[HELP] OOP - new methods and properties

[Kernell]

I'm trying to define custom methods and properties of existing classes.

I do not like to use the variable names with a lowercase letter (I like CamelCase style).

In this article (https://wiki.multitheftauto.com/wiki/OOP) described what properties MTA creates for metatables.

I tried to define their own properties, but this do not work:

  
local ElementMT = debug.getmetatable( Element ); 
  
Element.__get   = -- It's funny that __get table does not exist. 
{ 
    Health  = getElementHealth; 
}; 
  
debug.setmetatable( Element, ElementMT ); 
  

  
local pElement  = Element( "test" ); 
  
pElement.health = 13; -- for testing 
  
outputDebugString( tostring( pElement.Health ) ); -- nil (do not work) 
  

How to make custom properties and methods?

[ixjf]

Take a look at sbx320's classlib.

[Kernell]

No, thanks. I have my own library, with the ability to define custom properties like as C#. I'm interested in the native way of the MTA, without workarounds.

[ixjf]

I'm not telling you to use that library, I mentioned it so you can see how to do it the native way. That's just the way it has to go due to the MTA OOP design.

[Kernell]

I do not see that you use the native OOP from the MTA. I did not even see that you use the override methods and properties as required in the first message.

[Jusonex]

Class information are stored in the Lua registry internally. There are two ways to access __get/__set:

1.) Use the userdata (element) instead of the class:

debug.getmetatable(element) 

2.) Use the registry

local classInfo = debug.getregistry().mt 
local getFunctions = classInfo.Account.__get 

[Kernell]

Did not know about Lua registry. Thank you very much, it really helped me! Issue has been resolved