations to lay so I don't go on forever.")
end

function regTrack()
    turtle.select(rt)
    for i = 1, REG_TRACK_COUNT do
        if turtle.detect() == true then
            print("regTrack: Block in the way")
            return false
        else
            print("regTrack: moving forward.")
            turtle.forward()
            print("regTrack: laying track.")
            turtle.placeDown(1)
        end
    end
    return true
end

function powTrack()
    turtle.select(pt)
    for i = 1, POWER_TRACK_COUNT do
        if turtle.detect() == true then
            print("powTrack: Block in the way")
            return false
        else
            print("powTrack: moving forward.")
            turtle.forward()
            print("powTrack: laying track.")
            turtle.placeDown(1)
        end
    end
    return true
end

turtle.up()
for i=1, totalDistance do
    if regTrack() == true then
        print("Layed reg track set.")
        if powTrack() == true then
            print("Layed power track set.")
        else
            print("Power track error.")
        end
    else
        print("Reg track error.")
    end
end