[cezaro]

Tenta

pawn Код:

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(newkeys == KEY_SECONDARY_ATTACK)
    {
        if(GetPlayerSpecialAction(playerid) == SPECIAL_ACTION_USEJETPACK)
        {
            SetPlayerSpecialAction(playerid, SPECIAL_ACTION_NONE);
        }
    }
    return 1;
}