Version 4.0 Beta

Complete overhaul of the lake generator, much more efficient now.
Sandstone biome added, look for it in low humidity areas.  Heaven biome
implementation started, uncomment the code to preview.

functions.lua

@@ -25,6 +25,29 @@ function skylands:appletree(x, y, z, area, data)
 	end
 end
 
+function skylands:goldentree(x, y, z, area, data)
+
+	local c_tree = minetest.get_content_id("default:tree")
+	local c_gapple = minetest.get_content_id("skylands:golden_apple")
+	local c_gleaves = minetest.get_content_id("skylands:golden_leaves")
+	for j = -2, 4 do
+		if j >= 1 then
+			for i = -2, 2 do
+			for k = -2, 2 do
+				local vi = area:index(x + i, y + j + 1, z + k)
+				if math.random(48) == 2 then
+					data[vi] = c_gapple
+				elseif math.random(3) ~= 2 then
+					data[vi] = c_gleaves
+				end
+			end
+			end
+		end
+		local vi = area:index(x, y + j, z)
+		data[vi] = c_tree
+	end
+end
+
 function skylands:grass(data, vi)
 	local c_grass1 = minetest.get_content_id("default:grass_1")
 	local c_grass2 = minetest.get_content_id("default:grass_2")