Improved Random Number Generator

These are some methods for generating randomness.
There is:

• A plain copy of processings random() function which is just as fast
• A simple array shuffler
• An integer-RNG which doesn’t produce the same number twice in a row
• A method to return a random entry of an array of arbitrary data-type with probability weights (not using Alias)
• A sophisticated RNG to return a random float between 0 and 1 with its selection weighted by a given probability curve defined by vectors

The last part is the coolest, but also very esoteric and WIP.
This animation shows its function: