[IamPRO]

pawn Код:

//at the top will be good under the includes//
new Float:SuperJump[3];
//anywhere outside all the call backs//
CMD:superjump( playerid, params[ ] )
{
    #pragma unused params
    if(PlayerInfo[playerid][SjKey] == 1)
    {
        PlayerInfo[playerid][SjKey] = 0;
        SendClientMessage(playerid, COLOR_RED, "You turned off Super Jump {00FF00}(/Superjump)");
        return 1;
    }
    else
    {
        PlayerInfo[playerid][SjKey] = 1;
        SendClientMessage(playerid, COLOR_RED, "You turned on Super Jump. Press {00FF00}LShift {FF0000}to use it");
        return 1;
    }
    return 1;
}
//onplayerkeystatechange//
    if ( newkeys & KEY_JUMP && PlayerInfo[ playerid ][ SjKey ] == 1 )
    {
        SetPlayerVelocity(playerid, SuperJump[0], SuperJump[1], SuperJump[2]+5);
        return 1;
    }
//At Onplayerupdate//
         GetPlayerVelocity(playerid, SuperJump[0], SuperJump[1], SuperJump[2]);

Tested! works fine for me.