ZScript extend clarification

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SuaveSteve
Posts: 72
Joined: Sat Jul 05, 2014 7:38 am

ZScript extend clarification

Post by SuaveSteve »

ZScript supports inheritance just like DECORATE does, but what exactly is the difference with the extend keyword?
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_mental_
 
 
Posts: 3800
Joined: Sun Aug 07, 2011 4:32 am

Re: ZScript extend clarification

Post by _mental_ »

Like the name implies extend allows to add functions to already existing class without altering its definition.
It’s possible to define a class in multiple files for example. This feature has nothing to do with inheritance.
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SuaveSteve
Posts: 72
Joined: Sat Jul 05, 2014 7:38 am

Re: ZScript extend clarification

Post by SuaveSteve »

And what's the difference between that and inheriting and replacing a class?
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_mental_
 
 
Posts: 3800
Joined: Sun Aug 07, 2011 4:32 am

Re: ZScript extend clarification

Post by _mental_ »

Check extension of StateProvider class for almost every weapon in GZDoom core ZScript lumps.
How do you suppose to achieve this with class replacement?
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