[Solved] Mersenne Twister, and importing Java class

Wild_Doogy

Hey guys, I am trying to find an implementation of the Mersenne Twister algorithm in Processing. I found this site: http://wiki.processing.org/w/Mersenne_Twister

but the project appears to be dead.

I found the original source for the project here: http://www.cs.gmu.edu/~sean/research/mersenne/MersenneTwisterFast.java

I am wondering if there is a way for me to load the java class into processing.

Any help would be appreciated.

~Ben

PhiLho

Just paste the .java file in the sketch, it will appear as a tab in Processing.

You have to remove any package definition that can be at the top of the file.

Wild_Doogy

I pasted the .java file in, and even after changing the classes from private to public, it is still failing to run. The error is:

Usage: PApplet For additional options, see the Javadoc for PApplet Could not run the sketch (Target VM failed to initialize). For more information, read revisions.txt and Help ? Troubleshooting.

This might not be the best way to do this project.

PhiLho

Of course, you need to have a .pde file too, with the setup() and (optionally) draw() methods, that creates an instance of the class in the .java file and uses it...

Wild_Doogy

I should have mentioned that I did all that, let me try with a bare minimum sketch.

Ok, so I just figured it out:

You need to have one class per file, and the filename needs to be the same as the class name, Then you can get an instance in a sketch like this:

myClass MC1 = new myClass.someInitFunction(); myClass MC2 = new myClass.someInitFunction();

and then you can use them

print(MC1.mySuperAwesomeFunction());

Also, in my instance I had to change all the private declarations (?) to public for it to compile.

Wild_Doogy

I just put the finished library up on github, with an example:

https://github.com/WildDoogyPlumb/Mersenne-Twister/tree/master/MTTest