minetest.register_alias("mapgen_stone", "default:proxima_stone")
minetest.register_alias("mapgen_water_source", "default:mars_stone")

minetest.register_biome({
  name = "Stoneland",
  node_top = "default:proxima_sand",
  depth_top = 1,
  node_filler = "default:proxima_stone",
  depth_filler = 3,
  node_stone = "default:proxima_stone",
  node_riverbed = "default:mars_stone",
  depth_riverbed = 2,
  node_dungeon = "default:mars_stone",
  node_dungeon_stair = "default:mars_stone",
  y_max = 31000,
  y_min = -31000,
  heat_point = 92,
  humidity_point = 16,
})

minetest.register_decoration({
    name = "default:alienflower",
		deco_type = "simple",
		place_on = {"default:proxima_sand"},
    sidelen = 16,
		fill_ratio = 0.0001,
		biomes = {"Stoneland"},
		y_max = 31000,
		y_min = 0,
		decoration = "default:alienflower",
    spawn_by = "air",
	})

minetest.register_decoration({
    name = "default:little_proxima_stone",
    deco_type = "simple",
    place_on = {"default:proxima_sand"},
    sidelen = 4,
    fill_ratio = 0.005,
    biomes = {"Stoneland"},
    y_max = 31000,
    y_min = 0,
    decoration = "default:little_proxima_stone",
})
