#include <a_samp>
#include <ZCMD>
#define COLOR_GREY 0xAFAFAFAA
new masked[MAX_PLAYERS];

CMD:mask(playerid,params[])
{
        if(IsPlayerAdmin(playerid)) return SendClientMessage(playerid, COLOR_GREY, "You are not authorized to use that command!");
        masked = !masked  ? (1) : (2);
        SendClientMessage(playerid, -1, !masked ? ("You are now masked and your name is hidden.") : ("You are no longer masked and your name is visble.");
        for(new i,j = GetMaxPlayer();i<j;i++)  ShowPlayerNameTagForPlayer(playerid, a, !masked ? ( false ) : (true) );
        return 1;
}