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Vault Faster

Minecraft Vault Hunters optimization mod with one goal: make vault world generation faster.
More than 40x performance improvement.

List of changes:

  • [batchsetblocks/*] optimised algorithm for placing blocks
    • skips heightmap updates
    • subchunks are processed in parallel
    • locks chunk only once per section instead of every block
    • skips iskallia.vault.core.event.CommonEvents.BLOCK_SET event
  • [MixinBlockRegistryIndex.java, PartialBlockRegistryIndex.java, IndexedBlock.kt] replaced "string ids"/ResourceLocations of blocks and PartialTiles with "numerical ids"/registryIndex
  • [TileMapper.kt] added tile mapper; algorithm for minimizing number of applicable iskallia.vault.core.world.processor.tile.TileProcessors by storing them in multimap indexed with numerical id of a block
  • cached some values
  • [NoBiomeDecorations.java] removed biome decorations and custom structures; those aren't supposed to be there and can cause concurrency crashes
  • [*StreamedTemplate] replaces Template.getTiles with StreamedTemplate.getTileStream(), which doesn't require custom iterators and it's parallel
  • [MixinCascade.java, MixinCascadeProperties.java] optimizes cascading modifiers
  • [VaultBypassMailbox.java] enables world generator to process chunks in parallel
  • multiple fixes

New Events

ObjectiveTemplateEvent: for placing POIs of objectives (lodestone, scavenger table, braziers, etc...); this was previously done with BlockSetEvent, which was just too slow.

  • please, do not fork this repo just to add support for custom objectives; registering this event is all you should need

TemplateConfigurationEvent: for additional configuration of templates before they're placed; this vas previously done with TemplateGenerationEvent which caused concurrency crashes and other unxepected behavior when multi-threading was introduced

Performance

tunnel_span=0 (vault without tunnels, this is much more demanding), allocated 18GB of ram:

  • unmodified: 5 chunks per second
  • modified: 390 chunks per second
  • modified, no HT: 440 chunks per second
  • ram speed also had a significant impact