35 lines
2.2 KiB
Markdown
35 lines
2.2 KiB
Markdown
|
|
Better Random
|
|
=======
|
|
|
|
##### Disclaimer
|
|
This mod changes RNG, and as such, affects worldgen greatly, so with this mod alone installed vanilla world seeds will no longer
|
|
be reproducible. If you care about preserving vanilla worldgen parity in your modpack, **refrain** from installing this mod.
|
|
|
|
You were warned.
|
|
|
|
### About the mod
|
|
Better Random, or Better PRNG if you prefer, is a mod which replace Minecraft's default
|
|
[Linear congruential generator](https://en.wikipedia.org/wiki/Linear_congruential_generator)
|
|
(LCG for short, used for generating most of random game events, as well as generator used when generating world features)
|
|
and Xoshiro128PlusPlus (used to generate "sequences" aka random generator used for `LootPool`s)
|
|
with a better random number generator, [gjrand](https://gjrand.sourceforge.net).
|
|
|
|
### Features:
|
|
* Replaces `RandomSupport#create`, and subsequently, `Entity#random`, `Level#random`, worldgen (but not noise map, which means world will have same elevation, but different feature placement), countless other places including mods;
|
|
* Patches `WorldgenRandom` to convert `LegacyRandomSource` and `XoroshiroRandomSource` to random provided by Better Random, albeit patch is lazy and it may interfere with other mods which deliberately want these random generators to be underlying generators;
|
|
* Replaces `RandomSequence` and `RandomSequences` with versions which use gjrand;
|
|
* Replaces `Level#getBlockRandomPos` to use `Level#random`. Previously, `getBlockRandomPos` utilized LCG with even worse properties than one of `Level#random`.
|
|
|
|
### Caveats:
|
|
* Slime chunk function was patched to be hardwired to LegacyRandomSource so they don't change with this mod installed.
|
|
|
|
### Compatibility:
|
|
|
|
Should be compatible with everything that doesn't go around public interfaces vanilla code provide.
|
|
Existing `RandomSequence` saved data is left untouched (in meaning that nothing is done to it through code,
|
|
but Minecraft continue to load/create it upon server start), and removing Better Random mid-game won't have any
|
|
noticeable side effects (but world generation *may* look weird after installing/removing the mod, because
|
|
`RandomSupport#create` is used to determine how to place world features, such as ores and trees).
|
|
|