Hi, I am folloqing the Verlet tutorials from a Actionscript book, and I want to use that code in Processing, but I am having problems trying to translate the code with the getters and setters

So here is the AS3 code:
Code:

function set vx(value:Number):void {
  _oldX = x - value;
}

function get vx():Number {
  return x - _oldX;
} 

I try different approach and fail, any suggestions?

I am already looking into toxi physics lib, but I still need to follow the book to understand what is going on under the hood

Thanks
rS

Hi Cedric, yes I saw that page but didn't help, as far as I can tell there is no native getters and setter methods in Processing, but there must be a way to work around that

I am working with getVX and setVX, but is not the same, and following the book with those methods is very confusing, and the results are not the same

Cheers
rS

I can confirm that if you want getter and setter methods you can simply write them yourself in your class declaration.  I suspect that the only difference with ActionScript being that the latter expects you to expressly declare that they are getter and setter methods using the 'get' and 'set' keywords before the method/function name.  My guess is that this is required so the compiler can check that they are correctly formed - i.e. that the set method contains a parameter and the get method returns a value...

By default Processing lets you access properties directly i.e. myObject.property so you don't really have to define these methods.  If you want to restrict direct access to properties you'll need to make them private in your class declaration.  I must admit I haven't fully understood the benefit of doing this, but it is meant to be better practice...  probably because you can include validation in your getter/setter methods to ensure properties are set to acceptable values/types.  I'd assume that's most likely to be useful when others write sub-classes based on your class...