add pond schematic and chance node

decor.lua

@@ -13,6 +13,15 @@ local function register_decoration(enabled, def)
 	minetest.register_decoration(def)
 end
 
+-- ponds
+
+register_decoration(ethereal.mesa, {
+	place_on = {"group:bakedclay"},
+	sidelen = 32, fill_ratio = 0.003, y_min = 18, y_max = 72,
+	biomes = {"mesa"},
+	decoration = {"ethereal:pond"},
+	spawn_by = "group:bakedclay", num_spawn_by = 8})
+
 -- thin ice
 
 register_decoration(ethereal.frost, {

dirt.lua

@@ -236,31 +236,31 @@ if not minetest.get_modpath("bakedclay") then
 	minetest.register_node(":bakedclay:red", {
 		description = S("Red Baked Clay"),
 		tiles = {"baked_clay_red.png"},
-		groups = {cracky = 3},
+		groups = {cracky = 3, bakedclay = 1},
 		is_ground_content = ethereal.cavedirt,
 		sounds = default.node_sound_stone_defaults()
 	})
 
 	minetest.register_node(":bakedclay:orange", {
 		description = S("Orange Baked Clay"),
 		tiles = {"baked_clay_orange.png"},
-		groups = {cracky = 3},
+		groups = {cracky = 3, bakedclay = 1},
 		is_ground_content = ethereal.cavedirt,
 		sounds = default.node_sound_stone_defaults()
 	})
 
 	minetest.register_node(":bakedclay:grey", {
 		description = S("Grey Baked Clay"),
 		tiles = {"baked_clay_grey.png"},
-		groups = {cracky = 3},
+		groups = {cracky = 3, bakedclay = 1},
 		is_ground_content = ethereal.cavedirt,
 		sounds = default.node_sound_stone_defaults()
 	})
 
 	minetest.register_node(":bakedclay:brown", {
 		description = S("Brown Baked Clay"),
 		tiles = {"baked_clay_brown.png"},
-		groups = {cracky = 3},
+		groups = {cracky = 3, bakedclay = 1},
 		is_ground_content = ethereal.cavedirt,
 		sounds = default.node_sound_stone_defaults()
 	})

