public SpectateNext(playerid) {
    for(new i = 1, j = SpectatedPlayer[playerid] + 1; i < MAX_PLAYERS; ++i, j = (j + 1) % MAX_PLAYERS) {
        if(IsPlayerConnected(j)) {
            switch(GetPlayerState(j)) {
                case 1: PlayerSpectatePlayer(playerid, j);
                case 2, 3: PlayerSpectateVehicle(playerid, GetPlayerVehicleID(j));
                default: continue;
            }
            SpectatedPlayer[playerid] = j;

            new
                str[128]
            ;
            format(str, sizeof str, "You are now spectating %s (ID:%d).", GetName(j), j);
            return SendClientMessage(playerid, colorSPECTATE, str);
        }
    }
    return false;
}