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2 Commits

Include renames

Author	SHA1	Message	Date
Emil	f35f56b970	perf: CA optimization — 18 FPS → 83 FPS (4.6× speedup) with ×5 world scale - Cache active_chunks(): one allocation instead of 5 per tick - heat_transfer/gas_step/pressure_step: direct chunk array access (chunk.temps[idx], chunk.gas_*[idx], chunk.pressure[idx]) instead of grid.get_temp()/set_temp() (eliminates 5 chunk-lookups per cell) - In-place updated_this_tick reset via get_chunk_mut (no Cell copy, no mark_dirty) - light_step: gather sources first (one pass), skip if no sources, reduced radius (lava 25→12, fire 15→6), frequency 10→20 ticks - gas_step: skip chunks with no gas (gas_density all 0) - pressure_step: skip chunks with all atmospheric (128), add mark_dirty - pre_dirty: HashMap instead of Vec (O(1) lookup vs O(n) linear search) - Cross-chunk heat transfer: edge_temps pre-loaded before mutable borrow - Spread chunk save I/O: 1 chunk/tick instead of all every 60 ticks - All 185 tests + 14 scenarios pass - Benchmark: 82.7 FPS avg, p99 86ms (was 18 FPS, p99 442ms)	2026-06-22 08:55:40 +03:00
Emil	24b6d0320f	feat: multi-layer world — temperature, gas, pressure, light as parallel per-chunk arrays - Removed temp from Cell (13→9 bytes), added temps/pressure/gas_type/gas_density/light arrays to Chunk - Layer access via grid.get_temp()/set_temp()/get_gas()/set_gas()/get_pressure()/set_pressure()/get_light()/set_light() - cells_swap swaps all layers, set_material sets default_temp - heat_transfer refactored to direct array access on temps[] (no Cell copy) - CA rules refactored: cell.temp → grid.get_temp()/set_temp() - gas_step: gas flow (rise, spread), fire produces CO2+smoke, steam condenses to water, acid+organic→poison gas - pressure_step: pressure equalization for connected non-solid cells - light_step: world-space persistent lighting, updated every 10 ticks, ray-cast line-of-sight - Gas damage: poison gas damages entities, CO2 suffocates, applied before ca.step() - Multi-section chunk serialization (VWM1 magic + cells + temps + gas + pressure + light) - Old 12-byte chunk format auto-detected for backward compat - AI spectrum: new gas + pressure spectrums, light spectrum uses world-space fallback - Protocol: gas/pressure spectrum commands - pre_dirty mechanism: layer steps process pre-clear dirty rects for cross-cell diffusion - 14 new multilayer tests, all 185 tests + 14 scenarios pass - Benchmark: 85.9 FPS (graphics surface, was 128 pre-layers — 33% regression from 4 new layer steps)	2026-06-21 23:38:33 +03:00

Author

SHA1

Message

Date

Emil

f35f56b970

perf: CA optimization — 18 FPS → 83 FPS (4.6× speedup) with ×5 world scale

- Cache active_chunks(): one allocation instead of 5 per tick
- heat_transfer/gas_step/pressure_step: direct chunk array access
  (chunk.temps[idx], chunk.gas_*[idx], chunk.pressure[idx]) instead of
  grid.get_temp()/set_temp() (eliminates 5 chunk-lookups per cell)
- In-place updated_this_tick reset via get_chunk_mut (no Cell copy, no mark_dirty)
- light_step: gather sources first (one pass), skip if no sources,
  reduced radius (lava 25→12, fire 15→6), frequency 10→20 ticks
- gas_step: skip chunks with no gas (gas_density all 0)
- pressure_step: skip chunks with all atmospheric (128), add mark_dirty
- pre_dirty: HashMap instead of Vec (O(1) lookup vs O(n) linear search)
- Cross-chunk heat transfer: edge_temps pre-loaded before mutable borrow
- Spread chunk save I/O: 1 chunk/tick instead of all every 60 ticks
- All 185 tests + 14 scenarios pass
- Benchmark: 82.7 FPS avg, p99 86ms (was 18 FPS, p99 442ms)

2026-06-22 08:55:40 +03:00

Emil

24b6d0320f

feat: multi-layer world — temperature, gas, pressure, light as parallel per-chunk arrays

- Removed temp from Cell (13→9 bytes), added temps/pressure/gas_type/gas_density/light arrays to Chunk
- Layer access via grid.get_temp()/set_temp()/get_gas()/set_gas()/get_pressure()/set_pressure()/get_light()/set_light()
- cells_swap swaps all layers, set_material sets default_temp
- heat_transfer refactored to direct array access on temps[] (no Cell copy)
- CA rules refactored: cell.temp → grid.get_temp()/set_temp()
- gas_step: gas flow (rise, spread), fire produces CO2+smoke, steam condenses to water, acid+organic→poison gas
- pressure_step: pressure equalization for connected non-solid cells
- light_step: world-space persistent lighting, updated every 10 ticks, ray-cast line-of-sight
- Gas damage: poison gas damages entities, CO2 suffocates, applied before ca.step()
- Multi-section chunk serialization (VWM1 magic + cells + temps + gas + pressure + light)
- Old 12-byte chunk format auto-detected for backward compat
- AI spectrum: new gas + pressure spectrums, light spectrum uses world-space fallback
- Protocol: gas/pressure spectrum commands
- pre_dirty mechanism: layer steps process pre-clear dirty rects for cross-cell diffusion
- 14 new multilayer tests, all 185 tests + 14 scenarios pass
- Benchmark: 85.9 FPS (graphics surface, was 128 pre-layers — 33% regression from 4 new layer steps)

2026-06-21 23:38:33 +03:00