Speed Boost & Jump Car

#include <a_samp>

new EnableBoast[MAX_PLAYERS];

#if defined FILTERSCRIPT

public OnFilterScriptInit()
{
    print("\n--------------------------------------");
    print("SpeedBoost By Faour");
    print("--------------------------------------\n");
    return 1;
}

public OnFilterScriptExit()
{
    print("\n--------------------------------------");
    print("Un Loaded Boost By Faour");
    print("--------------------------------------\n");
    return 1;
}

#else

main()
{


print("////////////////////////////////////////////////////////////////////////\n");
print("________________________________________________________________________\n");
print("/////////\n");
print("//\n");
print("//\n");
print("//\n");
print("////////    /////////        /////////     /       /      /////////\n");
print("//          /       /        /       /     /       /       //\n");
print("//          /       /        /       /     /       /       //\n");
print("//          /       /        /       /     /       /       //\n");
print("//          ///////////      /////////     /////////       //\n");
print("________________________________________________________________________\n");
print("////////////////////////////////////////////////////////////////////////\n");
print("Speed Boost By Faour = Aloushi");

}

#endif




public OnPlayerSpawn(playerid)
{
EnableBoast[playerid] = 0;
return 1;
}


public OnPlayerCommandText(playerid, cmdtext[])
{
    if(!strcmp(cmdtext, "/Boost", true))
    {
    if(EnableBoast[playerid])
    {
    EnableBoast[playerid] = 0; //will enable boast
    SendClientMessage(playerid, 0x924161FF, "[ ! ] Boost Deactivated.");

    }
    else
    {
    EnableBoast[playerid] = 1; //will enable boast
    SendClientMessage(playerid, 0x924161FF, "[ ! ] Boost Activated.");

    }
    return 1;
    }
    return 0;
}
public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{

        if (IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {

        if(newkeys & KEY_FIRE)
        {



        if(EnableBoast[playerid] == 1)
        {
        new Float:vx,Float:vy,Float:vz;
        GetVehicleVelocity(GetPlayerVehicleID(playerid),vx,vy,vz);
        SetVehicleVelocity(GetPlayerVehicleID(playerid), vx * 1.8, vy *1.8, vz * 1.8);
        }
        }
        }


        if (IsPlayerInAnyVehicle(playerid) && GetPlayerState(playerid) == PLAYER_STATE_DRIVER)
        {
        if (newkeys & KEY_CROUCH)
        {

        if(EnableBoast[playerid] == 1)
        {
        new Float:x, Float:y, Float:z;
        GetVehicleVelocity(GetPlayerVehicleID(playerid),x,y,z);
        SetVehicleVelocity(GetPlayerVehicleID(playerid),x,y,z+0.3);
        }
        }
        }
        return 1;
        }