PyuTestCore.make_ore = function (id, desc, ifix, idfix, btxt, itxt, color, y_max, scarcity, count, btype)
  local oid = "pyutest_core:"..id.."_ore"
  local iid = "pyutest_core:"..id.."_"..ifix
  local block_type = btype ~= nil and btype or PyuTestCore.BLOCK_BREAKABLE_MIDDLE

  minetest.register_node(oid, {
    description = Translate(desc .. " Ore"),
    groups = {block = block_type},
    tiles = {btxt},
    drop = iid .. " " .. tostring(count or 1),
    sounds = PyuTestCore.make_node_sounds(),
    light_source = 3.9, -- Make ores emit little light
  })

  minetest.register_craftitem(iid, {
    description = Translate(desc .. " " .. idfix),
    inventory_image = itxt,
    wield_image = itxt,
    color = color
  })

  minetest.register_ore({
    ore_type = "scatter",
    ore = oid,
    wherein = "pyutest_core:stone_block",
    clust_scarcity = scarcity * scarcity * scarcity, -- I spent 1 hour debugging this just because I mispelled scarcity as scarity :sob:
    clust_num_ores = 5,
    clust_size = 3,
    y_max = y_max,
    y_min = PyuTestCore_WorldBottom,
    biomes = PyuTestCore.BIOMES,
  })

  PyuTestCore.make_building_blocks(id, desc, {"metal.png"}, color, {
    block = block_type
  })

  local bid = "pyutest_core:"..id.."_block"
  minetest.register_craft({
    output = bid,
    recipe = {
      {iid, iid},
      {iid, iid}
    }
  })

  minetest.register_craft({
    output = iid .. " 4",
    recipe = {
      bid
    },
    type = "shapeless"
  })
end


PyuTestCore.make_ore("coal", "Coal", "lump", "Lump", "ore-coal.png", "lump.png", {r = 32, g = 32, b = 32}, 48, 8, 5)
PyuTestCore.make_ore("iron", "Iron", "ingot", "Ingot", "ore-iron.png", "ingot.png", nil, 21, 12, 4)
PyuTestCore.make_ore("gold", "Gold", "ingot", "Ingot", "ore-gold.png", "ingot.png", "gold", -50, 14.5, 3, PyuTestCore.BLOCK_BREAKABLE_LONG)
PyuTestCore.make_ore("diamond", "Diamond", "shard", "Shard", "ore-diamond.png", "shard.png", "cyan", -60, 15.7, 3, PyuTestCore.BLOCK_BREAKABLE_LONG)
PyuTestCore.make_ore("emerald", "Emerald", "shard", "Shard", "ore-emerald.png", "shard.png", "seagreen", -110, 17.3, 1, PyuTestCore.BLOCK_BREAKABLE_LONG)