CVAR Masks

Masks are used extensively within CS:GO in order to represent different options that can coexist. One of the more common uses within the TTT project itself is to be able to choose multiple roles within a single CVAR.

Consider the following values:

#define TTT_TEAM_UNASSIGNED (1 << 0) // 0001 in binary, 1 in decimal
#define TTT_TEAM_INNOCENT (1 << 1) // 0010 in binary, 2 in decimal
#define TTT_TEAM_TRAITOR (1 << 2) // 0100 in binary, 4 in decimal
#define TTT_TEAM_DETECTIVE (1 << 3) // 1000 in binary,  8 in decimal

If one wants to enable a mask for both INNOCENT and DETECTIVE but not for either of the other two teams, one can simply add together the decimal values of those items (8 + 2 = 10). In binary, this is represented as 1010. This format allows us to quickly determine whether a a number has that specified flag enabled using an AND operation, e.g.:

TTT_TEAM_TRAITOR & 10 // false
TTT_TEAM_DETECTIVE & 10 // true

---

Examples for convar values:

• 2 - Innocent
• 4 - Traitor
• 8 - Detective
• 6 (2 + 4) - Innocent + Traitor
• 10 (2 + 8) - Innocent + Detective
• 12 (4 + 8) - Traitor + Detective
• 14 (2 + 4 + 8) - Innocent + Traitor + Detective