Lumber_Turtle

local Oak = "minecraft:oak_log"
local Birch = "minecraft:birch_log"
local Spruce = "minecraft:spruce_log"
local Jungle = "minecraft:jungle_log"

local OakSap = "minecraft:oak_sapling"

rednet.open("left")

-- Section Funtions --

function Startup()
        Start()
        Circle()
        End()
        Reload()
end

--check if there are enough sapplings to set
function CheckSaplings()
    turtle.select(1)
    amount = turtle.getItemCount()

    turtle.suck(64 - amount)
end

-- check if block is a log
function CheckFrontBlock()
    local success, data = turtle.inspect()

    if success then
        if data.name == Oak or data.name == Birch or data.name == Spruce or data.name == Jungle then
            ChopTree()
        end
    else
        SetSapling()
    end
    turn()
end

-- chop rest of the tree
function ChopTree()
    turtle.dig()
    turtle.forward()
    for i = 0, 5, 1 do
        turtle.digUp()
        turtle.up()
    end

    for i = 0, 5, 1 do
        turtle.digDown()
        turtle.down();
    end

    turn()
    turtle.forward()
    turn()

    SetSapling()
end

function SetSapling()
    turtle.select(1)

    if turtle.getItemCount() > 0 then
        if turtle.getItemDetail().name == OakSap then
            turtle.place()
        end
    end
end

-- get Sapplings and fuel
function Reload()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()

    CheckSaplings()

    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    turtle.turnLeft()

    Refuel()

    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
end

-- move to startlocation
function Start()
    turtle.forward()
    turtle.forward()
    turtle.turnLeft()
    for i = 0, 5, 1 do
        turtle.forward()
    end
    turtle.turnRight()
end

-- end circle
function End()
    turtle.forward()
    turtle.forward()
    Empty()
end

-- start circle
function Circle()
    MoveLine()

    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.turnRight()

    MoveLine()

    turtle.turnLeft()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.turnLeft()

    MoveLine()

    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.turnRight()

    MoveLine()

    turtle.turnLeft()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.turnLeft()

    MoveLine()

    turtle.turnLeft()

    for i = 0, 5, 1 do
        turtle.forward()
    end

    turtle.turnLeft()

    for i = 0, 14, 1 do
        turtle.forward()
    end
end

-- move line forward
function MoveLine()
    for i = 0, 14, 1 do
        turtle.dig()
        turtle.forward()
        turtle.turnRight()
        CheckFrontBlock()
        -- turn()
        CheckFrontBlock()
        turtle.turnLeft()
    end
end

-- empty inventory when full
function Empty()
    for i = 1, 16, 1 do
        turtle.select(i)
        turtle.drop()
    end
end

-- turn 180°
function turn()
    turtle.turnLeft()
    turtle.turnLeft()
end

-- refuel or wait if there is not enough
function Refuel()
    repeat
        turtle.select(2)
        turtle.suck(64)
        turtle.refuel()
    until(turtle.getFuelLevel() > 10000)
end

-- program loop

while true do
    local id, msg = rednet.receive(1)
    if msg == "Wood" then
        Startup()
        rednet.send(id, "CuttingComplete")
    end
end