tons of small changes, and added a chaparral biome and more dry stuff

minetest.conf

@@ -75,5 +75,5 @@ water_level = 0
 
 # i don't really know what these numbers change, but whatever :)
 # offset, scale, (spread factors), seed offset, number of octaves, persistence, lacunarity.
-mg_biome_np_humidity = 50, 20, (600, 850, 600), 31478, 3, 0.5, 2.0
-mgv7_np_terrain_base = 10, 30, (750, 1500, 750), 88533, 8, 0.65, 2, 2
+mg_biome_np_humidity = 50, 20, (600, 850, 600), 31478, 2, 0.5, 2.0
+mgv7_np_terrain_base = 10, 30, (750, 1500, 750), 88533, 6, 0.65, 2, 2

mods/default/mapgen.lua

@@ -125,7 +125,7 @@ minetest.register_biome(
       depth_filler = 6,
       depth_top = 1,
 
-      y_min = 2,
+      y_min = 10,
       y_max = 50,
 
       heat_point = 30,
@@ -166,6 +166,23 @@ minetest.register_biome(
       humidity_point = 35,
    })
 
+minetest.register_biome(
+   {
+      name = "Chaparral",
+
+      node_top = "default:dirt_with_dry_grass",
+      node_filler = "default:dirt",
+
+      depth_filler = 0,
+      depth_top = 1,
+
+      y_min = 56,
+      y_max = 32000,
+
+      heat_point = 60,
+      humidity_point = 30,
+   })
+
 minetest.register_biome(
    {
       name = "Savanna",
@@ -176,11 +193,11 @@ minetest.register_biome(
       depth_filler = 2,
       depth_top = 1,
 
-      y_min = 0,
-      y_max = 32000,
+      y_min = 1,
+      y_max = 55,
 
       heat_point = 60,
-      humidity_point = 30,
+      humidity_point = 25,
    })
 
 minetest.register_biome(
@@ -193,7 +210,7 @@ minetest.register_biome(
       depth_filler = 8,
       depth_top = 3,
 
-      y_min = 0,
+      y_min = 1,
       y_max = 32000,
 
       heat_point = 70,
@@ -229,7 +246,7 @@ minetest.register_biome(
       depth_top = 1,
 
       y_min = -32000,
-      y_max = -1,
+      y_max = 0,
 
       heat_point = 60,
       humidity_point = 30,
@@ -346,7 +363,7 @@ minetest.register_decoration(
       place_on = "default:dirt_with_dry_grass",
       sidelen = 16,
       fill_ratio = 0.07,
-      biomes = {"Desert", "Savanna"},
+      biomes = {"Desert", "Savanna", "Chaparral"},
       decoration = {"default:dry_grass"},
       y_min = 10,
       y_max = 500,
@@ -432,4 +449,36 @@ minetest.register_decoration(
       rotation = "random",
    })
 
+-- Shrubs
+
+minetest.register_decoration(
+   {
+      deco_type = "schematic",
+      place_on = {"default:dirt_with_dry_grass"},
+      sidelen = 16,
+      fill_ratio = 0.005,
+      biomes = {"Savanna", "Chaparral"},
+      flags = "place_center_x, place_center_z",
+      replacements = {["default:leaves"] = "default:dry_leaves"},
+      schematic = minetest.get_modpath("default").."/schematics/default_shrub.mts",
+      y_min = 3,
+      y_max = 32000,
+      rotation = "0",
+   })
+
+minetest.register_decoration(
+   {
+      deco_type = "schematic",
+      place_on = {"default:dirt_with_dry_grass"},
+      sidelen = 16,
+      fill_ratio = 0.06,
+      biomes = {"Chaparral"},
+      flags = "place_center_x, place_center_z",
+      replacements = {["default:leaves"] = "default:dry_leaves"},
+      schematic = minetest.get_modpath("default").."/schematics/default_bush.mts",
+      y_min = -32000,
+      y_max = 32000,
+      rotation = "0",
+   })
+
 default.log("mapgen", "loaded")

mods/default/nodes.lua

@@ -430,6 +430,32 @@ minetest.register_node(
       sounds = default.node_sound_leaves_defaults(),
    })
 
+minetest.register_node(
+   "default:dry_leaves",
+   {
+      description = "Dry Leaves",
+      drawtype = "allfaces_optional",
+      visual_scale = 1.3,
+      tiles ={"default_dry_leaves.png"},
+      paramtype = "light",
+      waving = 1,
+      is_ground_content = false,
+      groups = {snappy=3, leafdecay=3, fall_damage_add_percent=-20, leaves = 1},
+      drop = {
+	 max_items = 1,
+	 items = {
+	    {
+	       items = {"default:dry_leaves"},
+	    },
+	    {
+	       items = {"default:dry_grass"},
+	       rarity = 6,
+	    }
+	 }
+      },
+      sounds = default.node_sound_leaves_defaults(),
+   })
+
 minetest.register_node(
    "default:cactus",
    {