riventest_registration

local riventest_nodes = { -- Default stairs/slabs/panels/microblocks:

        "rt1",
        "rt2",
        "rt5",
        "rt3",
        "rt4",
        "rt7",
        "rt8",
        "rt10",
        "rt11",
        "rt12",
        "wood",
        "inward-squared brownstone",
        "flower-patterned metal",
        "lined brownestone",
        "metal block",
        "golden block",
        "outward-squared brownstone",
        "cobble brightstone",
        "rusted metal block",
        "flower-patterned brightstone",
        "mosaic brightstone",
        "bluewood"

}


        for _, name in pairs(cave_nodes) do
    local nodename = "riventest:"..name
    local a,b = string.find(name, ":")
    if b then
        nodename = name
        name = string.sub(name, b+1)
    end
    local ndef = minetest.registered_nodes[nodename]
    if ndef then
        local drop
        if type(ndef.drop) == "string" then
            drop = ndef.drop:sub((b or 8)+1)
        end

        local tiles = ndef.tiles
        if #ndef.tiles > 1 and ndef.drawtype:find("glass") then
            tiles = { ndef.tiles[1] }
        end

        stairsplus:register_all("riventest", name, nodename, {
            description = ndef.description,
            drop = drop,
            groups = ndef.groups,
            sounds = ndef.sounds,
            tiles = tiles,
            sunlight_propagates = true,
            light_source = ndef.light_source
        })
    end
end