/// <param name="key">the key used for this category</param>
/// <param name="icon">the icon to be used for the research category tab</param>
public static void RegisterCategory(Mod mod, string key, string icon)
{
if (!researchCategories.ContainsKey(key))
{
ResearchCategory category = new ResearchCategory(mod, key, icon);
researchCategories[key] = category;
}
}
public static void AddResearch(ModResearch item)
{
ResearchCategory category = GetCategory(item.category);
if (category != null && !category.research.ContainsKey(item.Name))
{
category.research[item.Name] = item;
}
}