[Threshold]

pawn Код:

forward bool:DoesPlayerHaveWeapons(playerid);
public bool:DoesPlayerHaveWeapons(playerid)
{
    new weap, am;
    for(new i = 0; i < 13; i ++)
    {
        GetPlayerWeaponData(playerid, i, weap, am);
        if(weap && am >= 1) return true;
    }
    return false;
}

A simplified version.