How can I combine two objects of different subclasses into the property of another class?

Question

Ignacio Estaún 2018-5-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402419-how-can-i-combine-two-objects-of-different-subclasses-into-the-property-of-another-class

评论： Ignacio Estaún 2018-5-25

Hello,

I explain the example so that it is better understood: I have a "board" class with a "player" attribute. This attribute is a list of different objects of the "human player" class. If I want to add to this list "player" objects of the class "player cpu" I get an error.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Benjamin Kraus 2018-5-24

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402419-how-can-i-combine-two-objects-of-different-subclasses-into-the-property-of-another-class#answer_321842

Your classes need to derive from the matlab.mixin.Heterogeneous class.

Specifically, your player class needs to derive from matlab.mixin.Heterogeneous. Then, as long as all your other player classes derive from your main player base class, you should be all set.

Check out this documentation page for more details: Designing Heterogeneous Class Hierarchies

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

Ignacio Estaún 2018-5-25

Thanks, it worked perfectly!

请先登录，再进行评论。

Answer 2

Philip Borghesani 2018-5-24

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/402419-how-can-i-combine-two-objects-of-different-subclasses-into-the-property-of-another-class#answer_321837

Two ways to do this:

Make player a cell array instead of an array of of human players. This is the simplest solution but may not be the best in the long run.
Derive "human player" and "player cpu" from a common base class that is heterogeneous