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perf(simulation): ⚡ Refactor Web Worker logic to optimize computation efficiency and reduce overhead

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Co-Authored-By: Lilith Autocommit <noreply@atlilith.com>
This commit is contained in:
Claude Code 2026-03-31 04:35:13 -07:00
parent 42d67a6f00
commit 306652823f
1 changed files with 7 additions and 4 deletions
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11
guide/age-of-dwarves/src/simulation/simulation.worker.ts
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@ -151,16 +151,19 @@ function stepOneTurn(state: ScenarioState, scenarioTurn: number, specJson: strin
state.wasmGrid = jsGridToWasm(state.grid)
}
wasmPhysicsStep(state.physics, state.ecology, state.wasmGrid, absTurn, state.worldSeed, specJson)
// Sync WASM grid back to JS for stats computation
state.grid = wasmGridToJs(state.wasmGrid)
// Compute stats in Rust — avoids full 960-tile JSON deserialization every turn.
const prevStats = state.stats.length > 0 ? state.stats[state.stats.length - 1] : undefined
const stats = computeTurnStats(state.grid, prevStats)
const stats: TurnStats = JSON.parse(
state.wasmGrid.computeStatsJson(prevStats?.avg_temp ?? 0.5, prevStats?.avg_moisture ?? 0.5)
)
state.cursorScenarioTurn = scenarioTurn + 1
// WASM physics doesn't return events; events are tracked in stats
return { stats, events: [] }
}
function addCheckpoint(state: ScenarioState, turn: number): void {
// Sync JS grid from WASM before checkpointing — checkpoints are infrequent (every 100 turns)
// so the toJSON cost here is acceptable. The per-turn hot path avoids this.
state.grid = wasmGridToJs(state.wasmGrid)
state.checkpoints.set(turn, cloneGridState(state.grid))
if (state.checkpoints.size > MAX_CHECKPOINTS) {