osd: hide on mouse movement

works for left side but not right side... oh well, still better than nothing

.config/ags/modules/.miscutils/mathfuncs.js

@@ -7,4 +7,10 @@ export function truncateToPrecision(value, precision) {
     const factor = Math.pow(10, precision);
     const result = Math.round(value * factor) / factor;
     return result;
+}
+
+export function distance(x1, y1, x2, y2) {
+    const distanceX = Math.abs(x1 - x2);
+    const distanceY = Math.abs(y1 - y2);
+    return Math.sqrt(distanceX * distanceX + distanceY * distanceY)
 }