《星际争霸》的角色设计设计各类种族：

所有种族共有方法接口：

方法—fight, move

Terran特有方法接口：方法—repair

Zerg特有方法接口：方法—recover

Creature抽象类：属性—life；方法—fight（有具体实现）

　　　　Terran具体类（还有其他特有属性与方法）

Zerg具体类（还有其他特有属性与方法）另外，XRace种族类方法接口：repair，recover

XRace具体类（还有其他特有属性与方法）-"StarCraft" role design and design all kinds of race:

There are all races interface methods:

Methods-fight, move

Terran unique interface methods: Method-repair

Zerg unique interface methods: Method-recover

Creature abstract class: Attribute-life　method-fight (concrete realization)

Terran specific class (there are other unique attributes and methods)

Zerg concrete class (there are other unique attributes and methods) In addition, XRace race class method interfaces: repair, recover

XRace specific class (there are other unique attributes and methods)