Function hashcode

pub fn hashcode<H: Hash + ?Sized>(hashee: &H) -> u64

Get a hash for a value. This is handy for anytime you need a random-ish, but constant, value based on some other value.

One good usecase is variagated tilesets: pass in the tile’s ICoord position to this function and use it as a selector on the tile variants.

This isn’t guaranteed to be the same across compiles or restarts, but it will be the same for a given input value across one run of a program.

assert_eq!(hashcode(&10i32), hashcode(&10i32));
assert_ne!(hashcode(&10i32), hashcode(&600i32));