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- Cache calculateServiceCoverage when service buildings unchanged (skips O(n²) recalc every sim tick - only recalc on place/bulldoze) - Merge syncFromRef into vehicle render loop - eliminate redundant rAF loop - Rate-limit findRailroadCrossings to 250ms (rail structure unchanged during sim) - React.memo on CanvasIsometricGrid to skip re-renders when props unchanged - Turbopack for dev server (~10x faster HMR) - Strip console.log in production builds Co-authored-by: Andrew Milich <milichab@gmail.com>
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xkonjin
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Mar 8, 2026
xkonjin
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xkonjin
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Quick review pass:
- Main risk area here is input validation, path handling, and malformed payload behavior.
- I didn’t see targeted regression coverage in the diff; please add or point CI at a focused test for the changed path in next.config.js, package.json, CanvasIsometricGrid.tsx (+1 more).
- Before merge, I’d smoke-test the behavior touched by next.config.js, package.json, CanvasIsometricGrid.tsx (+1 more) with malformed input / retry / rollback cases, since that’s where this class of change usually breaks.
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Implement multiple performance optimizations to significantly speed up game simulation and rendering.