ctm

minetest.register_node("stone:brick_1", {
    description = "Brick",
    paramtype2 = "facedir",
    place_param2 = 0,
    tiles = {"stone_brick_1.png"},
    is_ground_content = false,
    groups = {cracky = 3},
    sounds = default.node_sound_stone_defaults(),
    drop = {},

    on_place = function(itemstack, placer, pointed_thing)
        local stack = ItemStack("stone:brick_" .. math.random(1,3))
        local ret = minetest.item_place(stack, placer, pointed_thing)
        return ItemStack("stone:brick_1 " ..
            itemstack:get_count() - (1 - ret:get_count()))
    end,
})

for i = 2, 3 do
    minetest.register_node("stone:brick_" .. i, {
        description = "Brick",
        tiles = {"stone_brick_" .. i .. ".png"},
--      inventory_image = "stone_brick_" .. i .. ".png",
--      wield_image = "stone_brick_" .. i .. ".png",
        groups = {cracky = 3, not_in_creative_inventory =1},
        sounds = default.node_sound_stone_defaults(),
        drop = {},
    })
end