1 files changed, 15 insertions, 0 deletions
diff --git a/apps/web/src/timeline/snapping/threshold.ts b/apps/web/src/timeline/snapping/threshold.ts
new file mode 100644
index 00000000..f03111dc
--- /dev/null
+++ b/apps/web/src/timeline/snapping/threshold.ts
@@ -0,0 +1,15 @@
+import { BASE_TIMELINE_PIXELS_PER_SECOND } from "@/timeline/scale";
+import { TICKS_PER_SECOND } from "@/wasm";
+
+const DEFAULT_TIMELINE_SNAP_THRESHOLD_PX = 10;
+
+export function getTimelineSnapThresholdInTicks({
+	zoomLevel,
+	snapThresholdPx = DEFAULT_TIMELINE_SNAP_THRESHOLD_PX,
+}: {
+	zoomLevel: number;
+	snapThresholdPx?: number;
+}): number {
+	const pixelsPerSecond = BASE_TIMELINE_PIXELS_PER_SECOND * zoomLevel;
+	return (snapThresholdPx / pixelsPerSecond) * TICKS_PER_SECOND;
+}