pixelart2

function iff (x,y)
if a[x][y]==1 then
turtle.select(1)
elseif a[x][y]==2 then
turtle.select(2)
elseif a[x][y]==3 then
turtle.select(3)
elseif a[x][y]==4 then
turtle.select(4)
elseif a[x][y]==5 then
turtle.select(5)
elseif a[x][y]==6 then
turtle.select(6)
end
end

a = {
    {
        {1, 2, 2, 1},
        {2, 0, 0, 2},
        {2, 0, 0, 2},
        {1, 2, 2, 1}
    },
    {
        {2, 0, 0, 2},
        {0, 0, 0, 0},
        {0, 0, 0, 0},
        {2, 0, 0, 2}
    },
    {
        {2, 0, 0, 2},
        {0, 0, 0, 0},
        {0, 0, 0, 0},
        {2, 0, 0, 2}
    },
    {
        {1, 2, 2, 1},
        {2, 0, 0, 2},
        {2, 0, 0, 2},
        {1, 2, 2, 1}
    },
}






turtle.up()
for x=1,#a do
    for y=1,#a[x] do
        for z = 1,#a[x][y] do
            iff(x,y)
            turtle.placeDown()
            turtle.forward()
        end
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()
        for y = 1,11 do
            turtle.forward()
        end
        turtle.turnRight()
        turtle.turnRight()
    end
end