add burst

src/AtmosphereScene.jsx

@@ -69,13 +69,28 @@ function GoogleMaps3DTiles() {
   );
 }
 
-export default function AtmosphereScene({ timeScale: timeScaleProp }) {
+export default function AtmosphereScene({ timeScale: timeScaleProp, overrideDate, overrideTimeScale }) {
   const { gl } = useThree();
   const sunRef = useRef();
   const atmosphereRef = useRef();
   const dateRef = useRef(new Date(INITIAL_DATE));
+  const savedDateRef = useRef(null);
   const timeScaleRef = useRef(timeScaleProp ?? TIME_SCALE);
-  timeScaleRef.current = timeScaleProp ?? TIME_SCALE;
+
+  // Override date for burst effect
+  const hasBurstRef = useRef(false);
+  useEffect(() => {
+    if (overrideDate) {
+      hasBurstRef.current = true;
+      dateRef.current = new Date(overrideDate);
+    } else if (hasBurstRef.current) {
+      hasBurstRef.current = false;
+      // Burst ended: set to sunrise
+      dateRef.current = new Date('2024-06-22T10:00:00');
+    }
+  }, [overrideDate]);
+
+  timeScaleRef.current = overrideTimeScale ?? timeScaleProp ?? TIME_SCALE;
   const [weather, setWeather] = useState(WEATHER_PRESETS[1]);
 
   useEffect(() => {