Changelog

Version: 0.1.7
Date: 2026-04-13
  Optimisations:
    - Spark effect search now scoped to 40-tile radius around each player (was searching entire surface causing 4-230ms spikes).
    - Interval increased to 120 ticks (~2s), max 5 sparks per player, limit 20 entities per search.
    - Eliminates surface-wide entity scanning — the largest single performance bottleneck.

Version: 0.1.6
Date: 2026-04-13
  Optimisations:
    - Spark effect system now only scans surfaces with players present (was scanning all surfaces every 45 ticks).
    - Single find_entities_filtered call with name array instead of 14 separate queries per surface.
    - Spark interval doubled from 45 to 90 ticks, max sparks reduced from 20 to 10 per sweep.
    - Removed redundant per-spawner ore proximity check during chunk generation (chunk ore threshold is sufficient).
    - Single unit-spawner type query replaces two separate biter-spawner + spitter-spawner queries.

Version: 0.1.5
Date: 2026-04-13
  Bugfixes:
    - Fixed ore spawners being placed by map generator via inherited autoplace settings. Spawners now only appear via control.lua logic, respecting the 'Allow ore biters on surface' setting.

Version: 0.1.4
Date: 2026-04-12
  Features:
    - Added custom Voltaic Biter sprites replacing default base game biter appearance.
    - Added electrical spark effects on attack for biters, spitters, and worms.
    - Added periodic ambient spark effects on all living voltaic entities (biters, spitters, worms, spawners).
    - Standalone mode: Voltaic Biters now spawn on the surface near copper ore patches when used without Mineshafts mod.
    - With Mineshafts mod: Surface spawning controlled via "Allow ore biters on surface" setting (default off).
    - Mineshafts is now an optional dependency.
  Bugfixes:
    - Fixed sprite loading for multi-file sprite sheets (filenames array support).
    - Fixed circular dependency error when used together with Mineshafts mod.
    - Fixed Factorio 2.0 API compatibility: game.active_mods replaced with script.active_mods.
    - Fixed biters incorrectly spawning on mineshaft underground surfaces.
    - Fixed spawners being replaced far from ore patches. Spawners now only convert when matching ore is within 32 tiles.

Version: 0.1.3
Date: 2026-04-11
  Features:
    - Initial release of Voltaic Biters (copper-infused variants).
    - 4 biter sizes: small, medium, big, behemoth.
    - 4 spitter sizes: small, medium, big, behemoth.
    - 4 worm sizes: small, medium, big, behemoth.
    - 1 biter spawner and 1 spitter spawner.
    - 20% faster attack speed over standard biters.
  Bugfixes:
    - Fixed sprite loading: Custom sprites now load correctly for multi-file sprite sheets (filenames array support).