opt-depend on default mod

sounds.lua

@@ -0,0 +1,48 @@
+--[[
+More Blocks: sound definitions
+
+Copyright © 2011-2020 Hugo Locurcio and contributors.
+Licensed under the zlib license. See LICENSE.md for more information.
+--]]
+
+function moreblocks.node_sound_wood_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_wood_defaults()
+    end
+end
+
+function moreblocks.node_sound_glass_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_glass_defaults()
+    end
+end
+
+function moreblocks.node_sound_metal_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_metal_defaults()
+    end
+end
+
+function moreblocks.node_sound_stone_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_stone_defaults()
+    end
+end
+
+function moreblocks.node_sound_dirt_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_dirt_defaults()
+    end
+end
+
+function moreblocks.node_sound_leaves_defaults()
+    if minetest.get_modpath("default") then
+        -- default game
+        return default.node_sound_leaves_defaults()
+    end
+end