Dungeons generate less aggressively now

mods/MAPGEN/mcl_dungeons/init.lua

@@ -191,9 +191,12 @@ minetest.register_on_generated(function(minp, maxp)
 			local chestSlotCounter = 1
 			for tx = x, maxx do
 				for tz = z, maxz do
-
 					for ty = y, maxy do
 						local p_pos = area:index(tx, ty, tz)
+
+						-- Do not overwrite nodes with is_ground_content == false (e.g. bedrock)
+						local name = minetest.get_name_from_content_id(data[p_pos])
+						if minetest.registered_nodes[name].is_ground_content then
 							-- Floor
 							if ty == y then
 								if math.random(1,4) == 1 then
@@ -229,6 +232,8 @@ minetest.register_on_generated(function(minp, maxp)
 								end
 							end
 						end
+
+					end
 				end
 			end
 		end