if minetest.get_modpath("stairs") ~= nil then
-- Greenstone
stairs.register_stair_and_slab(
	"greenstone",
	"too_many_stones:greenstone",
	{cracky = 3},
	{"tms_greenstone.png"},
	"Greenstone Stair",
	"Greenstone Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"greenstone_cobble",
	"too_many_stones:greenstone_cobble",
	{cracky = 3},
	{"tms_greenstone_cobble.png"},
	"Cobbled Greenstone Stair",
	"Cobbled Greenstone Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"greenstone_brick",
	"too_many_stones:greenstone_brick",
	{cracky = 2},
	{"tms_greenstone_brick.png"},
	"Greenstone Brick Stair",
	"Greenstone Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Bluestone
stairs.register_stair_and_slab(
	"bluestone",
	"too_many_stones:bluestone",
	{cracky = 3},
	{"tms_bluestone.png"},
	"Bluestone Stair",
	"Bluestone Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"bluestone_cobble",
	"too_many_stones:bluestone_cobble",
	{cracky = 3},
	{"tms_bluestone_cobble.png"},
	"Cobbled Bluestone Stair",
	"Cobbled Bluestone Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"bluestone_brick",
	"too_many_stones:bluestone_brick",
	{cracky = 2},
	{"tms_bluestone_brick.png"},
	"Bluestone Brick Stair",
	"Bluestone Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Calcite
stairs.register_stair_and_slab(
	"calcite",
	"too_many_stones:calcite",
	{cracky = 3},
	{"tms_calcite.png"},
	"Calcite Stair",
	"Calcite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"calcite_brick",
	"too_many_stones:calcite_brick",
	{cracky = 2},
	{"tms_calcite_brick.png"},
	"Calcite Brick Stair",
	"Calcite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Carnotite
stairs.register_stair_and_slab(
	"carnotite",
	"too_many_stones:carnotite",
	{cracky = 3},
	{"tms_carnotite.png"},
	"Carnotite Stair",
	"Carnotite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"carnotite_cobble",
	"too_many_stones:carnotite_cobble",
	{cracky = 3},
	{"tms_carnotite_cobble.png"},
	"Cobbled Carnotite Stair",
	"Cobbled Carnotite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"carnotite_brick",
	"too_many_stones:carnotite_brick",
	{cracky = 2},
	{"tms_carnotite_brick.png"},
	"Carnotite Brick Stair",
	"Carnotite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Scoria
stairs.register_stair_and_slab(
	"scoria",
	"too_many_stones:scoria",
	{cracky = 3},
	{"tms_scoria.png"},
	"Scoria Stair",
	"Scoria Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"scoria_cobble",
	"too_many_stones:scoria_cobble",
	{cracky = 3},
	{"tms_scoria_cobble.png"},
	"Cobbled Scoria Stair",
	"Cobbled Scoria Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"scoria_brick",
	"too_many_stones:scoria_brick",
	{cracky = 2},
	{"tms_scoria_brick.png"},
	"Scoria Brick Stair",
	"Scoria Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Kyanite
stairs.register_stair_and_slab(
	"kyanite",
	"too_many_stones:kyanite",
	{cracky = 3},
	{"tms_kyanite.png"},
	"Kyanite Stair",
	"Kyanite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"kyanite_cobble",
	"too_many_stones:kyanite_cobble",
	{cracky = 3},
	{"tms_kyanite_cobble.png"},
	"Cobbled Kyanite Stair",
	"Cobbled Kyanite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"kyanite_brick",
	"too_many_stones:kyanite_brick",
	{cracky = 2},
	{"tms_kyanite_brick.png"},
	"Kyanite Brick Stair",
	"Kyanite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Sugilite
stairs.register_stair_and_slab(
	"sugilite",
	"too_many_stones:sugilite",
	{cracky = 3},
	{"tms_sugilite.png"},
	"Sugilite Stair",
	"Sugilite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"sugilite_cobble",
	"too_many_stones:sugilite_cobble",
	{cracky = 3},
	{"tms_sugilite_cobble.png"},
	"Cobbled Sugilite Stair",
