Package squidpony.squidmath

Interface FlawedPointHash

All Superinterfaces:

IFlawed, IPointHash

All Known Implementing Classes:

FlawedPointHash.CubeHash, FlawedPointHash.FNVHash, FlawedPointHash.QuiltHash, FlawedPointHash.RugHash

@Beta
public interface FlawedPointHash
extends IPointHash, IFlawed

An interface for point hashes that are statistically biased, as well as a holder for inner classes that implement this. The point hashes here are mostly chosen because they are aesthetically interesting, at least on some of their output bits.
Don't count on this class giving reliable output; it is marked Beta and will remain so. If you want to ensure a particular behavior of a FlawedPointHash can be replicated, copy the implementation into your own code.
Created by Tommy Ettinger on 4/14/2020.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static class	FlawedPointHash.CubeHash	Very similar to FlawedPointHash.QuiltHash, but this doesn't change the pattern in different large squares, and instead repeats a square or cube of symmetric and patterned results over and over (so it can be tiled).
static class	FlawedPointHash.FNVHash	FNV32a is OK as a hash for bytes when used in some hash tables, but it has major issues on its low-order bits when used as a point hash (the high bits aren't much better).
static class	FlawedPointHash.QuiltHash	Extremely flawed if you're using this as a point hash, but meant to be aesthetically interesting, this produces different symmetrical patterns in squares, as if on a quilt.
static class	FlawedPointHash.RugHash	Produces hashes that show strong bias on one axis (usually the later axes matter more) and have nice-looking patterns of dots.

Nested classes/interfaces inherited from interface squidpony.squidmath.IPointHash

IPointHash.IntImpl, IPointHash.LongImpl

Method Summary

Methods inherited from interface squidpony.squidmath.IPointHash

hash, hash, hash, hash, hashWithState, hashWithState, hashWithState, hashWithState, setState