Answer by RNOVAKOSKY

in C++ is possible to do: if ( !(flag1 & flag2) ) ... but in C# Script the operator '!' cannot be applied this form, need to translate to: if ( (flag1 & flag2) == 0) ... so, translation to C#: C++ ... if ( !(flag1 & flag2) ) C# ... if ( (flag1 & flag2) == 0) and C++ ... if ( (flag1 & flag2) ) C# ... if ( (flag1 & flag2) != 0) unfortunally to do it, C# is less intuitive....