	"Cobbled Sugilite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"sugilite_brick",
	"too_many_stones:sugilite_brick",
	{cracky = 2},
	{"tms_sugilite_brick.png"},
	"Sugilite Brick Stair",
	"Sugilite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Ilvaite
stairs.register_stair_and_slab(
	"ilvaite",
	"too_many_stones:ilvaite",
	{cracky = 3},
	{"tms_ilvaite.png"},
	"Ilvaite Stair",
	"Ilvaite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"ilvaite_cobble",
	"too_many_stones:ilvaite_cobble",
	{cracky = 3},
	{"tms_ilvaite_cobble.png"},
	"Cobbled Ilvaite Stair",
	"Cobbled Ilvaite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"ilvaite_brick",
	"too_many_stones:ilvaite_brick",
	{cracky = 2},
	{"tms_ilvaite_brick.png"},
	"Ilvaite Brick Stair",
	"Ilvaite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Amazonite
stairs.register_stair_and_slab(
	"amazonite",
	"too_many_stones:amazonite",
	{cracky = 3},
	{"tms_amazonite.png"},
	"Amazonite Stair",
	"Amazonite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"amazonite_cobble",
	"too_many_stones:amazonite_cobble",
	{cracky = 3},
	{"tms_amazonite_cobble.png"},
	"Cobbled Amazonite Stair",
	"Cobbled Amazonite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"amazonite_brick",
	"too_many_stones:amazonite_brick",
	{cracky = 2},
	{"tms_amazonite_brick.png"},
	"Amazonite Brick Stair",
	"Amazonite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Marble
stairs.register_stair_and_slab(
	"marble",
	"too_many_stones:marble",
	{cracky = 3},
	{"tms_marble.png"},
	"Marble Stair",
	"Marble Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"marble_cobble",
	"too_many_stones:marble_cobble",
	{cracky = 3},
	{"tms_marble_cobble.png"},
	"Cobbled Marble Stair",
	"Cobbled Marble Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"marble_brick",
	"too_many_stones:marble_brick",
	{cracky = 2},
	{"tms_marble_brick.png"},
	"Marble Brick Stair",
	"Marble Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Rose Quartz
stairs.register_stair_and_slab(
	"rose_quartz",
	"too_many_stones:rose_quartz",
	{cracky = 3},
	{"tms_rose_quartz.png"},
	"Rose Quartz Stair",
	"Rose Quartz Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"rose_quartz_brick",
	"too_many_stones:rose_quartz_brick",
	{cracky = 2},
	{"tms_rose_quartz_brick.png"},
	"Rose Quartz Brick Stair",
	"Rose Quartz Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Blue Granite
stairs.register_stair_and_slab(
	"granite_blue",
	"too_many_stones:granite_blue",
	{cracky = 3},
	{"tms_granite_blue.png"},
	"Blue Granite Stair",
	"Blue Granite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"granite_blue_brick",
	"too_many_stones:granite_blue_brick",
	{cracky = 2},
	{"tms_granite_blue_brick.png"},
	"Blue Granite Brick Stair",
	"Blue Granite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Green Granite
stairs.register_stair_and_slab(
	"granite_green",
	"too_many_stones:granite_green",
	{cracky = 3},
	{"tms_granite_green.png"},
	"Green Granite Stair",
	"Green Granite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"granite_green_brick",
	"too_many_stones:granite_green_brick",
	{cracky = 2},
	{"tms_granite_green_brick.png"},
	"Green Granite Brick Stair",
	"Green Granite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
-- Red Granite
stairs.register_stair_and_slab(
	"granite_red",
	"too_many_stones:granite_red",
	{cracky = 3},
	{"tms_granite_red.png"},
	"Red Granite Stair",
	"Red Granite Slab",
	default.node_sound_stone_defaults(),
	true
)

stairs.register_stair_and_slab(
	"granite_red_brick",
	"too_many_stones:granite_red_brick",
	{cracky = 2},
	{"tms_granite_red_brick.png"},
	"Red Granite Brick Stair",
	"Red Granite Brick Slab",
	default.node_sound_stone_defaults(),
	false
)
end