floorLights

local param = ...
if param~=nil then
    local step = param
    os.loadAPI("tillapi")

    local offsetX = 54
    local offsetY = 66
    local offsetZ = 1933

    function goToOffset(x3,y3,z3,facing3)
        tillapi.goTo(x3+offsetX,y3+offsetY,z3+offsetZ,facing3)
    end

    for i=1,12 do
        turtle.select(i)
            turtle.drop()
    end

    north = -1 * ( (10-step) * 10 + 2 )
    south =  (10-step) * 10 + 2
    east =   (10-step) * 10 + 2
    west = -1 * ( (10-step) * 10 + 2 )
    alt = step*10

    local light= (math.floor((south-3)/6))*6+3
    --print(light)

    local count = 0
    local zCount = 0
    local positions = {}
    for z = -1*light,light,6 do
        zCount=zCount+1
        if zCount -(math.floor(zCount/2))*2 > 0 then
            for x = -1*light,light,6 do
                count = count + 1
                positions[count]={}
                positions[count]["Y"]=alt-9
                positions[count]["X"]=x
                positions[count]["Z"]=z
                positions[count]["facing"]=2
            end
        else
            for x = light,-1*light,-6 do
                count = count + 1
                positions[count]={}
                positions[count]["Y"]=alt-9
                positions[count]["X"]=x
                positions[count]["Z"]=z
                positions[count]["facing"]=4
            end
        end
    end
--print(textutils.serialize(positions))

    for i=1,3 do
        local x1=positions[i]["X"]
        local y1=positions[i]["Y"]
        local z1=positions[i]["Z"]
        local facing1=positions[i]["facing"]
        goToOffset( x1 , y1 , z1 , facing1 )
        turtle.digDown()
            turtle.select(1)
            tillapi.itemCheck()
            turtle.placeDown()
    end
else
    print("use lights [stepnumber]")
end