Implement Jetpack

api.lua

@@ -113,12 +113,18 @@ end
 -- \returns true if value was successfully added, false otherwise
 industrialtest.api.prepareToolItem=function(itemstack)
 	local def=minetest.registered_tools[itemstack:get_name()]
-	if not def or not def._industrialtest_tool or not def.tool_capabilities or not def.tool_capabilities.uses then
+	if not def then
 		return false
 	end
-	local meta=itemstack:get_meta()
-	meta:set_int("industrialtest.uses",def.tool_capabilities.uses)
-	return true
+	if def._industrialtest_tool and def.tool_capabilities and def.tool_capabilities.uses then
+		local meta=itemstack:get_meta()
+		meta:set_int("industrialtest.uses",def.tool_capabilities.uses)
+		return true
+	elseif def.groups and def.groups._industrialtest_emptyOnConstruct and itemstack:get_wear()==0 then
+		itemstack:set_wear(65534)
+		return true
+	end
+	return false
 end
 -- \brief Adds wear to item after it's use
 -- \param itemstack ItemStack to which wear should be added