编辑“Modifiers”（章节）

=== Hierarchy ===
Most Economic Categories are assigned a ''parent''.  This forms a hierarchical tree out of the modifiers.  Any modifier created for that category or any of its parent categories will then effect the resource cost/production/upkeep of any resources in that block.  For instance, ''planetary buildings'' are usually assigned to the resource category ''planet_buildings'', which is a child of ''planet_structures'' > ''planets'' > ''country''.  So any modifier that starts with ''planet_buildings_xxxx'', ''planet_structures_xxxx'', ''planets_xxx'', or ''country_xxxx'' will effect that building.