floatland - only works with mg7 cos floatlands

mods/fireflies/init.lua

@@ -5,7 +5,7 @@ local m_eth = minetest.get_modpath("ethereal")
 -- detecting cretive engine over creative privilegies
 local m_cre = minetest.get_modpath("creative")
 -- check recent versions
-local is_55 = has_feature("dynamic_add_media_table")
+local is_55 = minetest.has_feature("dynamic_add_media_table")
 
 -- firefly 
 minetest.register_node("fireflies:firefly", {

mods/floatland/init.lua

@@ -1,6 +1,7 @@
 -- minetest.clear_registered_biomes() -- do not regenerate, we want to combine it!
 
 -- Get setting or default
+local mgv = minetest.get_mapgen_setting("mg_name") or nil
 local mgv7_spflags = minetest.get_mapgen_setting("mgv7_spflags") or "mountains, ridges, floatlands, caverns"
 local captures_float = string.match(mgv7_spflags, "floatlands")
 local captures_nofloat = string.match(mgv7_spflags, "nofloatlands")
@@ -14,7 +15,7 @@ default.mgv7_floatland_level = floatland_y
 default.mgv7_shadow_limit = minetest.get_mapgen_setting("mgv7_shadow_limit") or 1024
 
 -- Registering of the nodes
-
+if mgv7 then
 minetest.register_node("floatland:grass", {
 	description = "High Grass",
 	tiles = {"floatland_realm_grass.png", "floatland_realm_dirt.png",
@@ -151,3 +152,4 @@ minetest.register_decoration({
 	y_max = worldlimit,
 	decoration = "default:bush_sapling",
 })
+end