WSF_SCRIPT_LAUNCHER_COMPUTER

launch_computer WSF_SCRIPT_LAUNCH_COMPUTER

launch_computer <name> WSF_SCRIPT_LAUNCH_COMPUTER
  ... launch_computer Commands ...

  script void compute_intercept(WsfTrack aTrack, double aLaunchDelay)
  end_script
end_launch_computer

Overview

WSF_SCRIPT_LAUNCH_COMPUTER implements a launch computer that uses the scripting language for determining if an intercept can occur.

The following example demonstrates how to implement a script-based launch computer. This example is very simple in that it assumes the target is flying straight-and-level at a constant speed, and that the weapon flies at the defined average speed. It shows:

• The required method name and signature.

• The predefined script variables.

• How to report the intercept results.

Note that the WsfLaunchComputer.SetInterceptTime call is required to report a successful intercept. Failure to call this method will indicate that an intercept is not possible.

Example

launch_computer EX_LAUNCH_COMPUTER WSF_SCRIPT_LAUNCH_COMPUTER

   # This is the required script method name and signature.

   script void compute_intercept(WsfTrack aTrack, double aLaunchDelay)

      # If needed the following additional script variables are pre-defined:
      #
      #       WEAPON   references the WsfWeapon to which the launch computer is attached.
      #       PLATFORM references the WsfPlatform to which the weapon is attached.

      double weaponSpeed = 500.0;         # Assumed weapon speed
      WsfWaypoint intercept = WsfWaypoint();
      double tti = PLATFORM.InterceptLocation2D(aTrack, intercept, weaponSpeed, aLaunchDelay);
      if (tti > 0.0)
      {
         WsfGeoPoint interceptPoint =
         WsfGeoPoint.Construct(intercept.Latitude(), intercept.Longitude(), aTrack.Altitude());
         SetInterceptPoint(interceptPoint);
         # The next call is the minimum requirement for reporting an intercept.
         SetInterceptTime(TIME_NOW + tti);
         SetLaunchTime(TIME_NOW + aLaunchDelay);
         SetTimeOfFlight(tti - aLaunchDelay);
      }
   end_script

end_launch_computer