Fixed dt spike at tutorial card dismiss.

Devlog: Performance Fix - Tutorial Card Dismiss

Commit SHA: 9e00951468a361cd1127092072208ac6b63e947d

Author: pj90 (weirdcodesofficial)

Date: 2026-08-14 18:21:24 UTC

Message: performance-fix: fixes dt spike at tutorial card dismiss.

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Summary

Fixed a delta time (dt) spike that occurred when dismissing the tutorial card. The issue was that lastTime was only being updated conditionally when there was no active tutorial card, causing a large time gap on the next frame after dismissal.

Changes

File Modified: src/main.js

Before

// tutorial card dismiss होने पर dt spike न आए
if (!tutorial.hasActiveCard()) lastTime = ts;

After

// lastTime हमेशा update — pause/tutorial/shaashtra किसी में भी spike न आए
lastTime = ts;

Technical Details

• Issue: The conditional update of lastTime was causing delta time spikes because when the tutorial card was active, lastTime wasn't being updated. Upon dismissal, the accumulated time difference would create a large dt value in the game loop.

• Solution: Unconditionally update lastTime on every frame to ensure consistent delta time calculations, preventing spikes regardless of pause/tutorial/shaashtra states.

• Impact: Smoother gameplay experience without frame rate anomalies when dismissing the tutorial card.

Files Changed

src/main.js (+2 lines, -2 lines)

Game Context

This optimization is part of the MOKSHA project—an HTML5 browser game based on Sanatan Shastras and Karmic philosophy. The fix ensures the game maintains stable performance during tutorial interactions.