[Jf]

PHP Code:

// Simple Jump / Speed / Fix using keys.
#define HOLDING(%0) ((newkeys & (%0)) == (%0))
#define JUMP_MULTIPLIER 0.5
#define SPEED_MULTIPLIER 1.5
public OnPlayerKeyStateChange(playerid, newkeys, oldkeys)
{
    // Speed Boost (Press ALT / LCTRL)
    if( HOLDING( KEY_ACTION ) )
    {
        if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER) // Only the driver of the vehicle is able to do this!
        {
            new
                Float:f_x, Float:f_y, Float:f_z;
                   
            GetVehicleVelocity(GetPlayerVehicleID(playerid), f_x, f_y, f_z);
            SetVehicleVelocity(GetPlayerVehicleID(playerid), f_x * SPEED_MULTIPLIER, f_y * SPEED_MULTIPLIER, f_z * SPEED_MULTIPLIER);
        }
    }
    
    // Flip & Fly (Press 2)
    if( HOLDING( KEY_SUBMISSION ) )
    {
        if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER) // Only the driver of the vehicle will be able to do this!
        {
            new
                Float:f_x, Float:f_y, Float:f_z, vID = GetPlayerVehicleID(playerid);
            
            // Fly
            GetVehicleVelocity(vID, f_x, f_y, f_z);
            SetVehicleVelocity(vID, f_x, f_y, f_z + JUMP_MULTIPLIER);
            
            // Repair
            RepairVehicle(vID);
            SetVehicleHealth(vID, 1000.0);
        }
    }
    return 1;
}