added reddish streaks

mapgen.lua

@@ -5,8 +5,8 @@ minetest.override_item("default:mossycobble", {tiles = {"default_ice.png"}})
 
 	minetest.register_biome({
 		name = "ice_crust",
-		node_dust = "default:gravel",
-		node_top = "default:ice",
+		--node_dust = "default:gravel",
+		node_top = "default:gravel",
 		depth_top = 1,
 		node_filler = "default:ice",
 		depth_filler = 3,
@@ -74,3 +74,27 @@ minetest.override_item("default:mossycobble", {tiles = {"default_ice.png"}})
 		heat_point = 100,
 		humidity_point = 0,
 	})
+	
+--creates the reddish streaks (not perfect yet, WIP)
+	minetest.register_ore({
+		ore_type       = "vein",
+		ore            = "europa_moon:red_rocks",
+		wherein        = "default:gravel",
+		--clust_scarcity = 9 * 9 * 9,
+		--clust_num_ores = 12,
+		--clust_size     = 3,
+		y_min          = -1033,
+		y_max          = 200,
+		biomes         = {"ice_crust"},
+		noise_threshold = 0.5,
+		noise_params = {
+            offset = 0,
+            scale = 1,
+            spread = {x = 100, y = 100, z = 100},
+            seed = 23,
+            octaves = 3,
+            persist = 0.7
+		},
+		random_factor = 0.01, --1.0,
+	})
+