Parsing resource costs

src/engine/objects/ItemTemplate.java

@@ -353,7 +353,7 @@ public class ItemTemplate {
             if (resource_costs.isEmpty() == false)
                 for (Object o : resource_costs) {
                     JSONObject resource_entry = (JSONObject) o;
-                    Enum.ResourceType resource_type = Enum.ResourceType.valueOf((String) resource_entry.get("resource_type"));
+                    Enum.ResourceType resource_type = Enum.ResourceType.valueOf(((String) resource_entry.get("resource_type")).toUpperCase());
                     int resource_value = ((Long) resource_entry.get("resource_value")).intValue();
                     item_resource_cost.put(resource_type, resource_value);
                 }