[FILTERSCRIPT] Speed Hack

#include    <a_samp>

new SpeedBoost[MAX_PLAYERS];

stock IsKeyJustDown(key, newkeys, oldkeys)
{
    if((newkeys & key) && !(oldkeys & key))
        return 1;

    return 0;
}

stock IsKeyReleased(key, newkeys, oldkeys)
{
    if(!(newkeys & key) && (oldkeys & key))
        return 1;

    return 0;
}

public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    if(IsKeyJustDown(KEY_FIRE, newkeys, oldkeys))
    {
        if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
            SpeedBoost[playerid] = 1;
        }
    }
    if(IsKeyReleased(KEY_FIRE, newkeys, oldkeys))
    {
        if(SpeedBoost[playerid] > 0)
        {
            new Float:vx, Float:vy, Float:vz, vehicleid = GetPlayerVehicleID(playerid);
            GetVehicleVelocity(vehicleid, vx, vy, vz);
            if(floatabs(vx) < 3 && floatabs(vy) < 3 && floatabs(vz) < 3)
            {
                SetVehicleVelocity(vehicleid, vx * 0.95, vy * 0.95, vz * 0.95);
            }
            SpeedBoost[playerid] = 0;
        }
    }
    return 1;
}

public OnPlayerUpdate(playerid)
{
    if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
    {
        if(SpeedBoost[playerid] > 0)
        {
            new Float:vx, Float:vy, Float:vz, vehicleid = GetPlayerVehicleID(playerid);
            GetVehicleVelocity(vehicleid, vx, vy, vz);
            if(floatabs(vx) < 3 && floatabs(vy) < 3 && floatabs(vz) < 3)
            {
                SetVehicleVelocity(vehicleid, vx * 1.05, vy * 1.05, vz * 1.05);
            }
        }
    }
    return 1;
}