Default/mapgen: Simplify iron ore registrations

Preserve overlapping registrations of large and small clusters
below y = -64 but now extend the small clusters up to y = 0 (the
previous highest iron ore level) in a similar to way to coal

diff --git a/mods/default/mapgen.lua b/mods/default/mapgen.lua
index dc359a0b59ff2b429a2e4fe17b7b57a688cf6def..89ded047fac1fece146d0bc20f35cedb6b250225 100644 (file)
--- a/mods/default/mapgen.lua
+++ b/mods/default/mapgen.lua
@@ -182,28 +182,6 @@ function default.register_ores()
                y_max          = 31000,
        })
 
-       minetest.register_ore({
-               ore_type       = "scatter",
-               ore            = "default:stone_with_iron",
-               wherein        = "default:stone",
-               clust_scarcity = 12 * 12 * 12,
-               clust_num_ores = 3,
-               clust_size     = 2,
-               y_min          = -15,
-               y_max          = 0,
-       })
-
-       minetest.register_ore({
-               ore_type       = "scatter",
-               ore            = "default:stone_with_iron",
-               wherein        = "default:stone",
-               clust_scarcity = 9 * 9 * 9,
-               clust_num_ores = 5,
-               clust_size     = 3,
-               y_min          = -63,
-               y_max          = -16,
-       })
-
        minetest.register_ore({
                ore_type       = "scatter",
                ore            = "default:stone_with_iron",
@@ -212,7 +190,7 @@ function default.register_ores()
                clust_num_ores = 5,
                clust_size     = 3,
                y_min          = -31000,
-               y_max          = -64,
+               y_max          = 0,
        })
 
        minetest.register_ore({