Dylan T 48dcf0e32c Farmland: Remember relative location of nearby water in blockstate data (#6090) ...

Farmland can end up scanning up to 162 blocks looking for water in the worst case. This is obviously not great for huge farms where there are thousands of blocks of the stuff.

In most farms, the water won't be moved, and nor will the farmland. This means that we can avoid this costly search on random updates.

This PR implements a cache using blockstate data (only possible in PM5) which stores an index mapping to a coordinate offset where water was previously found by this farmland block. This allows the farmland to avoid water searching entirely in most cases.

This is a colossal improvement as compared to scanning the whole 9x2x9 area every time, which, on average, scans about 40 blocks to find water if the water is at the same Y coordinate. In real terms this translates into about a 8x performance improvement for farmland (see timings below).

2023-10-17 16:25:13 +01:00

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BlockSerializerDeserializerTest.php

Farmland: Remember relative location of nearby water in blockstate data (#6090)

2023-10-17 16:25:13 +01:00