Add MesaBryce biome

mods/MAPGEN/mcl_biomes/init.lua

@@ -62,7 +62,6 @@ local function register_biomes()
 	Intentionally missing biomes:
 	* River (generated by valleys and v7)
 	* Frozen River (generated by valleys and v7)
-	* Mesa Bryce (oddities of terrain generator might generate this by chance, esp. v7)
 	* Hills biomes (shape only)
 	* Plateau (shape only)
 	* Plateau M (shape only)
@@ -109,6 +108,7 @@ local function register_biomes()
 		"Savanna",
 		"SavannaM",
 		"Mesa",
+		"MesaBryce",
 		"MesaPlateauF",
 		"MesaPlateauFM",
 	}
@@ -793,6 +793,52 @@ local function register_biomes()
 		heat_point = 100,
 	})
 
+	-- Mesa Bryce: Variant of Mesa, but without the red sand desert
+	minetest.register_biome({
+		name = "MesaBryce",
+		node_top = "mcl_colorblocks:hardened_clay",
+		depth_top = 1,
+		node_filler = "mcl_colorblocks:hardened_clay",
+		node_riverbed = "mcl_colorblocks:hardened_clay",
+		depth_riverbed = 1,
+		node_stone = "mcl_colorblocks:hardened_clay",
+		y_min = 0,
+		y_max = mcl_vars.mg_overworld_max,
+		humidity_point = -4,
+		heat_point = 100,
+	})
+	-- Helper biome for the red sand at the bottom of Mesas.
+	minetest.register_biome({
+		name = "MesaBryce_sandlevel",
+		node_top = "mcl_core:redsand",
+		depth_top = 1,
+		node_filler = "mcl_colorblocks:hardened_clay_orange",
+		depth_filler = 3,
+		node_riverbed = "mcl_colorblocks:hardned_clay",
+		depth_riverbed = 1,
+		node_stone = "mcl_colorblocks:hardened_clay_orange",
+		y_min = -4,
+		y_max = -1,
+		humidity_point = -4,
+		heat_point = 100,
+	})
+	minetest.register_biome({
+		name = "MesaBryce_ocean",
+		node_top = "mcl_core:sand",
+		depth_top = 3,
+		node_filler = "mcl_core:sand",
+		depth_filler = 2,
+		node_riverbed = "mcl_core:sand",
+		depth_riverbed = 2,
+		y_min = OCEAN_MIN,
+		y_max = -5,
+		vertical_blend = 1,
+		humidity_point = -4,
+		heat_point = 100,
+	})
+
+
+
 	-- Mesa Plateau F
 	-- Identical to Mesa below Y=30. At Y=30 and above there is an oak forest
 	minetest.register_biome({
@@ -1344,6 +1390,7 @@ local function register_biome_ores()
 			y_min          = mcl_worlds.layer_to_y(32),
 			y_max          = mcl_worlds.layer_to_y(79),
 			biomes         = { "Mesa", "Mesa_sandlevel", "Mesa_ocean",
+					"MesaBryce", "MesaBryce_sandlevel", "MesaBryce_ocean",
 					"MesaPlateauF", "MesaPlateauF_sandlevel", "MesaPlateauF_ocean",
 					"MesaPlateauFM", "MesaPlateauFM_sandlevel", "MesaPlateauFM_ocean", },
 		})
@@ -1484,6 +1531,7 @@ local function register_biomelike_ores()
 		stratum_thickness = 8,
 		biomes = {
 			"Mesa_sandlevel", "Mesa_ocean",
+			"MesaBryce_sandlevel", "MesaBryce_ocean",
 			"MesaPlateauF_sandlevel", "MesaPlateauF_ocean",
 			"MesaPlateauFM_sandlevel", "MesaPlateauFM_ocean",
 		},
@@ -1510,7 +1558,7 @@ local function register_biomelike_ores()
 			wherein = {"mcl_colorblocks:hardened_clay"},
 			y_min = y_min,
 			y_max = y_max,
-			biomes = { "Mesa", "MesaPlateauF" },
+			biomes = { "Mesa", "MesaPlateauF", "MesaBryce" },
 		})
 		-- Eroded stratum
 		minetest.register_ore({
@@ -3262,7 +3310,7 @@ local function register_decorations()
 		},
 		y_min = 4,
 		y_max = mcl_vars.mg_overworld_max,
-		biomes = {"Desert", "Mesa", "Mesa_sandlevel", "MesaPlateauF", "MesaPlateauF_sandlevel", "MesaPlateauF_grasstop", "Taiga", "MegaTaiga"},
+		biomes = {"Desert", "Mesa", "Mesa_sandlevel", "MesaPlateauF", "MesaPlateauF_sandlevel", "MesaPlateauF_grasstop","MesaBryce","Taiga", "MegaTaiga"},
 		decoration = "mcl_core:deadbush",
 		height = 1,
 	})