schematics/pond.lua

@@ -0,0 +1,95 @@
+
+local _ = {name = "air", param1 = 0}
+local a = {name = "air", param1 = 255, force_place = true}
+local w = {name = "default:river_water_source", param1 = 255, force_place = true}
+local C = {name = "default:clay", param1 = 255, force_place = true}
+local D = {name = "default:dirt", param1 = 255, force_place = true}
+local M = {name = "default:mossycobble", param1 = 127, force_place = true}
+local e = {name = "ethereal:bush2", param1 = 127, force_place = true}
+local f = {name = "default:fern_1", param1 = 127, force_place = true}
+local g = {name = "default:fern_2", param1 = 127, force_place = true}
+local h = {name = "default:fern_3", param1 = 127, force_place = true}
+local i = {name = "default:grass_4", param1 = 127, force_place = true}
+
+
+ethereal.pond = {
+
+	size = {x = 12, y = 4, z = 15},
+
+	data = {
+
+	_,_,_,_,_,_,_,_,_,_,_,_,	_,_,_,_,D,D,D,D,_,_,_,_,	_,_,_,_,f,g,i,f,e,_,_,_,
+			_,_,_,_,a,a,a,a,_,_,_,_,
+	_,_,_,_,_,C,C,_,_,_,_,_,	_,_,D,D,M,w,w,D,M,_,_,_,	_,_,f,g,a,a,a,a,a,a,_,_,
+			_,_,a,a,a,a,a,a,a,_,_,_,
+	_,_,_,C,C,C,C,C,_,_,_,_,	_,M,D,w,w,w,w,w,D,D,_,_,	_,_,f,a,a,a,a,a,g,i,_,_,
+			_,a,a,a,a,a,a,a,a,a,_,_,
+	_,_,_,C,C,C,C,C,C,C,_,_,	_,D,D,w,w,w,w,w,w,w,M,_,	e,i,a,a,a,a,a,a,a,a,_,_,
+			a,a,a,a,a,a,a,a,a,a,a,_,
+	_,_,_,C,C,C,C,C,C,C,_,_,	M,D,M,w,w,w,w,w,w,w,D,_,	_,f,a,a,a,a,a,a,a,a,g,_,
+			a,a,a,a,a,a,a,a,a,a,a,_,
+	_,_,C,C,C,C,C,C,C,C,_,_,	D,D,w,w,w,w,w,w,w,w,D,D,	e,i,a,a,a,a,a,a,a,a,h,i,
+			a,a,a,a,a,a,a,a,a,a,a,a,
+	_,C,C,C,C,C,C,C,C,C,C,_,	D,w,w,w,w,w,w,w,w,w,w,D,	h,a,a,a,a,a,a,a,a,a,a,f,
+			a,a,a,a,a,a,a,a,a,a,a,a,
+	_,C,C,C,C,C,C,C,C,C,C,_,	D,w,w,w,w,w,w,w,w,w,w,M,	g,a,a,a,a,a,a,a,a,a,a,_,
+			a,a,a,a,a,a,a,a,a,a,a,a,
+	_,C,C,C,C,C,C,C,C,C,C,_,	D,w,w,w,w,w,w,w,w,w,w,D,	f,a,a,a,a,a,a,a,a,a,a,i,
+			a,a,a,a,a,a,a,a,a,a,a,a,
+	_,_,C,C,C,C,C,C,C,C,_,_,	_,D,w,w,w,w,w,w,w,w,D,M,	i,f,a,a,a,a,a,a,a,a,g,_,
+			a,a,a,a,a,a,a,a,a,a,a,a,
+	_,_,C,C,C,C,C,C,C,C,_,_,	_,D,w,w,w,w,w,w,w,w,D,_,	_,i,a,a,a,a,a,a,a,a,a,_,
+			_,a,a,a,a,a,a,a,a,a,a,_,
+	_,_,C,C,C,C,C,C,C,_,_,_,	D,D,w,w,w,w,w,w,w,D,D,_,	g,h,a,a,a,a,a,a,a,a,f,i,
+			a,a,a,a,a,a,a,a,a,a,a,_,
+	_,_,C,C,C,C,C,C,_,_,_,_,	D,D,w,w,w,w,w,w,D,D,_,_,	_,e,g,a,a,a,a,a,a,g,e,_,
+			a,a,a,a,a,a,a,a,a,a,_,_,
+	_,_,_,C,C,C,C,_,_,_,_,_,	_,M,D,w,w,w,w,D,M,_,_,_,	_,_,i,a,a,a,a,a,a,a,_,_,
+			_,a,a,a,a,a,a,a,a,_,_,_,
+	_,_,_,_,_,_,_,_,_,_,_,_,	_,_,D,D,D,D,D,D,D,_,_,_,	_,_,e,f,i,g,g,i,h,_,_,_,
+			_,_,a,a,a,a,a,a,a,_,_,_,
+
+	}
+}
+
+minetest.register_node("ethereal:pond", {
+	paramtype = "light",
+	sunlight_propagetes = true,
+	walkable = false, pointable = false, diggable = false, floodable = false,
+	drawtype = "airlike",
+	drops = "",
+	groups = {not_in_creative_inventory = 1},
+	on_blast = function() end,
+})
+
+local math_random = math.random
+local replace_with = {
+	"air", "air", "air", "air", "default:dry_grass_2", "default:dry_shrub",
+	"default:grass_2", "default:fern_1", "air", "air", "default:dry_shrub"}
+
+minetest.register_abm({
+	label = "Ethereal pond",
+	nodenames = {"ethereal:pond"},
+	interval = 5,
+	chance = 1,
+	action = function(pos, node)
+
+		minetest.swap_node(pos, {name = replace_with[math_random(#replace_with)]})
+
+		local radius = 7
+
+		pos.y = pos.y - 1
+
+		local num = #minetest.find_nodes_in_area(
+				{x = pos.x - radius, y = pos.y, z = pos.z - radius},
+				{x = pos.x + radius, y = pos.y, z = pos.z + radius}, "group:bakedclay")
+
+		if num > 200 then
+
+			pos.y = pos.y - 1
+
+			minetest.place_schematic(pos, ethereal.pond, "random", nil, false,
+					"place_center_x, place_center_z")
+		end
+	end
+})

schems.lua

@@ -32,6 +32,7 @@ dofile(path .. "olive_tree.lua")
 dofile(path .. "basandra_bush.lua")
 dofile(path .. "desertstone_spike.lua")
 dofile(path .. "desertstone_under_spike.lua")
+dofile(path .. "pond.lua")
 
 -- register decoration helper