PinwheelMinev1

function shaft()
--variables
shaftdepth = 0
shaft_branch_count = 0

term.clear()
repeat
    turtle.dig()
    if turtle.forward() then
        shaftdepth = shaftdepth + 1
        shaft_branch_count = shaft_branch_count + 1
        --percentage()
        turtle.digUp()
    else
        print("Movement Impeded!")
        turtle.dig()
    end
    if shaft_branch_count == 3 then
        turtle.turnLeft()
        branch()
    end
until shaftdepth == des_depth
shaft_return()
end

function branch()
    branchdepth = 0
    repeat
        turtle.dig()
        if turtle.forward() then
            branchdepth = branchdepth +1
            turtle.digUp()
        else
            print("Movement Impeded!")
            turtle.dig()
        end
    until branchdepth == des_branch_depth
    turtle.turnLeft()
    turtle.turnLeft()
    repeat
        if turtle.forward() then
            des_branch_depth = des_branch_depth - 1
        else
            print("Movement Impeded!")
            turtle.dig()
            sleep(0.5)
        end
    until des_branch_depth == 0
    turtle.turnLeft()
end

function shaft_return()
end

function dorotate()
end

function percentage()
percent = tonumber(shaftdepth) / tonumber(des_depth) * 100
percentage = math.ceil(percent)
print("Completed " ..percentage.. "%")
end

print("Pinwheel Mining System V. 0.2B")
sleep (1)
print("Place in a 3x3 room at desired height")
sleep(1)
print("Ready? [y/n]")
sleep(0.5)
local confirm = read()
if confirm == "y" then
term.clear()
sleep(1)
print("Desired Shaft Length:")
sleep(0.5)
des_depth = read()
print("Branch Depth = Shaft Length + 2")
des_branch_depth = des_depth + 2
term.clear()
sleep(1)
--print("Desired Branch Length:")
--sleep(0.5)
--des_branch_depth = read()
shaft()
else
    os.shutdown()
end