Add more things

mods/rgt_outback/init.lua

@@ -127,20 +127,20 @@ function rgt.add_tree(pos)
     vm:write_to_map()
 end
 
-rgt.register_node("tree", {
-    on_place = function(s, p, pt)
-        --rgt.add_tree(pt.above)
-        minetest.spawn_tree(pt.above, {
-            axiom = "TTTTTT",
-            trunk = "spruce_planks",
-            leaves = "oak_planks"
-        })
-    end
-})
-
 rgt.register_node("outback_planks", {
     tiles = {"rgt_outback_planks.png"},
     groups = {hand_breakable = 3}
 })
 
+
+rgt.register_node("dirt_stony", {
+    tiles = {"rgt_dirt_stony.png", "rgt_dirt.png"},
+    groups = {hand_breakable = 3}
+})
+
+rgt.register_node("cobble_mossy", {
+    tiles = {"rgt_cobble_mossy.png"},
+    groups = {hand_breakable = 3}
+})
+
 minetest.register_mapgen_script(minetest.get_modpath(minetest.get_current_modname()).."/mapgen.lua")

mods/rgt_outback/mapgen.lua

@@ -14,7 +14,11 @@ end
 local c_air = minetest.get_content_id("air")
 
 local c_stone = minetest.get_content_id("stone")
+local c_cobble = minetest.get_content_id("cobble")
+local c_mossy_cobble = minetest.get_content_id("cobble_mossy")
 local c_dirt = minetest.get_content_id("dirt")
+local c_stony_dirt = minetest.get_content_id("dirt_stony")
+local c_mossy_dirt = minetest.get_content_id("dirt_mossy")
 local c_grass = minetest.get_content_id("dirt_grass")
 
 local c_planks = minetest.get_content_id("outback_planks")
@@ -32,6 +36,16 @@ local np_terrain = {
 }
 local n_terrain = {}
 
+local np_surface = {
+    offset = 0,
+    scale = 1, -- Small height variation
+    spread = {x = 4, y = 4, z = 4},
+    seed = 87745,
+    octaves = 3 ,
+    persist = 0.6
+}
+local n_surface = {}
+
 local np_trees = {
     offset = 0,
     scale = 1, -- Small height variation
@@ -160,6 +174,7 @@ local function tree(min, max, x, y, z)
     
 end
 
+
 minetest.register_on_generated(function(vm, min, max)
     -- Only run for blocks that are part of this realm.
     if not intersection(min, max, REALM_START, REALM_END) then return end
@@ -170,6 +185,9 @@ minetest.register_on_generated(function(vm, min, max)
     local terrain = minetest.get_perlin_map(np_terrain, sides2d)
     terrain:get_2d_map_flat({x = min.x, y = min.z}, n_terrain)
     
+    local surface = minetest.get_perlin_map(np_surface, sides2d)
+    surface:get_2d_map_flat({x = min.x, y = min.z}, n_surface)
+    
     local trees_map = minetest.get_perlin_map(np_trees, sides2d)
     trees_map:get_2d_map_flat({x = min.x, y = min.z}, n_trees)
     
@@ -188,7 +206,17 @@ minetest.register_on_generated(function(vm, min, max)
                     if y < height -1 then
                         vm_data[vi] = c_stone
                     elseif y < height then
-                        vm_data[vi] = c_grass
+                        if n_surface[ni] > 0.65 then
+                            vm_data[vi] = c_mossy_cobble
+                        elseif n_surface[ni] > 0.3 then
+                            vm_data[vi] = c_cobble
+                        elseif n_surface[ni] > -0.3 then
+                            vm_data[vi] = c_stony_dirt
+                        elseif n_surface[ni] < -0.8 then
+                            vm_data[vi] = c_mossy_dirt
+                        else
+                            vm_data[vi] = c_dirt
+                        end
                     elseif y < height +1 and math.random() > 0.98 then
                         trees[#trees +1] = vector.new(x, y, z)
                     else