Drone Grid Case Study: Creating the Enemies - Beginning Android 3D Game Development - page 280

Listing 8-17. Loading a Vehicle Command
void LoadState(String Handle)
{
SharedPreferences settings = m_Context.getSharedPreferences(Handle, 0);
// Command
String CommandHandle = Handle + "Command";
String CommandStr = settings.getString(CommandHandle, "None");
m_Command = MatchCommand(CommandStr);
// Rest of Code
....
}
The IncrementWayPointIndex() function increments the m_CurrentWayPointIndex variable, which
holds the index of the current waypoint that the vehicle is moving toward. If the last point in the
set of waypoints has already been reached, then the next waypoint is the starting waypoint.
(See Listing 8-18.)
Listing 8-18. Incrementing the WayPoint Index
void IncrementWayPointIndex()
{
int NextWayPointIndex = m_CurrentWayPointIndex + 1;
if (NextWayPointIndex < m_NumberWayPoints)
{
m_CurrentWayPointIndex = NextWayPointIndex;
}
else
{
// Loop Waypoints
m_CurrentWayPointIndex = 0;
}
}
The ClearCommand() function clears the vehicle command and the m_ObjectsAffected variable to
None. (See Listing 8-19.)
Listing 8-19. Clearing the Vehicle Command
void ClearCommand()
{
m_Command = AIVehicleCommand.None;
m_ObjectsAffected = AIVehicleObjectsAffected.None;
}