Fix warnings on undeclared global variables

init.lua

@@ -1,7 +1,7 @@
 local buildPlatform = function(node, pos, itemstack)
 	-- code for the building platforms
-		posZ = {'1', '0', '-1', '-1', '0', '0', '1', '1' };
-		posX = {'0', '-1',  '0', '0', '1', '1', '0', '0' };
+	local posZ = {'1', '0', '-1', '-1', '0', '0', '1', '1' };
+	local posX = {'0', '-1',  '0', '0', '1', '1', '0', '0' };
 
 		for nameCount = 1, 8 do
 			pos.z = pos.z + posZ[nameCount];
@@ -20,8 +20,8 @@ local buildScaffolding = function(node, pos, itemstack, player)
 	-- many thanks to addi for improveing (rewriteing) my crappy code --
 
 	-- code for the building scaffolding
-	height = 0;
-	depth = 0;		-- !!Note!! depth is not needed at the moment
+	local height = 0;
+	local depth = 0;		-- !!Note!! depth is not needed at the moment
 
 
 	--[[ debug stuff ]]
@@ -541,3 +541,5 @@ minetest.register_craft({
 		{'default:steel_ingot', '', ''},
 	}
 })
+
+minetest.log("action", "[scaffolding] loaded.")