main repo

node_modules/motion-dom/dist/es/frameloop/sync-time.mjs

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+import { MotionGlobalConfig } from 'motion-utils';
+import { frameData } from './frame.mjs';
+
+let now;
+function clearTime() {
+    now = undefined;
+}
+/**
+ * An eventloop-synchronous alternative to performance.now().
+ *
+ * Ensures that time measurements remain consistent within a synchronous context.
+ * Usually calling performance.now() twice within the same synchronous context
+ * will return different values which isn't useful for animations when we're usually
+ * trying to sync animations to the same frame.
+ */
+const time = {
+    now: () => {
+        if (now === undefined) {
+            time.set(frameData.isProcessing || MotionGlobalConfig.useManualTiming
+                ? frameData.timestamp
+                : performance.now());
+        }
+        return now;
+    },
+    set: (newTime) => {
+        now = newTime;
+        queueMicrotask(clearTime);
+    },
+};
+
+export { time };