print("Digite o X")
x = tonumber(read())

print("Digite o Y")
y = tonumber(read())

print("Digite o Z")
z = tonumber(read())


function turnRight()
    turtle.turnRight()
    turtle.dig()
    blockDetect()
    turtle.forward()
    turtle.turnRight()
end

function turnLeft()
    turtle.turnLeft()
    turtle.dig()
    blockDetect()
    turtle.forward()
    turtle.turnLeft()
end

function turtleDig()
    for i=1,x-1,1 do
        turtle.dig()
            blockDetect()
        turtle.forward()
        putFloor(chao)
    end
end

function useTorch()
    turtle.turnRight()
    turtle.turnRight()
    turtle.place()
    turtle.turnRight()
    turtle.turnRight()
end

function checkTorch()
    print("Deseja utilizar tochas?")
    print("Se sim-1")
    print("Se nao-0")
    j = tonumber(read())
    if j ~= 0 then
        while turtle.getItemDetail(15) == nil or turtle.getItemDetail(15).name ~= "minecraft:torch" do
            print("Coloca tochas na slot 15")
            read()
        end
        useTorch()
    end
end

function goBack()
    if y%2==0 then
        turtle.turnRight()
    else
        for i=1,x,1 do
            turtle.back()
            blockDetect()
        end
        turtle.turnLeft()
    end
    for i=1,y-1,1 do
        turtle.forward()
    end
end

function prepareNewLayer(k)
    if k~=z then
        turtle.turnRight()
        turtle.digDown()
        turtle.down()
    end
end

function stepsPerLayer()
    steps = x * y + 1
    steps = steps + y-1
    if y%2~=0 then
        steps = steps + x-1
    end
    return steps
end

function blockDetect()
    while turtle.detect() == true do
        turtle.dig()
    end
end

function refuel()
        turtle.select(16)
        turtle.refuel(math.ceil(math.ceil((stepsPerLayer() * z + 2) / 80)))
end

function printFuelNeeded()
    print("E necessario no total " .. math.ceil((stepsPerLayer() * z + 2) / 80) .. " carvoes")
end

function requireFuel()
    while turtle.getItemDetail(16) == nil or turtle.getItemDetail(16).name ~= "minecraft:coal" do
        print("Coloca carvao na slot 16")
        print("Ja esta?")
        read()
    end
    while turtle.getItemDetail(16).count < math.ceil((stepsPerLayer() * z + 2) / 80) do
        print("Falta " .. math.ceil((stepsPerLayer() * z + 2) / 80) - turtle.getItemDetail(16).count .. " carvoes" )
        read()
    end
    print("otimo!")
end

function createFloor()
        print("Deseja ter chao limpo?")
        print("Se sim-1")
        print("Se nao-0")
        chao = tonumber(read())
        if chao ~= 0 then
        while turtle.getItemDetail(14) == nil or turtle.getItemDetail(14).name ~= "minecraft:water_bucket" do
            print("Coloca um balde de agua na slot 14")
            read()
        end
            while turtle.getItemDetail(13) == nil or turtle.getItemDetail(13).name ~= "minecraft:cobblestone" do
                print("Coloca cobblestone na slot 13")
                read()
            end
    end
end

function putFloor(chao)
    if chao ~= 0 then
        if turtle.detectDown() ~= true then
      turtle.back()
      turtle.select(14)
      turtle.place()
      turtle.place()
      turtle.forward()
      turtle.select(13)
      turtle.placeDown()
        end
    end
end

function main()
    for k=1,z,1 do
        for j=1,y,1 do
        turtleDig()
        if j~=y then
            if j%2~=0 then
                    turnRight()
                else
                    turnLeft()
            end
        end
    end
    goBack()
    prepareNewLayer(k)
    end
end

createFloor()
printFuelNeeded()
requireFuel()
refuel()
turtle.dig()
turtle.forward()
turtle.dig()
turtle.forward()
main()