Extension to a class (GrayScott)

Contributed Library Questions

jojoj0

Extension to a class (GrayScott)

in Contributed Library Questions • 2 years ago

Hi all,

I have a question in regards to extending a class, GrayScott in particular.

I want to extend this class and override method getFCoeffAt.

I want to have it respond to the x coordinates instead of just drawing from a universal integer.

How do I do that?

Not very experienced at this, but still wanting to give it a go.

Here's an attempt at trying to extend it.

Many thanks!

class JoScott extends toxi.sim.grayscott.GrayScott {
int xf = width/2;
int yf = height/2;
//int f= xcoord;
JoScott(int width, int height, boolean wrap) {
super(width, height, wrap);

float xfcof getFCoeffAt( xf, yf) {
return f*xf;
}
float getFOverride(int xf, int yf){
   return this.getFCoeffAt(x,y);

   }
}
}

Replies(3)

PhiLho

Re: Extension to a class (GrayScott)

2 years ago

No need to declare a constructor if it does the same thing than the original one. Beside, the closing brace must be after super: you cannot nest methods in Java.
The declaration of getFCoeffAt is all wrong...

I don't know what the xfcof word does there, and you need to put the type of the parameters.

And perhaps you need to declare the overridden methods as public: you cannot decrease the visibility of methods.

jojoj0

Re: Re: Extension to a class (GrayScott)

2 years ago

Thanks for your time.

Yea, I think there are a number of problems that i look again.

Don't worry about it as I'm trying out different solutions without the use of extending the class.

Thanks for your time though.

toxmeister

Re: Extension to a class (GrayScott)

2 years ago

Have a look at the GrayScottCustom example which is bundled with the library in the simutils examples folder:

Source also here:

http://hg.postspectacular.com/toxiclibs/src/tip/examples/sim/GrayScottCustom/GrayScottCustom.pde#cl-88

You're very close with your solution already...

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