BetterMining

local m = require( "blib" )
local torch = "minecraft:torch"
local chest = "minecraft:chest"
local enderChest = "minecraft:ender_chest"
local chestDumpLoc = {x = 1, y = 0, z = 1, xf = 0, yf = -1}

local Length
local Width

local reqTorches
local reqChests

function Shutdown(message)
    print(message)
    print("Powering down...")
    return 1
end

function NavigateToLocation(location, order)

    for i = 1, 2 do
        print(order[i] == "x")
        print(order[i])
        print("x")
        if(order[i] == "x") then
            -- Orient Turtle X Direction
            if(m.coords.x < location.x) then
                while m.coords.xf ~= 1 do
                    m.MapTurnRight()
                end
            else
                while m.coords.xf ~= -1 do
                    m.MapTurnRight()
                end
            end

            -- Navigate X axis
            while m.coords.x ~= location.x do
                m.MapForward()
            end
        elseif (order[i] == "y") then
                -- Orient Turtle Y Direction
            if(m.coords.y < location.y) then
                while m.coords.yf ~= 1 do
                    m.MapTurnRight()
                end
            else
                while m.coords.yf ~= -1 do
                    m.MapTurnRight()
                end
            end

            -- Navigate Y axis
            while m.coords.y ~= location.y do
                m.MapForward()
            end
        end

    end

    -- Orient according to location specs
    while m.coords.xf ~= location.xf do
        m.MapTurnRight()
    end

    while m.coords.yf ~= location.yf do
        m.MapTurnRight()
    end

end

function DistanceFromLocation(location)
    xd = math.abs(location.x - m.coords.x)
    yd = math.abs(location.y - m.coords.y)
    zd = math.abs(location.z - m.coords.z)
    return xd + yd + zd
end

--- Actual Mining ---
function Start()

    if(m.SelectItem("minecraft:chest")) then
        turtle.digDown()
        turtle.placeDown()
    end
    m.Forward3() -- The turtle starts outside the square, as such, it enters at the start, and the Y index
                 -- is actually decremented by one, since mining on the x axis will manage one block off each
                 -- level change

    local torchL = 0
    local torchW = 8


    -- fix not finish on width
    -- fix chest storage thing (puts in coal)
    for x = 1, Width do                         -- starting length cuts one turn off, but not one column off. see below
        torchW = torchW + 1                     -- increment torchPlacingWidth

        for y = 1, Length - 1 do                -- width cuts one length down off the next

            -- check for fuel
            local fuelAmount = DistanceFromLocation(chestDumpLoc) + 5
            if(not m.CheckFuel(fuelAmount)) then
                local savedLoc = m.table_deepcopy(m.coords)
                NavigateToLocation(chestDumpLoc, {"x", "y"})
                while not m.SelectItem("minecraft:coal") do
                    print("Out of fuel ...")
                    print("Place coal in the inventory to continue.")
                    os.sleep(3)
                end
                m.CheckFuel(fuelAmount)
                NavigateToLocation(savedLoc, {"y", "x"})
            end

            -- check for torch placement
            torchL = torchL + 1                 -- increment torchPlacementLength
            if(reqTorches == true) then
                if(torchL >= 8 and torchW >= 6) then -- if its been 6 blocks wide and traveled 8 blocks down, place a torch
                    if(not m.PlaceTorch()) then
                        local savedLoc = m.table_deepcopy(m.coords)
                        NavigateToLocation(chestDumpLoc, {"x", "y"})
                        while not m.SelectItem("minecraft:torch") do
                            print("Out of torches ...")
                            print("Place coal in the inventory to continue.")
                            os.sleep(3)
                        end
                        NavigateToLocation(savedLoc, {"y", "x"})
                    end
                    torchL = 1
                end
            end


            -- check if inventory is full
            if(m.InventoryFull() == true) then
                local savedLoc = m.table_deepcopy(m.coords)
                NavigateToLocation(chestDumpLoc, {"x", "y"})
                if(not m.DumpItemsExistingChest("down")) then
                    local s, data = turtle.inspectDown()
                    while data.name ~= "minecraft:chest" do
                        s, data = turtle.inspectDown()
                        print("Waiting for chest ... ")
                        os.sleep(3)
                    end
                    m.DumpItemsExistingChest("down")
                end
                NavigateToLocation(savedLoc, {"y", "x"})
            end


            m.Forward3()
        end

        if( Width - x ~= 0) then -- Technically on the last column, we continue forward, but don't turn into the next column
            if(math.fmod(x, 2) == 0) then -- if we're on an even column, turn left
                m.TurnLeftDig()
            else -- odd columns (start is 1 btw) turn right!
                m.TurnRightDig()
            end
        end

        if(torchW >= 6)then -- if its been 6 blocks wide, then reset!
            torchW = 0
        end

    end

    return 1
end



--- main ---
function Main()
    local response
    print("Welcome to the BetterMining Program")
    print("BetterMining will mine a 2D plane defined by your X and Y inputs")
    print("")
    print("Do you want to require torches?")
    print("(y for yes, n for no)")
    response = read()
    if(response == "y") then
        reqTorches = true
    else
        reqTorches = false
    end

    -- check if has items
    if(m.GetItemIndex(torch) == nil and reqTorches == true)then
        print("You don't have any torches!")
        return
    end

    --check if has fuel
    if(not m.CheckFuel(10))then
        print("You don't have fuel!")
        return
    end

    m.Clear()


    -- Gets Y Input from user
    print("Length?")
    Length = tonumber(io.read())
    while Length == nil do
        print("oops! enter a number!")
        Length = tonumber(io.read())
    end


    -- Gets X Input from user
    print("")
    print("Width?")
    Width = tonumber(io.read())
    while Width == nil do
        print("oops! enter a number!")
        Width = tonumber(io.read())
    end


    print("Mining Started ... ")
    Start()
    NavigateToLocation(chestDumpLoc, {"x", "y"})
    print("Finished!")
end
Main()