return nearest mon if point out of range

src/helpers/MiscFunctions.cpp

@@ -140,4 +140,10 @@ int getWorkspaceIDFromString(const std::string& in, std::string& outName) {
     }
 
     return result;
+}
+
+float vecToRectDistanceSquared(const Vector2D& vec, const Vector2D& p1, const Vector2D& p2) {
+    const float DX = std::max((double)0, std::max(p1.x - vec.x, vec.x - p2.x));
+    const float DY = std::max((double)0, std::max(p1.y - vec.y, vec.y - p2.y));
+    return DX * DX + DY * DY;
 }