murtle

-- Murtle API
-- By moverperfect

-- for more visit
--

function fwd(n)
    if n == nil then
        n=1
    end
    for i=1, n do
        while not turtle.forward() do
            turtle.dig()
        end
    end
end

function down(n)
    if n == nil then
        n=1
    end
    for i=1, n do
        while not turtle.down() do
            turtle.digDown()
        end
    end
end

function up(n)
    if n == nil then
        n=1
    end
    for i=1, n do
        while not turtle.up() do
            turtle.digUp()
        end
    end
end

function back(n)
    if n == nil then
        n=1
    end
    for i=1,n do
        turtle.back()
    end
end

function left(n)
    if n == nil then
        n = 1
    end
    for i=1, n do
        turtle.turnLeft()
    end
end

function right(n)
    if n == nil then
        n = 1
    end
    for i=1,n do
        turtle.turnRight()
    end
end

function turnright()
    turtle.turnRight()
    fwd()
    turtle.turnRight()
end

function turnleft()
    turtle.turnLeft()
    fwd()
    turtle.turnLeft()
end

function place(s)
    if s == nil then
        turtle.place()
    else
        turtle.select(s)
        if turtle.getItemCount(s) == 0 then
            turtle.select(s+1)
            if turtle.getItemCount(s+1) == 0 then
                turtle.select(s+2)
                turtle.place()
            else
                turtle.place()
            end
        else
            turtle.place()
        end
    end
end

function placedown(s)
    if s == nil then
        turtle.placeDown()
    else
        turtle.select(s)
        if turtle.getItemCount(s) == 0 then
            turtle.select(s+1)
            if turtle.getItemCount(s+1) == 0 then
                turtle.select(s+2)
                turtle.placeDown()
            else
                turtle.placeDown()
            end
        else
            turtle.placeDown()
        end
    end
end

function placeup(s)
    if s == nil then
        turtle.placeUp()
    else
        turtle.select(s)
        if turtle.getItemCount(s) == 0 then
            turtle.select(s+1)
            if turtle.getItemCount(s+1) == 0 then
                turtle.select(s+2)
                turtle.placeUp()
            else
                turtle.placeUp()
            end
        else
            turtle.placeUp()
        end
    end
end

function checkeven(n)
    if n % 2 == 0 then
        return true
    else
        return false
    end
end

function dig(n)
    if n == nil then
        fwd(1)
        turtle.digUp()
        turtle.digDown()
    else
        for i=1,n do
            fwd(1)
            turtle.digUp()
            turtle.digDown()
        end
    end
end

function sbendr()
    turtle.turnRight()
    fwd(1)
    turtle.turnLeft()
    fwd(1)
end

function sbendl()
    turtle.turnLeft()
    fwd(1)
    turtle.turnRight()
    fwd(1)
end