chess Knight

--TODO: add return to start

tArgs = {...}
color = tArgs[1]
function select(i)
    turtle.select(i+ (color == "white" and 0 or 6))
end

function buildBase()
        select(1)
        for y = 1,5 do
                for x = 1,4 do
                                        turtle.placeDown()
                                        turtle.forward()
                end
            if y < 5 then
                if y%2 ~= 0 then
                                        turtle.turnRight()
                                        turtle.placeDown()
                                        turtle.forward()
                                        turtle.turnRight()
                else
                                        turtle.turnLeft()
                                        turtle.placeDown()
                                        turtle.forward()
                                        turtle.turnLeft()
                end
                        end
        end
        turtle.placeDown()
end

function buildMid()
    turtle.back()
    turtle.back()
    turtle.turnLeft()
    turtle.forward()
    turtle.forward()

    for i = 1,5 do
        turtle.up()
        turtle.placeDown()
    end

    if color == "white" then
        turtle.turnRight()
    else
        turtle.turnLeft()
    end

    turtle.forward()
    turtle.placeDown()
    turtle.forward()
    turtle.placeDown()
    turtle.back()
    turtle.up()
    select(3)
    turtle.placeDown()
    turtle.back()
    turtle.down()

    if color ~= "white" then
        turtle.turnRight()
    else
        turtle.turnLeft()
    end

    turtle.back()
    turtle.back()
    turtle.down()

    if color == "white" then
        rightSide()
        turnCorner()
        front()
        turnCorner()
        turtle.up()
        leftSide()
        turnCorner()
        back()
    else
        leftSide()
        turnCorner()
        back()
        turtle.down()
        turnCorner()
        rightSide()
        turnCorner()
        front()
    end
end

 function turnCorner()
        turtle.turnRight()
        turtle.forward()
        turtle.forward()
        turtle.turnLeft()
        turtle.forward()
        turtle.forward()
        turtle.turnLeft()
 end

 function leftSide()
    select(4)
    turtle.place()

    select(5)
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()
    turtle.place()
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()

    turtle.down()

    select(3)
    turtle.place()
    turtle.down()
    turtle.place()
    turtle.down()

    select(2)
    turtle.place()
    turtle.down()

    turtle.down()
    turtle.forward()
    turtle.turnLeft()
    turtle.place()
    turtle.turnRight()
    turtle.back()
    turtle.place()
end

function rightSide()
    select(4)
    turtle.place()

    select(5)
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
    turtle.place()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()

    turtle.down()

    select(3)
    turtle.place()
    turtle.down()
    turtle.place()
    turtle.down()

    select(2)
    turtle.place()
    turtle.down()

    turtle.down()
    turtle.forward()
    turtle.turnLeft()
    turtle.place()
    turtle.turnRight()
    turtle.back()
    turtle.place()
end

function front()
    select(2)
    turtle.forward()
    turtle.turnLeft()
    turtle.place()
    turtle.turnRight()
    turtle.back()
    turtle.place()
    turtle.up()

    select(4)
    turtle.place()
    turtle.up()

    select(5)
    turtle.place()
    turtle.up()

    select(3)
    turtle.place()
end

function back()
    select(2)
    turtle.forward()
    turtle.turnLeft()
    turtle.place()
    turtle.turnRight()
    turtle.back()
    turtle.place()
    turtle.up()

    select(2)
    turtle.place()
    turtle.up()

    select(3)
    turtle.place()
    turtle.up()

    select(4)
    turtle.place()
    turtle.up()

    select(5)
    turtle.place()
    turtle.up()

    select(3)
    turtle.forward()
    turtle.place()
    turtle.back()
end

function returnToStart()

    if color == "white" then
        for i = 1,6 do
            turtle.down()
        end
    else
        for i = 1,4 do
            turtle.down()
        end
    end

    turtle.turnLeft()
    turtle.forward()
    turtle.forward()
    turtle.turnRight()
end
buildBase()
buildMid()
returnToStart()